2023,32(1)福建分析测试FujianAnalysis&Testing现制现售型奶茶总糖含量的检测及分析阮雅娟(宁德市产品质量检验所,福建宁德352100)收稿日期:2022-10-13作者简介:阮雅娟(1988—),女,硕士,工程师,研究方向为食品检测,E-mail:ydxbhjjd@163.com摘要:目的:建立测定奶茶中总糖含量的方法,为奶茶总糖含量检测的标准制定提供参考;同时应用该方法测定分析宁德市区热销奶茶的总糖含量情况。方法:样品经过沉淀、过滤及水解等前处理后制备成试样水解液,再使用亚铁氰化钾滴定法测定奶茶样品中的总糖含量;购买宁德学校附近及市区各大畅销奶茶店铺不同甜度规格的奶茶样品,进行总糖含量的检测和分析。结果:该方法精密度、重复性良好,相对标准偏差值均小于0.2%;加标回收率在95.2%~102.1%之间,符合食品理化检验要求;平均一杯5分糖、7分糖及全糖甜度的奶茶的糖分摄入量均会超过《中国居民膳食指南》中建议的每日糖摄入量25g。结论:该实验方法准确、可靠、重现性良好,适用于市面上各种含糖量的奶茶样品检测;奶茶含糖量较高,应适度饮用,控制好每天的糖分摄入。关键词:奶茶;总糖;亚铁氰化钾滴定法中图分类号:O655.2+TS207.3文献标识码:A文章编号:1009-8143(2023)01-0039-06Doi:10.3969/j.issn.1009-8143.2023.01.08Detectionandanalysisoftotalsugarcontentinready-mademilkteaRuanYa-juan(NingdeProductQualityInspectionInstitute,Fujian,Ningde352101,China)Abstract:Objective:Toestablishamethodforthedeterminationoftotalsugarcontentinmilktea,soastoproviderefer⁃encefortheformulationofthestandardforthedetectionoftotalsugarcontentinmilktea.Atthesametime,themethodwasappliedtodetermineandanalyzethetotalsugarcontentofhot-sellingmilkteainNingdeurbanarea.Methods:Thesamplewaspreparedintohydrolyzateafterprecipitation,filtrationandhydrolysis,andthenthetotalsugarcontentinthemilkteawasdeterminedbypotassiumferrocyanidetitrationmethod.Purchasemilkteasamplesofdifferentsweetnessspecificationsfromthebest-sellingmilkteashopsnearSchoolandintheurbanareainNingdetodetectandanalyzethetotalsugarcon⁃tent.Results:Themethodhasgoodprecisionandrepeatability,andtherelativestandarddeviationwaslessthan0.2%;therecoverieswere95.2%~102.1%,whichmettherequirementsoffo...