注射级大豆磷脂提取工艺的研究  

Extraction of soybean lecithin for injection

作　　者：吕名蕊[1] 吕名秀[2] 蔡春明 黄健花[1] 王兴国[1] 

机构地区：[1]江南大学食品学院,食品科学与技术国家重点实验室,江苏无锡214122 [2]河南工程学院材料与化学工程系,郑州450000 [3]江苏省油脂产品质量监督检验中心,江苏张家港215600

出　　处：《中国油脂》2010年第9期59-62,共4页China Oils and Fats

摘　　要：采用乙醇加热提取和冷冻纯化的方法，从大豆粉末磷脂提取Pc含量在72％～85％，PE含量在5％～10％范围内的大豆磷脂产品。考察了乙醇体积分数、料液比、提取温度、提取时间、冷冻温度、冷冻时间对产品得率和Pc、PE含量的影响，在PC、PE含量符合要求的情况下以得率最高为优。结果表明理想提取工艺为乙醇体积分数95％，料液比1：4，提取温度60℃，提取时间45min，冷冻温度-15℃，冷冻时间30min。在该条件下产品的得率为22．26％，PC含量为77．02％，PE含量为8．63％。The soybean lecithin products with 72% - 85 % of phosphatidylcholine （PC） and 5 % - 10% of phosphatidyl ethanolamine（PE） were extracted from soybean phospholipids powder using hot - ethanol extraction and frozen purification method. The effects of ethanol concentration, the ratio of material to liquid, extraction temperature, extraction time, freezing temperature and freezing time on product yield, and the PC and PE content were investigated. High yield was expected, as well as the PC content and PE content of the product ranged from 72% to 85% and from 5% to 10%, respectively. The results showed that the best conditions were ethanol concentration 95%, the ratio of material to liquid 1：4, extraction temperature 60 ℃, extraction time 45 min, freezing temperature - 15 ℃, freezing time 30 min. Under the conditions, the product yield was 22. 26%, PC content was 77.02%, and PE content was 8.63%.

关 键 词：大豆磷脂 提取 乙醇 冷冻 

分 类 号：TQ645.96[化学工程—精细化工]