ABSTRACT
A wide range of plant organs and types of tissue is consumed in the human diet, although highly lignified (woody) tissues are rejected during food preparation.
The organization and detailed composition of the plant cell wall varies with the type of tissues, but the essential features are common to virtually all walls. This is a network of cellulose fibers in a matrix of non-cellulosic polysaccharides. The composition of the matrix varies with the maturity of the plant tissues, the plant species, and the major plant grouping.
