Avaliação da estabilidade oxidativa de biodiesel de óleo de girassol com antioxidantes

Química Nova

Roseli Aparecida Ferrari²  Waleska Lemes De Souza¹ 

[1] ,Instituto de Tecnologia de Alimentos Centro de Ciência e Qualidade de Alimentos Campinas SP ,Brasil

关键词: energy;    peroxidation;    lipid oxidation;   

DOI  :  10.1590/S0100-40422009000100020

来源: SciELO

【 摘 要 】

Biodiesel can contain unsaturated fatty acids, which are susceptible to oxidation, being able to change into polymerized compounds. In this work biodiesel was characterized according to physical-chemistry parameters and the antioxidant activity of butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and tert-butylhydroquinone (TBHQ) added to biofuel was analyzed. Biodiesel was submitted to accelerate oxidation in the Schaal oven test, and peroxide value was analyzed.The absorptivity values at 232 nm and 270 nm and oxidative stability in Rancimat®were determined. It was observed that TBHQ presented superior antioxidant activity than BHT and BHA.

【 授权许可】

CC BY-NC   
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