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浓缩苹果汁与饮料检测项目报价? 解决方案? 检测周期? 样品要求? |
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本标准规定了因食品风味浓郁或物理状态(粘度、颜色、粉状度等)原因而不能直接进行感官分析的样品制备准则。 本标准尤其适用于具有浓郁气味产品(如香料和调味品)和特别浓的液体产品(糖浆和某些提取液)。 本标准不适用于传统以熬、煮、泡制的方式消费的饮料(如茶、咖啡、药用植物)。
本标准规定了浓缩苹果汁的术语和定义、产品分类、要求、试验方法、检验规则、标志、包装、运输和贮存。本标准适用于3.1所定义的浓缩苹果汁。
本标准规定了预防和降低苹果汁及其他饮料的苹果汁配料中展青霉素污染的操作规范。本标准适用于苹果的农业生产中种植、采收、运输、采后处理、贮藏、贮藏后分选等操作过程,以及苹果在果汁加工中运输、检查、榨汁、果汁包装、包装后处理、果汁质量评估等操作过程。
本标准规定了苹果醋饮料的术语和定义、技术要求、试验方法、检验规则和标签、包装、运输、贮存。本标准适用于本标准3.2所定义的苹果醋饮料。
The principle of the method specified is extraction of patulin from a test portion using ethyl acetate followed by partitioning of the extract with aqueous sodium carbonate solution, qualitative and quantitative determination of the patulin content by means of high-performance liquid chromatography using an ultraviolet detector. The limit of detection is 10 鎔/l, based on 5 ml of ready-to-drink apple juice.
The principle of the method specified is extraction of patulin in a mixture of ethyl acetate and chloroform (3:2 by volume), filtration of the extract on a silica-gel column and qualitative and quantitative determination by means of two-directional thin-layer chromatography. The spots are developed using a 3-methyl-2-benzothiazoline hydrazone (MBTH) hydrochloride solution. The limit of detection is 25 鎔/l, based on 50 ml of ready-to-drink apple juice. The more precise method of analysis is HPLC.
The part of ISO 8128 specifies a method using thin layer. Chromatography for the determination of the patulin content of apple juice, apple juice conconcentrates and drinks containing apple juice
Настоящий стандарт устанавливает метод определения содержания патулина в яблочном соке, концентрированных яблочных соках и напитках, со
Настоящий стандарт устанавливает метод определения содержания патулина в яблочных соках, концентрированных яблочных соках и напитках, с