Fish Processing By-Products as a Potential Source of Gelatin: A Review
- 27 June 2014
- journal article
- review article
- Published by Taylor & Francis Ltd in Journal of Aquatic Food Product Technology
- Vol. 25 (1), 65-92
- https://doi.org/10.1080/10498850.2013.827767
Abstract
The current practice of fish processing generates large amounts of by-products, which can account for up to three-quarters of the total fish weight. Despite the presence of several valuable components in the fish processing discards, the latter are usually dumped into landfills or at sea, having potentially harmful environmental effects or end up as low commercial value products (e.g., white fish meal). Still, fish processing by-products can be considered as an alternative raw material for the preparation of high-protein ingredients, especially for the production of food grade gelatin due to the presence of large amounts of collagen in fish skins, scales, and bones. Although fish gelatin is an alternative to the commercially available mammalian gelatins, its production on a large commercial scale has been hampered, mainly, due to the inferior quality characteristics compared to its mammalian counterparts. This review article summarizes and highlights the potential utilization of by-products generated during fish processing for gelatin extraction. Furthermore, several technical challenges and directions of ongoing research are discussed.Keywords
This publication has 92 references indexed in Scilit:
- Characterization of fish gelatin from surimi processing wastes: Thermal analysis and effect of transglutaminase on gel propertiesFood Hydrocolloids, 2009
- Effects of transglutaminase-induced cross-linking on properties of fish gelatin–nanoclay composite filmFood Chemistry, 2009
- Ultraviolet irradiation improves gel strength of fish gelatinFood Chemistry, 2009
- Preparation and characterisation of gelatins from the skins of sin croaker (Johnius dussumieri) and shortfin scad (Decapterus macrosoma)Food Chemistry, 2007
- Optimization of gelatine extraction from grass carp (Catenopharyngodon idella) fish skin by response surface methodologyBioresource Technology, 2007
- Extraction of muscle proteins and gelatine from cod headProcess Biochemistry, 2006
- Storage of dried fish skins on quality characteristics of extracted gelatinFood Hydrocolloids, 2005
- Extraction of gelatin from fish skins by high pressure treatmentFood Hydrocolloids, 2005
- Aging dynamics in gelatin gel microstructureFood Hydrocolloids, 2003
- Architecture of gelatin gelsContemporary Physics, 1988