TY - JOUR

T1 - Fungal hydrolysis in submerged fermentation for food waste treatment and fermentation feedstock preparation

AU - Pleissner, Daniel

AU - Kwan, Tsz Him

AU - Lin, Carol Sze Ki

PY - 2014/4

Y1 - 2014/4

N2 - Potential of fungal hydrolysis in submerged fermentation by Aspergillus awamori and Aspergillus oryzae as a food waste treatment process and for preparation of fermentation feedstock has been investigated. By fungal hydrolysis, 80–90% of the initial amount of waste was reduced and degraded within 36–48 h into glucose, free amino nitrogen (FAN) and phosphate. Experiments revealed that 80–90% of starch can be converted into glucose and highest concentration of FAN obtained, when solid mashes of A. awamori and A. oryzae are successively added to fermentations at an interval of 24 h. A maximal solid-to-liquid ratio of 43.2% (w/v) of food waste has been tested without a negative impact on releases of glucose, FAN and phosphate, and final concentrations of 143 g L−1, 1.8 g L−1 and 1.6 g L−1 were obtained in the hydrolysate, respectively. Additionally, fungal hydrolysis as an alternative to conventional treatments for utilization of food waste is discussed.

AB - Potential of fungal hydrolysis in submerged fermentation by Aspergillus awamori and Aspergillus oryzae as a food waste treatment process and for preparation of fermentation feedstock has been investigated. By fungal hydrolysis, 80–90% of the initial amount of waste was reduced and degraded within 36–48 h into glucose, free amino nitrogen (FAN) and phosphate. Experiments revealed that 80–90% of starch can be converted into glucose and highest concentration of FAN obtained, when solid mashes of A. awamori and A. oryzae are successively added to fermentations at an interval of 24 h. A maximal solid-to-liquid ratio of 43.2% (w/v) of food waste has been tested without a negative impact on releases of glucose, FAN and phosphate, and final concentrations of 143 g L−1, 1.8 g L−1 and 1.6 g L−1 were obtained in the hydrolysate, respectively. Additionally, fungal hydrolysis as an alternative to conventional treatments for utilization of food waste is discussed.

KW - Aspergillus oryzae

KW - Aspergillus awamori

KW - Nutrient recovery

KW - Waste treatment

KW - Waste utilization

KW - Biology

UR - http://www.scopus.com/inward/record.url?scp=84897646469&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/b8800712-df4e-36f7-8e0d-45d2e283df51/

U2 - 10.1016/j.biortech.2014.01.139

DO - 10.1016/j.biortech.2014.01.139

M3 - Journal articles

C2 - 24583214

VL - 158

SP - 48

EP - 54

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -