Utilization of Snakehead fish (Channa striata) extraction by product into fish protein concentrate using acid and alkali solubilization methods

摘要

The extraction of Snakehead fish (Channa striata) flesh for functional food produced a significant amount by product that can be utilized into fish protein concentrate (FPC. The aimed of the study is to investigate the nutritional value of FPC produced from Snakehead fish extraction by product using acid and alkali solubilization methods. Three sets of pH variations were used for each treatment i.e 2,3,4 (acid) and 10,11,12 (base). The parameters being analyzed were yield, water content, ash content, fat content and protein contents. In addition, salt content of FPC was also measured. The results indicated that the highest yield was obtained from treatment of pH 4 with 23.6%. The highest protein content was obtained from treatment using pH 3, with 92.03%. The acid solubilization method was more recommended in producing FPC rather than alkali solubilization method since it tended to result in higher nutritional content.