5'-Ribonucleotides production using 5'-phosphodiesterase from spent malt roots

• Autor(a) principal: Alves,Edson Marcelino
• Data de Publicação: 2021
• Outros Autores: Souza,Joyce Faria de, Macieja,Szymon, Oliva Neto,Pedro de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Food Technology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-67232021000100416
• topic: Brewing industry wastes; Spent brewer’s yeast; Barley malt rootlets; RNA hydrolysis; Enzyme kinetics; Bioprocess optimization

Abstract 5'-ribonucleotides are high value-added molecules widely used in the food and pharmaceutical industries because of their bioactive properties. The present work aims to produce a composition of 5’-ribonucleotides using spent brewer’s yeast as cheap source of RNA, and barley malt rootlets as cheap source of 5'-phosphodiesterase (5'-PDE). This is a very promising and innovative strategy because both spent yeast and malt rootles are residues of the brewing process and are closely linked in a cycle that until now is not yet commercially exploited due to lack of studies. Our results showed that extraction of 5’-PDE was mainly influenced by the fineness of the rootlets and amount of extraction solvent (water). The main molecules formed during RNA hydrolysis were 5’-ribonucleotides, which represented 85.86% of the total hydrolyzed molecules. Finally, the results of the proposed approach can generate a new perspective for the brewing industry regarding the management of its wastes, generating from them products of high added value and with a wide range of applications.