Fig. 4. Effect of different treatments on pectin contents of honeydew melon. (a) watersoluble pectin (WSP); (b) chelate-soluble pectin (CSP); (c) Sodium carbonate-soluble pectin (SSP). Data are presented as means ± standard deviation. Means within same storage time with different small case letters are significantly different; means for same treatments on different storage times with different capital letters are significantly different.