Research Progress in Production of Bacterial Cellulose by Aeration and Agitation Culture and Its Application as a New Industrial Material

Yoshinaga, Fumihiro; Tonouchi, Naoto; Watanabe, Kunihiko

doi:10.1271/bbb.61.219

Cited by 211 publications

(98 citation statements)

References 13 publications

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“…1,2) Acetobacter xylinum, which is a producer of BC, 3,4) also accumulates a water-soluble polysaccharide called acetan, 5) the structure of which is similar to that of xanthan. 6,7) BC is an insoluble b-1,4-glucan, and acetan consists of glucose, mannose, glucuronic acid, and rhamnose in the proportions of 4:1:1:1.…”

mentioning

confidence: 99%

Effects of Acetan on Production of Bacterial Cellulose by Acetobacter xylinum

Ishida

Sugano

Nakai

et al. 2002

Bioscience, Biotechnology, and Biochemistry

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Acetan is a water-soluble polysaccharide produced by a bacterial cellulose (BC) producer, Acetobacter xylinum. An acetan-nonproducing mutant, EP1, was generated from wild-type A. xylinum BPR2001 by the disruption of aceA, which may act to catalyze theˆrst step of the acetan biosynthetic pathway in this bacterium. EP1 produced less BC than the wild-type strain. However, when EP1 was cultured in a medium containing acetan, BC production was stimulated and theˆnal yield of BC was equivalent to that of BPR2001. The culture broth containing acetan was more viscous and the free cell number was higher than that of the broth without the polysaccharide, so acetan may hinder the coagulation of BC in the broth. The addition of 1.5 g W l agar also increased BC production; we concluded that acetan and BC syntheses were not directly related on the genetic level.

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mentioning

confidence: 99%

Effects of Acetan on Production of Bacterial Cellulose by Acetobacter xylinum

Ishida

Sugano

Nakai

et al. 2002

Bioscience, Biotechnology, and Biochemistry

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“…Industrially, glucose 6 phosphate dehydrogenase is important in the production of bacterial cellulose in organisms like Acetobacter spp [150]. This bacterial cellulose is a gelatinous membrane that is produced at the surface of liquid culture by this organism.…”

Section: Cellulose Productionmentioning

confidence: 99%

“…This bacterial cellulose is a gelatinous membrane that is produced at the surface of liquid culture by this organism. It could be eaten as "Nata de Coco" or used as a thickener, disperser, stabilizer, emulsifier, in paper, artificial skin, medical supplies and for cosmetics [150]. Thus, the higher activity of this enzyme in Acetabacter spp, the higher the yield of the bacteria cellulose.…”

Section: Cellulose Productionmentioning

confidence: 99%

Updates on Glucose 6-Phosphate Dehydrogenase (G6PD): From Prokaryotes to Human

2016

IJSR

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Glucose 6-phosphate dehydrogenase (G6PD) is the rate determining enzyme that catalyzes the first step in pentose phosphate pathway (PPP) which produces NADPH that serves as reducing agent for reductive biosynthetic reactions such as steroids, fatty acids and nucleotides syntheses. Been ubiquitous, it has been found in wide range of organisms, ranging from prokaryotic organisms to even higher animals like human. Numerous G6PD isoenzymes have been isolated, purified and well characterised. However, obtained information such as its kinetic parameters and biological properties have not been judiciously appropriated for biotechnological/medical applications. This review thus concisely showcases G6PD, focusing on some sources where it has been isolated, purified and characterized, physicochemical/biochemical properties, the benefits and adverse effects its evolution may confer, and the possible biotechnological applications/prospects for the enzyme.

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“…Bacterial CNCs have very high crystallinity (~89%). Bacterial CNCs is allegedly a very pure form of cellulose with high weight-average molecular weight, excellent physical and mechanical properties such as high porosity and elastic modulus (Yoshinaga et al, 1997;Klemm et al, 2011;Lavoine et al, 2012). One of the main advantages of using bacterial cells for producing cellulose is the possibility of controlling microfibril production and crystallization through culture conditions, as shown by Chawla et al (2008).…”

Section: Bacteriamentioning

confidence: 99%

Cellulose Nanocrystals as Advanced "Green" Materials for Biological and Biomedical Engineering

Sinha¹,

Martin²,

Lim³

et al. 2015

Journal of Biosystems Engineering

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Background: Cellulose is a ubiquitous, renewable and environmentally friendly biopolymer, which has high promise to fulfil the rising demand for sustainable and biocompatible materials. Particularly, the recent progress in the synthesis of highly crystalline cellulose-based nanoscale biomaterials, namely cellulose nanocrystals (CNCs), draws significant attention from many research communities, ranging from bioresource engineering, to materials science and engineering, to biological and biomedical engineering to bionanotechnology. The feasibility of harnessing CNCs' unique biophysicochemical properties has inspired their basic and applied research, offering much promise for new biomaterials with diverse advanced functionalities. Purpose: This review focuses on vital issues and topics on the recent advances in CNC-based biomaterials with potential, in particular, for bionanotechnology and biological and biomedical engineering. The challenges and limitations of CNC technology are discussed as well as potential strategies to overcome them, providing an essential source of information in the exploration of possible and futuristic applications of the CNC-based functional "green" nanomaterials. Conclusion: CNCs offer exciting possibilities for advanced "green" nanomaterials, driving innovative research and development in a wide range of fields, including biological and biomedical engineering.

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Research Progress in Production of Bacterial Cellulose by Aeration and Agitation Culture and Its Application as a New Industrial Material

Cited by 211 publications

References 13 publications

Effects of Acetan on Production of Bacterial Cellulose by Acetobacter xylinum

Effects of Acetan on Production of Bacterial Cellulose by Acetobacter xylinum

Updates on Glucose 6-Phosphate Dehydrogenase (G6PD): From Prokaryotes to Human

Cellulose Nanocrystals as Advanced "Green" Materials for Biological and Biomedical Engineering

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