Definition of textural deterioration in squid samples: three different tools supported by microbial, visual and physico-chemical analysis

Zafer Ceylan; Turgay Çetinkaya

doi:10.12714/egejfas.38.3.01

TR EN

Kalamar örneklerinde tekstürel bozulmanın tespiti: üç farklı aracın mikrobiyolojik, görsel ve fiziko-kimyasal analizlerle desteklenmesi

Öz

Bu çalışmanın amacı, 4 ºC'de depolanan kalamar örneklerinde toplam mezofilik aerobik bakteri sayısı (TMABc), pH ve bazı görsel duyusal özelliklerin desteklediği sertlik, kohezyon, yaylanma ve yapışma gibi dokusal profil değişikliklerini ortaya çıkarmaktır. Tekstürel değişiklikleri daha net gözlemlemek için Brookfield Tekstür Analiz cihazının TA7, TA9 ve TA18 kodlu üç farklı aracı kullanılmıştır. Depolama günleri arasındaki TMABc 4,32 log KOB/g'dan 6,32 log KOB/g’a ulaşmıştır. TA18 ve TA9 araçlarıyla tespit edilen kalamar numunelerinin sertlik değeri artarken TA7'den elde edilen sertlik değeri daha yüksek olmuştur. Kalamar örneklerinde kohezif yapışkanlık değerindeki en yüksek değişiklik TA9 aracı ile ~%63 olarak tanımlanmıştır. TA9 tarafından tespit edilen elastikiyet değerleri, 4,9 mm'den 2,1 mm'ye keskin bir şekilde düşerken, TA7 ve TA18'in değerleri daha yumuşak bir azalış göstermiştir. Adezif yapışkanlık değerinde en fazla artış (0.08 mJ'den 0.21 mJ'ye) TA7 aracıyla elde edilmiştir. Tekstürel değişimlerle birlikte, pH değeri artmış, üründe bölgesel kararma veya sarı lekeler gözlemlenmiştir. Bu çalışmanın sonuçları, kalamar örneklerinin kalite değişikliklerini belirlemede, özellikle TA18 aracının mikrobiyolojik ve fiziko-kimyasal analizlerle, daha ileri kalamar doku çalışmalarına rehberlik edebileceğini ortaya koymuştur.

Anahtar Kelimeler

Definition of textural deterioration in squid samples: three different tools supported by microbial, visual and physico-chemical analysis

Abstract

The aim of the present study was to reveal the textural profile changes like hardness, cohesiveness, springiness, and adhesion supported by total mesophilic aerobic bacteria count (TMABc), pH, and some visual sensory characteristics in squid samples stored at 4 ºC. Three different Brookfield Texture Analyzer tools, named TA7, TA9, and TA18 were used to observe the textural changes more clearly. The difference of TMABc between the storage days reached from 4.32 log CFU/g to 6.32 log CFU/g. The hardness value of the squid samples, detected by TA18 and TA9 tools, increased while the hardness value obtained from TA7 was higher. The highest change in cohesiveness value in the squid samples was defined by the TA9 tool as ~63%. Once springiness values detected by TA9 were sharply decreased from 4.9 mm to 2.1 mm, those of TA7 and TA18 were slowly decreased. The most increase in adhesion value (0.08 mJ to 0.21 mJ) was obtained in the TA7 tool. Depending on the textural quality changes, the pH value was increased, and as visual and sensory, dark, or yellow spots were observed. The present study results revealed that especially the TA18 tool could be effectively used to determine the quality changes of the squid samples.

Keywords

References

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Details

Primary Language

English

Subjects

Food Engineering

Journal Section

Research Article

Authors

Zafer Ceylan ^*
0000-0002-6527-4382
Türkiye

Turgay Çetinkaya
0000-0003-2962-1241
Türkiye

Publication Date

September 15, 2021

Submission Date

February 6, 2021

Acceptance Date

March 22, 2021

Published in Issue

Year 2021 Volume: 38 Number: 3

DOI

https://doi.org/10.12714/egejfas.38.3.01

IZ

https://izlik.org/JA59CK55AU

Cite

RIS / Bibtex

APA

Ceylan, Z., & Çetinkaya, T. (2021). Definition of textural deterioration in squid samples: three different tools supported by microbial, visual and physico-chemical analysis. Ege Journal of Fisheries and Aquatic Sciences, 38(3), 263-268. https://doi.org/10.12714/egejfas.38.3.01