AGENT FOR KEEPING FRESHNESS OF FRUIT AND VEGETABLE

摘要

PURPOSE:To provide a freshness-keeping agent composed of an aqueous solution containing metallic minerals such as Fe, Mn, Cu, Zn, Co Mo, B, etc., as main components and capable of keeping the freshness of vegetables and fruits for a long period. CONSTITUTION:A neutral or weakly alkaline (about 9pH) freshness-keeping agent for fruit and vegetable can be produced by dissolving (A) cations consisting of 0.4-0.7mg/l of Fe, 0.1-0.16mg/l of Mn, about 0.1mg/l of Cu, about 0.1mg/l of Zn, trace Co, Mo and B, and an alkali or alkaline earth metal (Na, K, Ca and Mg), (B) anions composed of 110-120mg/l of Cl ion, about 0.5wt% phosphate ion and sulfate ion and, if necessary, (C) a reducing agent such as L-ascorbic acid (sodium salt), nicotinamide, etc. in water. The agent is sprayed to vegetables or fruits, or the vegetables, etc., are immersed in the agent.