Mirta Rastija

Response of maize to fertilization with KCl on gleysol of Sava valley area

Five maize ( Zea mays L.) hybrids were grown for four growing seasons on gleysol characterized by moderate supply with potassium (K). Three rates of KCl were applied in four replicates at the beginning of April 2001 as follows (kg K 2 O/ha): 150 (control), 650 and 1400. The highest rate of KCl resulted in significant increases of yield of 14%, 24% and 12%, for 2001, 2002 and 2003, respectively; while in the fourth year similar yields to the control were found. The OsSK552 and Bc5982 hybrids (4-year mean 8.70 t/ha) were more susceptible to soil stress in comparison with OsSK444 and OsSK458 (mean 9.07 t/ha). At the same time, Florencia hybrid yielded 9.37 t/ha. Four hybrids responded similarly to applied fertilization (yield increases from 13 to 16% in comparison to the control), while Florencia had low response to KCl (yield increase for 5% only). Under these conditions we recommend combined solution using 1000 kg K 2 O/ha every third year and a choice of tolerant hybrids.

Response of maize and soybeans to ameliorative fertilization in Bjelovar-Bilogora county

Maize and soybeans were grown under field conditions on acid soil (pH in KCl = 3.99). The field trail was conducted in spring 2004 as follows: a = ordinary fertilization, b = a + NPK-1, c = a + NPK-2, d = a + NPK-3 and e = a + NPK-4. The fertilizer NPK 10:30:20 was source of P and K (using in amounts 416, 1249, 2082, 2916 and 3748 kg/ha, for the treatments a, b, c, d and e, respectively. Nitrogen amount was equilized for all treatments by addition of adequate quatities of CAN (calcium ammonium nitrate: 27% N) were used. The experiment was conducted in four replicates. By application of the ameliorative rates of NPK fertilizer, grain yields of maize significantly increased to level of 14% compared to standard fertilization (12.33 and 14.00 t ha −1 , for the control and the second rate of NPK fertilization, respectively. Only the highest rate of NPK fertilizer resulted by significant increase of protein in grain. Residual response of soybean (the growing season 2005) to the fertilization was considerably hi...

INFLUENCES OF LIMING ON NUTRITIONAL STATUS OF SOIL

Soil acidity and problems associated with it (elemental toxicities and deficiencies, primarily an inadequate level of phosphorus) are in many cases limiting factor of crops yield in Croatia The aim of this study was testing the impact of liming with carbocalk (waste of sugar beet factory with total Ca contents about 340 g kg-1) on the nutritional status of soil surface layer on a stagnic albeluvisol. Liming treatments were as follows: 0, 15, 30, 45, 60 and 90 t ha-1. Increasing rates of carbocalk gradually raised soil pH value and that effect was significant at all treatments in the fourth year after liming. Overall, increased soil pH had the positive impact on phosphorus availability, whilst the micronutrients solubility mostly was reduced. Due to antagonism with Ca-ions, whose contents were considerably increased, potassium availability were declined, but that effect were significant only at the higher liming rates. As regards Fe, Al and Zn status, there weren’ t notable differences among liming treatments. It can be concluded, that the most positive effect on nutritional status of investigated stagnic albeluvisol had the carbocalk rates of 30 and 45 t ha-1, while the higher rates led to nutrient unbalances.

Weather Conditions and Yield of Wheat in Bosnia and Herzegovina with Emphasis on Climatic Change and Tuzla Canton

The aim of this study was to test the impact of monthly precipitation and temperature regimes on winter wheat yields in Bosnia and Herzegovina (BH JAERI, 7(2): 1-9, 2016; Article no.JAERI.23994 2 Precipitation close to the 30-year average (663 mm, 642 mm and 636 mm) and their balanced monthly distribution characterized three growing seasons favorable for wheat (2007/2008, 2008/2009 and 2012/2013, respectively). Also, the temperature regime was without excessive cold or warm periods in these years. Under these conditions, wheat yields were considerably higher (3.7, 3.8 and 3.9 t ha, respectively) than in three estimated unfavorable years (2002/2003, 2009/2010 and 2013/2014 with 2.3, 2.7 and 2.9 t ha, respectively). Weather deviations as either drought or excessive precipitation in combination with high temperatures characterized estimated less favorable years. Tuzla Canton had about 5% of the national wheat harvested area, whereas yields were somewhat higher compared to the country average. Although it is evident that yields of wheat and weather conditions in B&H are very different between years, by performing simple correlation analysis there was found a minimal connection of precipitation and temperature with yields. Significant negative correlations were found only in level TC between yields and monthly values of precipitation in April (-0.88**), May (-0.70**) and total precipitation (-0.73**). Also, significant positive correlations were found between April (0.76**) and May (0.62*) temperature and yields.

