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Washing effects of limonene on pesticide residues in green peppers
Author(s) -
Lu HaiYan,
Shen Yan,
Sun Xing,
Zhu Hong,
Liu XianJin
Publication year - 2013
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.6080
Subject(s) - chemistry , pesticide , limonene , pesticide residue , chlorpyrifos , chromatography , detection limit , food science , toxicology , biology , agronomy , essential oil
Background The presence of pesticide residues in food has caused much concern. The low health risks and environmental impacts of limonene make it a very interesting solvent for use in green chemistry. Washing effects of limonene on pesticide residues of methyl chlorpyrifos, chlorothalonil, chlorpyrifos, fenpropathrin and deltamethrin were investigated in green pepper . Results Results showed that washing with a low concentration of limonene for 5 min (where LOQ is limit of quantitation) caused 53.67%, < LOQ , 64.29%, 68.69% and 66.22% loss of the above pesticides, respectively, while corresponding values of washing with a high concentration were 84.64%, < LOQ , 90.46%, 89.00% and 89.36%, respectively. Washing with a low concentration of limonene for 10 min produced 55.90%, < LOQ , 66.19%, 72.08% and 73.25% loss, respectively, while corresponding values of washing with a high concentration were 94.42%, < LOQ , 96.58%, 92.04% and < LOQ , respectively. The reductions due to washing with tap water (for 10 min) and the emulsion with only egg yolk lecithin (at high concentration for 10 min) were 25.18 %, 37.83%, 21.84%, 20.87%, 13.86% and < LOQ , 59.70%, 54.09%, 54.76%, 54.47%, respectively . Conclusion The data indicated that washing with a low concentration of limonene for 5 min was the optimal treatment for elimination of pesticide residues in green pepper, considering effect and treatment time as well as cost. © 2013 Society of Chemical Industry