title: Production, characterization, and evaluation of the stability of biodiesel obtained from greasy agroindustrial waste during storage.
abstract: Greasy agroindustrial waste from the process of cooking hog meat was used to produce biodiesel (fatty acid methyl esters and fatty acid ethyl esters) under a specific storage condition. The operating conditions necessary to achieve the optimal relationship between quality and productivity were assessed. Next, batches of methyl and ethyl biodiesels were produced, generating 2 L of each product to evaluate their stability during 150 days of storage. The following study indicates that, for methyl route, the molar ratio (1:5) and catalyst (0.5%) yielded the best result of 90.77% (w/v) and quality parameters within the international standards. The ethyl route also showed the highest yield (77.09% w/v) and better quality parameters with a molar ratio (1:5) and catalyst (0.5%). No significant differences were observed in the methyl biodiesel obtained from the batch process for up to 45 days, while the ethyl biodiesel degraded in 30 days of storage.
authors: a Laboratory of Bioengineering, Faculty of Biological and Environmental Sciences , Federal University of Grande Dourados , Dourados , MS , Brazil.
authors: Maria Eugênia
authors: ME
authors: Petenucci
authors: a Laboratory of Bioengineering, Faculty of Biological and Environmental Sciences , Federal University of Grande Dourados , Dourados , MS , Brazil.
authors: Gustavo Graciano
authors: GG
authors: Fonseca
mesh_terms: D000383:Agriculture; D056804:Biofuels / Q000032:analysis; D002384:Catalysis; D004951:Esterification; D000431:Ethanol / Q000031:analogs & derivatives / Q000737:chemistry; D005525:Food-Processing Industry; D007220:Industrial Waste; D000432:Methanol / Q000737:chemistry; D010084:Oxidation-Reduction; D000069466:Red Meat
chemical_list: D056804:Biofuels; D007220:Industrial Waste; C098088:sodium ethoxide; D000431:Ethanol; D000432:Methanol
keywords: Waste; fatty acids; quality; stability; storage