生物技术通报 ›› 2019, Vol. 35 ›› Issue (10): 80-88.doi: 10.13560/j.cnki.biotech.bull.1985.2019-0433

• 研究报告 • 上一篇    下一篇

不同产地油茶籽油提取物的抗氧化活性比较分析及其营养评价

叶洲辰, 吴友根, 于靖, 张军锋, 杨东梅, 胡新文   

  1. 海南大学热带农林学院,海口 570100
  • 收稿日期:2019-05-20 出版日期:2019-10-26 发布日期:2019-09-30
  • 作者简介:叶洲辰,女,博士研究生,研究方向:南药植物种质资源开发与利用;E-mail:1196247235@qq.com
  • 基金资助:
    海南省重大科技计划项目(ZDKJ2017004),海南省重点研发专项(ZDYF2016157)

Comparative Analysis of Antioxidant Activities of Camellia oleifera Oil Extracts from Different Areas and Their Nutritional Assessments

YE Zhou-chen, WU You-gen, YU Jing, ZHANG Jun-feng, YANG Dong-mei, HU Xin-wen   

  1. Institute of Tropical Agriculture and Forestry,Hainan University,Haikou 570100
  • Received:2019-05-20 Published:2019-10-26 Online:2019-09-30

摘要: 为探究海南油茶籽油(茶油)与大陆优良品系茶油间品质差异,采用气相色谱-质谱联用(GC-MS)、高效液相色谱技术(HPLC)对其脂肪酸和活性成分进行检测,并通过4种分析方法评估茶油提取物的抗氧化能力。结果表明,海南(炒)茶油油酸含量(81.353%)显著高于江西(蒸)茶油(70.849%),亚油酸在海南(蒸)茶油中含量最高(8.080%),而该成分在海南(炒)茶油中却未检测出。此外,在样品中还鉴定到角鲨烯(2.300%-15.237%)、维生素E(0.400%-2.900%)、豆甾醇(0%-2.507%)及茶多酚(6种)等次生代谢产物,其中,海南(炒)茶油提取物中槲皮素含量高达59.025 µg/g,约为海南(蒸)茶油和江西(蒸)茶油的20倍,差异显著。供试茶油均具有一定程度的抗氧化活性,呈剂量依赖关系,相比其他3种茶油,海南(炒)茶油具有更强的自由基清除能力和还原能力,说明此栽培种具有潜在的开发利用价值和医用经济效益。

关键词: 油茶籽油, 气相色谱-质谱联用, 高效液相色谱, 脂肪酸, 活性成分, 抗氧化能力

Abstract: In order to investigate the quality differences of Camellia oleifera oils between from Hainan Island and other areas,gas chromatography mass spectrometry(GC-MS)and high performance liquid chromatography(HPLC)were used to determine their fatty acids and active ingredients,and their antioxidant activities were evaluated by applying 4 analytical methods. The results indicated that the content of oleic acid(81.353%)in Hainan(stir-fried)oil was significantly higher than that in Jiangxi(steamed)oil(70.849%),and linoleic acid content(8.080%)was the highest in Hainan(steamed)oil,while it was not detected in Hainan(stir-fried)oil. In addition,some secondary metabolites such as squalene(2.300%-15.237%),vitamin E(0.400%-2.900%),stigmasterol(0%-2.507%)and 6 kinds of polyphenols were detected in the samples,and the level of quercetin in Hainan(stir-fried)oil extract was 59.025 µg/g,which was about 20 times higher than those in Hainan(steamed)oil and Jiangxi(steamed)oil,thus the difference was significant. Furthermore,the oil extracts of C. oleifera exhibited clear antioxidant activities in a dose-dependent manner,among them,the free radical scavenging capacity of Hainan(stir-fried)oil exceeded those of the other samples,concluding that this cultivar had potential utilization values as well as medical and economic benefits.

Key words: Camellia oleifera oil, GC-MS, HPLC, fatty acids, active ingredients, antioxidant activities