Impact of liming on micronutrients status in maize grain

B of rapidly increasing population and limited agricultural areas, it becomes compulsory to fight against viral contamination that disrupts effective agricultural production. In this study, use of NMR Relaxometry is investigated to see the effect of salt diffusion and to detect seeds, which had been infected by virus. Tobacco mosaic virus (TMV) infected tomato is chosen since tomato has a high commercial value in sector. T2 relaxation times were measured by using low resolution NMR Relaxometry. Tomato seeds were diluted with distilled water and with 10%, 20%, 30% NaCI solutions and measurements were done by 15min intervals. T2 values of diluted virus free seeds has dropped to 278 ms from 372 ms after 1 day waiting and has dropped to 189 ms after 2 days. In order to distinguish signals coming from different compartments of seed, relaxation spectra were obtained. At seeds diluted with distilled water, it was observed that T2 of peaks have become closer to each other after 1 day due to diffusion of water into cells and becoming relative water by time. In infected seeds, merging of peaks and decrease in T2 were observed after 1 day. 3 peaks were observed at relaxation spectra after 2 day. Presence of viruses in seeds causes changes in cell structure which can directly be observed by relaxation spectra. Seeds diluted with NaCI solution revealed higher T2 values because of lysis of cell wall and diffusion of more water into cell. These results have proved that NMR Relaxometry can accurately be used in differentiation of infected seeds.T use of a non-destructive fluorescence sensor (Multiplex®-Force-A, Orsay, France) allowed for the selection of grapes with higher and lower phenolic content directly on the vines. The sensor detects fluorescence emitted by chlorophyll under excitation with different LED sources in the UV (375 nm) and visible (blue at 450 nm, green at 515 nm and red at 630 nm). It provides an index of anthocyanins (ANTH_RG) on the basis of their differential screening effect on different chlorophyll excitation lights. The mapping of anthocyanins (anth) content was performed just before harvest at the Fattoria di Magliano winery (South Tuscany, Italy) in mid-September 2013 on grape bunches of Cabernet Sauvignon cv. Optical measurements were performed manually on a 4 ha vineyard using a 15×15 m grid. Once calibrated against wet chemistry of berry samplings (Glories method), the ANTH_RG showed a high spatial variability of the anth content between 865 and 3000 mg/L. Based on this, the vineyard was divided in two areas with the lowest and highest anth level by segmentation according to the mean value (1670 mg/L) allowing to perform a selective harvest and consequently a separated vinification. A first sensory evaluation of wines placed in barrels showed a significant difference between the two plots for both colour and flavour intensity. The wine with the highest anth content was marked by greater complexity, persistence and quality. Our study showed the utility of a nondestructive optical sensor in precision viticulture to produce high quality wines.T aim of this study was to assess the ability of Ligularia fischeri (LF) extract to attenuate ethanol-induced oxidative stress accompanied by hepatotoxicity both in vitro and in vivo. LF extract at different concentrations (50-500 μg/ml) prevented excessive generation of reactive oxygen species with no cytotoxicity in NCTC-1469 cell lines treated with or without 100 mM ethanol. In vivo study was carried out in an alcohol-fed rat model orally administered ethanol with or without LF extracts (100 mg or 200 mg/kg body weight) for 6 weeks. Liver injury markers in serum were attenuated upon LF extract supplementation. Further, LF extract significantly reduced hepatic lipid peroxidation, activated the antioxidant defense system and down-regulated cytochrome P4502E1 in the liver. Lastly, LF extract treatment reduced expression of pro-inflammatory cytokines and diminished alcohol-induced abnormal morphological changes.T paper presents the results of head rice yield research of rice varieties and genotypes grown in the Republic of Macedonia, conducted within the period 2009-2014. In total sixteen varieties and five genotypes were included, of which three Macedonian varieties (Biser 2, Prima riska and Montesa), three introduced Italian varieties, the most widely used in Macedonian rice production (Monticelli, R-76/6 and San Andrea), five newly introduced Italian varieties (Bianca, Galileo, Brio, Ellebi and Opale), five newly introduced Turkish varieties (Kiziltan, Gala, Halilbey, Gönen and Pasali) and five newly bred Macedonian rice genotypes (P1 x M, P2 x M, P