Page 137 - 精细化工2020年第2期

第 37 卷第 2 期 精 细 化 工 Vol.37, No.2
202 0 年 2 月 FINE CHEMICALS Feb. 2020

食品与饲料用化学品
不同方法提取油茶籽油品质比较及电子鼻分析

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丛凯平 ，李婷婷 1,2* ，吴彩娥 1,2 ，范龚健 1,2 ，林 杰 ，索安迪
（1. 南京林业大学 轻工与食品学院，江苏 南京 210037；2. 南方现代林业协同创新中心，江苏 南京
210037）

摘要：采用气相色谱-质谱、化学法对浸出法、冷榨法和超临界流体 CO 2 提取法所制油茶籽油的主要感官和理化
指标进行了测定，并利用电子鼻技术对不同提取方法所制油茶籽油进行了鉴别。结果表明，3 种提取方法所制
油茶籽油在多项理化指标方面存在显著性差异。其中，超临界法所制油茶籽油的酸价、碘值与过氧化值均小于
其他两种茶油，且其过氧化值与其他两种茶油相比具有显著性差异；3 种茶油的中性色泽指标均具有显著性差
异。其中，以冷榨法最低，浸出法最高；在脂肪酸组成和出油率方面，冷榨法所制的油茶籽油不饱和脂肪酸含
量最高，浸出法出油率最高；而皂化值的结果表明，3 种提取方法差异不显著。电子鼻技术的主成分分析和判
别因子分析结果表明，累积方差贡献率分别为 99.622%和 99.999%，鉴别指数都为 88，电子鼻技术能够对不同
提取方法所制得的油茶籽油进行准确鉴别。
关键词：油茶籽油；理化性质；电子鼻；脂肪酸组成；食品化学品
中图分类号：TS225.16 文献标识码：A 文章编号：1003-5214 (2020) 02-0339-07

Quality comparison and electronic nose analysis of Camellia oleifera
Abel seed oil extracted by different methods

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Cong Kaiping , Li Tingting 1,2* , Wu Caie , Fan Gongjian , Lin Jie , Suo Andi
（1. College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
2. Southern Modern Forestry Collaborative Innovation Center, Nanjing 210037, Jiangsu, China）
Abstract: Gas chromatography-mass spectrometry and chemical methods were used to determine physical
and chemical indicators and main sense of Camellia oleifera Abel seed oil extracted by cold pressing
method, leaching method and supercritical CO 2 method. The Camellia oleifera Abel seed oil extracted by
three methods was analyzed and distinguished using electronic nose technology. The results showed that
there were significant differences in many physical and chemical indicators of Camellia oleifera Abel seed
oil extracted by different methods. The acid value, iodine value and peroxide value of Camellia oleifera
Abel seed oil extracted by supercritical CO 2 method were lower than those of two other Camellia oleifera
Abel seed oil, and the peroxide value was significantly different from that of two other Camellia oleifera
Abel seed oil. Furthermore, the neutral color indicators of three Camellia oleifera Abel seed oil had
significant differences, among them, cold pressing method was the lowest and leaching method was the
highest. In terms of fatty acid composition and production rate, the fatty acid composition of Camellia
oleifera Abel seed oil extracted by cold pressing method was the highest, but the production rate by
leaching method was the highest. The saponification values results indicated that the differences were not
significant in three extraction methods. The principle component analysis of Camellia oleifera Abel seed oil
analyzed and distinguished by electronic nose technology showed that cumulative variance contribution rate
was 99.622%. The results of discriminant factor analysis showed that the cumulative contribution of the

收稿日期：2019-05-14; 定用日期：2019-08-26; DOI: 10.13550/j.jxhg.20190432
基金项目：江苏省自然科学基金青年科学基金（BK20150883）；南京林业大学青年科技创新基金（CX2017020）；江苏高校优势学科
建设工程资助项目（PAPD）
作者简介：丛凯平（1995—），女，硕士生，E-mail：1121650769@qq.com。联系人：李婷婷（1982—），女，副教授，E-mail：
litingting@njfu.edu.cn。