Drum fermentation reactor-based bacterial cellulose production technology

A bacterial cellulose and production process technology, applied in the direction of microorganism-based methods, bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, etc., can solve the limitations of wide application, low productivity, low output, etc. problems, to achieve the effect of wide application range, strong production capacity and convenient operation

Active Publication Date: 2011-02-23
天津实发中科百奥工业生物技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high cost caused by its low output limits its wide application.
Traditional bacterial cellulose production is mainly shallow pan fermentation, which is characterized by labor-intensive and low productivity
The experiment found that shallow dish culture was limited by the mass transfer of nutrients, and the yield was not high.

Method used

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  • Drum fermentation reactor-based bacterial cellulose production technology
  • Drum fermentation reactor-based bacterial cellulose production technology
  • Drum fermentation reactor-based bacterial cellulose production technology

Examples

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Embodiment Construction

[0035] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0036] In order to better illustrate the production process of the bacterial cellulose of the present invention, the structure of the rotary drum fermentation reactor used in the present invention is firstly described.

[0037] The structure of the drum-type bacterial cellulose fermentation reactor adopted in the bacterial cellulose production process is: mainly by the support 9, the horizontal housing, the drum 16 horizontally installed in the horizontal housing, and the drive motor (in the figure) not shown) and a scraper. The horizontal shell is composed of the upper air dust isolation shell 1 and the bottom jacket type feed liquid tank 2, which are assembled and installed through the flange connection edges 3 around them. The drum is a ...

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Abstract

The invention relates to drum fermentation reactor-based bacterial cellulose production technology, which comprises the following steps of: (1) sterilizing hollow equipment; (2) sterilizing culture medium; (3) inoculating; (4) performing rotary fermentation; (5) harvesting bacterial cellulose films; and (6) cleaning equipment. The bacterial cellulose production technology breaks through the limitation that the traditional tray culture method is performed manually and has low production efficiency, realizes continuous and mechanical work of bacterial cellulose fermentation production and film preparation, has the advantages of high treatment capacity, high efficiency, convenience, high degree of automation and the like, and can effectively improve the labor productivity, reduce the production cost and stabilize the product quality.

Description

technical field [0001] The invention belongs to the technical field of microbial fermentation, and in particular relates to a bacterial cellulose production process based on a drum type fermentation reactor. Background technique [0002] Cellulose is the most abundant natural polymer on the earth. It exists widely in plants such as trees and cotton. The cellulose produced by plants reaches hundreds of millions of tons every year. However, the synthesis of cellulose is not a unique function of plants. Some bacteria also produce extracellular cellulose more efficiently than plants in a heterotrophic way. We call this bacterial-derived cellulose "bacterial cellulose". Bacterial synthetic cellulose was first reported by Brown in 1886. It is a layer of white fibrous substance formed by Acetobacter xylinum on the surface of the medium during static culture. Bacterial cellulose production was later also found in many Gram-negative bacteria such as Agrobacterium, Pseudomonas tumefa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/34C12M1/02C12M1/38C12M1/00C12R1/02C12M1/36C12P19/04
CPCC12M33/00C12M41/40C12M25/06C12M23/04C12M41/12C12M33/02C12M27/10C12M27/14
Inventor 赵琼胡娅君王祥河
Owner 天津实发中科百奥工业生物技术有限公司
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