Wang Lanying, Ahmad Shakil, Wang Xi, Li Hua, Luo Yanping
College of Plant Protection, Hainan University, Haikou, China.
Front Nutr. 2021 May 3;8:667744. doi: 10.3389/fnut.2021.667744. eCollection 2021.
Camellia oil from Hainan (SY) is a unique vegetable oil in Hainan, China, due to the geographical environment and oil extraction only through simple physical treatments. To compare SY with camellia oil from Guangxi (SC), olive oil (GL), and peanut oil (HS), this study analyzed the antioxidant and antibacterial activity of four vegetable oils. Using Gallic acid, BHT as the control, as the model organism, the antioxidant activities of vegetable oils were measured and , and the antibacterial activity was measured with the minimum inhibitory concentration (MIC) method. The major contents of SY, SC, and HS were oleic Acid; the major content of GL was squalene. The highest total flavonoids content of SY was 39.50 ± 0.41 mg RE/g DW; and the highest total phenolic content of SC was 47.05 ± 0.72 mg GAE/g DW. SY exhibited the strongest scavenging activity of hydroxyl radical (HO·) and superoxide anions ( ), the IC value were 2.06 mg/mL, 0.62 mg/mL, respectively; and SC showed the strongest DPPH· and ABTS· scavenging activity and the reducing abilities. SY showed excellent effect on survival rate, protection rate, flavonoids uptake of cells, decreased MDA content and ROS level, inhibited CAT, POD, and GR enzyme activity. The absorption of SC total phenols was the highest by cells. The activity showed GL had a broad-spectrum antibacterial activity. Thus, SY shows potential antioxidant activity and provides an important reference value for people to choose edible vegetable oils.
海南山茶油（SY）是中国海南一种独特的植物油，这归因于其地理环境以及仅通过简单物理处理进行榨油。为了将SY与广西山茶油（SC）、橄榄油（GL）和花生油（HS）进行比较，本研究分析了四种植物油的抗氧化和抗菌活性。以没食子酸、BHT作为对照，以 作为模式生物，测定植物油的抗氧化活性 ，并采用最低抑菌浓度（MIC）法测定抗菌活性。SY、SC和HS的主要成分是油酸；GL的主要成分是角鲨烯。SY的总黄酮含量最高为39.50±0.41 mg RE/g DW；SC的总酚含量最高为47.05±0.72 mg GAE/g DW。SY对羟基自由基（HO·）和超氧阴离子（ ）表现出最强的清除活性，IC值分别为2.06 mg/mL、0.62 mg/mL；SC表现出最强的DPPH·和ABTS·清除活性以及还原能力。SY对 细胞的存活率、保护率、黄酮类物质摄取效果优异，降低了MDA含量和ROS水平，抑制了CAT、POD和GR酶活性。细胞对SC总酚的吸收最高。活性表明GL具有广谱抗菌活性。因此，SY显示出潜在的抗氧化活性，为人们选择食用植物油提供了重要的参考价值。
