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Approach Study for Mass Balance of Pesticide Residues in Distillers’ Stillage along with Distillate and Absence Verification of Pesticides in Distilled Spirits from Pilot-Scale of Distillation Column

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Department of Food Science and Technology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
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Chilseo Ethanol Factory, IL SAN Trading Co., 551 Daebu-ro, Chilseo-myeon, Haman-gun, Gyeongsangnam-do 52001, Korea
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Department of Bio Environmental Chemistry, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
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Department of Food and Nutrition, Daegu University, 201 Daegudae-ro, Gyeonsan-si, Gyeongsangbukdo 38453, Korea
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(14), 2572; https://doi.org/10.3390/molecules24142572
Received: 21 June 2019 / Revised: 9 July 2019 / Accepted: 14 July 2019 / Published: 15 July 2019
Herein, contaminants remaining in distillate and distillers’ stillage were quantitatively measured after distillation. After rice bran powder was contaminated with 10 ppm of lead (Pb) and cadmium (Cd) or 0.02–1.27 ppm of five pesticides (terbufos, fenthion, iprobenfos, flutolanil, and ethoprophos) followed by fermentation, single-stage distillation was performed. In the obtained distillate, no Pb or Cd was found, as expected. However, when the pesticides were added as contaminants, trace–0.05 ppm of some pesticides were detected in the distillate, possibly due to the high vapor pressure (e.g., that of ethoprophos) and contamination amount (e.g., that of flutolanil, terbufos, and fenthion). In contrast, none of the contaminating pesticides were observed in the distilled spirits when a fermented liquefaction contaminated with 0.04–4 ppm of six pesticides (fenthion, terbufos, ethoprophos, iprobenfos, oxadiazon, and flutolanil) was distilled using a pilot-plant scale distillation column, indicating that the pesticides hardly migrate to the distilled spirits. View Full-Text
Keywords: lead and cadmium; pesticides; mass balance; distillate and distillers’ stillage; distilled spirits; distillation column lead and cadmium; pesticides; mass balance; distillate and distillers’ stillage; distilled spirits; distillation column
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MDPI and ACS Style

Shin, J.-A.; Cho, H.; Seo, D.-W.; Jeong, H.-G.; Kim, S.C.; Lee, J.-H.; Hong, S.-T.; Lee, K.-T. Approach Study for Mass Balance of Pesticide Residues in Distillers’ Stillage along with Distillate and Absence Verification of Pesticides in Distilled Spirits from Pilot-Scale of Distillation Column. Molecules 2019, 24, 2572. https://doi.org/10.3390/molecules24142572

AMA Style

Shin J-A, Cho H, Seo D-W, Jeong H-G, Kim SC, Lee J-H, Hong S-T, Lee K-T. Approach Study for Mass Balance of Pesticide Residues in Distillers’ Stillage along with Distillate and Absence Verification of Pesticides in Distilled Spirits from Pilot-Scale of Distillation Column. Molecules. 2019; 24(14):2572. https://doi.org/10.3390/molecules24142572

Chicago/Turabian Style

Shin, Jung-Ah, Hoonho Cho, Dong-Woo Seo, Hee-Gon Jeong, Sung C. Kim, Jeung-Hee Lee, Soon-Taek Hong, and Ki-Teak Lee. 2019. "Approach Study for Mass Balance of Pesticide Residues in Distillers’ Stillage along with Distillate and Absence Verification of Pesticides in Distilled Spirits from Pilot-Scale of Distillation Column" Molecules 24, no. 14: 2572. https://doi.org/10.3390/molecules24142572

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