INFLUENCE OF SUPERCRITICAL CARBON DIOXIDE AND METHANOLIC EXTRACTS OF ROSEMARY ON OXIDATION AND SENSORY PROPERTIES OF WHEAT GERM OIL

2009 ◽  
Vol 32 (6) ◽  
pp. 709-724 ◽  
Author(s):  
OZLEM YESIL-CELIKTAS ◽  
MUGE ISLETEN ◽  
YONCA KARAGUL-YUCEER ◽  
ERDAL BEDIR ◽  
FAZILET VARDAR-SUKAN
2016 ◽  
Vol 67 (3) ◽  
pp. e144 ◽  
Author(s):  
B. Parczewska-Plesnar ◽  
R. Brzozowski ◽  
H. Gwardiak ◽  
E. Białecka-Florjańczyk ◽  
Z. Bujnowski

2020 ◽  
Vol 13 (2) ◽  
pp. 30-34
Author(s):  
Maha M. Soltan ◽  
Sabry A. Mahfouz ◽  
Eman A. Karam ◽  
Fatima H Motawe

Medicinal plants particularly with higher nutritional values are attracting the attention of both the pharmacological and nutritional affairs. In the present study, we extracted the wheat germ oil with cold press, hexane as well as supercritical carbon dioxide (SC-CO2). All were chemically and biologically (antimicrobial) evaluated to investigate how far can the differential in fatty acid composition affect the biological properties. The most eminent result was recorded by SC-CO2 oil. It was the only among the extracted oils that possessed moderate antibacterial and strong antifungal activities.


1985 ◽  
Vol 49 (8) ◽  
pp. 2367-2372
Author(s):  
Masayuki Taniguchi ◽  
Toshifumi Tsuji ◽  
Masahito Shibata ◽  
Takeshi Kobayashi

1985 ◽  
Vol 49 (8) ◽  
pp. 2367-2372 ◽  
Author(s):  
Masayuki TANIGUCHI ◽  
Toshifumi TSUJI ◽  
Masahito SHIBATA ◽  
Takeshi KOBAYASHI

2015 ◽  
Vol 1120-1121 ◽  
pp. 920-925 ◽  
Author(s):  
Shih Jeng Huang ◽  
Charng Cherng Chyau ◽  
Ching Hsuan Tsai ◽  
Chien Chou Chen ◽  
Jeng Leun Mau ◽  
...  

Curcuma zedoaria (Berg.) Rosc. (Zingiberaceae) has long been used as a folk medicine. Volatile compounds were extracted from the rhizome using supercritical carbon dioxide at 10 MPa and 45oC. Totally, 31 compounds, including 15 terpenes, nine alcohols, six ketones and one other compound, were identified. Aqueous and methanolic extracts were prepared from dried rhizome and the methanolic fractions were prepared using silica gel column chromatography. Aqueous and methanolic extracts were extremely effective in antioxidant activity by the 1,3-diethyl-2-thiobarbituric acid method and EC50 (effective concentration at 50%) values of <10 μg/mL. EC50 values of aqueous methanolic and supercritical carbon dioxide extracts in antioxidant activities by the thiobarbituric acid-reactive substances and conjugated diene methods were 6.58-8.86 and 0.43-0.67 mg/mL, respectively. The methanolic extract was more effective in reducing power, scavenging ability on 1,1-diphenyl-2-picrylhydrazyl radicals and chelating ability on ferrous ions. Based on the results obtained, all extracts showed effective antioxidant properties.


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