x MM, MBL x M and MBL x MM). Laboratory milling was performed on a paddy quality testing machine to determine the head rice yield and byproducts of milling: brokens, brans and husks. According to the results, the highest head rice yield (percent of whole grains after milling rough rice kernels) of the domestic varieties was achieved in Biser-2 (54.01%), while the lowest was in Prima riska (49.38%). The highest head rice yield of the prevalent Italian varieties was 59,68% (Monticelli) ant the lowest one was 43.35% (San Andrea). Regarding the newly introduced Italian varieties, the values for the head rice yield were from 35.4% (Galileo) to 64.46% (Ellebi). Among Turkish varieties, Kiziltan showed the highest head rice yield (62,67%) and Gönen the lowest (43.34%). In the newly bred Macedonian rice genotypes, the head rice yield was from 55.60% (P1 x M) to 63.77% (P x MM). The percentage of brokens, bran and hulls in all investigated varieties and genotypes varied in different years of productionT aim of this study was to determine the effects of water extracts from various co-pigment sources (sour cherry stem, cherry stem, pomegranate rind and rose petal) and various sweeteners (sucrose, honey and maltose syrup) on color intensity (CI) of strawberry nectars. Strawberry nectar containing no co-pigment/sweetener was evaluated as control group. Moreover, gallic acid known as one of the strongest co-pigments was also added to strawberry nectar and its effect was compared with those of the other co-pigment sources. The ratio of co-pigments to anthocyanins in the nectars was 10:1 (w/w) and the temperature was at 20°C. The co-pigmentation effects in the products were determined by taking into consideration of hyperchromic (color intensity, ΔAmax) and bathochromic (maximum wavelength, Δλmax) shifts. Surprisingly, rose petal extract had higher (6%) co-pigmentation effect than gallic acid. However, significant reductions in CI of the nectars were determined after addition of cherry stem (6%) and pomegranate rind (3%) extracts. While the highest CI was determined in the nectars containing maltose, honey showed reducing effect (up to 5%) on CI. The combination of co-pigment extracts and sweeteners showed both synergistic and antagonistic effects on CI. Therefore, the combination should be carefully chosen. If the nectars containing gallic acid, sour cherry stem and cherry stem extracts will be produced, maltose should be used as a sweetener. Similarly using maltose in control group also increased CI. However, if the nectars containing rose petal and pomegranate rind extracts will be produced, sucrose should be used.A investigation was carried out to evaluate control points in a pilot plant designed for sugarcane juice processing. The juice was extracted in a stainless steel electric cylinder mill and then acidified with citric acid until attaining the pH of 4.3. Next it was pasteurized in a plate heat exchanger at 95oC/30 s and then cooled to 10oC before being filled into a plastic bottle and induction sealed. The Pproduct s filling was performed in an ISO class 5 unidirectional air-flow cabins. Bottles were decontaminated by 0.05% per acetic acid (PAA) spray; at 45oC for 20 s. Seals and caps were sterilized at 121oC/15 min. Three batches of acidified sugar cane juice were carried out. The qualities of the raw material (pH 5.1 and 22.3 oBrix), of the rinse water of the processing and filling line (after sanitation with 0.1% PAA at 50oC for 40 min), of the packaging and of the end product, were all microbiologically evaluated. The total aerobic mesophilic and molds and yeasts mean counts in natural fresh sugarcane juice were 1.8x106 and 1.6x105 CFU/mL, respectively. The mesophilic and molds and yeasts mean counts taken, in both rinse water samples of the processing line and the bottles, were lower than 1 CFU/mL. The mesophilic and molds and yeasts mean counts in acidified and pasteurized sugar cane juice were 4.3x102 and lower than 10 CFU/mL, respectively. The findings indicated that the procedures that were evaluated met standards for the acidified sugar cane juice to be produced then stored under refrigeration.T the fact that cereals are rich in dietary fiber into consideration, the interest for cereals as a part of the ”functional food” and their application in healthy nutrition nowdays is increasing in Eu and world. There is evidence that the soluble dietary compound (1-3) (1-4)β-D-glucan has health claim related to cerealderived beta-glucan may significantly reduce risk of diseases and strengthen the immune system. Organic farming, as a way of producing food that respects natural life cycles and minimises the human impact on the environment and operates in accordance