Pyraclostrobin microcapsule based on sodium alginate and preparation method

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United States of America Patent

PATENT NO 11865506
APP PUB NO 20230330614A1
SERIAL NO

18131871

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Abstract

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The present disclosure provides a pyraclostrobin microcapsule based on sodium alginate, which is prepared by mixing pyraclostrobin original drug dissolved in ethyl acetate, 1% aqueous sodium alginate solution, and 5% aqueous calcium carbonate solution at 25° C., and mixing the mixed solution with liquid paraffin containing 10% emulsifier A-110, maintaining a shear rate of 1000 r/min to emulsify for 10 min; using 87.5 mmol/L glacial acetic acid to reduce the pH of the mixed phase, such that the cross-linking reaction between ions can be formed into microcapsules; finally using pH 4.5 acetate buffer to wash and separate the microcapsule slurry, and then centrifuging and freeze-drying to prepare the pyraclostrobin SA microcapsules. The microcapsules prepared by the present disclosure have excellent formulation performance and can be used for the control of Fusarium pseudograminearum.

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Patent Owner(s)

Patent OwnerAddress
ANHUI AGRICULTURAL UNIVERSITY230000 NO 130 CHANGJIANG WEST ROAD HEFEI CITY ANHUI PROVINCE HEFEI CITY ANHUI PROVINCE 230000
PLANT PROTECTION AND AGRO-PRODUCTS SAFETY ANHUI ACADEMY OF AGRICULTURAL SCIENCESNO 40 NONGKE SOUTH ROAD HEFEI CITY ANHUI PROVINCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Li Hefei, CN 997 9317
Chi, Yu Hefei, CN 4 0
Ren, Xuexiang Hefei, CN 3 0
Su, Xianyan Hefei, CN 4 0
Wang, Mengqiu Hefei, CN 33 332
Ye, Zhenghe Hefei, CN 3 0
Zhang, Chengqi Hefei, CN 1 0

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