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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Study of Bacillus spp. strains used in the production of gamma-polyglutamic acid in submerged culture

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Author(s):
Campos, V [1] ; Pimentel Filho, N. J. [2] ; Medeiros, T. A. M. [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ, Sci & Technol Inst Sorocaba ICTS, Sao Paulo - Brazil
[2] Univ Fed Sao Carlos, Ctr Nat Sci, Buri, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: INTERNATIONAL FOOD RESEARCH JOURNAL; v. 27, n. 3, p. 427-434, JUN 2020.
Web of Science Citations: 0
Abstract

Gamma-polyglutamic (gamma-polyglutamic) acid has received considerable attention for environmental applications. gamma-polyglutamic acid can be produced by fermenting soybeans and by submerged culture using the bacterium Bacillus subtilis. Although it is practically impossible to chemically synthesise gamma-polyglutamic acid, this biopolymer can be obtained through microbial culture. The microorganism most commonly used in the production of gamma-polyglutamic acid, among other strains, is B. subtilis, which has been investigated for the production of biopolymers. The purpose of the present work was to evaluate the production of gamma-polyglutamic acid from submerged culture of different Bacillus strains. The evaluation of the efficiency of Bacillus strains in producing gamma-polyglutamic acid indicated that B. licheniformis produced a higher volume of the biopolymer than B. subtilis. The highest gamma-polyglutamic acid production by B. licheniformis was 398.1 mg L-1. B. licheniformis was found to be an L-glutamic acid-independent bacterium for the production of gamma-polyglutamic acid. B. licheniformis and B. subtilis growth and gamma-polyglutamic acid production rates were also influenced by the culture media. (c) All Rights Reserved (AU)

FAPESP's process: 15/02650-8 - Production and environmental application of y-polyglutamic acid by cultivation of B. subtilis in soy substrate
Grantee:Valquiria de Campos
Support Opportunities: Regular Research Grants