摘要
采用正交实验,确定了硫酸甲醇体系脱毒菜籽饼粕的最佳工艺参数为:以硫酸:甲醇:水=4:90:6(体积比)的混合液为脱毒体系,与菜籽饼粕的混合比为6:1(mL/g),室温下浸提30min。在此基础上,以静置淋洗脱毒方式对其在工业上的推广应用进行探讨。实验证明,以该脱毒方式脱毒,不仅节约了仪器和能源成本,还减少了后续工艺中中和饼粕的碱液用量。脱毒后饼粕中植酸去除率为91.2%,单宁去除率为83.1%,硫甙去除率为84.7%,异硫氢酸酯去除率为93.1%,噁唑烷硫酮去除率为95.4%,符合饲料级要求。脱毒后饼粕的各项营养成分含量均得到提高,可以代替豆饼或鱼粉用于配合饲料。
The optimum parameter of shower detoxification of rapeseed meal were confirmed as follows：sulphuric acid and methyl alcohol solution as detoxification, H2SO4 volume content 4%, methyl alcohol volume content 90%, water volume content 6% ,the ratio of extracting solvent（mL） and rapeseed meal （g） was 6：1, room temperature and duration of extraction 30min. The results indicated this kind of detoxification had advantages as follows： apparatus and energy sources cost were thrifty, and it also reduced alkali expenditure. After meal was detoxified, the extraction rate of phytic acid, tannin, glucosinate, ITC and OTC were 91.2%, 83.1%, 84.7%, 93.1%, 95.4% respectively which attain feed level guideline entirely. The nourishment ingredient of rapeseed meal after being detoxified increase all, so it may replace bean cake or fish meal as copulate feed.
出处
《食品工业科技》
CAS
CSCD
北大核心
2008年第7期165-168,共4页
Science and Technology of Food Industry
关键词
菜籽饼粕
淋洗脱毒
硫甙
植酸
单宁
rapeseed meal
immobile shower detoxification
glucosinate
phytic acid
tannin
