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濃縮蘋果汁與飲料檢測項目報價???解決方案???檢測周期???樣品要求? |
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本標準規定了因食品風味濃郁或物理狀態(粘度、顏色、粉狀度等)原因而不能直接進行感官分析的樣品制備準則。 本標準尤其適用于具有濃郁氣味產品(如香料和調味品)和特別濃的液體產品(糖漿和某些提取液)。 本標準不適用于傳統以熬、煮、泡制的方式消費的飲料(如茶、咖啡、藥用植物)。
本標準規定了濃縮蘋果汁的術語和定義、產品分類、要求、試驗方法、檢驗規則、標志、包裝、運輸和貯存。本標準適用于3.1所定義的濃縮蘋果汁。
本標準規定了預防和降低蘋果汁及其他飲料的蘋果汁配料中展青霉素污染的操作規范。本標準適用于蘋果的農業生產中種植、采收、運輸、采后處理、貯藏、貯藏后分選等操作過程,以及蘋果在果汁加工中運輸、檢查、榨汁、果汁包裝、包裝后處理、果汁質量評估等操作過程。
本標準規定了蘋果醋飲料的術語和定義、技術要求、試驗方法、檢驗規則和標簽、包裝、運輸、貯存。本標準適用于本標準3.2所定義的蘋果醋飲料。
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