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The Fate of Organophosphorus Pesticides during Camellia Oil Production
Author(s) -
Liu Yihua,
Mo Runhong,
Zhong Donglian,
Shen Danyu,
Ni Zhanglin,
Tang Fubin
Publication year - 2015
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/1750-3841.12951
Subject(s) - camellia , pesticide , chemistry , camellia oleifera , crude oil , metabolite , pesticide residue , food science , botany , biology , agronomy , biochemistry , petroleum engineering , engineering
The purpose of this study was to investigate the fate of organophosphorus pesticides (OPs) during camellia oil production process, from camellia fruit to the final oil product. The results showed that the OPs were mainly distributed in the peel of camellia fruit, basically above 40% after the pesticide application of 7 d ( P < 0.05). A small amount of OPs could enter into the seed and convert to crude camellia oil, with the concentration of 19.5 to 548.2 mg/L. In addition, metabolites of OPs (25.7 to 768.9 mg/L) could be detected in the crude camellia oil. M8oreover, the refining process (degumming, deacidfying, bleaching) had a significant effect on the removal of OPs from the crude camellia oil ( P < 0.05), and the effect was related to the octanol–water partition constant (LogP) of pesticide. The larger the LogP, the more stable the OPs were during refining process. The final refined camellia oil was found to have no detectable levels of OPs metabolite.