Oxidative stability and storage quality of Menthalongifolia L. extract fortified fish nuggets at refrigeration temperature

Abstract

The present study was experimented to explore antioxidant potential of herb viz. M. longifolia L. inelongating the shelf life of emulsion based fish product. Since the fish meat product contain excessive amount ofprotein and fat which are vulnerable to spoilage due to proteolysis and lipolysis. Therefore fish nuggets incorporated with 0% (Control), 1%, 2%, and 3% of M. longifolia L. extract along with control was studied to explore the potential of Artemisia nilagiricaL. on oxidative stability and storage of aerobically packaged fish nuggets at refrigeration temp on 0,7,14 and 21st day. Aqueous ethanolic extract of M. longifolia L. was prepared and incorporated in fish nuggets.Fish nuggets prepared with M. longifolia L. (1%) extract were recorded to be the best among all based on varioussensory attributes with overall acceptability of 7.76±0.19. Extract of M. longifolia L. fortified fish nuggets were safefor human consumption till 21st day of refrigeration (4±1)°C storage under aerobically packaging on the basis of TBAvalue, FFA value, microbiological profile and sensory evaluation. The pH, TBA, FFA, total plate count, yeast andmould count were recorded to 6.49±0.008, 0.825±0.0012, 0.320±0.0005, 4.35±0.010, 1.26±0.013 and 2.20±0.008respectively, and were found within acceptable range on 21st day of refrigeration storage. Thus, it can be interpretedthat 1% aqueous ethanolic extracts of M. longifoliacan be utilized in enhancing the shelf-life and improving the sensoryscores of fish nuggets.