Preparation Method for Humic Acid Type Fruit Bagging-free Film Agent and Application thereof
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United States of America Patent
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Aug 25, 2022
app pub date -
Dec 29, 2021
filing date -
Feb 25, 2021
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Abstract
A humic acid type fruit bagging-free film agent and an application thereof are provided. The humic acid type fruit bagging-free film agent is prepared by: dissolving sodium alginate into water, adding TWEEN-20 and SPAN-20 after stirring evenly, and stirring for mixing to form sodium alginate solution; dissolving humic acid potassium into water, adding glycerin then mixing to form humic acid potassium solution; stirring the sodium alginate solution and the humic acid potassium solution evenly to form agent A; and dissolving calcium chloride into water to obtain agent B. When in use, the agent A is sprayed onto a fruit surface, and then agent B is sprayed. It can not only be antibacterial, anti- freezing and pest-resistant, but also shorten film-forming duration and have better film-forming property. Shading performance is improved, and problems of rough fruit surface, serious rust and dim color caused by using paper bagging can be solved.
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