On the convenient method for glucosamine estimation in koji.

Sakurai, Yonekichi; LEE, Tae Ho; Shiota, Hideo

doi:10.1271/bbb1961.41.619

Cited by 78 publications

(27 citation statements)

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“…The SSC was conducted with 1%, 2%, 3% and 4% of the respective carbon and nitrogen sources. The glucosamine based biomass estimation (Sakurai et al, 1977) was used to extrapolate the biomass, since direct estimation of biomass is not possible in SSC.…”

Section: Optimization Of Biosurfactant Production Under Ssc Conditionsmentioning

confidence: 99%

Optimization and characterization of a new lipopeptide biosurfactant produced by marine Brevibacterium aureum MSA13 in solid state culture

Kiran¹,

Thomas²,

Selvin³

et al. 2010

Bioresource Technology

217

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a b s t r a c tThe biosurfactant production of a marine actinobacterium Brevibacterium aureum MSA13 was optimized using industrial and agro-industrial solid waste residues as substrates in solid state culture (SSC). Based on the optimization experiments, the biosurfactant production by MSA13 was increased to threefold over the original isolate under SSC conditions with pre-treated molasses as substrate and olive oil, acrylamide, FeCl 3 and inoculums size as critical control factors. The strain B. aureum MSA13 produced a new lipopeptide biosurfactant with a hydrophobic moiety of octadecanoic acid methyl ester and a peptide part predicted as a short sequence of four amino acids including pro-leu-gly-gly. The biosurfactant produced by the marine actinobacterium MSA13 can be used for the microbially enhanced oil recovery processes in the marine environments.

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Section: Optimization Of Biosurfactant Production Under Ssc Conditionsmentioning

confidence: 99%

Optimization and characterization of a new lipopeptide biosurfactant produced by marine Brevibacterium aureum MSA13 in solid state culture

Kiran¹,

Thomas²,

Selvin³

et al. 2010

Bioresource Technology

217

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“…The biomass was estimated by determining the N-acetyl glucosamine released from the cell wall of the actinomycete by acid hydrolysis (Sakurai et al 1977) and was expressed as milligram of glucosamine per gram dry fermented substrate.…”

Section: Biomass Estimationmentioning

confidence: 99%

Evaluation of α-galactosidase biosynthesis by Streptomyces griseoloalbus in solid-state fermentation using response surface methodology

Anisha

Sukumaran

Prema

2008

Lett Appl Microbiol

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Aim: The present study was aimed at evaluating the effects of the three crucial factors, galactose concentration, inoculum size and moisture content, on α‐galactosidase production by the filamentous actinobacterium Streptomyces griseoloalbus in solid‐state fermentation. Methods and Results: Central Composite design was adopted to derive a statistical model for the optimization of fermentation conditions. Maximum α‐galactosidase yield (117 U g–1 of dry fermented substrate) was obtained when soya bean flour supplemented with 1·5% galactose and with initial moisture content of 40% was inoculated with 1·9 × 106 CFU g−1 initial dry substrate. Conclusions: The model was valid and could result in considerably enhanced enzyme yield. Significance and Impact of the Study: The results indicated a cost effective method for the production of α‐galactosidase using soya bean flour. This is the first report on exploitation of the potential of filamentous bacterium for the production of α‐galactosidase, an enzyme having versatile applications.

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“…Biomass estimation was carried out by determining the Nacetyl glucosamine content of the cell wall (17) and it was expressed as mg of glucosamine/g dry fermented matter.…”

Section: Estimation Of Biomassmentioning

confidence: 99%

Novel process for the simultaneous extraction and degumming of banana fibers under solid-state cultivation

Jacob

Prema

2008

Braz. J. Microbiol.

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Various process parameters for the production of polygalacturonase by Streptomyces lydicus under solidstate fermentation were optimized. The optimum particle size of wheat bran for polygalacturonase production was in the range of 500-1000 µm. Initial moisture content of 70% was found to be the optimum for enzyme production. The most suitable inoculum size was 1.25 x 10 5 CFU/mL and the optimum incubation temperature was 30ºC. Addition of carbon sources resulted in 37% increase in enzyme yield (425 U/g), whereas no significant enhancement was obtained on nitrogen supplementation. Maximum enzyme yield was recorded at 72 h. When compared to the initial production medium (108.5 U/g), the enzyme yield was 3.9 fold after optimization. Solid-state fermentation was effectively employed to develop a novel process for the simultaneous extraction and degumming of banana fibers. Streptomyces lydicus was allowed to grow on wheat bran medium in which banana leaf sheath pieces were incorporated and the fiber bundles were separated after a two-step fermentative process.

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On the convenient method for glucosamine estimation in koji.

Cited by 78 publications

References 0 publications

Optimization and characterization of a new lipopeptide biosurfactant produced by marine Brevibacterium aureum MSA13 in solid state culture

Optimization and characterization of a new lipopeptide biosurfactant produced by marine Brevibacterium aureum MSA13 in solid state culture

Evaluation of α-galactosidase biosynthesis by Streptomyces griseoloalbus in solid-state fermentation using response surface methodology

Novel process for the simultaneous extraction and degumming of banana fibers under solid-state cultivation

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