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Amylase and Xylanase from Edible Fungus Neurospora intermedia: Production and Characterization
Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman.
Department of Chemical Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman.
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences.
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0003-3418-1762
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2019 (English)In: Molecules, ISSN 1420-3049, E-ISSN 1420-3049, Vol. 24, no 4Article in journal (Refereed) Published
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

Integrated enzyme production in the biorefinery can significantly reduce the cost of the entire process. The purpose of the present study is to evaluate the production of two hydrolyzing enzymes (amylase and xylanase) by an edible fungus used in the biorefinery, Neurospora intermedia. The enzyme production was explored through submerged fermentation of synthetic media and a wheat-based waste stream (thin stillage and wheat bran). The influence of a nitrogen source on N. intermedia was investigated and a combination of NaNO3 and yeast extract has been identified as the best nitrogen source for extracellular enzyme production. N. intermedia enzymes showed maximum activity at 65 degrees C and pH around 5. Under these conditions, the maximum velocity of amylase and xylanase for starch and xylan hydrolysis was found to be 3.25 U mL(-1) and 14.77 U mL(-1), respectively. Cultivation of N. intermedia in thin stillage and wheat bran medium resulted in relatively high amylase (8.86 +/- 0.41 U mL(-1), 4.68 +/- 0.23) and xylanase (5.48 +/- 0.21, 2.58 +/- 0.07 U mL(-1)) production, respectively, which makes this fungus promising for enzyme production through a wheat-based biorefinery.

Place, publisher, year, edition, pages
2019. Vol. 24, no 4
Keywords [en]
amylase, xylanase, Neurospora intermedia, submerged fermentation, wheat-based biorefinery
National Category
Industrial Biotechnology
Research subject
Resource Recovery; Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-21530DOI: 10.3390/molecules24040721ISI: 000460805900067Scopus ID: 2-s2.0-85061562758OAI: oai:DiVA.org:hb-21530DiVA, id: diva2:1340815
Available from: 2019-08-06 Created: 2019-08-06 Last updated: 2019-08-07

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Lennartsson, Patrik R.Taherzadeh, Mohammad J

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