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Isopropyl N-(3-chlorophenyl) Carbamate (CIPC) Residues in Potatoes Stored in Commercial Cold Stores in India

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Abstract

Since no attempt has been made so far in India to determine isopropyl N-(3-chlorophenyl) carbamate (CIPC) residues in potatoes, it became necessary to determine its residues in potatoes which are being used for table and processing purposes. Using high-performance liquid chromatography, CIPC residues were determined in peels, peeled tubers and unpeeled tubers periodically during storage at 10–12 °C in commercial cold stores. The highest concentration of CIPC found in potato peels was 20.17 mg/kg fresh wt, whereas in unpeeled and peeled tubers the residue levels were very low ranging from 0.29 to 1.13 and 0.05 to 0.24 mg/kg, respectively. However, all residue levels observed were within the maximum residue level prescribed by the US Environmental Protection Agency. The experiments done to determine the dispersal and concentration of CIPC applied as an aerosol fog with respect to location and time showed that the distribution of CIPC within the cold store was uneven leading to large variations in residue levels in samples drawn from different parts of the store.

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Acknowledgements

The authors are grateful to the Agricultural and Processed Food Products Export Development Authority, New Delhi, Ministry of Food Processing Industries, New Delhi and National Horticultural Board, Gurgaon for financial assistance. The technical assistance of Mr. Suresh is thankfully acknowledged. The authors thank the owners of Narang, Chatrakaran and Indore ice cold stores of Indore, Ujjain ice and US Katiyar cold stores of Ujjain and Mr. VK Singh of United Phosphorus Limited, New Delhi for their co-operation in this study.

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  1. Division of Crop Physiology and Post Harvest Technology, Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India

    Brajesh Singh & R. Ezekiel

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  1. Brajesh Singh
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  2. R. Ezekiel
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Correspondence to Brajesh Singh.

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Singh, B., Ezekiel, R. Isopropyl N-(3-chlorophenyl) Carbamate (CIPC) Residues in Potatoes Stored in Commercial Cold Stores in India. Potato Res. 53, 111–120 (2010). https://doi.org/10.1007/s11540-010-9155-0

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  • DOI: https://doi.org/10.1007/s11540-010-9155-0

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