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Showing 1 to 7 of 7 for “"γ-PGA"”.
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The role of γ-polyglutamic acid in a circular economy: cost-effective production and wide-ranging applications of a bio-derived, biodegradable, and nonimmunogenic biomaterial
… constructs. Poly-γ-glutamic acid (γ-PGA) is an anionic pseudo polypeptide produced by several microorganisms, especially members of the Bacillus species. γ-PGA is synthesised through several enzymes and complexes which racemise and polymerise L- glutamic acid or D- glutamic acid. This …
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Bacterial poly-gamma-Glutamic Acid (y-PGA) - a promising biosorbent of heavy metals
Poly-γ-glutamic acid (γ-PGA) is a biopolymer made up of repeating units of L-glutamic acid, D-glutamic acid or both. γ-PGA is water soluble, non-toxic and biodegradable, and can be used safely in a variety of applications that are increasing rapidly. This study investigated the production of HMW …
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Bacterial production of poly-γ-glutamic acid and evaluation of its effect on the viability of probiotic microorganisms
Poly-γ-glutamic acid (γ-PGA) is a naturally occurring biopolymer made up of repeating units of glutamic acid and can be potentially used for multiple applications. This study compared the production of γ-PGA by eight bacteria (B. subtilis 23856, B. subtilis 23857, B. subtilis 23858 B. subtilis …
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Evaluation of bacterial polymers as protective agents for sensitive probiotic bacteria
… of two biopolymers poly-gamma-glutamic acid (γ-PGA) and bacterial cellulose (BC) on probiotics during freeze drying and during exposure to simulated intestinal juices and bile salts. The antibacterial property of Bifidobacterium strains was also investigated against four pathogenic bacteria. …
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STUDIES ON NATURAL AND EDIBLE BIOPOLYMERS. ISOLATION, CHARACTERIZATION AND CHEMICAL MODIFICATIONS OF POLY(Γ-GLUTAMIC ACID) (Γ-PGA) FROM BACILLUS SUBTILIS
Poly(γ-glutamic acid) (γ-PGA) is a unusual anionic, water-soluble homopolyamide composed of D- and/or L-glutamic acid monomers, connected by amide bonds between α-amino and γ-carboxyl groups, mainly produced by Gram-positive bacteria of the genus Bacillus. γ-PGA is hygroscopic and water-soluble; in …
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Dual biopolymer production and separation from cultures of Bacillus spp.
… the dual production of biopolymers, P(3HB) and γ-PGA from cheap substrates with the view to lay grounds for a feasible, innovative, low cost production process. A common denominator between the two biopolymers focused in this thesis, (P(3HB) and γ-PGA), was that they both could be produced by …
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Selection of bacterial species from wastewater for potential production of poly (γ-glutamic acid): isolation, characterisation and growth kinetics
… for the production of poly (γ-glutamic acid) (γPGA). γ-PGA, a polymer of D- and L-glutamic acid monomers connected by amide linkages, is a naturally occurring biopolymer, synthesized by a variety of micro-organisms. Most commonly, γ-PGA production has been studied in Bacillus species, such as B. …