Quality parameter testing of health food

This standard specifies the use of spectrophotometry to determine the content of total sugar (measured by glucose) in red ginseng. This standard is applicable to the determination of total sugar content in red ginseng. The linear range of this standard method is 0.012 mg~1.8 mg. The quantitative limit of this standard method is 1.2%. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T6682 Specification and Test Methods for Analytical Laboratory Water - Principle 3: The water-soluble sugars and water-soluble polysaccharides in the sample are hydrolyzed by hydrochloric acid and converted into reducing sugars. After co heating with 3,5-dinitrosalicylic acid, they are reduced to brownish red amino compounds. The absorbance is measured at a wavelength of 520 nm, and the absorbance value is directly proportional to the content of reducing sugars

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