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Identification of gallnut ellagic acid and pomegranate ellagic acid
At present, ellagic acid sold in the market includes gallnut ellagic acid and pomegranate ellagic acid, mainly gallnut ellagic acid. How to distinguish gallnut ellagic acid from pomegranate ellagic acid has been a difficult problem in the industry for many years. In terms of appearance, gallnut ellagic acid is different from pomegranate ellagic acid. Gallnut ellagic acid is grayish brown and pomegranate ellagic acid is light yellow or light yellow powder. In order to thoroughly understand the difference between gallnut ellagic acid and pomegranate ellagic acid, the company purchased product samples from many domestic companies and capsule products from GNC and other companies in the United States through different channels, and worked together with scientific research institutions such as Beijing University of chemical technology, Tianjin University and Chinese Academy of Sciences to explore a complete set of testing methods after more than one year of hard work and repeated tests, The characteristic differences between gallnut ellagic acid and pomegranate ellagic acid were found out. The company authorized the third-party appraisal organization Hebei Zhide inspection and Testing Co., Ltd. to conduct quantitative testing, which effectively verified the accuracy and reliability of our method.
Gallnut ellagic acid characteristic impurity A is a kind of (cardiotonic and neuroleptic) (toxic substance). Ingestion will cause strong irritation, such as stomatitis, ulcer, vomiting and diarrhea. In severe cases, toxic nephropathy can occur. The LD50 of gallnut ellagic acid characteristic impurity a on rabbits was 6.7mg/kg and had a slight accumulation effect. LD50 (median lethal dose) refers to the minimum number of bacteria or toxin required to kill half of an animal of a certain weight or age through a specified route of infection within a specified time. The lower the LD50 value, the stronger the toxicity of foreign chemicals; On the contrary, the greater the LD50 value, the lower the toxicity. According to the five level standard LD50 recommended by the World Health Organization, 5 ~ 15 belong to medium toxicity.
Hebei Zhide inspection and Testing Co., Ltd., a national high-tech enterprise, is the only authorized third-party testing organization of our company. It has the qualification accreditation (CMA) certificate of inspection and testing institutions issued by Hebei market supervision administration, CNAs certificate issued by the national conformity assessment committee, assessment certificate of agricultural product quality and safety testing institutions (catl), and has passed the ISO 9001 quality management system certification.
The company specializes in the testing of food, health food, food additives, edible agricultural products, water quality, feed, public places, etc. it is a third-party inspection and testing organization with independent legal personality. Accept the mail test of ellagic acid samples. The qualitative raw materials are gallnut or pomegranate, and issue the test report.
Company address: rizhongtian science and Technology Park, Tianshan Street, high tech Zone, Shijiazhuang
Company website: http://www.zhidejiance.com/
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2020/8/24
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