酸溶液对菜籽粕脱毒工艺探讨  

Study on the Technology of Detoxification of Rapeseed Meal by Acid Solvent

作　　者：兰文菊[1] 彭密军[1] 彭胜[1] 吕强[1] 张琳杰[1] 张昌伟[1] 

机构地区：[1]吉首大学林产化工工程湖南省重点实验室,张家界427000

出　　处：《中国粮油学报》2012年第11期67-71,共5页Journal of the Chinese Cereals and Oils Association

基　　金："十二五"国家科技支撑计划(2011BAI01B08);湖南省教育厅高校产业化培育项目(2011CY015);湖南省高校"林产资源化学与林化产品开发"科技创新团队支持计划资助项目(湘教通(2010)212号)

摘　　要：菜籽粕是一种植物蛋白资源,富含氨基酸、矿物元素、维生素等多种常规营养成分,但须脱毒方能用于饲料。试验以菜籽粕为研究对象,采用单因素和正交试验确定了酸溶液对菜籽粕脱毒的最佳工艺参数,即硫酸浓度4%;液固比为20∶1(mL/g),60℃下浸提60 min,提取1次。经硫酸溶液脱毒后菜籽粕中植酸、单宁、硫代葡萄糖苷、异硫氰酸酯和噁唑烷硫酮的脱除率分别为92.16%、90.45%、93.37%、90.85%和88.97%,符合饲料级要求,脱毒后其蛋白质含量提高。Rapeseed meal is a kind of vegetable protein resources. There are a variety of conventional nutrients in it such as amino acid, vitamin, mineral elements, ect. , yet it must be de -toxificated before it is added into feed. The technologies of de - toxification of rapeseed meal were confirmed by single factors and orthogonal experiment. The optimum parameters were as follows ：sulphuric acid（4% ）as de -toxification solvent, liquid -solid ratio 20：1 （mL/g）, 60 min,60 ℃. Under these conditions, the de- toxificated rate of phytic acid, tannin, glucosinolate, isothiocyanate （ ITC ） and oxazolidine （OZT） were 92.16 % ,90.45 % ,93.37 % ,90.85 % and 88.97 %, respectively which fulfil feed level guideline. The nutrition in detoxified rapeseed meal was increased.

关 键 词：酸溶液 菜籽粕 脱毒 

分 类 号：TQ645.99[化学工程—精细化工]