Pectin

Pectin derived from all of the fruits studied was able to inhibit FGF binding. In general, the segment membrane pectins for each fruit had higher inhibitory activity than the peel. Lemon segment membrane pectin induced the greatest inhibition of all of the pectins studied, followed by the segment membranes from tangerines, oranges, and grapefruit.
Various studies have shown pectin to have potential direct health benefits such as a decrease in cholesterol, reduced serum glucose in people with diabetes, and inhibitory effects on cancer growth and metastasis. It also might have applications in wound-healing treatments.