with objectives and principles, nowadays it is also attracting more interest for food production in the EU and world. The aim of the research presented here was to investigate the influence of organic versus conventional production of selected cereals (wheat, rye, oat, and barley) on the content value of β-D-glucans, (as well as on their nutritional composition). A mixed-linkage β-glucan assay kit (Megazyme Ireland) based on the hydrolysis with lichenase and β-glucosidase enzymes was applied. Cereal kind-farming method by chemical-technological trait biplot was also applied in order to find out the existance of associations between average β-glucan content and farming type. It was shown that barley is the major source of β-glucan among the investigated cereals followed by oat and rye in comparison with wheat. Comparing the results obtained for β-D-glucan values in organic and conventional cereals, it was noticed a slight increase in organic wheat (9.84%), and slight decrease in oat (2.91%), and a small decrease in rye (18.06%). There was no change in the content of β-Dglucan value for barley which was grown either by organic or conventional farming. However the oposite was found for the nutritional composition of cereals in the investigations on nutritional composiotion of the cereals. In the paper is disscussed about positive or negative associations between average β-glucan value and cereal farming type, what is of particular importance for breeding programs, agronomic practice and food processing industry.P separated from natural sources have been regarded as important immune stimulant candidates due to their broad spectrum of immune stimulatory activities. In a previous study, we isolated and characterized polysaccharides from the leaves of Diospyros kaki (PLE0) prepared by pectinase digestion. PLE0 exhibited immune stimulatory effects through enhanced lymphocyte proliferation, natural killer (NK) cell cytotoxicity against tumor cells, and anti-complementary activity. To obtain safety information for PLE0, its acute oral toxicity and genotoxicity were evaluated in this study. Acute oral toxicity test of PLE0 was performed in Sprague-Dawley rats. In acute oral toxicity test, PLE0 exhibited no mortality, body weight and behavioral changes and adverse effects in male and female rats up to 5,000 mg/kg dose. To evaluate genotoxicity of PLE0, we tested bacterial reverse mutation test, comet assay, and chromosomal aberration test. PLE0 did not significantly increase the number of the bacterial revertant colonies in bacterial reverse mutation test. Moreover, PLE0 related DNA damage and chromosomal aberration was not observed in CHO-k1 cells. These results suggested that the approximate lethal dose of PLE0 is considered to be higher than 5,000 mg/kg, and PLE0 does not act as a mutagenic or genotoxic material at the concentrations evaluated.Methods: The most consumed fish species in the selected region were identified following a questionnaire done for 13 fisheries and seafood restaurants. The selected species were: Sparus aurata, Boops boops, Pagrus pagrus, Sphyraena chrysotaenia, Epinephelus aeneus, Merlangius merlangus, Dentexgibbosus and Mullus barbatus. Three samples of each fish type were analyzed as follows: Lyophilization of fish samples, oil extraction in Soxhlet apparatus, esterification of the extracted oil, centrifugation of the obtained solution and lipid analysis through gas chromatography-mass spectrometry (GC-MS).I recent years the production of organic food in the world is undergoing a true expansion, with which the habits of the consumers are also changing and in growing numbers are deciding to consume products of organic origin, including meat. The goal of the work is a comparison of certain quality characteristics of lamb’s meat from lambs bred in a certified organic production, according to regulations equivalent with EU/Reg.834/2007 and of lamb’s meat from lambs bred in a conventional production system in the traditional way. From the performed analysis a more favourable chemical composition and average content of fatty acids is determined in lamb’s meat obtained from the organic production system compared to the meat from the conventional system. The results from the research will affirm and encourage the development of organic production of lamb’s meat with higher nutritional quality.W certain exceptions, goat milk is similar to sheep and cow milk, as well as with human population milk by its composition, traits and biological and energetic value. In relation to some parameters goat milk has more advantages than these other types of milk. Due to its specific composition, milk is used in the production of variety of cheese and different types