Studies on the quality of pectin in Citrus unshiu and C. natsudaidai, with special reference to the changes in the properties of pectic substances in peel and pulp at different stages of maturity

Abstract

Changes of qualities occurring in the pectic substances of citrus peel and pulp at different stages of maturity were investigated. Preparation and extraction of pectic substances from citrus peel and pulp were obtained with the procedure described in the previous paper (studies on the quality of pectin in pears).