Related Experiment Video
Updated: Oct 1, 2026

Genome-wide Analysis of Histone Modifications Distribution using the Chromatin Immunoprecipitation Sequencing Method in Magnaporthe oryzae
Published on: June 2, 2021
Lactic acid fermentation of potato pulp by the fungus Rhizopus oryzae
Yuji Oda1, Katsuichi Saito, Hiroaki Yamauchi
1Department of Upland Agriculture Research, National Agricultural Research Center for Hokkaido Region, Memuro, Kasai, Hokkaido 082-0071, Japan. yujioda@affrc.go.jp
Abstract:
Thirty-eight strains of the fungus Rhizopus oryzae were grown on potato pulp, an agricultural by-product of the starch industry. Either lactic acid or fumaric acid and ethanol were formed, and the ratio differed among the strains tested. The highest amount of L(+)-lactic acid (10 mg/g fresh matter) was observed in the pulp fermented for six days by Rhizopus oryzae IFO 4707. The IFO 4707 strain rapidly reduced the hardness and pH of potato pulp within one day followed by the gradual synthesis of lactic acid. A composition analysis showed that the enzymes secreted from the fungal cells hydrolyzed starch efficiently with partial degradation of the cell wall. Rhizopus oryzae may be used as an inoculant for ensiling potato pulp and other agricultural by-products containing starch.
More Related Videos
06:08Design of Solid-State Fermentation Systems for Polymer Hydrolytic Extracellular Enzyme Production by Filamentous Fungi
Published on: June 6, 2025
16:33Methods for Facilitating Microbial Growth on Pulp Mill Waste Streams and Characterization of the Biodegradation Potential of Cultured Microbes
Published on: December 12, 2013
Related Concept Videos
Production of Organic Acids
Microbes in the Production of Fermented Foods
Fungal Group Zygomycota
Microbes in Food Production
Production of Alcohol
Microbial Fermentation