of milk drinks. Western Europe produces reputable types of goat cheese which reach significantly higher price than cow cheese. Mediterranean and Middle Eastern countries have a tradition for regular usage of drinks made of fresh or processed goat milk in people’s diet. Due to the goat’s ability to transform carotene into vitamin A, the fat in goat milk has exceptionally white color. Goat milk fat drops are smaller and more evenly distributed, allowing faster and easier digestion in human organisms. This is the reason why people with digestive problems prefer consuming goat milk. Fat in goat milk contains large amount of caprylic and caproic acids. According to literature data a few of these acids are in free form, contributing specific odour and flavor of goat milk. Many researches characterize goat milk as a drink for convalescent but also as basic detoxifier of human organism. This work attempts to present nutritive value of goat milk and the advantage in relation to other types of milk (cow, sheep and human milk).T demand towards the consumption of minimally processed fresh fruits and vegetables is increasing contemporarily, owing to the fast-paced lifestyle of our age and the change of direction in eating habits. Accordingly, the studies devoted to the maintenance of shelf stability of such products have accelerated. The studies show that the modified atmosphere packaging (MAP) alone is not sufficient to preserve the freshness of fresh-cut fruits and vegetables and the edible films and coatings which are used as supportive agents to MAP might lead to some undesirable sensory effects on the products. Fabrication of ultra thin but still functional, edible coatings might be an alternative for the minimization of such effects. The Layer-by-Layer (LbL) Deposition, a ‘bottom-up’ nanofabrication technique which is based on the successive adsorption of two or more materials onto each other due to the physicochemical interactions in between is a promising method to fabricate such coatings as it provides high control on the thickness and morphology. In this study, multilayer formation from chitosan and sodium caseinate will be investigated. The effects of pH of the dipping solutions, adsorption time and number of layers on the multilayer growth and the structure of the coatings will be investigated. Multilayer build-up will be monitored by UV-Vis spectroscopy and Surface Plasmon Spectroscopy (SPR) which allows for in situ observation of the multilayer formation. The thickness of the layers will be determined by SPR and Atomic Force Microscopy (AFM). AFM will also give information about the surface morphology of the coatings.R the temperature of frozen tuna meat from below -40°C to approximately -10°C before thawing has been reported to remove NAD+ and prevent thaw-rigor. If NAD+ is degraded by NADase, glycolysis will cease and a high pH and low met-myoglobin content will be maintained after thawing. Therefore, we attempted to identify conditions that would suppress met-myoglobin formation during cold storage of frozen skipjack tuna meat. B1 skipjack tuna stored at -40°C was used. Temperature shift treatment (TST) was performed by raising the temperature of the meat to -5°C, -6°C, -7°C and -8°C for 24 hours. After TST, samples were stored at 5°C for 2 days with or without vacuum packaging. Regardless of the packaging, 24 hours of TST reduced the NAD+ content. A remarkable decrease in pH from 6.3 to 6.0 was observed in meat stored at -5°C TST; however, the pH of all other TST samples remained stable during storage at 5°C. In contrast, non-treatment groups with and without vacuum packaging showed a major decrease in pH to as low as 5.6. The met-myoglobin content increased remarkably during cold storage in all non-treatment groups with and without vacuum packaging and in all TST groups without vacuum packaging. However, all TST groups including the -5°C with vacuum packaging group maintained the met-myoglobin content at the level measured after 0 hour storage at 5° C. Thus, TST and vacuum packaging are both required to delay met-myoglobin formation. The NADase activity of skipjack tuna meat was also measured.U distributed light brown color is desired for non-sulphited sun dried apricots (NSDAs). The color of NSDAs is affected by the moisture content and the storage temperature. Therefore, this study was undertaken to determine the effects of various moisture contents (13.7, 23.5, 27%) (MC) and storage temperatures (4, 10, 20, 30°C) on the color of NSDAs during 12 months of storage. To mimic the consumer packaging, half of the samples were rehydrated from 13.7% to 23.5 and 27% MC and placed in polystyrene containers wrapped with PVC film. To mimic the commercial