Effect of various acids on physicochemical and functional characteristics of gelatin from swim bladder of rohu (Labeo rohita)

Autor: Tanaji G. Kudre, Balaji Wamanrao Kanwate
Rok vydání: 2017
Předmět:
Zdroj: Journal of Food Science and Technology. 54:2540-2550
ISSN: 0975-8402
0022-1155
DOI: 10.1007/s13197-017-2699-0
Popis: Influence of various acids (acetic acid, phosphoric acid, and propionic acid) at different concentrations (0.05, 0.1, and 0.2 M) on the extraction yield, physicochemical and functional properties of gelatin from Labeo rohita swim bladder were investigated. Highest gelatin yield (44.22%, dry weight basis) was obtained in a sample prepared by without acid pretreatment (GWA) of swim bladder as compared to acid pretreatment counterparts. Amongst the acid pretreatments, propionic acid (GPrA) showed the highest gelatin yield, followed by acetic acid (GAA) and phosphoric acid (GPA) at all concentrations used, respectively. Moreover, with increased concentrations of all acids, the decrease in gelatin yield was observed for all the acids. GWA showed higher protein and hydroxyproline content than that of acid counterparts (P
Databáze: OpenAIRE