Effects of oven drying on pesticide residues in field-grown chili peppers

• Published in: Applied biological chemistry Vol. 58; no. 1; pp. 97 - 104
• Main Authors: Noh, H.H., Chungbuk National University, Cheongju, Republic of Korea, Kim, D.K., Hanearl Science Ltd., Seongnam, Republic of Korea, Lee, E.Y., Dongbu Farm Hannong Co., Ltd., Seoul, Republic of Korea, Chang, M.I., Ministry of Food and Drug Safety, Cheongju, Republic of Korea, Im, M.H., Daegu University, Gyeongsan, Republic of Korea, Lee, Y.D., Daegu University, Gyeongsan, Republic of Korea, Kyung, K.S., Chungbuk National University, Cheongju, Republic of Korea
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Society for Applied Biological Chemistry 01.02.2015; Springer Nature B.V; 한국응용생명화학회
• Subjects: Applied Microbiology; Biological Techniques; Bioorganic Chemistry; Chemistry; Chemistry and Materials Science; CHILLIES; Chlorfenapyr; clothianidin; diethofencarb; DRYING; Drying ovens; field experimentation; folpet; GUINDILLA; hot peppers; Imidacloprid; indoxacarb; Insecticides; methomyl; methoxyfenozide; Net losses; pepper; Peppers; PESTICIDE; Pesticide residues; PESTICIDES; PIMENT FORT; PLAGUICIDAS; Processing factor,Reduction factor; RESIDU; RESIDUES; RESIDUOS; SECADO; SECHAGE; tetraconazole; Vegetables; Water loss; weight loss; Weight reduction; 농학; Chili pepper; Processing factor; Reduction factor; Pesticide residue; Drying
• ISSN: 1738-2203; 2468-0834; 2234-344X; 2468-0842
• DOI: 10.1007/s13765-015-0016-z

The effects of drying on nine pesticides (chlorfenapyr, clothianidin, diethofencarb, folpet, imidacloprid, indoxacarb, methomyl, methoxyfenozide, and tetraconazole) in chili peppers were studied. The mean concentration factor calculated from weight reduction after drying by water loss was 5.28 for field 1 and 5.41 for field 2 (n = 10). Processing factors for pesticide residues in/on chili peppers after drying were 2.45 - 5.14 for field 1 and 1.71 - 4.53 for field 2, indicating that pesticide residues remaining in/on chili peppers were concentrated by usual drying process for pepper powder. The reduction factors reflecting net loss of pesticide residues during drying were 0.50 - 0.98 for field 1 and 0.44 - 0.98 for field 2. Drying caused a large reduction (37 - 49 %) in clothianidin, diethofencarb, imidacloprid, and tetraconazole; moderate reductions (16 and 22 %) in methomyl and methoxyfenozide; while did not affect the levels of chlorfenapyr, folpet, and indoxacarb (using conservative higher reduction factors from the two field trials).