The effect of acid- and alkali-process on biochemical and physicochemical characteristics of fish protein isolate from red snapper (Lutjanus sp) by-product was evaluated. Protein recovered by alkali process (16.79%) was higher compared to acid process (13.75%). Reduction of lipid content and total volatile basic nitrogen (TVB-N) exhibited in both treatments indicated both process improved fish protein isolate recovered from red snapper by-product. In addition, the increasing of water holding capacity and oil binding capacity were observed. However, high peroxide value of fish protein isolate was showed in both treatment. This finding indicated that acid and alkali process can be used as a useful method to recover proteins from red snapper by-product. Alkali process gave a protein isolate with better overall quality compared to acid process.
|Journal||IOP Conference Series: Earth and Environmental Science|
|Publication status||Published - 13 Apr 2018|
|Event||7th ASEAN-FEN International Fisheries Symposium, IFS 2017 - Batu City, East Java, Indonesia|
Duration: 7 Nov 2017 → 9 Nov 2017