γ-氨基丁酸发酵液喷雾干燥条件优化的研究  

Study on Spray Drying of Gamma-aminobutyric Fermentation Liquid Optimal Conditions

作　　者：刘元[1] 王玥玮[1] 张立娟[1] LIU Yuan;WANG Yue-wei;ZHANG Li-juan(Tianjin Food Research Institute Co., Ltd., Tianjin 301609, China)

机构地区：[1]天津市食品研究所有限公司

出　　处：《食品研究与开发》2019年第18期102-104,共3页Food Research and Development

基　　金：天津市科研院所技术开发项目(16YFFCZC00260)

摘　　要：以新鲜米糠为原料,发酵生产γ-氨基丁酸(gamma-aminobutyric,GABA),对发酵液进行浓缩、喷雾干燥制备GABA粉。以GABA粉的溶解时间为测定指标,对喷雾压力、进料速度和进风温度进行单因素试验,通过正交试验法优化喷雾干燥的工艺参数。结果表明,最优的喷雾干燥条件为:喷雾压力0.8 MPa、进料速度0.9 L/min、进风温度140 ℃,此条件下得到的GABA粉的溶解时间为40 s。GABA的含量为28.71 mg/g。Using fresh rice bran as raw material to product GABA.The fermentation liquid was concentrated and sprayed drying to product GABA powder .Taking the dissolution time of GABA powder as the measurement index,the spray pressure, feed rate and inlet air temperature were studied using single factor test.Through orthogonal test get the best spray drying condition.The results showed the best conditions were spray pressure 0.8 MPa, feed rate 0.9 L/min and inlet air temperature 140 ℃.Under these conditions, dissolution time of GABA powder was 40 s ,the content of GABA was 28.71 mg/g.

关 键 词：米糠 Γ-氨基丁酸 γ-氨基丁酸粉 喷雾干燥 优化 

分 类 号：TS209[轻工技术与工程—食品科学]