Lipid Technology and Engineering, College of Food Science and Engineering, Henan University of Technology.
J Oleo Sci. 2021 Feb 1;70(2):155-164. doi: 10.5650/jos.ess20157. Epub 2021 Jan 15.
Functional compositions, physicochemical properties and antioxidant activities of Amaranthus caudatus L. oils (ACO) obtained by different solvents were comparatively investigated. All the resulted ACO were enrich in 75% unsaturated fatty acid and in squalene of about 4 g/100 g. Different solvents showed varying in oil extraction, where acetone results a highest yield of 6.80 g/100 g. ACO extracted by ethanol showed a highest tocopherol (1351.26 mg/kg), polyphenols (211.28 mg/kg) and squalene (42519.13 mg/kg). However, phytosterols in ACO extracted by hexane (27571.20 mg/kg) was higher than that by acetone (19789.91 mg/kg), ethanol (22015.73 mg/kg) and petroleum ether (24763.30 mg/kg). Furthermore, antioxidant activity of ACO was also measured by DPPH, ABTS and FRAP assay. According to principal component and correlation analysis, squalene was correlated with the DPPH scavenging ability, but phytosterols and tocopherols was correlated with the ABTS and ferric reducing ability of the oils, respectively. This study provides a promising excellent source of functional oil for food industries.
不同溶剂提取的苋菜籽油的功能成分、理化性质和抗氧化活性的比较研究。所有得到的 ACO 都富含 75%的不饱和脂肪酸和约 4 g/100 g 的角鲨烯。不同溶剂对油的提取效果不同，其中丙酮的产率最高，为 6.80 g/100 g。乙醇提取的 ACO 表现出最高的生育酚（1351.26 mg/kg）、多酚（211.28 mg/kg）和角鲨烯（42519.13 mg/kg）。然而，正烷烃提取的 ACO 中的植物甾醇（27571.20 mg/kg）高于丙酮（19789.91 mg/kg）、乙醇（22015.73 mg/kg）和石油醚（24763.30 mg/kg）提取的 ACO。此外，还通过 DPPH、ABTS 和 FRAP 测定法测定了 ACO 的抗氧化活性。根据主成分和相关分析，角鲨烯与 DPPH 清除能力相关，而植物甾醇和生育酚分别与 ABTS 和油的铁还原能力相关。本研究为食品工业提供了一种有前途的优质功能性油来源。
