6 brand of donkey-hide gelatin detection Beijing Tong Ren Tong material Poor

In recent years, the main "blood bleeding, nourishing Yin Nourishing Beauty" effect of donkey-hide gelatin products by many consumers, especially female consumers. And the more market expansion, donkey-hide-gelatin product prices also rose frequently, Beijing Tongren Temple, Buddhist Tzu Chi, Taiji and other pharmaceutical companies also enter the donkey-hide gelatin market. Brand more inevitably confused flower, the market is also inevitable after the expansion of the mixed, consumer choice has become difficult. To understand the true and false brand of donkey-hide gelatin and quality, this March, "consumer Report" on Donga, Fu Licensing, Beijing Tongren Temple, Taiji, Buddha-Tzu, rehabilitation and other 6 brands of 8 donkey-hide gelatin products tested contrast. The test results of the authoritative third party testing organization show that, on the "L-proline", an important index representing the quality of donkey-hide gelatin, the donkey-hide gelatin samples of Beijing Tongren temple have not reached the national standard-this means that the quality of its raw materials is relatively poor. Beijing Ren Tong Tong An index of the main raw material is donkey skin, the main ingredient is protein, according to Chinese medicine theory, with blood hemostatic effect. The quality of donkey skin also determines the quality of donkey-hide gelatin, however, in the market, by inferior leather or other animal skin posing as donkey skin of the fake donkey-hide-gelatin event appears. In order to verify the quality of mainstream donkey-hide gelatin products, this "consumer report" submitted 6 brands of 8 pieces of donkey-hide gelatin block products, testing the "four amino acid content" and "identification" two quality projects. The choice of "four amino acid content" is according to the 2010 new edition of "Chinese Pharmacopoeia" stipulates: The contents of L-hydroxyproline, glycine, L-proline, alanine, four kinds of amino acids in gelatin are not less than 8%, 18%, 10%, 7% respectively. The content of these kinds of amino acids in donkey skin is higher than that of most animal skins, which can reflect the quality of donkey skin and donkey-hide gelatin. Rae, an associate professor at pharmaceutical School of Medicine, told reporters. The Pharmaceutical Analysis Department of the School of Medicine, Sun Yat-sen University Xu Neu Jun also explained that these four kinds of amino acids are the most in the hydrolysis products of donkey-hide gelatin, and the content of these four kinds of amino acids can be determined to enhance the controllability of the quality standard of donkey-hide gelatin. According to the results of this survey, Beijing Tongren Temple's "L-proline" content of 9.5%, did not reach the national standard 10%, while the other 7 of the indicators are qualified. L-Hydroxyproline is a specific amino acid in collagen, and its content is fixed in the proportion of collagen protein. "From the test results, Beijing Tong Ren Tong Donkey-hide gelatin, can be said that the product unqualified, raw material quality is poor, but not sure its raw materials have problems (adulterated or counterfeit), because the use of poor quality donkey skin boil gum will also appear content unqualified." "Xu Neu Jun analysis. Professor Hu Xiaopeng of the School of Medicine, Sun Yat-sen University, made a statistical analysis of this data, and said that the "L-proline" value of Beijing Tong Ren Tang-Jiao was no significant difference from the national standard value. "Consumer Report" reporters on the submission of the product batch number and test results contact Beijing Tong Ren Tong Technology Development Co., Ltd. Pharmaceutical Factory Quality Management Department of Jin Chunlin minister, she said "the batch of donkey-hide gelatin productsEnterprise Recheck qualified. "Qualified Donkey-hide-gelatin, does not mean that the skin of the" "Consumer Report" donkey-hide-gelatin quality testing also includes "identification" project, in order to tell consumers whether the donkey-hide gelatin used in the skin, rather than the skin of other animals. "The identification of donkey-hide gelatin is based on glycine as a standard product." Glycine has the highest content in donkey-hide gelatin, so long as it contains enough glycine, the positive result can be found by this method. "Liu De, professor of medicine at Sun Yat-sen University, explains. This newspaper 8 of the "identification" of gelatin products, the results show positive, that is, meet the standard requirements. However, a number of experts have told reporters that even if qualified, can not be sure that donkey-hide gelatin is the skin boil. "For the test of donkey-hide gelatin, the current national pharmacopoeia provisions of the inspection items have characteristics, identification, moisture, heavy metals and harmful objects, water insoluble, content determination." The standard is for donkey skin production of donkey-hide gelatin formulated. For horse, cowhide, pigskin and so on, as long as the process required to deal with clean, these indicators may be qualified, and the standard is not limited. "he said. Xu Neu Jun also pointed out that glycine is not a specific property, including gelatin, animal skin contains glycine, with glycine thin-layer chromatography as the identification of donkey-hide gelatin, can not be separated from other animal glue. Since the current standards can not be sure that donkey-hide gelatin is all donkey skin, whether there is a technical solution? A number of experts said that there have been studies to identify the authenticity of donkey-hide gelatin through the identification of the characteristic DNA and characteristic peptide. Why does the current Chinese pharmacopoeia not use it as the "distinguishing" method of donkey-hide gelatin? "Although this method is technically not a problem, it can be accurately identified, but this detection technology requires high, expensive equipment." Of course, with the technological progress, now it seems that the high-tech things, after the popularization of the standard in the adoption of the inevitable. "Xu Neu Jun said.