Amino acid profile of the gelatin extracted from the scales of catla, rohu, grass carp and their mixed type

Abstract

Gelatin was extracted from the scales of catla (Catla catla), rohu (Labeo rohita), grass carp (Ctenopharyngodon idella), and their mixed type. However, amino acid of the gelatin extracted from the scales of catla and rohu was profiled. While grass carp (0.78 ± 0.03) and mixed scales (0.78 ± 0.02) yielded similar level of gelatin, rohu had the lowest recovery (0.61 ± 0.05). Scales of catla had 0.72 ± 0.06% gelatin. Of the total 14 amino acids, the highest level of glutamic acid (6.58%) was found in the gelatin extracted from the scales of catla with the lowest level of leucine (0.76%). Gelatin extracted from rohu had the highest percent of glutamic acid (6.14) with lowest percent of leucine (0.59). Of the 10 EAAs, 8 were found in the gelatin extracted from the scales of catla and rohu. While the highest per cent of lysine (4.15) was found in the gelatin extracted from the scales of rohu, the lowest per cent (0.59) was leucine.Quantification of fish scales from the fish markets of Bangladesh and extraction optimization may increase both yield and efficiency.

Physical and Mechanical Characteristics of Gelatin-Based Films as a Potential Food Packaging Material: A Review

“…The compounds with higher double bonds might have lower light transmission value as double bond’s structure are responsible for the absorption of visible radiation [ 119 ]. Marine gelatins have been reported to exhibit higher composition of amino acids that have a double bonds structure such as glutamine (6.14–6.58%), tyrosine (1.84–5.42%) and phenylalanine (16.10–18.27%) in comparison to bovine gelatin, which was reported to exhibit glutamine, tyrosine and phenylalanine at 5.43%, 1.16% and 1.60%, respectively [ 14 , 118 , 120 ]. Meanwhile, visible light transmission value for active marine gelatin composite film incorporated with natural extracts such as bergamot, lemongrass, grape seed, kaffir lime, lemon, lime, ginger, turmeric, plai, and green tea were in accordance with the findings for mammalian composite films which showed lower light transmission value (6.20–88.23) as compared to single gelatin films [ 97 , 100 , 101 , 102 ].…”

The synthesis, mechanisms, and additives for bio‐compatible polyvinyl alcohol hydrogels: A review on current advances, trends, and future outlook

“…GEL is a natural biomolecule produced by partial hydrolysis of collagen, [146][147][148] retaining part of the three-stranded helical structure of collagen, and is a major protein component in skin, bone, and cartilage. [140] GEL is composed of a number of different amino acid polypeptide chains [149] and has an almost identical amino acid composition sequence to that of pristine collagen.…”