Fractionation of residues from vineyard and wine-making subproducts

• Grant number: 20/04000-9
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: February 12, 2022
• End date: January 30, 2023
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Maria Bernadete Amâncio Varesche
• Grantee: Camila Abreu Borges da Silva Rabelo
• Supervisor: Eulogio Castro
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: Universidad de Jaén, Spain
• Associated to the scholarship: 18/26470-7 - Influence of sugarcane bagasse saccharification by laccase for fermentative production of biofuels, BP.PD

Abstract

The objective of this project is the characterization of the biomass from the cultivation of vines, the vine shoots, aiming at the recovery of multiple secondary products from this biomass. Therefore, the project is proposed in five steps, namely: (1) literature review to update the state of the art, mainly on the topic of vine waste and applied pre-treatments, which will result in a scientific review article ; (2) collection and physicochemical characterization of vine shoots; (3) extraction of bioactive compounds from biomass to be carried out using statistical methodology to optimize the temperature, time and solid:liquid ratio of the process, (4). different pre-treatments will be applied to the biomass: steam explosion, auto-hydrolysis, acid pre-hydrolysis and delignification. After the pre-treatments, the pre-treated solids and hydrolysates resulting from the process will be characterized and (5) the main configurations of the process will be studied to obtain the identified bioproducts from the pre-treated fractions. The characterization and use of vine shoots is incipient and, to ensure a better result of the proposal, a partnership was sought with the Center for Advanced Studies in Earth, Energy and Environmental Sciences (CEACTEMA) of the University of Jaén (Spain) which has a wide range of knowledge and application in the characterization and pre-treatment of biomass, in addition to the conversion of biomass into products of biotechnological interest. Thus, this experience can undoubtedly enhance research with many other types of biomass that are abundant in Brazil, including the vine residues themselves, since the cultivation of grapes has expanded throughout the country, mainly covering Rio Grande do Sul, Santa Catarina, southern Minas and Vale do São Francisco. (AU)