Salable or usable products having a relatively low value incidentally realized in the course of manufacturing the main product is called by-product. In many instances, there may be several joint products and several by-products depending upon the nature of the input raw materials being processed. A by-product is an outcome that does not make tangible contribution to the sales revenue. The economic value of by-product, comparing it with the main product, is comparatively low.
By-product in the course of sugar production are Bagasse of solid waste and molasses of sweet semi-liquid product. Poultry farm in delivering chicken meat to the market gets poultry leftover parts such as poultry fathers, bones, beaks, feet and poultry fat as by-product. The fibers and outer shell of coconut are the by-products residue of coconut oil and product.
By-product in the course of sugar production are Bagasse of solid waste and molasses of sweet semi-liquid product. Poultry farm in delivering chicken meat to the market gets poultry leftover parts such as poultry fathers, bones, beaks, feet and poultry fat as by-product. The fibers and outer shell of coconut are the by-products residue of coconut oil and product.