一种固态发酵饼粕制备低聚肽的方法
申请公布号:CN104372060A
申请号:CN201410390337.8
申请日期:2014.08.11
申请公布日期:2015.02.25
发明人:何荣海;王治平;邢欢;马海乐;蒋边;朱培培;丁文慧
分类号:C12P39/00(2006.01)I;C12P21/06(2006.01)I;C12R1/125(2006.01)N;C12R1/84(2006.01)N;C12R1/865(2006.01)N;C12R1/685(2006.01)N
主分类号:C12P39/00(2006.01)I
代理人:楼高潮
地址:212013 江苏省镇江市京口区学府路301号
摘要:本发明涉及一种固态发酵饼粕制备低聚肽的方法,涉及生物工程领域。一种或多种饼粕为原料,进行粉碎预处理,接种经扫频超声辅助培养的微生物发酵种子液,调节饼粕含水量至50%~60%(w/w),在多层输送带式发酵床30~35℃温度下进行60~80小时的磁场辅助发酵,发酵完成后加水提取低聚肽,提取液经离心去渣、脱色、干燥等步骤得到饼粕低聚肽产品。该方法可以显著降低固态发酵饼粕制备低聚肽的成本、提高生产效率。利用本方法所得到的低聚肽可用于人类保健和营养品、动物日粮等。
主权项:一种固态发酵饼粕制备低聚肽的方法,其特征在于按照下述步骤进行:(1)原料进行粉碎预处理,过60~80目筛;(2)接种微生物发酵剂:采用扫频超声辅助培养罐培养接种微生物菌种培养发酵剂,接种占原料饼粕质量5%~10%的发酵剂,混匀;(3)固态发酵:调节发酵基质水分含量至50%~60%(w/w),在多层输送带式磁场辅助固态发酵床进行发酵;(4)低聚肽提取:按照固液质量比1:3~1:5比例加水提取低聚肽,提取2~3次,合并提取液,卧螺式离心、再经板框式压滤机过滤得到低聚肽粗提液;(5)低聚肽成品制备:用活性炭脱色,经真空浓缩后喷雾干燥得到低聚肽成品。
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