摘要
为提高啤酒糟的饲用价值,开发啤酒糟功能性饲料添加剂,对啤酒糟采用碳酸钠和双氧水进行预处理,采用单因素试验和响应面分析法,对啤酒糟制备低聚木糖饲料添加剂的酶解条件进行了研究。结果表明:当初始pH5.5,木聚糖酶201 U/g,纤维素酶248 U/g,酶解温度48℃,酶解时间3 h时,啤酒糟中低聚木糖含量为23.8673 mg/g。
In order to improve the feeding value of brewer's grains and develop functional feed additive for brewer's grains.The brewers'grains was pretreated with sodium carbonate and hydrogen peroxide as pretreatment agent.The response surface methods were conducted based on single factors to study the enzymolysis process for preparing xylooligosaccharide feed additive by brewers'grains.The results showed that the suitable enzymatic hydrolysis process were:the initial pH 5.5,xylanase 201 U/g,cellulase 248 U/g,enzymolysis temperature 48℃and enzymolysis time 3 h.Under these conditions,the content of xyooligosaccharides in brewers'grains reached 23.8673 mg/g.
作者
邓元元
胡超
陈思宇
朱文娟
王刚
兰时乐
DENG Yuanyuan;HU Chao;CHEN Siyu;ZHU Wenjuan;WANG Gang;LAN Shile(College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha,Hunan Province 410128,China)
出处
《中国饲料》
北大核心
2019年第9期54-62,共9页
China Feed
基金
湖南省重点研发项目(2016NK2103)
关键词
啤酒糟
低聚木糖
响应面法
木聚糖酶
纤维素酶
brewers'grains
xylooligosaccharide
response surface methods
xylanase
cellulase
