SERQUEIRA, Dalyelli S.; DORNELLAS, Rafael M.; SILVA, Leandro G.; DE MELO, Patricia G.; CASTELLAN, Alain; RUGGIERO, Reinaldo; RICHTER, Eduardo M.; MUNOZ, Rodrigo A.A.

doi:10.1016/j.fuel.2015.07.104

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SERQUEIRA, Dalyelli S.
Universidade Federal de Uberlândia

DORNELLAS, Rafael M.
Universidade Federal de Uberlândia

SILVA, Leandro G.
Universidade Federal de Uberlândia

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Fuel. 2015, vol. 160, p. 490-494

Elsevier

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This work demonstrates the potential use of tetrahydrocurcuminoids (THCs) as natural antioxidants to enhance the oxidation stability of biodiesels. Fatty acid methyl esters produced from cottonseed and residual cooking oils were doped with three different THCs, curcumin and synthetic antioxidants for comparison. The THC derivative with a phenol group in meta-position of the linking chain and a neighboring methoxy group provided higher oxidation stability (induction period values) in both biodiesels in comparison with other THCs and curcumin. Moreover, this THC derivative presented better efficiency than butylated hydroxytoluene in one of the studied biodiesels. This result is in agreement with antioxidant activity data for the three TCHs and curcumin reported in the literature. Additionally, THCs are colorless (instead of curcumin) which increases the market acceptance of such additives for biodiesel.< Leer menos

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natural antioxidant

curcumin

oxidation stability

rancimat

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Tetrahydrocurcuminoids as potential antioxidants for biodiesels

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