Cultivation of edible filamentous fungus Aspergillus oryzae on volatile fatty acids derived from anaerobic digestion of food waste and cow manure

被引：31

作者：

Uwineza, Clarisse ^{[1
]}

Mahboubi, Amir ^{[1
]}

Atmowidjojo, Amelia ^{[2
]}

Ramadhani, Alya ^{[2
]}

Wainaina, Steven ^{[1
]}

Millati, Ria ^{[2
]}

Wikandari, Rachma ^{[2
]}

Niklasson, Claes ^{[3
]}

Taherzadeh, Mohammad J. ^{[1
]}

机构：

[1] Univ Boras, Swedish Ctr Resource Recovery, S-50190 Boras, Sweden

[2] Univ Gadjah Mada, Fac Agr Technol, Dept Food & Agr Prod Technol, Yogyakarta 55281, Indonesia

[3] Chalmers Univ Technol, Dept Chem & Chem Engn, S-41296 Gothenburg, Sweden

来源：

BIORESOURCE TECHNOLOGY | 2021年 / 337卷

基金：

瑞典研究理事会;

关键词：

Food waste; Anaerobic digestion; Volatile fatty acids; Edible filamentous fungi; Aspergillus oryzae; ACETIC-ACID; SACCHAROMYCES-CEREVISIAE; BIOMASS PROTEIN; GROWTH; INHIBITION; ETHANOL; PH; FERMENTATION; MICROORGANISMS; PROPORTIONS;

D O I：

10.1016/j.biortech.2021.125410

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In a circular economy approach, edible filamentous fungi (single cell protein) can be cultivated on volatile fatty acids (VFAs) derived from anaerobic digestion (AD) of organic-rich waste streams. In this study, the effect of pH, concentration/distribution of VFAs, nutrient supplementation, and type of waste on Aspergillus oryzae cultivation on synthetic VFAs, and actual VFAs derived from AD of food waste and cow manure were investigated. The optimal pH for A. oryzae growth on VFAs were 6 and 7 with maximum acetic acid consumption rates of 0.09 g/L. h. The fungus could thrive on high concentrations of acetic (up to 9 g/L) yielding 0.29 g dry biomass/gVFAs(fed). In mixed VFAs cultures, A. oryzae primarily consumed caproic and acetic acids reaching a biomass yield of 0.26 g dry biomass/gVFAs(fed) (containing up to 41% protein). For waste-derived VFAs at pH 6, the fungus successfully consumed 81-100% of caproic, acetic, and butyric acids.

引用

页数：12

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