Method for purifying gibberellin GA3 and preparing water-soluble pulvis of gibberellin GA3

Abstract

The invention provides a method for purifying gibberellin GA3 and preparing water-soluble pulvis of gibberellin GA3. The invention brings forward control of purity and particle size of gibberellin GA3 and utilization of complex formulation to prepare water-soluble pulvis of gibberellin GA3. According to the invention, a mixed solvent of tetrahydrofuran / ethyl acetate / water is used for recrystallization of a crude product of gibberellin GA3, which enables a reasonable process and simple operation and enables purity of the product in one operation to be more than 98.5% and yield of the product to be more than 90%; the technology of complex formulation is employed and gibberellin GA3 is made to be rapidly dissolved in a water phase and to form a stable disperse phase through using of accessories like an acidic buffer reagent, a dispersant and a surfactant, thereby enabling gibberellin GA3 to be easier to store and transport and more convenient to use and drug effects and the utilization rate to be improved.

Description

technical field

[0001] The invention relates to a plant growth regulator gibberellin GA 3 Purification and compounding to form gibberellin GA 3 Water-soluble powder method. Background technique

[0002] Gibberellin is a broad-spectrum plant growth regulator and one of the five major plant hormones. It is mainly used to promote the formation of fruit setting or seedless fruit of melon and fruit plants, promote the growth of vegetative bodies of leafy vegetable plants, break the dormancy of plant seeds, promote seed development, delay the aging of fruits, and play a role in preserving freshness. When producing hybrid rice seeds, it can adjust the flowering period, promote the earing of the parents of the seed production, increase the number of effective ears and grains, and significantly increase the seed setting rate. From the perspective of physiological effects and application effects, gibberellin, as a plant growth regulator, is one of the GA 3 produced a significant e...