网络平台购买的4种抹茶粉的品质分析

Quality analysis of 4 matcha powder purchased from internet market

目的探讨来自网络平台不同品牌抹茶粉的品质差异。方法通过外包装、感官评分、内质成分等方面分析来自淘宝网的4个抹茶粉品质。结果从4个产品的外包装上可以查看到4个抹茶粉的执行的生产标准号不一样,初步判断它们的品质各异。2号虽然名字是某抹茶,但在配料中添加了精幼砂糖。其余3个抹茶粉从感官到内质差异较大,1号抹茶粉外形细腻、翠绿;3、4号抹茶粉外形细腻,颜色绿黄,其香气从嫩香到清香,滋味从鲜醇到清爽;1号抹茶粉感官审评得分较高。内质成分,这3个抹茶粉的茶多酚、咖啡碱、可溶性糖、水浸出物的含量与报道抹茶中含量变化范围比较一致,1号抹茶氨基酸含量和叶绿素的含量均最高,并与其他2个差异显著(P<0.05)。结论来自网络平台销售4个抹茶粉产品,生产标准和产品质量存在一定的差异。

Objective To explore the quality differences of different brands of matcha powder from the network platform.Methods The quality of four matcha powder from taobao.com were analyzed through the aspects of external packaging,sensory score and endoplasm composition.Results It could be seen from the outer packages of the four products that the production standard numbers of the four matcha powders were different.The first judgement was that they are of different qualities.The No.2,despite its name,had added refined granulated sugar to its ingredients.The other three matcha powder were quite different from the senses to the endoplasm.The appearance of No.1 matcha powder was delicate and green.The No.3 and No.4 matcha powder had a delicate appearance and a green and yellow color.Its aroma was from tender fragrance to faint fragrance,taste was from fresh alcohol to refreshing.Score of sensory evaluation of No.1 matcha powder was higher.Endoplasm components:The contents of tea polyphenols,caffeine,soluble sugar and water extract of the three matcha powder were consistent with the content variation range of the reported matcha powder,and the amino acid content and chlorophyll content of No.1 matcha were the highest,and significantly different from the other two matcha powder(P<0.05).Conclusion Four matcha powder products were sold on the network platform,and there were certain differences in production standards and product quality.