Preservative for industrial xanthan gum and preparation method of preservative

The invention discloses a preservative for industrial xanthan gum and a preparation method of the preservative, and the preservative is prepared by the following steps: respectively weighing the following components in percentage by weight: 1-5% of potassium sorbate, 10%-20% of BIT, 0.5-5% of IPBC and 0.1-1% of ethylenediamine tetraacetic acid calcium disodium salt, adding laboratory third-level water, and fully conducting stirring and dissolving to obtain the preservative for industrial xanthan gum. The preservative is small in use amount and long in shelf life, growth and reproduction of bacteria, molds and saccharomycetes in the xanthan gum solution can be effectively inhibited, and the xanthan gum solution added with the preservative can be widely applied to coatings, putty powder, multicolor paint, liquid fertilizers, pesticides and the like. 本发明公开了一种用于工业级黄原胶的防腐剂及其制备方法，通过如下步骤制备而成，按配方分别称取山梨酸钾1-5%、BIT 10-20%、IPBC 0.5-5%、乙二胺四乙酸钙二钠盐0.1-1%，加入实验室三级水，充分搅拌溶解，即得到一种工业级黄原胶的防腐剂。本发明防腐剂使用量少，保质期长，能够有效抑制黄原胶溶液中细菌、霉菌、酵母菌的