red pigment

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  • Study on the Stability of Edible Roselle Red Pigment (2)

    2021-05-01

    Test on affecting the stability of Hibiscus red pigmentIn China, Food Additive Standards Technical Committee stipulates that absorbancy is used to reflect the quality of pigments. In this article, 721 spectrophotometer is used to determine the absorbance of the pigment solution.1. pH test: take 100m Read More

  • Study on the Stability of Edible Roselle Red Pigment (3)

    2021-05-05

    Study on the Stability of Edible Roselle Red PigmentWith the development of science and technology, it is a general trend that synthetic pigments are gradually replaced by natural pigments. It's of great significance to develop the safe and reliable natural pigments to guarantee people's health. Ros Read More

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