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Design of Solid-State Fermentation Systems for Polymer Hydrolytic Extracellular Enzyme Production by Filamentous Fungi
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Potato pomace: An efficient resource for Monascus pigments production through solid-state fermentation.

Xiaoju Chen1, Juan Yan1, Ju Chen1

  • 1College of Chemistry and Material Engineering, Chaohu University, Chaohu, Anhui 238000, China.

Journal of Bioscience and Bioengineering
|May 4, 2021
PubMed
Summary
This summary is machine-generated.

Potato pomace, a food industry byproduct, can be efficiently used as a low-cost substrate for producing Monascus pigments. This study optimized fermentation processes for natural food colorant production.

Keywords:
Monascus purpureusPigmentsPotato pomaceShallow tray fermentationSolid-state fermentation

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Area of Science:

  • Food Science
  • Biotechnology
  • Natural Products Chemistry

Background:

  • Monascus pigments are vital natural additives in the food industry.
  • Current production methods require optimization for economic viability.
  • Utilizing agricultural byproducts can enhance sustainability.

Purpose of the Study:

  • To evaluate potato pomace as a cost-effective substrate for Monascus pigment production.
  • To determine optimal fermentation parameters for maximizing pigment yield.
  • To assess the feasibility of industrial-scale pigment production using potato pomace.

Main Methods:

  • Petri dish fermentation was employed to optimize process parameters.
  • Shallow tray fermentation was used to investigate industrial production potential.
  • Pigment quantification was performed using optical density (OD) units per gram of dry substrate.

Main Results:

  • Optimal Petri dish fermentation yielded 654.6, 1268.1, and 1922.7 OD units/g for red, yellow, and total Monascus pigments, respectively.
  • Shallow tray fermentation (200g and 1000g scale) achieved final total pigment concentrations of 1886.9 and 1737.4 OD units/g.
  • Potato pomace proved to be an efficient substrate for Monascus pigment biosynthesis.

Conclusions:

  • Potato pomace is a viable, low-cost substrate for economical Monascus pigment production.
  • This research provides a valuable reference for the comprehensive utilization of potato resources.
  • The findings support the development of sustainable and cost-effective natural food colorant processes.