响应面法优化臭氧与紫外复合处理枸杞干果杀菌工艺  

Optimization of ozone and ultraviolet combined on dried Lycium barbarum L. sterilization process by response surface methodology

作　　者：龚媛[1] 刘敦华[1] 曲云卿 廖若宇[1] 徐梦霞[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《食品工业科技》2015年第12期254-258,共5页Science and Technology of Food Industry

摘　　要：以枸杞干果为原料,采用臭氧与紫外复合处理进行杀菌,通过响应面分析优化确定出臭氧与紫外复合处理枸杞杀菌的最佳工艺条件为:辐射距离31cm、处理时间32min、臭氧浓度31mg/m3,在此工艺条件下测得臭氧紫外复合处理杀菌率为99.999%,在最佳工艺条件下处理对枸杞干果品质无显著影响(p>0.05),表明臭氧与紫外复合作用在杀菌方面具有一定的优势。本文为宁夏枸杞微生物降解提供了科学的数据和有效的技术手段。Ozone and ultraviolet combined on Lycium barbarum L. dry fruit sterilization process. Sterilization process conditions were further optimized using response surface methodology as follow：radiation distance 31cm, processing time 32min,the ozone concentration 31mg/m^3,for this condition,the sterilizing efficiency of ozone and ultraviolet combined on Lycium barbarum L. could be 99.999%. The quality of Lycium barbarum L. dry fruit did not change significantly after treatment under optimum conditions （p〉0.05）. This result indicating that the compound effects of ozone and ultraviolet had a certain advantages in terms of sterilization and provided scientific data and effective technical means for microbes degradation of Lycium barbarum L. Ningxia.

关 键 词：枸杞 臭氧与紫外复合处理 杀菌率 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]