阿拉伯木聚糖的氧化交联与啤酒大麦麦芽过滤性能的相关性研究  

Correlation analysis of arabinoxylan oxidative cross- linking and barley malt filtration performance

作　　者：周婷[1,2,3] 金昭[1,2,3] 高飞[1,2,3] 蔡国林[2,3] 陆健[1,2,3,4] 

机构地区：[1]江南大学工业生物技术教育部重点实验室,江苏无锡214122 [2]江南大学粮食发酵工艺与技术国家工程实验室,江苏无锡214122 [3]江南大学生物工程学院,江苏无锡214122 [4]宿迁市江南大学产业技术研究院,江苏宿迁223800

出　　处：《食品工业科技》2015年第11期110-115,共6页Science and Technology of Food Industry

基　　金：国家自然科学基金项目(31171736);国家863计划(2013AA102109);江苏省普通高等学校科研成果产业化推进项目(JHB2012-26);江苏省科技支撑计划(BE2012397);江苏省高校优势学科建设工程资助项目;高等学校学科创新引智计划(111计划)资助项目(111-2-06);安全食品精深加工科技创新平台建设(2012B091400030)

摘　　要：本文以18个大麦麦芽样品为研究对象,以pearson相关分析法研究了大麦麦芽中过氧化物酶(Peroxidase,POD)、麦汁中键合态阿魏酸以及多聚阿拉伯木聚糖(PAX)与麦芽过滤性能的相关性。研究结果表明:麦芽过滤速度与麦芽POD酶活、麦汁粘度、麦汁中键合态阿魏酸及PAX含量呈显著负相关,相关系数分别为0.632(p<0.01)、0.521(p<0.05)、0.555(p<0.05)和0.664(p<0.01);PAX含量与键合态阿魏酸含量、麦汁粘度呈显著正相关,相关系数分别为0.590(p<0.05)和0.595(p<0.01)。这一结果表明,阿魏酸介导的AX的氧化交联与大麦麦芽过滤性能紧密相关,很可能是AX导致麦芽过滤性能差的重要途径之一。本文为改善大麦麦芽过滤性能提供了一定的理论依据。In this study, peroxidase (POD) activity, bound ferulic acid and polyarabinoxylan (PAX) contents, and filterability of 18 barley malts were analysed. And the correlations between them were studied by pearson correlation analysis.The results showed that there were significantly negative correlation between the filtration rate and the POD activities,wort viscosity, bound ferulic acid and PAX content in wort,the correlation coefficient were 0.632 ( p < 0.01 ), 0.521 ( p < 0.05 ), 0.555 ( p < 0.05 ) and 0.664 ( p < 0.0l ) respectively. While as there were positive correlation between the content of PAX and the content of bound ferulic acid, wort viscosity, the correlation coefficient were 0.590 ( p < 0.05) and 0.595 ( p < 0.01 ) respectively.The result showed that the oxidative cross- linking of AX through ferulic acid polymerization could be associated with barley malt filtration performance.Further more, it was likely to result in poor malt filtration.This study provided a new theory for improving the filterability of barley malt.

关 键 词：大麦麦芽 过滤性能 阿拉伯木聚糖 氧化交联 过氧化物酶 阿魏酸 

分 类 号：TS201.1[轻工技术与工程—食品科学]