摘要
对黄秋葵籽油提取和精炼工艺进行了研究,结果表明,采用石油醚-正己烷等量混合溶剂浸提黄秋葵籽油,在料液比1:6(g/m L),70℃下提取4 h,提取率可达18.12%。毛油经常规水化脱胶可脱除87.78%的磷脂;碱炼脱酸后,酸价下降到0.16 mg KOH/g;采用活性炭脱色最高脱色率可达80.42%;在真空度为0.01 MPa,温度为200℃下,通入水蒸气脱臭80 min,可得到淡黄色无异味的油脂。
This paper studies on extraction and refi nement of Hibiscus esculentus seed oil. Results show the optimal technology conditions for extracting are as follows： petroleum ether-hexane（1：1） as mixsolvent, seeds/solvent ratio l：6（g/m L）, time 4 h, and temperature 70 ℃, the oil yield is 18.12% under these conditions. The refi ning process is as follows： adopting hydrated degumming, the lecithin is taken off by 87.78%, using alkali liquor to take off the acid, the acid value declines to 0.16 mg KOH/g, using activated carbon to decolor, the maximal fading rate is up to 80.42%; and then adopting steaming deodorization at vacuum of 0.01 MPa, and temperature 200 ℃, the deodorization time is 80 min. With the abovementioned processing, the refi ned Hibiscus esculentus seed oil is no abnormal taste, and with the color of light yellow.
出处
《食品科技》
CAS
北大核心
2015年第5期210-213,共4页
Food Science and Technology
关键词
黄秋葵籽油
提取
精炼
Hibiscus esculentus seed oil
extraction
refinement
