Optical properties of oil extracts of Bulgarian herbs

被引：0

作者：

Nikolova, Kr. ^{[1
]}

Eftimov, T. ^{[2
]}

Antova, G. ^{[3
]}

Petkova, Zh. ^{[3
]}

机构：

[1] Univ Food Technol, BG-4002 Plovdiv, Bulgaria

[2] Paisii Hilendarski Univ Plovdiv, Fac Phys, 24 Tsar Asen Str, BG-4000 Plovdiv, Bulgaria

[3] Paisii Hilendarski Univ Plovdiv, Fac Chem, BG-4000 Plovdiv, Bulgaria

来源：

BULGARIAN CHEMICAL COMMUNICATIONS | 2015年 / 47卷

关键词：

UV-spectroscopy; fluorescence; sunflower oil with herbs; oxidation product; tocopherols;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have studied oil extracts form oregano, thyme and pine cone in sunflower oil in 1:5 ratio (herb extract/sunflower oil). The fluorescence spectra have been obtained by using Light emitting diods (LEDs) working at wavelengths of lambda = 370 nm, lambda = 395 nm, lambda = 425 nm and lambda = 450 nm have been obtained. The oxidation processes have been studied using UV spectroscopy. The content of chlorophyll and beta-carotene has been studied with the objective of finding correlation between them and the intensity of the fluorescence peak. It has been shown that the most informative spectra are those obtained for excitation at lambda = 425 nm. They contain three fluorescence maxima related to the oxidation processes (lambda = 500 nm) and chlorophyll (lambda = 675 nm). Linear dependencies between the full content of tocopherols (Y) and absorption at 270 nm (A(270)) and 232 nm (A(232)) have been obtained Y = -717.15A(232) + 1830, R-2 = 0.924, Y = -1599A(270) + 1549, R-2 = 0.947.

引用

页码：477 / 480

页数：4

共 50 条

[1] OPTICAL PROPERTIES OF OIL EXTRACTS AND RESIDUES OF MEDICINAL AND AROMATIC HERBS
Nechiporenko, A. P.
Melnikova, M., I
Nechiporenko, U. Yu
Plotnikova, L., V
Uspenskaya, M., V
[J]. IZVESTIYA VUZOV-PRIKLADNAYA KHIMIYA I BIOTEKHNOLOGIYA, 2018, 8 (04): : 6 - 12
[2] Comparative characteristics of sunflower oil with supplement of traditional Bulgarian herbs
Buhalova, D.
Nikolova, Kr.
Antova, G.
Tomova, Il.
Aladjadjiyan, A.
Aleksieva, Y.
Petkova, Zh.
[J]. BULGARIAN CHEMICAL COMMUNICATIONS, 2014, 46 : 34 - 38
[3] Correlation between the in vitro antioxidant activity and polyphenol content of aqueous extracts from Bulgarian herbs
Kiselova, Yoana
Ivanova, Diana
Chervenkov, Trifon
Gerova, Daniela
Galunska, Bistra
Yankova, Tatyana
[J]. PHYTOTHERAPY RESEARCH, 2006, 20 (11) : 961 - 965
[4] Determination of the Optical Properties of Bulgarian Honey
Nikolova, Krastena
Tsankova, Diana
Evtimov, Tinko
[J]. 9TH INTERNATIONAL PHYSICS CONFERENCE OF THE BALKAN PHYSICAL UNION (BPU-9), 2016, 1722
[5] EFFECT OF HERBS EXTRACTS ON SOME RHEOLOGICAL PROPERTIES OF WHEAT STARCH
Przetaczek-Roznowska, Izabela
Pycia, Karolina
Roznowski, Jacek
Fortuna, Teresa
[J]. PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON POLYSACCHARIDES-GLYCOSCIENCE, 2013, : 192 - 195
[6] Antioxidative properties of water extracts obtained from herbs of the species Lamiaceae
Triantaphyllou, K
Blekas, G
Boskou, D
[J]. INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION, 2001, 52 (04) : 313 - 317
[7] Antioxidant properties of volatile extracts isolated from various herbs, spices, and teas
Lee, Kwang-Geun
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 232 : 236 - 236
[8] Antioxidative activity of water extracts of herbs
Terasawa, N
Yamazaki, N
Fukui, Y
[J]. JOURNAL OF THE JAPANESE SOCIETY FOR FOOD SCIENCE AND TECHNOLOGY-NIPPON SHOKUHIN KAGAKU KOGAKU KAISHI, 2001, 48 (02): : 99 - 104
[9] Herbs, thyme essential oil and condensed tannin extracts as dietary supplements for broilers, and their effects on performance, digestibility, volatile fatty acids and organoleptic properties
Cross, D. E.
McDevitt, R. M.
Acamovic, T.
[J]. BRITISH POULTRY SCIENCE, 2011, 52 (02) : 227 - 237
[10] Characterization of Two Bulgarian Herbs for Use as Biosorbents for Copper(II)
Ivanova, Lidia Petkova
Detcheva, Albena Kirilova
Vassileva, Paunka Stoyanova
[J]. ANALYTICAL LETTERS, 2019, 52 (17) : 2650 - 2662

← 1 2 3 4 5 →