Improvement quality of sugar cane bagasse as fish feed ingredient

Abstract

Sugar cane bagasse is a waste from the processing of sugar cane in a sugar factory. Bagasse is obtained about 25% of the total weight of sugar cane which is used as raw material. Nutrients contained in bagasse approximately protein 1-4%, lipid<4%, ash 2-8%, crude fiber 20-38% and NFE 52-61% (in dry weight). Lignocellulosic component found in bagasse were lignin (11-27%), cellulose (26-49%) and hemicellulose (16-33%). This research aimed to improve bagasse into a fish feed ingredient. The study was conducted using a completely random design with four treatments and three replications. The treatment is carried out by mixing pre-treated bagasse with crude enzyme extract from Bacillus subtilis [1/1], [1/0.75], [1/0.5], [1/0.25] w/v which performed at optimum conditions, i.e. 50°C, pH 5.5 and incubation time 72 hours. The results showed that the treatment [1/1] w/v gave the best results. The improved bagasse had a protein content of 24.92%, ash 6.83%, crude fibre 11.56%, (in dry weight). Dissolved protein and reducing sugar increased to 417.60 mg/L and 442.63 mg/L, respectively. Lignin decreased to 2.81%. So the improved sugar cane bagasse was feasible to be used as a fish feed ingredient.

Valorization of weed Portulaca oleracea L. as an alternative to fish feed ingredient

“…High levels of crude fiber in fish feed influence the digestion and absorption of other nutrients, leading to non-optimal nutrient utilization and fish growth [31]. Hydrolyzation process with enzyme extract from plant or microbial sources, which contains specific enzymes, such as cellulases or hemicellulases, can break down complex carbohydrates in crude fiber into more straightforward and digestible by fish [19]. In this research, the unrefined enzyme extract reduces the crude fiber of purslane from 26.20% to 11.43%.…”

“…[18] stated that enzymatic hydrolysis can significantly enhance soybean hulls' nutritional value. [19] demonstrated that the bacterial enzyme extract enhances the nutrient value of sugarcane bagasse through a hydrolytic reaction.…”