摘要
在挤压和液化脱胚玉米时添加中温α-淀粉酶,以挤压机套筒温度、挤压原料中温α-淀粉酶添加量、液化时中温α-淀粉酶添加量、液化时间、糖化酶添加量为挤压-糖化系统参数,采用五因素五水平(1/2实施)二次正交旋转组合试验设计,研究系统参数对DE值、过滤速度和糖液化透射比的影响规律。在较优挤压-糖化系统参数下,挤压添加中温α-淀粉酶脱胚玉米制得糖化液的DE值为96.8%、过滤速度为483.6 L/(m2.h)、透射比为94.0%;未挤压脱胚玉米对照试验的DE值为72.5%、过滤速度为20.2 L/(m2.h)、透射比为90.5%。
Moderate temperature α-amylase was used during the extrusion and liquefaction of degermed corn.The method of the quadratic orthogonal rotating combination design of five factors（barrel temperature,moderate temperature α-amylase amount used in the extrusion,moderate temperature α-amylase amount used in liquefaction,liquefaction time,amyloglucosidase amount used in saccharifaction） and five levels was applied.The influence of extrusion and producing glucose syrup system parameters on DE value,filtration speed and transparence were studied.The optimized system parameters of extrusion and producing glucose syrup were used to produce glucose syrup,and DE value was 96.8%,filtration speed was 483.6L/（m2·h）,transparence was 94.0%,the results of control test were： DE value was 72.5%,filtration speed 20.2L/（m2·h）,transparence 90.5%.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第5期126-130,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
农业科技成果转化资金资助项目(05EFN21370051)
山东省自然科学基金资助项目(Y2008B10)
山东理工大学创新研究团队支持计划资助项目(CX0601)
关键词
脱胚玉米
挤压
中温α-淀粉酶
葡萄糖浆
Degermed corn
Extrusion
Moderate temperature α-amylase
Glucose syrup
