&lt;b&gt;Filamentous fungi producing enzymes under fermentation in cassava liquid waste

Gusmão, Robert de Oliveira; Assis, Fábia Giovana do Val de; Cruz, Alisson Rodrigues da; Solidade, Lucas Santos; Ferreira, Lício Fábio Almeida Andrade; Leal, Patrícia Lopes

doi:10.4025/actascibiolsci.v40i1.41512

Cited by 3 publications

(1 citation statement)

References 27 publications

(22 reference statements)

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“…The residue generated by the manioc processing can then be used as a substrate for enzyme production, as reported by Gusmão et al (2018), where the authors observed the capacity of fungal strains isolated from their own manipulation to produce enzymes of economic interest. The maximum production of pectinase, xylanase, amylase and CMCase was observed for the species: Aspergillus sp.…”

Section: Introductionmentioning

confidence: 88%

PRODUCTION OF GLYCOHYDROLASES FROM RESIDUES FROM THE FLOUR INDUSTRY BY Aspergillus niger

Silveira,

Marinho,

Rodrigues

et al. 2023

Rev. AIDIS ing. cienc. ambient.

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The liquid from cassava processing and the peel are agro-waste produced by the flour industry, a sector of great economic importance in Brazil. These residues can cause environmental impacts when disposed of improperly, due to their high concentration of carbohydrates and chemical demand for oxygen - COD. Faced with this demand, the objective of the present study was to carry out the bioremediation of cassava and cassava peel aiming at the production of glycohydrolases by two strains of Aspergillus niger, DR02 and AN 400. The tests took place in agitated medium, for 144 hours. The analyzes carried out were: glucose, pH, COD and the enzymes glucoamylase, xylanase and α -amylase. The results obtained showed a maximum COD reduction of 76 and 78% - DR02 and AN 400, respectively. The highest production of enzymes detected during this bioprocess, for the strains of A. niger DR02 and AN 400, were α-amylases (11.78 and 3.64 U/mL), glucoamylases (8.21 and 3.80 U/ml) and xylanases (2.66 and 1.43 U/ml), respectively. In view of the results reported here, it can be inferred that mycoremediation can be an alternative to manage waste from the flour industry, simultaneously generating value-added products that can be used in the food industry.

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Section: Introductionmentioning

confidence: 88%

PRODUCTION OF GLYCOHYDROLASES FROM RESIDUES FROM THE FLOUR INDUSTRY BY Aspergillus niger

Silveira,

Marinho,

Rodrigues

et al. 2023

Rev. AIDIS ing. cienc. ambient.

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Enzyme production from microorganisms isolated from cassava (Manihot esculenta (Crantz.)) processing wastes

Okon,

Antia,

Bassey

et al. 2024

Sustainable Cassava

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Extracting Organic Compounds from Brewer's Spent Grain by Various Methods

Грибкова

Харламова

Sevostianova

et al. 2022

Food Processing: Techniques and Technology

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Brewer's spent grain is a brewing industry waste product that contains various valuable biologically active substances. However, polymers can complicate their extraction. This article focuses on innovative extraction methods, including sustainable deep processing that destroys the internal structures of plant matrix. The research objective was to review publications on the sustainable brewer's spent grain processing as a source of secondary raw materials and plant matrix organic compounds. The study featured the last 5–10 years of foreign and domestic analytical and technical publications on grain structure and extraction methods. Unlike the traditional acidic, alkaline, and enzymatic methods of grain processing, physical and mechanical methods aim at extracting biogenic peptides, phenolic compounds, and fatty acids. The nature of the processing depends on the type of the extracted compound. Thus, for the extraction of reducing compounds intended for sorption, exposure to high temperatures (≥ 150°C) is the most effective method. A combined treatment with acids or alkalis of the cellulose-lignin complex makes it possible to achieve a 76.2% yield of hemicelluloses. Acid hydrolysis of arabinoxylans is effective at 120–160°C. Alkaline hydrolysis combined with physical treatment makes it possible to reach 60% of arabinoxylans in a mix with phenolic compounds. When extracting nitrogen-containing, phenolic, and lipid compounds, the degree of grinding of the biomaterial and the organic solvent is of great importance. The optimal degree makes it possible to preserve the spatial structure while maintaining a high yield (86%) of organic compounds. Ultrafiltration concentrates the isolated biogenic compound and preserves its activity with a high yield of up to 95%. The analysis proved that the brewer's spent grain processing can be both feasible and environmentally friendly. It produces a high yield of pure organic compounds, e.g., peptides, phenolic compounds, fatty acids, etc.

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<b>Filamentous fungi producing enzymes under fermentation in cassava liquid waste

Cited by 3 publications

References 27 publications

PRODUCTION OF GLYCOHYDROLASES FROM RESIDUES FROM THE FLOUR INDUSTRY BY Aspergillus niger

PRODUCTION OF GLYCOHYDROLASES FROM RESIDUES FROM THE FLOUR INDUSTRY BY Aspergillus niger

Enzyme production from microorganisms isolated from cassava (Manihot esculenta (Crantz.)) processing wastes

Extracting Organic Compounds from Brewer's Spent Grain by Various Methods

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