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Advances in Agroindustrial Waste as a Substrate for Obtaining Eco-Friendly Microbial Products

Author

Listed:
  • Álvaro Astudillo

    (Doctoral Program in Sciences of Natural Resources, University of La Frontera, Temuco 4780000, Chile)

  • Olga Rubilar

    (Chemical Engineering Department, University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile
    Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile)

  • Gabriela Briceño

    (Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile)

  • María Cristina Diez

    (Chemical Engineering Department, University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile
    Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile)

  • Heidi Schalchli

    (Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), University of La Frontera, Av. Francisco Salazar 01145, Temuco 4780000, Chile)

Abstract

Recycled agroindustrial waste has been of great interest during the last decade as a low-cost and sustainable substrate for fermentation processes. The types of products, yields, and potential applications depend mainly on the waste composition, which varies in terms of proteins, carbohydrates, and/or polyphenolic compounds. The most commonly reported microbial products are enzymes, pigments, biosurfactants, antibiotics, and phenolic compounds for different industrial applications. Advances in research on novel wastes as nutrient sources and the optimization of fermentation processes can help these materials transition from laboratory applications to an industrial level. This review explores reports published in the last five years (2017–2022) on different types of agroindustrial waste and their utilization in the production of useful microbial products. The present scenario and future scope of agroindustrial waste as substrates for submerged and solid-state fermentation processes are also discussed. The information was analyzed considering two main topics: (i) agroindustrial waste as substrates for fermentation processes and (ii) high-added value products obtained by microbial conversion. This review contributes to future research endeavors to discover the key factors that will allow us to reach the market with sustainable microbial products.

Suggested Citation

  • Álvaro Astudillo & Olga Rubilar & Gabriela Briceño & María Cristina Diez & Heidi Schalchli, 2023. "Advances in Agroindustrial Waste as a Substrate for Obtaining Eco-Friendly Microbial Products," Sustainability, MDPI, vol. 15(4), pages 1-15, February.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3467-:d:1067699
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    References listed on IDEAS

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    1. Barros, Murillo Vetroni & Salvador, Rodrigo & de Francisco, Antonio Carlos & Piekarski, Cassiano Moro, 2020. "Mapping of research lines on circular economy practices in agriculture: From waste to energy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 131(C).
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