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Keywords = basa fillet

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31 pages, 4741 KiB  
Article
Preservative Potential of Anethum graveolens Essential Oil on Fish Fillet Quality and Shelf Life During Refrigerated Storage
by Aya Tayel, Faten S. Hassanin, Shimaa N. Edris, Ahmed Hamad and Islam I. Sabeq
Foods 2025, 14(9), 1591; https://doi.org/10.3390/foods14091591 - 30 Apr 2025
Viewed by 638
Abstract
This study estimated the preservative potential of Dill essential oil (DEO, Anethum graveolens) in terms of the quality and shelf life of Pangasius bocourti (basa fish) fillets during cold storage. GC-MS analysis of DEO’s chemical composition identified monoterpenes, including α-phellandrene (21.81%), d-limonene [...] Read more.
This study estimated the preservative potential of Dill essential oil (DEO, Anethum graveolens) in terms of the quality and shelf life of Pangasius bocourti (basa fish) fillets during cold storage. GC-MS analysis of DEO’s chemical composition identified monoterpenes, including α-phellandrene (21.81%), d-limonene (18.54%), carvone (17.42%), and Dill ether (14.82%). DEO showed concentration-dependent antioxidant properties in the DPPH assay, with an IC50 of 48.3 ± 0.9 µg/mL (mean ± SE). Its antibacterial efficacy against various foodborne pathogens was evaluated using the resazurin turbidimetric microdilution method. Fish fillets were treated with DEO at 200, 2000, and 4000 ppm, and compared to the untreated control and 200 ppm butylhydroxytoluene (BHT)-treated groups. Physicochemical parameters, microbial growth, and sensory characteristics were assessed over a 15-day period at 2.5 °C ± 0.5 °C. Higher concentrations of DEO effectively preserved the pH, water-holding capacity, and color stability of the fillets. Microbial analysis showed that DEO, particularly at 4000 ppm, significantly inhibited the growth of aerobic bacteria, lactic acid bacteria, coliforms, and staphylococci compared with the control. Sensory evaluation revealed that DEO treatment, especially at 4000 ppm, maintained the odor, color, texture, and overall acceptability of fish fillets throughout storage. These results suggest that Anethum graveolens L. essential oil can serve as an effective natural preservative to enhance the quality and prolong the shelf life of refrigerated fish fillets. Full article
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23 pages, 2286 KiB  
Article
Improvement of Microbial Quality, Physicochemical Properties, Fatty Acids Profile, and Shelf Life of Basa (Pangasius bocourti) Fillets during Chilling Storage Using Pepsin, Rosemary Oil, and Citric Acid
by Raghda A. Abd El-Fatah, Mahmoud A. Rozan, Hamid M. Ziena, Kálmán Imre, Adriana Morar, Viorel Herman and Heba H.S. Abdel-Naeem
Foods 2023, 12(22), 4170; https://doi.org/10.3390/foods12224170 - 19 Nov 2023
Cited by 4 | Viewed by 2777
Abstract
Meat discoloration, lipid oxidation, and undesirable texture are inevitable phenomena in basa fish fillets during storage, which in turn limits their exportation as well as decreases consumer acceptability. In addition, increasing consumers’ requirements for high-quality, minimally processed, and ready-to-cook fish fillets with an [...] Read more.
Meat discoloration, lipid oxidation, and undesirable texture are inevitable phenomena in basa fish fillets during storage, which in turn limits their exportation as well as decreases consumer acceptability. In addition, increasing consumers’ requirements for high-quality, minimally processed, and ready-to-cook fish fillets with an extended shelf-life is a great challenge, particularly with lifestyle changes. Accordingly, this study aimed to improve the quality, lipid stability, fatty acid profile, and lipid nutritional quality indices (LNQI) of basa fish fillets during chilling storage at 4 °C for 15 days using pepsin enzyme (E, 0.1%), rosemary oil (R, 0.5%), citric acid (CA, 0.5%), and their combination (0.1% E + 0.5% R; 0.1% E + 0.5% CA; and 0.1% E + 0.5% R + 0.5% CA). Our results revealed that all treated samples exhibited a significant increase in protein content, a significant decrease in fat content, and a marked reduction in pH, total volatile base nitrogen (TVBN), thiobarbituric acid (TBA), free fatty acids, and shear force (SF) values in comparison to control ones. Moreover, significant improvements in sensory scores, color stability, fatty acid profile, LNQI, and microbial quality of all treated samples were observed. Such findings were more pronounced in samples treated with a mixture of pepsin, rosemary, and citric acid (TVBN: 2.04 vs. 6.52 mg%; TBA: 0.40 vs. 2.68 mg malonaldehyde/Kg; and SF: 8.58 vs. 19.51 Kgf). Based on the obtained results, there was an extension for the shelf life of all treated basa fish fillet samples, especially in samples treated with a mixture of pepsin, rosemary, and citric acids when compared with the control samples (˃15 days versus 10 days). Additionally, eucalyptol, camphor, isoborneol, and α-pinene are the main components of rosemary, with great antioxidant and antimicrobial activity. In conclusion, the mixture of pepsin, rosemary, and citric acid can be applied easily in the seafood industry and at the household level to provide ready-to-cook fish fillets of high quality with great health benefits. Full article
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