摘要
新疆棉籽油含有700 mg/kg的蜡质和26%~28%的固体脂,由于新疆气温多在零度以下,棉籽油在运输、储存和销售过程中易产生固化、沉淀、发朦,影响棉籽油的外观、食用和销售。为了保持包装棉籽油透明,提高棉籽油的质量和附加值,对棉籽油进行深度分提以脱蜡脱脂。介绍了棉籽油深度分提工艺,即在15℃脱除蜡质,在7℃分提出棕榈酸甘三酯,继续降温至-10℃分提出棕榈酸甘二酯、棕榈酸甘一酯及其他硬脂,最终得到在低温下保持透明的棉籽液油。
Due to the below zero temperature in Xinjiang and the cottonseed oil containing 700 mg/kg of waxes and 26%-28% of solid fats, the solidfication, precipitation and haziness will happen in the cottonseed oil during transportation, storage and sales, which affects the appearance, consumption and marketing of cottonseed oil. In order to keep the packaged cottonseed oil transparent and improve the quality and added value of the cottonseed oil, deep fractionation of cottonseed oil was carried to remove the wax and soild fat. The cottonseed oil deep fractionation process was introduced, i.e. removing wax at 15℃, fractionating palmitic acid triglycerides at 7℃, fractionating palmitic acid diglycerides, palmitic acid monoglycerides and other stearin at-10℃, and finally cottonseed olein remaining transparent at low temperatures could be obtained.
作者
左青
李普选
左晖
ZUO Qing;LI Puxuan;ZUO Hui(Jiangsu FAMSUN Oils&Fats Engineering Co.,Ltd.,Yangzhou 225127,Jiangsu,China;Zhengzhou Yuan Ocean Oil Engineering Technology Co.,Ltd.,Zhengzhou 450002,China;Guangzhou Xinmas Co.,Ltd.,Guangzhou 510890,China)
出处
《中国油脂》
CAS
CSCD
北大核心
2021年第10期150-152,共3页
China Oils and Fats
关键词
棉籽油
脱蜡
脱脂
深度分提
cottonseed oil
dewaxing
defatting
deep fractionation
