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Production of Edible Fungi from Potato Protein Liquor (PPL) in Airlift Bioreactor
University of Borås, Faculty of Textiles, Engineering and Business. (Biotechnology)ORCID iD: 0000-0002-1711-7294
University of Borås, Faculty of Textiles, Engineering and Business. (Biotechnology)
University of Borås, Faculty of Textiles, Engineering and Business. (Biotechnology)ORCID iD: 0000-0003-4887-2433
2017 (English)In: Fermentation, ISSN 2311-5637, Vol. 3, no 1, p. 12-Article in journal (Refereed) Published
Sustainable development
In my opinion, the content of this publication falls within the area of sustainable development.
Abstract [en]

Potato protein liquor (PPL), a side stream from the potato starch industry, is normally used as fertilizer. However, with more than 100 g/L of sugars, 20 g/L of Kjeldahl nitrogen and Chemical Oxigen Demand (COD) of 300 g/L, it represents serious environmental challenges. The use of PPL for fungal cultivation is a promising solution to convert this waste into valuable products. In this study, PPL was characterized and used to cultivate edible zygomycete Rhizopus oryzae, which is widely used in Southeast Asian cuisine to prepare e.g., tempeh. Moreover, it can be potentially used as a protein source in animal feed worldwide. Under the best conditions, 65.47 ± 2.91 g of fungal biomass per litre of PPL was obtained in airlift bioreactors. The total Kjeldahl nitrogen content of the biomass was above 70 g/kg dry biomass. The best results showed 51% reduction of COD and 98.7% reduction in the total sugar content of PPL.

Place, publisher, year, edition, pages
Basel, Switzerland, 2017. Vol. 3, no 1, p. 12-
Keywords [en]
airlift bioreactor; filamentous fungal biomass; fungal pellets; potato protein liquor; Rhizopus oryzae
National Category
Water Treatment
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-14903DOI: 10.3390/fermentation3010012OAI: oai:DiVA.org:hb-14903DiVA, id: diva2:1237420
Available from: 2018-08-08 Created: 2018-08-08 Last updated: 2018-08-08Bibliographically approved

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Publisher's full texthttp://www.mdpi.com/2311-5637/3/1/12

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Souza Filho, PedroZamani, AkramTaherzadeh, Mohammad J

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