storage conditions, rest of the samples at 13.7% MC were placed in storage in bulk. The changes in color of NSDAs during storage were determined by measuring absorbance values at 420 nm and reflectance color values. Initial browning values (BV) (3.5 to 5.0 A420 g/dw) and L, a, b values (25.1, 5.8, 8.9, respectively) did not change considerably during storage at 4° and 10°C. Initial browning index (BI) (55–62) decreased by 26–34% after storage at 30°C. An increase in storage temperature from 20 to 30°C accelerated brown color formation by 3.5 times. Furthermore, an increase in MC from 13.7 to 23.5% accelerated brown color formation by 1.1–1.5 times. Due to strong negative correlations between BI and BV (r=0.857–0.926), BI might be an alternative to lengthy spectrophotometric measurement of brown pigments. Results from this study clearly showed that low storage temperatures (<10°C) and MC (<23%) are required to prevent formation of brown color in NSDAs.Soil acidity is a major yield-limiting factor for crop production. Liming is the most important and most effective practice to ameliorate soil acidity constraints for optimal crop production. However, liming can be accompanied with dramatic reduction of some nutrients intake in plants. Among widely cultivated food crops, maize plays a particularly important role. Aim of this study was testing impacts of liming with fertdolomite (24.0 % CaO + 16.0 % MgO + 3.0 % N + 2.5 % P2O5 + 3.0 % K2O) in five rates from 5 to 40 t ha–1 (spring 2008) on micronutrient status in maize grain (the growing seasons 2010 and 2011). In general, concentrations of manganese (Mn), iron (Fe), zinc (Zn)and copper (Cu) in maize grain were very low and inadequate with aspect of animal and human feed needs. The growing season characteristics (mainly precipitation and temperature regimes) were more effective factor impact on grain micronutrient status in maize compared to liming (comparison averages values in mg kg–1 in dry matter of all tretaments in 2010 and 2011: 20.7 and 24.7 Fe, 20.6 and 25.8 Zn, 4.77 and 7.07 Mn, 1.67 and 1.46 Cu, respcetively). As affected by liming slightly decreased concentrations of Mn and Zn, while grain-Fe and -Cu were independent on liming. By comparison the control (unlimed treatment) and averages limed treatment (2-year averages: 2010 and 2011) there found values as follows (mg kg–1 in dry matter): 23.7 and 23.1 Fe, 23.3 and 22.5 Zn, 6.44 and 5.81 Mn, 1.55 and 1.56 Cu, respectively.T interest aroused by consumers stimulated the development of an experimental project to produce a seasoning named “Agresto” in the specific area of Amiata Mountain with the aim of affirming the territorial specificities of a natural product derived from unripe grapes obtained from local grapevine varieties to enhance their use in gastronomy. With this project, we intended to adopt several strategies in the vineyard and in processing in order to obtain a final product from grapes cultivated by “organic farming” having sensory characteristics suitable for various types of dish combinations. For this purpose were chosen local varieties grown in the ampelographic collection located in Cinigiano (Gr) and the hybrid ‘Isabella’ from which were obtained three experimental Agresto. In several years (from 2010 to 2014) was also produced from ‘Sangiovese’ the “Traditional Agresto” according to an ancient recipe. The variety ‘Isabella’ is grown sporadically without pesticide treatments while the other varieties were cultivated according to the organic farming method. Moreover the Agresto is produced without alcoholic fermentation, so as the final product is free from methyl alcohol. The goal is to get to the production of a unique and genuine seasoning through natural methods and without preservatives. The main composition of different Agresto produced was determined as well as antioxidant activity and microbial analysis. Interesting sensory profiles were obtained using a parametric sheet specially adapted to this type of product. The traditional Agresto currently marketed in very modest amounts remains a niche product particularly required by Tuscany kitchen. It is believed that its use will expand providing more opportunities for the productive sector.C pollution is of special concern in the Mediterranean region due to its particular ecological and socio-economic characteristics. Contamination of marine organisms from human activities can come from different sources either from activities that are directly connected to the marine environment or from waste spread to the marine waters via land-based activities. Contaminants such as heavy metals, PAHs, PCBs, dioxins which are known to bio-accumulate in marine organisms were widely studied and their