Journals / Journal of FisheriesSciences.com / 2012 / Cilt: 6 - Sayı: 1

Determination of chemical composition and shelf life of shad (Alosa tanaica Grimm, 1901) in refrigeration conditions

Tirsi (Alosa Tanaica Grimm, 1901)’ nin kimyasal kompozisyonu ve buzdolabı koşullarında raf ömrünün belirlenmesi

Pages
1–8
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results of sensory analysis, beginning to lose the consumability property after the 4th day and inconsumable at 7th day of stored shad fish were determined by panelists.

📌 3 Key Takeaways

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Objective & Hypothesis:This study, was carried out to determine the shelf life and chemical composition of stored shad (Alosa tanaica Grimm, 1901) in refrigerator conditions (4 ±0.5° C).
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Key Findings & Data:Crude fat, crude ash, crude protein and moisture were 13 ±0.5%, 1.3 ±0.4%, 17 ±0.2%, 68 ±0.6% at the begining of the fresh shad, respectively.
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Conclusion & Impact:According to the results of sensory analysis, beginning to lose the consumability property after the 4th day and inconsumable at 7th day of stored shad fish were determined by panelists.
🔬Design:Survey & Empirical Study
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

This study, was carried out to determine the shelf life and chemical composition of stored shad (Alosa tanaica Grimm, 1901) in refrigerator conditions (4 ±0.5° C). Crude fat, crude ash, crude protein and moisture were 13 ±0.5%, 1.3 ±0.4%, 17 ±0.2%, 68 ±0.6% at the begining of the fresh shad, respectively. The quality of shad fish during storage were evaluated by pH, TVB-N, TBA, sensory and microbiological analysis. According to the results of sensory analysis, beginning to lose the consumability property after the 4th day and inconsumable at 7th day of stored shad fish were determined by panelists. As a result of chemical analysis the amount of TVB-N at 0. day 7.4 ± 0.1 mg/100g and 7th day of stored was determined 37.2 ±0.4 mg/100 g, TBA value at 0. days 2.15 ± 0.3 mg /kg MDA and 7. day 15.22 ± 0.9 mg /kg determined as malondialdehyde, the pH value at 6. day was 7.3 respectively. Made as a result of microbiological analysis of bacterial load at 0. day 0.47 ± 0.09 log CFU /g and 6. day 6.3 ± 0.1 log CFU/g, respectively, and consumption was found to exceed the limit value. In a survey of conditions as a result of the refrigerator (4 ± 0.5°C) to maintain the shad (Alosa tanaica Grimm, 1901), the shelf life of 6 days.

Özet

Bu çalışma, buzdolabı koşullarında (4 ±0.5ºC) depolanan tirsi balığının (Alosa tanaica Grimm,1901) raf ömrünün ve kimyasal bileşiminin belirlenmesi amacıyla yapılmıştır. Ham yağ, ham kül, ham protein ve nem oranları sırasıyla %13.0 ±0.5, %1.3 ±0.4, %17.0 ±0.2, %68.0 ±0.6 olarak tespit edilmiştir. Depolama boyunca tirsi balığının kalitesi kimyasal (pH, uçucu bazik azot (TVB-N), tiyobarbitürik asit (TBA)), duyusal ve mikrobiyolojik analizlerle belirlenmiştir. Duyusal analiz sonuçlarına göre tirsi balığının depolamanın 4. gününden itibaren tüketilebilirlik özelliklerini kaybetmeye başladığı, 7. gün ise tüketilemez kaliteye ulaştığı panelistler tarafından belirlenmiştir. Kimyasal analizler sonucu TVB-N miktarı 0. gün 7.4 ±0.1 mg/100g, 7. gün 37.2 ±0.4 mg/100 g olarak, TBA değeri 0. gün 2.15 ±0.3 mg/kg malondialdehit, 7. günde 15.22 ±0.9 mg/kg malondialdehit olarak belirlenmiş, pH miktarı ise 6. gün 7.3 olarak tespit edilmiştir. Yapılan mikrobiyolojik analizler sonucunda toplam bakteri yükü depolamanın başlangıcında 0.47 ±0.096 log cfu/g, depolamanın 6. gününde 6.3 ±0.1 log cfu/g olarak tespit edilmiş ve tüketim sınır değerini aştığı belirlenmiştir. Yapılan araştırmada buzdolabı koşullarında (4 ±0.5ºC) muhafaza edilen tirsi balığının (Alosa tanaica Grimm,1901) raf ömrü 6 gün olarak saptanmıştır.

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Cite This Article

ALTINELATAMAN, C., GARGACI, A., DUYAR, H. A. (2022). Determination of chemical composition and shelf life of shad (Alosa tanaica Grimm, 1901) in refrigeration conditions. Journal of FisheriesSciences.com, Cilt: 6 - Sayı: 1, 1–8. https://ajindex.com/articles/563187

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