超临界CO 2萃取红瓜子仁油工艺及其脂肪酸组成分析.pdf

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CHINA OILS AND FATS
2017Vol.42No.11
油脂加工
超临界CO2萃取红瓜子仁油工艺
及其脂肪酸组成分析
谭韩英,陈振林,杨军君,胡蓉,凌海,何星存
(1.贺州学院食品与生物工程学院,广西贺州542899;2.广西壮族自治区粮油质量检验站,南宁530031)
摘要以红瓜子为原料、红瓜子仁油萃取率为指标,采用单因素试验和正交试验进行红瓜子仁油萃
取工艺优化,并对获得的红瓜子仁油进行了脂肪酸组成分析。结果表明,超临界CO2萃取红瓜子仁
油最佳工艺条件为:红瓜子仁粒径40目,萃取压力40MPa,CO2流量24L/h,萃取温度50℃,萃取
时间3.5h。在最佳工艺条件下,红瓜子仁油萃取率为9.27%。红瓜子仁油不饱和脂肪酸主要为
亚油酸(62.1%)、油酸(16.3%),不饱和脂肪酸含量达到79%,可作为一种优质植物油进行开发
利用。
关键词:红瓜子仁油;超临界CO2萃取江艺;脂肪酸
中图分类号:TS224:70646
文献标识码A
文章编号:1003-7969(2017)11-0024-04
Supercritical CO, extraction process of red melon seed oil and
its fatty acid composition
TAN Hanying, CHEN Zhenlin, YANG Junjun, HU Rong
LING Hai",HIE Xingcun
(1 College of Food and Bioengineering, Hezhou University, Hezhou 542899, Guangxi, China
2. Guangxi Zhuang Autonomous Region Grain and Oil Quality Inspection Station, Nanning 530031, China
AbstractUsing red melon seeds as raw malerial and extraction rate of red melon seed oil as index, the
extraction technology of red melon seed oil was optimized by single factor experiment and orthogonal ex-
eriment, and the fatty acid composition of red melon seed oil was analyzed. The results showed that the
optimal extraction process of red melon seed oil by supereritical CO, were obtained as follows. particle size
of red melon seed kernel 40 meshes, extraction pressure 40 Mpa, flow rate of CO, 24 L/h, extraction
temperature 50 C, extraction time 3.5 h. Under these conditions, the extraction rate of red melon seed
oil was 99. 27%0. The unsaturated fatty acids content of red melon seed oil reached 79%, mainly inclu-
ding linoleic acid (62.1%o) and oleic acid (16. 3%) and it could be used as a kind of high quality veg
enable oil for development and utilization
Key words red melon seed oil, supercritical CO, extraction, process, fatty acid
收稿日期:2017-03-09修回日期:2017-07
红瓜子富含脂肪、蛋白质、钙、磷和多种维生素,
基金项目:贺州学院食品工程硕士专业学位建设科学研究培其片大厚实、籽仁肥腴、色泽红润、鮮艳喜人。由
育项目(2014 SGZSKY1):国家级大学生创新创业训练计划
于红瓜子种植受气候、水土及栽培技术等方面原因
项目(201511838020):贺州市科学研究与技术开发计划项目
贺科产1608019);国家自然科学基金项目地区科学基金项
的局限,目前国内主要种植地有广西、云南、宁夏、新
目(21367012)
疆等,其中广西贺州信都红瓜子是贺州八步区传统
作者简介:谭韩英(1987),女,讲师,顽士,研究方向为食品名特优农产品,以质量特优、昧醇香、营养丰富,深受
加工与安全(E-maill)l山yly2014@163.com
广大消费者的喜爱,一直被消费者视为休闲
通信作者:何星存,教授,博士(E-mal)941790390q,com。佳品-。
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