A simple and rapid method for producing phb/bacterial cellulose composites

Abstract

The invention belongs to the field of biological materials, and in particular relates to a simple and fast method for producing PHB / bacterial cellulose composite materials, comprising: 1) cultivation of Ralstonia eutropha bacterial liquid; 2) cultivation of Gluconacetobacter xylinus bacterial liquid: 3) taking Ralstonia eutropha bacteria The solution is added to the basic culture solution containing Gluconacetobacter xylinus cells, dynamic culture and static culture are carried out, the bacteria solution is collected, and the bacterial cellulose / PHB composite product is extracted. The method of the invention can produce the required composite material by directly adding an appropriate amount of Ralstonia eutropha bacterial liquid in the cultivation process of Gluconacetobacter xylinus, and the method has the advantages of simple operation, low cost, mild condition, environment friendly and the like.

Description

technical field

[0001] The invention belongs to the field of biological materials, in particular to a method for simply and rapidly producing PHB / bacterial cellulose composite materials. Background technique

[0002] The development of new materials is a priority scientific field in the 21st century. Bacterial cellulose (BC) is one of the research hotspots of new biomaterials. Using microbial fermentation to produce bacterial cellulose and applying it to medicine has broad application prospects in medicine, papermaking, biomedical engineering and food industry. Among them, the bacterial cellulose produced by Acetobacter is different from the cellulose widely existing in nature, and it has the following unique properties: (1) cellulose has high purity, high crystallinity and high degree of overlap, and exists as a single fiber, so Very advantageous in the preparation of some microfiber products. The preparation of traditional microfiber products from natural fibers require...

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