16 486-489 上接447 工艺技术 4-10 微波辅助水代法提取油茶籽油条件研究.pdf
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现代食品科技 Modern Food Science and Technology 2010, Vol.26, No.5
微波辅助水代法提取油茶籽油条件研究
纪鹏,周建平,刘向宇
(湖南农业大学食品科学技术学院,湖南长沙410128 )
摘要:本文利用微波辅助水代法从油茶籽中提取油茶籽油,通过单因素试验和正交试验探讨了提取温度、提取时间、料
液比、微波功率对油茶籽油提取率的影响。试验结果表明,工艺参数分别为:提取温度70 ℃,提取时间3
h ,料液比1:4,微波功率800 W ,在此条件下,油茶籽油提取率可达到91.85%。
关键词:微波;油茶籽油 ;提取率;提取工艺
文章篇号:1673-9078(2010)5-486-489
Microwave-Assisted Aqueous Extraction of Camellia Oil
JI Peng, ZHOU Jian-ping, LIU Xiang-yu
(College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China)
Abstract: The extraction of camellia oil by microwave-assisted aqueous extraction was studied in this paper. The effects of
extraction temperature, time, ratio of material to solvent, and microwave power on the camellia oil extraction rate were discussed through
single factor and orthogonal experiments. The experimental results showed that the optimum conditions for camellia oil extraction were
as follows: the extraction temperature 70 ℃, extraction time 3 h, radio of material to solvent 1:4, and microwave power 800 W. Under
these optimum conditions, the extraction rate of camellia oil reached 91.85%.
Key words: microwave; camellia oil; extraction rate; extraction
486
油茶籽油是用油茶籽仁经压榨或浸提得 2003进行;总灰分测定:灼烧法,按GB/T500
[1,2] 9.4-
到的油脂,据文献报道 ,油茶籽油色清味
香,其脂肪酸组成中不饱和脂肪酸— 2003进行;还原糖含量测定:直接滴定法,
油酸和亚油酸的含量高达83%~ 按GB/T5009.9-
90%,长期食用有利于防止血管硬化、高血 2003进行;淀粉含量测定:酸水解法,按GB/
压和肥胖等疾病。具有“东方橄榄油”、“油中 T5009.9-2003进行。
[3]
珍品”等美誉 。 2.2 微波辅助水代法提取油茶籽油的工艺流程
油脂的传统制取方法有压榨法和溶剂浸 根据前期试验的结果,设计微波辅助提
出法,这两种方法都存在一定的缺陷。与之 取油茶籽油的工艺流程为:
相比,微波提取方法具有节能、溶剂消耗量
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