The presence of carbohydrate rich cell wall is a
distinguishing feature of a plant cell. The cell wall is
approximately 30 % cellulose, 30 % hemicellulose, 35 %
pectin and 5 % protein in dicotyledonous plants (Fry,
1988). In fruit cell wall, pectin content is higher and
protein content lower (Knee and Bartley, 1981). Cosgrove
(2001) presented the detailed structure of plant cell wall
and its loosening