柠檬醛
化学
丁基羟基甲苯
抗氧化剂
亚油酸
食品科学
精油
抗坏血酸
羟基自由基
没食子酸丙酯
柠檬烯
脂质过氧化
有机化学
脂肪酸
作者
Ying Wang,Zi‐Tao Jiang,Rong Li
标识
DOI:10.1080/0972060x.2012.10644029
摘要
Abstract The antioxidant activity and free radical scavenging potential of Litsea cubeba essential oil (LCEO) were evaluated from different points of view and compared with citral, a major component in LCEO, ascorbic acid (Vc) and synthetic antioxidants including butylated hydroxytoluene (BHT) and propyl gallate (PG). The results revealed that LCEO has notable antioxidant activity. The order of hydroxyl radical scavenging activity was LCEO >BHT > citral > PG >Vc. Their half maximal inhibitory concentration (IC50) values of hydroxyl radical scavenging activity were 0.19, 0.28, 0.50, 0.79 and 1.07 mg/mL, respectively, and IC50 values of scavenging superoxide were 0.45, 0.64, 0.67, 1.08 and 0.51 mg/mL, respectively. Furthermore, the peroxidation of linoleic acid was significantly suppressed by the addition of LCEO. The order of activity was BHT >Vc >LCEO >citral >PG. Chemical composition of LCEO was identified by GC and GC-MS, and major components in the oil were limonene (26.25 %), followed by α-citral (25.97 %), β-citral (21.90 %), and β-pinene (6.20 %). Citral plays an important role in antioxidant activity and free radical scavenging.
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