Currently, the agri-food society increases waste to the environment with potential environmental impacts and one of them is the wine industry, generating organic waste in short periods, showing that the use of fertilizers in the vineyard, packaging materials, and their waste management suchas grape production in wineries and wine production are responsible for environmental impacts that are highly polluting. In this aspect, grape extracts and grape pomace are rich sources of polyphenols, so in the present study, we evaluated the obtaining of cellulolytic enzymes, through fermentation in solid-state (FES) with strains of Trichoderma sp. Grape pomace and grape stalk residues were used, also Carboxymethylcellulose (CMC) at 0.5 % and mineral solution were added to the (FES). The results showed that grape stalk is a better substrate than grape...

In this paper, the characteristics of the physical-chemical degradation potential of soybean methyl biodiesel were studied, applied to samples of B100, B5, and diesel in storage tanks, including the analysis of microorganisms present in sample bodies with the correct corrosion measurement for AISI 1020 and 316L steel in different environments. Inside the tanks, immersion tests were performed on the sample body, maintaining storage conditions, dynamic conditions, and ambient temperature, for 120 days, collecting samples regularly to evaluate media degradation and analyze microorganisms to develop physicalchemical characterization, oxidation stability (OSI), and water content. Once the storage stage was completed, the corrosion ratio was measured in mm/ year according to ASTM D3707 and the presence of biological microorganisms.The oxidation stability of the B100 samples had ...