NY/T 1257-2006
ActiveDetection of Fluorescent Agents in Mushroom
食用菌中荧光物质的检测
Catalogue
前言 → 1 范围 → 2 原理 → 3 仪器与设备 → 4 样品采集 → 5 检测步骤 → 6 结果表述 Foreword → 1 Scope → 2 Principle → 3 Instruments and Equipment → 4 Sample Collection → 5 Detection Procedure → 6 Result Expression
Scope
This standard specifies the detection method of fluorescent agents in mushroom. This standard is applicable to the qualitative detection of fluorescent agents in mushroom.
本标准规定了食用菌中荧光物质的检测方法。本标准适用于食用菌中荧光物质的定性检测。
Keywords
Application Summary AI generated
Mushroom producers and quality inspection agencies use this standard to detect whether mushrooms contain illegally added fluorescent whitening agents. By irradiating samples with UV light and observing blue-violet fluorescence, they can quickly assess product safety. This standard is crucial for ensuring the food safety of mushrooms and preventing illegal bleaching with fluorescent substances.
食用菌生产商和质检机构使用该标准来检测食用菌中是否含有非法添加的荧光增白剂。通过紫外灯照射观察样品是否发出蓝紫色荧光，可以快速判断产品安全性。该标准对于保障食用菌食品安全、防止荧光物质非法漂白具有重要意义。
AI Summary AI generated
This standard specifies a qualitative detection method for fluorescent agents in mushrooms, applicable to both fresh and dried products. The principle involves irradiating samples with 254 nm and 365 nm UV light and observing visible blue-violet fluorescence. The procedure includes sample collection, photography under normal light, and photography under UV light in dark conditions, emphasizing image authenticity. Results are expressed as positive or negative. The method is simple and rapid, suitable for on-site screening.
该标准规定了食用菌中荧光物质的定性检测方法，适用于鲜品和干品。原理是利用254nm和365nm紫外光照射样品，观察是否产生可见蓝紫色荧光。检测步骤包括样品采集、正常光照拍照、避光紫外照射拍照，并强调照片真实性。结果以阳性或阴性表述。标准简单快速，适用于现场筛查。
Key Sentences extracted from text
本标准规定了食用菌中荧光物质的检测方法。
当254nm 和 365 nm 的紫外光照射到无色或浅色的荧光物质上时 ,该物质会因吸收紧外光的能量而发射出一定强度的可见蓝紫色荧光。
随机抽取食用菡鲜品 2.0 k8 或干品 1.0 k8,并用不含荧光物质的包装材料盛装样品 ,及时检测。
在避光条件下 ,打开254 n 和 365 mm 的紫外灯 ,观察样品表面是否有可见蓝紫色荧光。
在254 nm 和 365 nm 紫外光下 ,样品表面有可见蓝紫色荧光,则判定该样晶含有荧光物质,检测结果表述为'阳性'反之为'阴性'。
This standard specifies the detection method of fluorescent agents in mushroom.
When 254 nm and 365 nm ultraviolet light irradiates colorless or light-colored fluorescent substances, the substance will absorb the energy of ultraviolet light and emit visible blue-violet fluorescence of a certain intensity.
Randomly sample 2.0 kg of fresh mushrooms or 1.0 kg of dried mushrooms, and pack the samples in packaging materials free of fluorescent substances, and test promptly.
Under light-proof conditions, turn on the 254 nm and 365 nm UV lamps, and observe whether there is visible blue-violet fluorescence on the sample surface.
Under 254 nm and 365 nm ultraviolet light, if visible blue-violet fluorescence is present on the sample surface, the sample is judged to contain fluorescent substances, and the test result is expressed as 'positive'; otherwise, it is 'negative'.