maximum levels in foodstuffs are set by the European Union Commission (Regulation N° 1881/2006). More volatile compounds such as benzene, toluene, xylene, styrene, short chain chlorinated paraffins (C9-13) important to the production of polymers and numerous consumer products such as solvents, paints, pharmaceutical, etc are less studied. Phthalate esters are also widely used in various industries as alkylated resins, polymeric polyesters, plasticizers, etc and they were detected in sea water by various authors. In this context our research reports the results on the determination of volatile organic pollutants in several species of Mediterranean fish, crustaceous and mollusc. A HS-SPME-GC-MS method was developed for the extraction, identification and quantification of the volatiles in the studied marine species. The following pollutants were quantified: Chloroform, dichloromethane, benzene and its derivatives such as toluene, ethyl-benzene, trimethyl-benzene, ethyl-toluene, styrene, xylenes and phenol, hydrocarbons, chlorinated and phthalates. Benzene and its derivatives and phthalates were present in all the analyzed species with the highest amount in crustaceous and mollusk respectively whereas chlorinated paraffins prevailed in fish species.The harmful elements monitoring, particularly Cd, have become important for environmental protection. Very low concentrations of Cd in dry matter of plant tissues were found under non-polluted environment of the eastern Croatia. With that regard, differences were found in maize leaves as affected by soil type (averages of ten hybrids) from 0.09 and 0.14 ppm Cd, for acid and neutral soil (pH in KCl 4.10 and 6.81), as well as among genotypes from 0.07 to 0.18 ppm Cd. Grain-Cd in maize were considerably lower and below detection limit (<0.02 ppm Cd). Liming is usual recommended management practice for acid soils fertility improvement. Beside effects on crop yields, liming is useful management practice for decreasing Cd transfer into food chain. In the liming experiment on acid soil, we found in maize leaves (2-year averages) 0.17 and 0.09 mg Cd/kg, for control and averages of four liming treatments, respectively. Differences were found also between two growing seasons (0.10 and 0.07 ppm Cd, respectively). Also, considerably impact of liming on decreases of Cd in alfalfa hay was found (0.113 and 0.047 ppm Cd, for 0 and 20 t/ha of lime).T simplest lipids constructed from fatty acids are the triacylglycerols, also referred to as triglycerides, fats, or neutral fats. Most natural fats, such as those in vegetable oils, dairy products, and animal fat, are complex mixtures of simple and mixed triacylglycerols. Cholesterol is doubtless the most publicized lipid, notorious because of the strong correlation between high levels of cholesterol in the blood and the incidence of human cardiovascular diseases. Various combinations of lipid and protein produce particles of different densities, ranging from chylomicrons and very lowdensity lipoproteins (VLDL) to very-highdensity lipoproteins (VHDL).Nowadays, various methods are used as a support to many companies in the study of the behavior of consumer when they are purchasing food products. The success of the operations of these companies greatly depends on having a lot of information about the consumers that purchase the products and on detecting of the buying patterns of top customers and predicting their behavior. The subject of research of this paper is the consumer behavior when purchasing food products, its modeling and a particular emphasis is put on the inclusion of the nutrition determinant in the decision making in the modeling. The general objective is to develop a business model of consumer behavior, and the specific goal is to develop a nutritional business model of consumer behavior. This paper presents an original concept of modeling in order to create business model of consumer behavior when purchasing food products. The model was built using modern technologies such as GIS and methods of data mining. In the second part of the research, a partial validation of the model is made with data collected from a survey conducted on students. The analysis included statistical methods. Conclusion: Nutritional patterns of consumer behavior will enable obtaining of information on the impact and role of the nutrition determinant on consumer behavior and the need to improve and produce healthy food. The benefits could be threefold: to benefit the companies through greater profits, to benefit the citizens through consumption of healthy and safe food products and in the end, to benefit the country. Key words: business model, nutritional business model of consumer behavior, modeling, GIS, data