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Vegan-mycoprotein concentrate from pea-processing industry byproduct using edible filamentous fungi
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Biotechnology)ORCID-id: 0000-0002-1711-7294
Mycorena AB.
Högskolan i Borås, Akademin för vård, arbetsliv och välfärd.ORCID-id: 0000-0002-1574-4809
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Biotechnology)ORCID-id: 0000-0003-3418-1762
Vise andre og tillknytning
2018 (engelsk)Inngår i: Fungal Biology and Biotechnology, ISSN 2054-3085, Vol. 5, nr 5Artikkel i tidsskrift (Fagfellevurdert) Published
Hållbar utveckling
Verkets författare anser att innehållet i publikationen faller inom ämnet hållbar utveckling.
Abstract [en]

Background

Currently around one billion people in the world do not have access to a diet which provides enough protein and energy. However, the production of one of the main sources of protein, animal meat, causes severe impacts on the environment. The present study investigates the production of a vegan-mycoprotein concentrate from pea-industry byproduct (PpB), using edible filamentous fungi, with potential application in human nutrition. Edible fungal strains of Ascomycota (Aspergillus oryzaeFusarium venenatumMonascus purpureusNeurospora intermedia) and Zygomycota (Rhizopus oryzae) phyla were screened and selected for their protein production yield.

Results

A. oryzae had the best performance among the tested fungi, with a protein yield of 0.26 g per g of pea-processing byproduct from the bench scale airlift bioreactor cultivation. It is estimated that by integrating the novel fungal process at an existing pea-processing industry, about 680 kg of fungal biomass attributing to about 38% of extra protein could be produced for each 1 metric ton of pea-processing byproduct. This study is the first of its kind to demonstrate the potential of the pea-processing byproduct to be used by filamentous fungi to produce vegan-mycoprotein for human food applications.

Conclusion

The pea-processing byproduct (PpB) was proved to be an efficient medium for the growth of filamentous fungi to produce a vegan-protein concentrate. Moreover, an industrial scenario for the production of vegan-mycoprotein concentrate for human nutrition is proposed as an integrated process to the existing PPI production facilities.

sted, utgiver, år, opplag, sider
London, UK: BioMed Central, 2018. Vol. 5, nr 5
Emneord [en]
Pea-processing byproduct, Edible filamentous fungi, Vegan-mycoprotein concentrate, Meat substitute
HSV kategori
Forskningsprogram
Resursåtervinning
Identifikatorer
URN: urn:nbn:se:hb:diva-14904DOI: 10.1186/s40694-018-0050-9PubMedID: 29619233OAI: oai:DiVA.org:hb-14904DiVA, id: diva2:1237423
Tilgjengelig fra: 2018-08-08 Laget: 2018-08-08 Sist oppdatert: 2019-08-07bibliografisk kontrollert
Inngår i avhandling
1. Fungi-based biorefinery model for food industry waste: progress toward a circular economy
Åpne denne publikasjonen i ny fane eller vindu >>Fungi-based biorefinery model for food industry waste: progress toward a circular economy
2018 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The food industry, one of the most important industrial sectors worldwide, generates large amounts of biodegradable waste with high organic load. In recent years, the traditional management methods to treat this waste (e.g., landfilling) have been considered not suitable because they do not exploit the potential of the waste material. Alternatively, valorization of food industry waste via a biorefinery model using filamentous fungi is considered to represent an attractive strategy because it minimizes the negative impacts while recovering the nutrients and energy of the waste, in accordance with the concept of the circular economy.

In this thesis, four food processing wastes were utilized as case studies: potato protein liquor (PPL, the soluble fraction of potato starch production waste), the peels wasted during orange juice production, the starchy byproduct of pea protein processes, and the wastewater of a wheat-starch plant. Rhizopus oryzae, a zygomycetous filamentous fungus, was grown with these wastes as a substrate, yielding biomass containing 43% (w/w) protein together with 51% removal of the chemical oxygen demand when cultivated in tenfold-diluted PPL. Moreover, protein-rich biomass was produced using the pea-processing byproduct (55%) and wheat-starch wastewater (51%). In contrast, cultivation in orange peel extract yielded a biomass rich in lipids (20%). The use of PPL was also studied in terms of the economy of fungal cultivation. The biotreatment was found to require only 46% of the capital investment necessary for treating PPL by the traditional strategy (application as fertilizer). In comparison, the ascomycetous fungus Aspergillus oryzae yielded superior results compared to those of R. oryzae when grown in the starchy residues. The high protein content of the fungal biomass encouraged the investigation of its use for bioplastic production. The addition of 20% fungal biomass in a pectin matrix increased the tensile yield of the film and reduced the elongation at break. Moreover, a positive effect on water vapor permeability of the film was also observed.

These results indicate the ability of the filamentous fungi to convert resources wasted by the food industry into new products with positive impacts on the economy and the environment.

sted, utgiver, år, opplag, sider
Borås: Högskolan i Borås, 2018
Serie
Skrifter från Högskolan i Borås, ISSN 0280-381X ; 89
Emneord
filamentous fungi, circular economy, biorefinery, food industry, fungal biomass, bioplastic, resource recovery
HSV kategori
Forskningsprogram
Resursåtervinning
Identifikatorer
urn:nbn:se:hb:diva-14888 (URN)978-91-88838-00-1 (ISBN)978-91-88838-01-8 (ISBN)
Disputas
2018-09-25, 310, University of Borås, Allégatan 1, Borås, 10:00 (engelsk)
Opponent
Tilgjengelig fra: 2018-08-30 Laget: 2018-08-07 Sist oppdatert: 2018-11-26bibliografisk kontrollert

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