After drying of one layer, another layer is spread over it and kept for drying. The process is repeated as per desired thickness. Finally they are cut into pieces and wrapped in butter paper or polythene cellophane sheet. They are rich in various nutrients and many value added products could be obtained from them. Mango peel has lignocellulosic composition and hence its complete break down is difficult.
Mango kernel contains high amount of fat and starch.
The oil extracted from kernel is of good quality and could be used in cosmetic and soap industries. About ten per cent alcohol could be obtained from mango kernel by co-culture fermentation. In food processing industries, various enzymes are invariably used for pulp liquefaction, juice clarification, etc. Enzymes such as cellulase and pectinase from mango peel and amylase from mango kernel could be produced by microbial fermentation.