mining, nutrition.E of various sulfur dioxide (SO2) concentrations (451, 832, 1594 and 2112 mg/kg SO2) on polyphenols, polyphenol oxidase (PPO) activity and browning values of dried apricots were investigated. Moreover, the correlations between browning with polyphenols and PPO activity were also determined. The apricots were sulfured by SO2 gas from liquefied SO2 tank in the same sulfur house and the sulfured apricots were then sun-dried. Dried apricots containing no SO2 were evaluated as a control group. Eight polyphenols (chlorogenic acid, ferulic acid, caffeic acid, gallic acid, pyrocatechol, catechin, epicatechin and rutin) were identified in the samples. The major polyphenol was determined as chlorogenic acid (84%). Strong correlation (r=0.917) was found between SO2 concentrations and polyphenols contents of the samples. High PPO activity was determined in control group while PPO activity was not determined in the samples containing SO2 even at the lowest level (451 mg SO2/kg). However, as SO2 concentration increased, browning value of the samples decreased (r=0.977). Although there was no PPO activity in none of the dried sulfured-apricots, their browning values were different. Thus, SO2 prevented the browning due to not only inactivation effect on PPO but also their antioxidant activity. Taking into consideration of the safety of sulfites, we suggest 451 mg SO2 per kg apricot for the inactivation of PPO and the preservation of desirable golden-color in dried apricots.T study was performed to evaluate the effects of sporulation conditions including sporulation media, temperature and time on the sporulation ability and heat resistance of spores of six different species belonging to the genus Bacillus including B. subtilis, B. coagulans, B. licheniformis, B. pumilus, B. brevis and B. cereus. From the comparison of sporulation rates of each species on/in the reported sporulation media, an insignificant difference in numbers of Bacillus spores produced except for B. coagulans spores was found between NA sporulation medium (nutrient agar supplemented with 1 ppm Mn2+) and solidified SG medium (a glucose nutrient broth-based moderately rich medium), the most frequently used sporulation media whereas a significant decrease in numbers of spores produced was observed in liquid media of the same composition as used for two sporulation media when compared to the corresponding solid media. The sporulation temperature (30-50°C) and time (1-7 days) had a significant impact on the sporulation ability and heat resistance of spores of each species. The greatest yield of spores was achieved with the sporulation conditions at 3744°C for 2 days and heat resistance of spores increased significantly as sporulation temperature increased. Meanwhile, heat-shock conditions with different combinations of temperature (60-80°C) and time (10-30 min) was examined for the enumeration of spores of each species and their efficiency was compared by determining the number of viable spores after each heat-shock treatment. Consequently, an accurate and rapid enumeration of the viable spores could be conducted under a heat-shock condition of 60-65°C for 10 min.

Phosphorus, calcium and magnesium status in maize genotypes grown on acid soil

The response of five maize inbred lines and their three commercial hybrids to acid soil with low nutrients availability were studied in a field trial over a three year period (2003 to 2005) in the east Croatia. Grain yield and P, Ca and Mg concentration in leaves were analysed. Highly significant effects of the both, year and genotype for all traits were determined. Grain yield of maize genotypes ranged from 5.11 t ha-1 in dry year to 7.39 t ha-1 in more favourable year. Regardless of low soil P content, an adequate P status (3.17 g kg-1) in maize were found, while lower Ca (5.62 g kg-1) and Mg (2.36 g kg-1) mean concentrations in leaves are consequences of their low level in soil. However, considerable differences in P, and especially Ca and Mg status were found among parental lines, what was reflected on their progeny. The results indicated that origin of inbred line may have an important role for nutrient content inheritance.

Phosphorus fertilization impacts on soil nutritional status

Ameliorative fertilization with P fertilizer resulted by positive (increases of mobile fraction of P up to more than 4-fold, and AL-soluble P up to 6-fold) and negative (hydrolitical acidity increases up to 2.05 cmol kg−1) effects in soil. It is important that mobile fraction of harmful elements, especially Cd, were in all applied treatment in level of the control. For alleviation of negative effects we recommend combination ameliorative fertilization with liming.