Influence of the heavy metals on chitosan production by <i>Absidia corymbifera</i> UCP 0134

Cardoso, Adriana Dias; Marques, Arthur Nobre; Marinho, Petrusk Homero Campos; Shiosaki, Ricardo Kenji; Campos-Takaki, Galba Maria de

doi:10.1142/9789814322119_0039

Cited by 4 publications

(6 citation statements)

References 13 publications

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“…An increase in pH from 6.0 (beginning of fermentation) to 7.1–6.2 was observed in M. subtilissimus (UCP 1262) cultivation, a result similar to that of [ 23 , 33 , 34 ]. Lower pH resulted in higher biomass yields, in line with that described by [ 23 ].…”

Section: Resultssupporting

confidence: 68%

“…CSL is a carbohydrate-and amino acid-rich residue that favors the growth of filamentous and unicellular fungi [23,31,32]. An increase in pH from 6.0 (beginning of fermentation) to 7.1-6.2 was observed in M. subtilissimus (UCP 1262) cultivation, a result similar to that of [23,33,34]. Lower pH resulted in higher biomass yields, in line with that described by [23].…”

Section: Effect Of Substrates On Biomass and Chitosan Production By Msupporting

confidence: 55%

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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: Resultssupporting

confidence: 68%

Section: Effect Of Substrates On Biomass and Chitosan Production By Msupporting

confidence: 55%

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

Souza

Galindo

Lima

et al. 2020

IJMS

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“…The nitrogen source influenced the increase in biomass and chitosan production by Aspergillus niger grown in soybean meal and canola oil [10], and the authors obtained a biomass and chitosan yields of 11.0 g/L and 120.5 mg/g, respectively. However, studies [6] testing the ability of Absidia corymbifera grown in submerged fermentation using corn steep liquor (6%) as the only source of carbon and nitrogen, and heavy metals (Cu + and Zn + ) obtained yields of 6.97 g/L of biomass and 67.29 mg/g of chitosan. This yield of chitosan is higher than that obtained in this experiment due to the influence of the heavy metals on the enzymatic action of chitin deacetylase, according to the authors.…”

Section: Resultsmentioning

confidence: 99%

“…Chitin and chitosan have versatile properties that allow the use of these polymers in different research fields such as those of the medical, pharmaceutical and environmental areas [3] and this has economic advantages. Recent studies showed that several fungal species have been used as alternative sources for chitin and chitosan production [5,6]. The use of fungi to obtain chitin and chitosan has shown great advantages such as the extraction of co-occurring biopolymers, regardless of seasonal factors, and its being a simple and economical process that results in reductions of the time and cost required for extraction.…”

Section: Introductionmentioning

confidence: 99%

Microbial Enhance of Chitosan Production by Rhizopus arrhizus Using Agroindustrial Substrates

et al. 2012

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This study investigated the potential of Rhizopus arrhizus UCP 402 for producing chitosan using corn steep liquor and honey as agroindustrial nitrogen and carbon sources. A complete factorial design was used to assess the improved biomass and chitosan production. The results were evaluated using Pareto charts (Statistica 7.0 software). The chitosan obtained was characterized by X-ray diffraction. The cristallinity index (I C ), and infrared spectroscopy (FTIR) were used to evaluate the degree of deacetylation (DD %). The morphological aspects of the R. arrhizus were evaluated by measuring the diameter of the colonies by light microscopy. The results obtained showed higher biomass and chitosan yields (20.61 g/L and 29.3 mg/g), respectively, in the selected assays. The characterization of the macromolecular arrangement of chitosan showed a crystallinity index compatible with the literature, and the infrared peaks confirmed a degree of 86%. The experimental data obtained suggest that adding honey to corn steep liquor is a promising way to improve microbiological chitosan production.

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“…[50] The effect of heavy metals (Cu+ and Zn+) on chitosan production from other fungal species, Absidia corymbifera grown in corn steep liquor was tested by other authors and the obtained chitosan yield was 67.29 mg/g. [51] In the study of P. Pochanavanich et al, Potato Dextrose Broth was used as culture media and chitosan yield was found to be 107 mg/g dry cell from Aspergillus niger. [16] Soybean meal influenced chitosan production as a nitrogen source by Aspergillus niger and the chitosan yield was found to be 17.053 mg/g [52], which is quite similar to the present study.…”

Section: Chitosan (Mg/g Biomass)mentioning

confidence: 99%

Saccharomyces Cerevisiae as an Untapped Source of Fungal Chitosan for Antimicrobial Action

Afroz

Kashem

Piash

et al. 2021

Appl Biochem Biotechnol

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Despite being widely available, Saccharomyces cerevisiae has not been widely explored for direct extraction of chitosan biopolymer for antimicrobial applications. In our study, S. cerevisiae from Baker's yeast and Aspergillus niger from moldy onion extracts are studied as alternative sources of chitosan; and S cerevisiae chitosan tested for antimicrobial efficacy. The properties of S. cerevisiae chitosan are compared with moldy onion chitosan and shrimp chitosan extracted from shrimp shells. Chitosan extracted from S. cerevisiae is tested for antimicrobial efficacy against Staphylococcus Aureus.The maximum yields of fungal chitosan are 20.85 ± 0.35 mg/g dry S. cerevisiae biomass at 4th day using a culture broth containing sodium acetate, and 16.15 ± 0.95 mg/g dry A. niger biomass at 12th day. The degree of deacetylation (DD%) of the extracted fungal chitosan samples from S. cerevisiae and A. niger are found to be 63.4%, and 61.2% respectively, using Fourier Transform Infrared Spectroscopy. At a concentration of 2 g/L, S. cerevisiae chitosan shows the maximum inhibition zone diameter of 15.48 ± 0.07 mm.Baker's yeast S cerevisiae biomass and A. niger from moldy onions has not been previously explored as a source of extractible fungal chitosan. This study gives insight that S. cerevisiae and A. niger from agricultural or industrial wastes could be a potential biomass source for production of the chitosan biopolymer. The S. cerevisiae chitosan displayed effective antimicrobial properties against S aureus, indicating the viablitiy of S cerevisae as a resource for extraction of high-quality chitosan.

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Influence of the heavy metals on chitosan production by Absidia corymbifera UCP 0134

Cited by 4 publications

References 13 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

Microbial Enhance of Chitosan Production by Rhizopus arrhizus Using Agroindustrial Substrates

Saccharomyces Cerevisiae as an Untapped Source of Fungal Chitosan for Antimicrobial Action

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