The Development of ready-to-eat stir-fried (Southern Thai style) pickled fish bladder chili paste product

Abstract

    The purpose of this research was to study types of fish for produce pickled fish bladder from three types of fish gut including tuna, longtail tuna and mackerel by fermenting the gut with salt at a ratio of 1: 3 for 1 month and selecting the best recipe from sensory testing. The best fish bladder sauce was developed to stir-fried Tai Pla paste by studying the ratio of curry paste, fish bladder juice, tuna meat and other ingredients of 7:21:57:15, 14:14:57:15 and 21:7:57:15 (w/w). The result showed that fish bladder sauce from tuna gut had the highest acceptance score was 8.33 ± 0.49, followed by longtail tuna 7.20 ± 0.41 and mackerel 6.27 ± 0.70, respectively. Interestingly, fish bladder sauce from tuna gut had better odor than longtail tuna and mackerel statistically significant (p<0.05). The best acceptance recipe of stir-fried Tai Pla paste was the recipe that have the same ratio of curry paste and fish bladder juice. The overall acceptance score was 8.67 ± 0.47 and preference score of appearance, color, smell, taste, texture showed higher than the recipe that curry paste and fish bladder sauce are not equal. The addition of a high level of fish bladder juice affects the brightness of the color, causing a darker color and a rich flavor. The addition of curry pastes at a greater level than fish bladder sauce resulted in a good color of paste but the smell is lighter. Re-drying of stir-fried Tai Pla paste with hot air incubator at 60^๐C for 2 hours caused the final product had moisture and free water content were 14.26 and 0.58 respectively. The biological test showed that microorganism was lower than the criteria specified by Thai Community Product Standard and total microorganisms were 3x10 colonies per 1 g. Moreover, E. coli, yeast and mold aflatoxin not detected. The product had a shelf life for 6 months at 30^๐C temperature. Consumers accept the packaging in aluminum foil laminate bags rather than PET plastic containers.