Use of CIPC as a potato sprout suppressant: health and environmental concerns and future options

Abstract

World over, isopropyl N-(3-chlorophenyl) carbamate (CIPC) is used as a potato sprout suppressant during storage. Residue of CIPC is therefore noticed not only in the stored potatoes but also in the processed potato products. It is about three decades ago that it was proposed that the use of CIPC may become restricted in several countries due to various environmental concerns. During the last 20 years, declining trend in values for the levels of maximum residue limit of CIPC, as recommended from time to time by regulatory agencies, is an indication of potential harmful effects of CIPC. However, at present, larger concerns are being associated with breakdown products (metabolites) of CIPC. Issues like built-up levels of CIPC and its cross-contamination have also started receiving the due attention. This article points out the health and environmental safety concerns that have emerged due to continuous use of CIPC in the last 55 years, since its commercialisation in the year 1962 and in view of advancements in our understanding about this chemical. This article highlights issues that need the attention of the regulatory agencies and presents workable approaches and options along with advisories to reduce the overall use and intake of CIPC so that the risks associated with CIPC can be minimised.