Fungal chitosan production using xylose rich of corn stover prehydrolysate by <i>Rhizopus oryzae</i>

Yang, Lun; Li, Xin; Lai, Chenhuan; Fan, Yimin; Ouyang, Jia; Yong, Qiang

doi:10.1080/13102818.2017.1370678

Cited by 14 publications

(9 citation statements)

References 34 publications

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“…The viscosity of chitosan of M. subtilissimus (UCP 1262) (3.06 cP) was considerably higher that the of L. hyalospora (UCP 1266) (2.78 cP). Similar results were obtained in studies of the viscosity of fungal chitosan, where the viscosity of fungal chitosan ranged from 1.02 to 2.67 cP [52][53][54]. The commercial chitosan, extracted from natural shellfish exoskeleton, may have a deacetylation degree of 80.0-95.0% and viscosity of 20-500 cP [54].…”

Section: Degree Of Deacetylationsupporting

confidence: 80%

Biotechnological Strategies for Chitosan Production by Mucoralean Strains and Dimorphism Using Renewable Substrates

Souza

Galindo

Lima

et al. 2020

IJMS

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We investigated the influence of corn steep liquor (CSL) and cassava waste water (CWW) as carbon and nitrogen sources on the morphology and production of biomass and chitosan by Mucor subtilissimus UCP 1262 and Lichtheimia hyalospora UCP 1266. The highest biomass yields of 4.832 g/L (M. subtilissimus UCP 1262) and 6.345 g/L (L. hyalospora UCP 1266) were produced in assay 2 (6% CSL and 4% CWW), factorial design 22, and also favored higher chitosan production (32.471 mg/g) for M. subtilissimus. The highest chitosan production (44.91 mg/g) by L. hyalospora (UCP 1266) was obtained at the central point (4% of CWW and 6% of CSL). The statistical analysis, the higher concentration of CSL, and lower concentration of CWW significantly contributed to the growth of the strains. The FTIR bands confirmed the deacetylation degree of 80.29% and 83.61% of the chitosan produced by M. subtilissimus (UCP 1262) and L. hyalospora (UCP 1266), respectively. M. subtilissimus (UCP 1262) showed dimorphism in assay 4–6% CSL and 8% CWW and central point. L. hyalospora (UCP 1266) was optimized using a central composite rotational design, and the highest yield of chitosan (63.18 mg/g) was obtained in medium containing 8.82% CSL and 7% CWW. The experimental data suggest that the use of CSL and CWW is a promising association to chitosan production.

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Section: Degree Of Deacetylationsupporting

confidence: 80%

Biotechnological Strategies for Chitosan Production by Mucoralean Strains and Dimorphism Using Renewable Substrates

Souza

Galindo

Lima

et al. 2020

IJMS

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“…At first chitin was extracted from the mushroom and then converted to chitosan. For production of chitosan the methods described by Johney et al (2017) and Yang et al (2017) were followed with some modifications. The solubility of chitosan was tested at different concentrations of (0.2, 0.5 and 1%) acetic acid at 50°C on a magnetic stirrer.…”

Section: Methodsmentioning

confidence: 99%

Production of chitosan from Oyster mushroom for α-amylase immobilization

Kabir

Pramanik

et al. 2020

Bangladesh J. Bot.

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Experiments were carried out to produce chitosan from a locally available mushroom and to use the produced chitosan as a matrix to immobilize α-amylase. On the basis of morphological characteristics and the sequence of the internal transcribed spacer region of the nuclear rDNA, the fungal sample was identified as Pleurotus ostreatus. The average crude chitin content in the dried fruit body of P. ostreatus was 24.11%. The average yield of chitosan from P. ostreatus was 163.3 mg/g dry weight and the degree of deacetylation of the produced chitosan was 73.42%. This chitosan was used as a matrix to immobilize α-amylase. The diameter of the α-amylase immobilized beads ranged from 1839 - 2273 μm. The amount of reducing sugar produced from starch by using free α-amylase and chitosan-immobilized α-amylase was 1.710 and 1.508 mg/ml, respectively. Immobilized enzyme produced only 11.81% less reducing sugar than that of the soluble enzyme in the first cycle. However, immobilized α-amylase was easily recovered from the product and reused for two more cycles which was not possible with the same soluble free enzyme. Considering the total production of reducing sugar in three cycles, chitosan-immobilized α-amylase was found to be more productive and cost-effective than conventional soluble enzymatic reaction.

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“…Chitosan (deacetylated chitin) is biopolymer used in food, pharma cosmetics industries due to its non-toxicity, biocompatibility, biodegra antimicrobial properties [104,105]. It mainly consists of amino sugar D bounded to small amounts of N-acetyl-D-glucosamine [105]. Satari approximated the amount of chitosan in a biomass sample by measuring t D-glucosamine.…”

Section: Chitosanmentioning

confidence: 99%

Extraction, Isolation, and Purification of Value-Added Chemicals from Lignocellulosic Biomass

Chaturvedi¹,

Hulkko²,

Fredsgaard³

et al. 2022

Processes

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This review covers the operating conditions for extracting top value-added chemicals, such as levulinic acid, lactic acid, succinic acid, vanillic acid, 3-hydroxypropionic acid, xylitol, 2,5-furandicarboxylic acid, 5-hydroxymethyl furfural, chitosan, 2,3-butanediol, and xylo-oligosaccharides, from common lignocellulosic biomass. Operating principles of novel extraction methods, beyond pretreatments, such as Soxhlet extraction, ultrasound-assisted extraction, and enzymatic extraction, are also presented and reviewed. Post extraction, high-value biochemicals need to be isolated, which is achieved through a combination of one or more isolation and purification steps. The operating principles, as well as a review of isolation methods, such as membrane filtration and liquid–liquid extraction and purification using preparative chromatography, are also discussed.

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Fungal chitosan production using xylose rich of corn stover prehydrolysate by Rhizopus oryzae

Cited by 14 publications

References 34 publications

Biotechnological Strategies for Chitosan Production by Mucoralean Strains and Dimorphism Using Renewable Substrates

Biotechnological Strategies for Chitosan Production by Mucoralean Strains and Dimorphism Using Renewable Substrates

Production of chitosan from Oyster mushroom for α-amylase immobilization

Extraction, Isolation, and Purification of Value-Added Chemicals from Lignocellulosic Biomass

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