Valorization of Spent Brewer’s Yeast for the Production of High-Value Products, Materials, and Biofuels and Environmental Application

• Published in: Fermentation (Basel) Vol. 9; no. 3; p. 208
• Main Authors: Zeko-Pivač, Anđela, Habschied, Kristina, Kulisic, Biljana, Barkow, Ingo, Tišma, Marina
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01-02-2023
• Subjects: Amino acids; Beer; Biodiesel fuels; Biofuels; Biogas; Brewer's yeast; Breweries; Carbohydrates; Chemical properties; circular bioeconomy; Dietary minerals; Dietary supplements; Environmental protection; Feed additives; Fermentation; high-value products; Lipids; Nutrition; process sustainability; Proteins; spent brewer’s yeast; Systematic review; Trends; Water treatment; Yeast; β-glucans; United States
• ISSN: 2311-5637; 2311-5637
• DOI: 10.3390/fermentation9030208

Spent brewer’s yeast (SBY) is a byproduct of the brewing industry traditionally used as a feed additive, although it could have much broader applications. In this paper, a comprehensive review of valorization of SBY for the production of high-value products, new materials, and biofuels, as well as environmental application, is presented. An economic perspective is given by mirroring marketing of conventional SBY with innovative high-value products. Cascading utilization of fine chemicals, biofuels, and nutrients such as proteins, carbohydrates, and lipids released by various SBY treatments has been proposed as a means to maximize the sustainable and circular economy.