scholarly journals Fatty Acid Composition and Antioxidant Activity of Tea (Camellia sinensis L.) Seed Oil Extracted by Optimized Supercritical Carbon Dioxide

2011 ◽  
Vol 12 (11) ◽  
pp. 7708-7719 ◽  
Author(s):  
Yuefei Wang ◽  
Da Sun ◽  
Hao Chen ◽  
Lisheng Qian ◽  
Ping Xu
Keyword(s):  
Carbon Dioxide ◽  
Antioxidant Activity ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Supercritical Carbon Dioxide ◽  
Acid Composition ◽  
Camellia Sinensis ◽  
Seed Oil ◽  
Supercritical Carbon

scholarly journals Supercritical Carbon Dioxide Extraction, Antioxidant Activity, and Fatty Acid Composition of Bran Oil from Rice Varieties Cultivated in Portugal

Separations ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 115
Author(s):  
Tânia I. Pinto ◽  
José A. Coelho ◽  
Bruna I. Pires ◽  
Nuno R. Neng ◽  
José M. Nogueira ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Antioxidant Activity ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Supercritical Carbon Dioxide ◽  
Acid Composition ◽  
Rice Bran ◽  
Supercritical Carbon Dioxide Extraction ◽  
Carbon Dioxide Extraction ◽  
Supercritical Carbon

Bran of different rice cultivars produced in Portugal were used to study supercritical carbon dioxide extraction conditions of rice bran oil (RBO) and evaluate and compare antioxidant activity and fatty acid composition of the different rice bran varieties. The effect of plant loading (10–20 g), CO2 flow rate (0.5–1.5 L/min), pressure (20–60 MPa), and temperature (40–80 °C) was studied. The amount of oil extracted ranged from 11.72%, for Ariete cultivar, to 15.60%, for Sirio cultivar. The main fatty acids components obtained were palmitic (13.37%–16.32%), oleic (44.60%–52.56%), and linoleic (29.90%–38.51%). Excellent parameters of the susceptibility to oxidation of the oils were obtained and compare. RBO of Ariete and Gladio varieties presented superior DPPH and ABTS radical scavenging activities, whereas, Minima, Ellebi, and Sirio varieties had the lowest scavenging activities. Moreover, the oil obtained towards the final stages of extraction presented increased antioxidant activity.

scholarly journals Wheat germ oil extracted by supercritical carbon dioxide with ethanol: Fatty acid composition

2016 ◽  
Vol 67 (3) ◽  
pp. e144 ◽  
Author(s):  
B. Parczewska-Plesnar ◽  
R. Brzozowski ◽  
H. Gwardiak ◽  
E. Białecka-Florjańczyk ◽  
Z. Bujnowski
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Supercritical Carbon Dioxide ◽  
Acid Composition ◽  
Wheat Germ ◽  
Wheat Germ Oil ◽  
Supercritical Carbon

scholarly journals Nutrients, fatty acid composition and antioxidant activity of the flowers and seed oils in wild populations of Paeonia ludlowii

2019 ◽  
pp. 206
Author(s):  
Jie Li, Zai-Hua Wang
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Seed Oils ◽  
Wild Populations ◽  
The Impact

Wild Paeonia ludlowii is considered as a traditional ornamental plant, but its flowers and seed oils are edible with important economic values, and the variation of nutrients, fatty acid composition in wild populations is scarcely known. Flowers and seeds of P. ludlowii were collected from two wild populations for evaluating the nutrients in flowers, composition of fatty acids in seed oils and the antioxidant activity. The flowers contained high composition of proteins, carbohydrates, amino acids, total flavonoids, phenolic compounds and essential minerals. Seed oil yield reached up to 21.95% using supercritical CO2 fluid extraction, and it contained 14 fatty acids (up to 93.35 g/100g seed oil), especially the unsaturated fatty acids (oleic acid, linoleic acid and α-linolenic acid) was up to 88.69% with low ω6/ω3 ratios of 0.58. The antioxidant capacity can be arranged in the order of trolox > flower extracts > seed oil according to the DPPH and ABTS free radical assay. Contents of nutrient in flowers and fatty acids in seed oils were significantly different between two wild populations due to the impact of different growing environments. These results indicate that flowers and seed oils of P. ludlowii are potential food resources in human diets.

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