Jeong-Gyun Kim

Changes of Physicochemical Components and Antioxidant Activity of Garlic During its Processing

Garlics were aged at 60, 70, 80, and 90℃ for 1, 3 and 6 days. Samples were analyzed for physico-chemical components and antioxidant activities, such as DPPH scavenging activity and reducing power of hot water and ethanol extracts. The Hunter L, a and b values were significantly lower in sample aged at higher temperature and for longer time. In initiation of aging, the share force was the lowest in sample aged at 90℃ (85.70±1.44 ㎏/㎠) and it increased for 6 days to 411.30±13.90 ㎏/㎠ in aging. The pH of garlic was acidified at increasing aged temperature and periods. In sample aged for 6 days at 60℃ and 90℃, pH was 6.12 and 3.90, respectively. Contents of total phenolics and flavonoids also increased in sample aged at higher temperature and for longer time. Their contents increased about 3.5 and 9.1 times higher in sample aged for 6 days at 90℃ than sample aged for 6 days at 60℃, respectively. Total pyruvate contents were fluctuated by aging temperature and periods. DPPH scavenging activity was increased in sample aged at higher temperature and longer time. The highest activity of DPPH scavenging showed 87.48±0.20% in sample aged for 6 days at 90℃. Similar results were observed in reducing power activity. It was estimated that such increases in anti-oxidant activities in aged garlics may come from actions of phenolics, flavonoids and browning compounds in them.

Improvement on Fish Odor of Extracts from Salmon Frame Soaked in Soybean Milk

For the use of extracts from salmon frame as a basic material of Gomtang-like products, various methods (soaking into soybean milk, adding anchovy, and adding spices) for masking fish odor into extracts from salmon frame were examined and the food component characteristics were also compared with commercial Gomtang. According to the results of volatile basic nitrogen, transmission at 660 ㎚ and sensory evaluation of extracts, soaking treatment, which is the soaking of salmon frame into soybean milk, was the most efficient method among the various methods for masking fish odor into extracts from salmon frame. There was no difference in the proximate composition between extracts from salmon frame soaked (FS) and unsoaked (C) into soybean milk. The FS was not detected in heavy metals, such as chromium, lead and cadmium. The taste value of FS (16.26) was higher than that of C and the major amino acids were glutamic acid and aspartic acid. Total amino acid content of FS (3.08 g/100 mL) was also higher than those of C (2.95 g/100 mL) and commercial Gomtang (1.70 g/100 mL), and the major amino acids were glycine, proline, glutamic acid and arginine. The calcium and phosphorus contents of FS/500 mL accounted for 21.7% and 18.5%, respectively, of the recommended daily allowance of mineral for adult.

Processing and Characteristics of Canned Kwamaegi - 2. Processing and Characteristics of Canned Boiled Kwamaegi

This study was conducted to obtain basic data which can be applied to process of canned boiled Kwamaegi. Commercial Kwamaegi was cut into cm lengths, filled 90 g into can (301-3) and added with 60 g water and then precooked for 10 min. at . And water layer was drained. The precooked Kwamaegi was packed into the can, and added with 60 g of mixed salt solution, which is mixed with salt 0.5% and bamboo salt 0.7%. The cans were seamed using a vacuum seamer, and then sterilized for various Fo values (Fo 8~12 min.) in a steam system retort at . pH, VBN, amino-N, total amino acid, free amino acid, color value (L, a, b), texture profile, TBA value, mineral, sensory evaluation and viable bacterial count of the canned boiled Kwamaegi produced with various sterilization condition(Fo 8~12 min.) were measured. There was no remarkable difference between sterilization conditions and sensual characteristics. The results showed that the product sterilized at Fo 8 min. was the most desirable because this condition is the most economical and tasty.

Processing and Characteristics of Canned Kwamaegi 3. Processing and Characteristics of Canned Kwamaegi using tomato paste sauce

상온에서 저장이 용이하고 기호도가 우수한 토마토페이스트소스첨가 과메기통조림을 제조하기 위하여 절단한 시판과메기(

Processing and Characteristics of Canned Seasoned Sea Mussel

3cm{\times}2.5cm

Changes of Physicochemical Properties of Salted-Fermented Anchovy Meat Engraulis japonica with Different Salt Content During Fermentation at 15℃

크기) 90 g을 301-3호관에 넣고

Processing and Characteristics of Canned Salt-fermented Anchovy Engraulis japonica Fillet using Red Pepper Paste with Vinegar

100^{\circ}C

Characteristics of the Dependent Variables due to the Conditions of the Independent Variables of Coating Process During the Producing of Snack Using Rice Collet Added with Dried Shrimp

의 레토르트내에서 10분간 예비 탈기하였다. 상층부의 물을 부어서 버리고 토마토페이스트 소스(토마토페이스트 42%, 식염 2%, 구아검 1%, 물 52%, 물엿 2%, 맛술 1%) 60 g을 넣은 후 이중밀봉기로 탈기, 밀봉하여

Processing and Property of Olive Flounder Paralichthys olivaceus Terrine

121^{\circ}C

Processing and Characteristics of Canned Salt-fermented Anchovy Engraulis japonica Fillet using Tomato Paste Sauce

에서 Fo 값이 8-12분이 되도록 살균하여 토마토페이스트소스첨가 과메기통조림을 제조하였으며, 각 살균 조건별로 제조한 시료에 대하여 내용물의 이화학적 성질의 변화 및 관능적 변화에 대하여 살펴보았다. Fo 값이 8-12분이 되도록 살균한 토마토페이스트소스첨가 과메기통조림의 경우 모든 살균조건에서 생균수가 검출되지 않았으며, Fo 값이 증가함에 따라 일반성분 중 수분함량은 감소하였고 조단백질 및 조지방함량은 증가하였다. 살균조건의 차이에 따른 pH의 변화는 거의 없었으며, VBN, 아미노질소량 및 조직감은 Fo 값이 증가할수록 그 값이 증가하였으나 TBA 값은 오히려 감소하였다. 색조의 경우 명도는 감소하였고 적색도 및 황색도는 거의 차이가 없었으며 색차(