Β-glucans obtained from beer spent yeasts as functional food grade additive: Focus on biological activity. (December 2022)

• Record Type: Journal Article
• Authors: Caruso, María Agustina; Piermaria, Judith Araceli; Abraham, Analía Graciela; Medrano, Micaela
• Is Part Of: Food hydrocolloids. Volume 133(2022)
• Publication Date: 2022-12
• Subjects: Brewers spent yeast -- Saccharomyces cerevisiae -- β-Glucans -- Nutraceuticals -- BRM -- Prebiotic; Hydrocolloids -- Periodicals; Food additives -- Periodicals; Colloïdes -- Périodiques; Aliments -- Additifs -- Périodiques; Colloids; Food additives; Periodicals; Electronic journals; 664.06
• DOI: 10.1016/j.foodhyd.2022.107963
• Languages: English
• ISSNs: 0268-005X

Abstract

Abstract: Nowadays, there is an increasing interest in the search for new healthy compounds obtained from by-products of the food industry, because of the concomitant trend towards reutilization and by-products exploitation, both hallmarks of the circular economy. One of these by-products are the brewers spent yeasts (BSY), generated by the brewing industry. BSY, if not properly inactivated and disposed-off, represents an environmental problem. One of the uses given to it is as a feed for livestock. However, certain components of yeast cell walls (in particular, β-glucans) have great potential to be used as Biological Response Modifiers (BRM) for humans. In recent years the interest on these compounds has grown-up, as the research on its potential application as food additives capable of conferring a benefit on consumer's health. Prebiotic, immunomodulatory and antitumoral activities are particularly of great interest. Since β-glucans possess several physiological functions and considering that BSY cell walls are rich in β-glucans, the food industry could generate additional revenue by isolating β-glucans from SBY as a high-value product. The possibility of producing value-added products such as β-glucans from this by-product could benefit beer manufacturers and, in addition, minimize the environmental impacts from these industries. This review summarizes the potential application of BSY by-product by the purification of cell wall components (β-glucans) for application as functional additive, focused on their biological effect on the intestinal context. Graphical abstract: Image 1 Highlights: BSY are a rich source of β-glucans. β glucans are promising biomolecules to be used as healthy food additives. β glucans prebiotic effect could be related to other benefic effects described. Extraction of β-glucans from BSY contributes to sustainability of brewing industry.