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Featured researches published by Milan Bastic.


Phytochemistry | 1984

Composition of the sterol fraction in horse chestnut

Slobodan K. Stanković; Milan Bastic; Jovan Jovanovic

Abstract The Δ7-and Δ5-sterol fractions were isolated from the unsaponifiable matter of ripe, air dried, chestnut seed. The Δ7-sterol fraction amounted to 18.4% and the Δ5-sterol fraction amounted to 8.2% of the unsaponifiable matter. In the Δ7-sterol fraction three components were identified as Δ7-campesterol, α-spinasterol and Δ7-stigmastenol. One component was probably Δ5,7-stigmastadienol and five components remained unidentified. Δ7-stigmastenol and α- spinasterol were the major components and amounted to 74.8% of the fraction. In the Δ5-sterol fraction at least ten components were found. Five of them were identified as cholesterol, campesterol, stigmasterol, sitosterol and Δ4-stigmasten-3-one. Stigmasterol and sitosterol amounted to 73.6% of the fraction.


Phytochemistry | 1985

Composition of the triterpene alcohol fraction of horse chestnut seed

S.K. Stanković; Milan Bastic; J.A. Jovanoć

Abstract The triterpene alcohol fraction was isolated from the seed oil of horse chestnut; it amounted to 42.2% of the unsaponifiable matter, i.e. 0.93% of the oil. The components were identified as taraxerol, β-amyrin, butyrospermol, parkeol, 5α-tirucalla-8,23-dien-3β-ol, α-amyrin and 24-methylenecycloartenol. Butyrospermol and 5α-tirucalla-8,23- dien-3β-ol were the major components and amounted to 60% of the fraction. The latter has not been identified in any vegetable oils yet.


Fuel | 1993

Pyrolysis of oil shale in a microretorting unit

Dejan Skala; Milan Bastic; Jovan Jovanovic; Iradj Rahimian

With the aim of investigating the dependence of shale oil composition on pyrolysis conditions (temperature and time), a laboratory microretorting unit was constructed which enabled experiments to be conducted under isothermal conditions with ~ 20 g of oil shale, and allowed the collection of four to six fractions of shale oil. The details of the microretorting unit are presented, as well as the results of preliminary investigations. The composition of shale oil and gas produced by pyrolysing Aleksinac oil shale under isothermal conditions (420–520 °C) was determined using column and gas chromatography, 13C n.m.r. spectroscopy and elemental analysis. The results showed that a pyrolysis temperature between 450 and 480 °C gave the highest quantity of aliphatics and the lowest quantity of aromatics in the product.


Analytica Chimica Acta | 1995

Sensitivity of modified bulk acoustic waves for the detection of phenols in the vapour phase

Ljubinka V. Rajaković; Milan Bastic; Yakov I. Korenman; Svetlana A. Tunikova; Nataša V. Bel'skih

The potential ability of a bulk acoustic wave device oscillating in a thickness shear mode (BAWTSM) chemically modified with various compounds (4-amino-antipyrine, poly(vinyl pyrrolidone), Carbowax-20M, Triton X-100) for selective binding and assay of phenol compounds in the vapour phase has been investigated. The sensor was tested in a continuous flow system. The highest sensitivity was achieved with 4-amino-antipyrine as coating. It was estimated that the maximal frequency response was about 100 Hz for 20 μg of coating and for a phenol concentration of 0.05 mg dm−3 in air. The frequency response of the sensor to various phenol derivatives was correlated with adsorption and absorption during a dissolution process onto the surface of the coating sensor.


Phytochemistry | 1985

4α-methylergosta-8,24(28)-dien-3β-ol, a minor sterol in the seed of horse chestnut

Slobodan K. Stanković; Milan Bastic; Jovan Jovanovic

Abstract From ripe horse chestnut seed the 4α-methyl sterol fraction was isolated representing 4.5% of the unsaponifiable matter, i.e. 3 mg% of the seed. This fraction was investigated by capillary GC and combined GC-MS. It contains at least 12 components, of which 5 were identified as: obtusifoliol 4α-methylergosta-8,24(28)-dien-3β-ol, gramisterol, cycloeucalenol and citrostadienol. The distribution of these five 4α-methyl sterols in the seed was also determined and they represent about 90% of the investigated fraction. 4α-Methylergosta-8,24(28)-dien-3β-ol up to now been found in higher plants only in traces, while in this fraction it was found in the amount of about 5%.


Turkish Journal of Chemistry | 1996

The Mechanism of the Photoprotolytic Reactions of Some Oxyazomethine Compounds

Lubov Efimovna Zelt'ser; Milan Bastic; Ljubinka V. Rajaković


Archive | 1993

POSTUPAK PROIZVODNJE VISENAMENSKOG ADITIVA ZA PUTNE BITUMENE IZ OSTATKA DESTILACIJE MASNIH KISELINA

Jovan Jovanovic; Dusanka Milatovic-Jovanovic; Milan Bastic


Archive | 1990

PROCESS FOR PRODUCING MULTI PURPOSE ADDITIVE FOR ROAD BITUMENS FROM REMAININGS OF FAT ACIDS DISTILLATION

Milan Bastic; Bastic Milan; Jovan Jovanovic; Jovanovic Jovan; Dusaanka Milatovic Jovanovic; Milatovic Jovanovic Dusaanka


Archive | 1983

PROCESS FOR OBTAINING VSELINES WHITE OILS ON THE BASE OF ALKYLCYCLOHEXANE OILS

Mile Orlovic; Orlovic Mile; Milan Bastic; Bastic Milan; Jovan Jovanovic; Jovanovic Jovan


Archive | 1983

PROCESS FOR OBTAINING ALKYLCYCLOHEXANE OILS

Jovanovic Jovan; Jovan Jovanovic; Milan Bastic; Bastic Milan; Mile Orlovic; Orlovic Mile

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Dejan Skala

University of Belgrade

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Iradj Rahimian

American Petroleum Institute

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