Abstract: The invention relates to a plant essential oil amino acid composition and a preparation method therefor. The composition of the present invention is a composition containing a plant essential oil and amino acids. The composition is obtained by mixing the plant essential oil with amino acids, the plant essential oil being selectively one or two of thymol and carvacrol. The composition of the present invention has a significantly higher melting point and lower volatility, thus significantly improving stability. When being used as an animal growth-promoting feed additive, the composition of the present invention has better palatability and lower death rate.

Abstract: The present invention relates to a co-crystal of coenzyme QH and nicotinamide, a preparation method therefor and the use thereof. Compared with the existing coenzyme QH, the co-crystal has a higher melting point and superior stability. The preparation method for the co-crystal of coenzyme QH is simple, easy to control and good in terms of reproducibility. The present invention greatly improves the use convenience of coenzyme QH, saves costs during storage, transportation and use, and broadens the application range of coenzyme QH.

Abstract: The present invention relates to crystalline forms of pyrroloquinoline quinone disodium salt. The present invention provides crystalline Form A and crystalline Form B of pyrroloquinoline quinone disodium salt, and the methods and uses for the preparation thereof. The X-ray powder diffraction patterns of crystalline Form A and crystalline Form B are as shown by FIG. 1 and FIG. 5, respectively. The crystalline forms of the present invention have low moisture absorption and high stability, as well as excellent use and storage performances.