The application of chitosan and alginate coatings for a ready-to-eat (RTE) baked fish product was studied. An experimental design was used to investigate the effect of coating a polysaccharide concentration and glycerol addition on the safety (microbial growth) and quality (water loss and lipid oxidation) of an RTE fish product under optimal and abused storage conditions. The results showed that a chitosan coating with 1% (/) chitosan in 1% (/) acetic acid and 15% (/ chitosan) glycerol, or a 1% (/) alginate coating with no glycerol and no crosslinking, showed the best performance in controlling the tested safety and quality parameters. The desirability method was used to identify the shelf lives of chitosan, alginate, and double-coated RTE products. The chitosan-coated samples showed the best performance with a three-fold shelf-life extension compared to the uncoated products stored at 4 °C. Moreover, the tested coatings demonstrated their ability to provide protective functions under abused storage conditions. These results strongly suggest that edible coatings have significant potential in enhancing the shelf life and safety of ready-to-eat (RTE) fish products.
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http://dx.doi.org/10.3390/polym16030346 | DOI Listing |
Fish Shellfish Immunol
January 2025
Vet Products Research & Innovation Center Co., Ltd. 141 Moo9, Thailand Science Park, Innovation Clusters (INC2) Tower D 11(th) floor, Room No. INCD1108-INCD1111 Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
Recently, microsporidiosis caused by a microsporidian [Ecytonucleospora (Enterocytozoon) hepatopenaei, EHP] has been found to seriously impact the global shrimp industry. The aim of this study was to evaluate the therapeutic effects of fumaric acid (FA) in EHP-infected Pacific white shrimp (Penaeus vannamei). In the first 2 groups, non-EHP-infected shrimp were fed FA-supplemented (10 g/kg diet) or normal feed (CM+ and CM-, respectively).
View Article and Find Full Text PDFCurr Res Food Sci
December 2024
Medical Food Laboratory, Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
In this work, three types of benzenedialdehydes (1,2-, 1,3-, and 1,4-BDAs) were used to prepare BDA-crosslinked gelatin nanoparticles and the 1,2-BDA-crosslinked gelatin nanoparticle was explored to stabilize fish oil-loaded Pickering emulsions. The nanoparticle preparation was dependent on both pH and crosslinker types. 1,2-BDA and preparation pH of 12.
View Article and Find Full Text PDFFollowing a request from the European Commission, the European Food Safety Authority was asked to deliver a scientific opinion on the proposed modification of the terms of the authorisation of canthaxanthin, regarding the addition of a new production route, by the yeast CBS 146148. The additive is already authorised as sensory feed additive for use in feed for chickens for fattening, minor poultry species for fattening, laying poultry, poultry reared for laying, ornamental fish, ornamental birds and ornamental breeder hens. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concludes that canthaxanthin produced with CBS 146148 is considered safe for the target species, the consumer and the environment under the current authorised conditions of use.
View Article and Find Full Text PDFAquac Nutr
January 2025
Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
High levels of nitrogen compounds can lead to acute toxicity in aquatic organisms. Ammonia, a by-product of protein breakdown, is the most prevalent contaminant in freshwater environments. Increasing salinity in water sources can cause fluctuations in salinity levels within breeding ponds.
View Article and Find Full Text PDFFront Antibiot
October 2024
Department of Animal Production and Preventive Veterinary Medicine, São Paulo State University "Júlio de Mesquita Filho" (UNESP), Botucatu, São Paulo, Brazil.
Introduction: The intensification of tilapia production has increased animal density in tanks, leading to more frequent exposure to pathogenic agents and compromising the quality of fish products. Antimicrobial resistance is a global concern that affects human treatment, and sentinel microorganisms like are crucial for monitoring production chains, especially in aquaculture, where research is still limited. The aim of this study was to identify the presence of and investigate its antimicrobial resistance profiles throughout the entire tilapia production chain.
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