Adsorbers for KMnO 4 and L-Ascorbic Acid in the Active Packaging to Prolong the Shelve-Life and Maintain the Quality of Lanzone (Lansium domesticum Corr.)Fruits

Abstract

To develop an active packaging of lanzone (Lansium domisticum Corr.) Fruits, KmnO₄ as an ethylene scavenger and L-ascorbic acid as an oxygent scavenger were inserted into packaging. As direct contact of KmnO₄ with agricultural product was not recommended and due to the liquid characteristic of both scavenger was carried out. This research was aimed at finding out the best adsorbers for KmnO₄, L-ascorbic acid, and their combination in an active packaging to prolog the shelve-life and to maintain the quality of lanzone fruits. The result showed that ¹⁾ among the four adsorbers tested, pumice could was the best alternative as a KmnO₄ or L-ascorbic acid adsorbers, and ²⁾) spon and pumice were the best alternative adsorber for the combination of KmnO₄ or L-ascorbic acid. Both adsorber were effective in prolonging the shelve-live (8-11 days longer than with out packaging and as good as using silica gel and vermiculite) and maintaining the quality of lanzone fruits.

Key word: lanzone, duku, active packaging, KmnO₄, L-ascorbic acid.