啤酒强制老化过程中SO_2、抗氧化力与TBA值的相关性研究  

Correlation analysis among content of sulfur dioxide,antioxidant activity and TBA in beer treated with forced-ageing

作　　者：孙桂芳[1] 赵海锋[1] 赵谋明[1] 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640

出　　处：《食品工业科技》2012年第7期49-51,54,共4页Science and Technology of Food Industry

基　　金：国家自然科学基金项目(31000810);广东省科技计划工业攻关项目(2009A010700004;2010A010500002)

摘　　要：研究了啤酒强制老化过程中二氧化硫含量、抗氧化力评价指标与TBA值之间的相关性。Person相关性分析表明:二氧化硫含量与DPPH自由基清除活性、ABTS自由基阳离子清除活性、还原力和金属螯合性之间有显著的正相关性,TBA值与抗氧化评价指标及二氧化硫含量之间呈显著的负相关性。逐步回归分析表明:提高啤酒中DPPH自由基清除活性可以抑制啤酒老化的TBA值,对TBA的抑制力达到97.7%。Correlation analysis among contents of sulfur dioxide,antioxidant activity assays and TBA in beer treated with forced-ageing was studied.Results from person correlation analysis showed that the content of sulfur dioxide showed significant positive correlations with DPPH radical scavenging activity,ABTS radical cation scavenging activity,reducing power and metal chelating activity.Significant negative correlations were found between TBA value and content of sulfur dioxide as well as antioxidant activity.Stepwise liner regression further demonstrated that the TBA value in beer could be inhibited by increasing the DPPH radical scavenging activity,and it made 97.7% of contribution to the level of TBA in beer.

关 键 词：啤酒 二氧化硫 抗氧化力 TBA值 

分 类 号：TS262.5[轻工技术与工程—发酵工程]