Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content

Hatice Gündüz; Fatma Öztürk; Fettah Gündüz

doi:10.33714/masteb.1981559

Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content

Abstract

This study investigated seasonal variations in the proximate composition, amino acid profile, and vitamin content of the carpet shell clam, Ruditapes decussatus, collected from İzmir Bay, Türkiye. Protein (11.55–12.28%), lipid (1.43–1.88%), and ash (2.34–2.45%) contents did not differ significantly among seasons (p > 0.05), whereas moisture content was significantly higher in winter (79.88%; p < 0.05). Taurine was the predominant amino acid in all seasons, ranging from 489.71 to 692.40 mg/100 g dry weight. The summed concentrations of the reported free amino acids were highest in winter and summer, while the highest sum of essential free amino acids was recorded in summer. Vitamin composition also exhibited marked seasonal variation. Riboflavin, pantothenic acid, thiamine, and nicotinamide reached their highest concentrations in summer at 823.09, 101.05, 25.84, and 22.35 ng/g, respectively. Pyridoxine and vitamin D were highest in autumn, at 1.09 and 20.40 ng/g, respectively, whereas vitamin E was detected only in autumn and winter. These findings indicate that the proximate composition of R. decussatus remained relatively stable, while its amino acid and vitamin profiles varied seasonally. The results provide baseline data for evaluating seasonal changes in the nutritional composition of this commercially important bivalve.

Keywords

Supporting Institution

Izmir Katip Celebi University Scientific Research Project Coordination (Project number: 2024-KDP-SUÜF-0002)

Project Number

İzmir Katip Celebi University Scientific Research Project Coordination (Project number: 2024-KDP-SUÜF-0002)

Ethical Statement

For this type of study, formal consent is not required.

Thanks

This study was supported by the Izmir Katip Celebi University Scientific Research Project Coordination (Project number: 2024-KDP-SUÜF-0002).

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Details

Primary Language

English

Subjects

Fisheries Technologies

Journal Section

Research Article

Authors

Hatice Gündüz ^*
0000-0002-9899-8635
Türkiye

Fatma Öztürk
0000-0003-4763-3801
Türkiye

Fettah Gündüz
0000-0002-0968-3755
Türkiye

Early Pub Date

September 4, 2026

Publication Date

-

Submission Date

June 29, 2026

Acceptance Date

August 19, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

DOI

https://doi.org/10.33714/masteb.1981559

IZ

https://izlik.org/JA26TF37LT

Cite

RIS / Bibtex

APA

Gündüz, H., Öztürk, F., & Gündüz, F. (2026). Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content. Marine Science and Technology Bulletin, Advanced Online Publication, 236-245. https://doi.org/10.33714/masteb.1981559

AMA

1.Gündüz H, Öztürk F, Gündüz F. Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content. Mar. Sci. Tech. Bull. 2026;(Advanced Online Publication):236-245. doi:10.33714/masteb.1981559

Chicago

Gündüz, Hatice, Fatma Öztürk, and Fettah Gündüz. 2026. “Nutritional Quality of the Carpet Shell Clam (Ruditapes Decussatus): Seasonal Variations in Proximate Composition, Amino Acid Profiles, and Vitamin Content”. Marine Science and Technology Bulletin, no. Advanced Online Publication: 236-45. https://doi.org/10.33714/masteb.1981559.

EndNote

Gündüz H, Öztürk F, Gündüz F (September 1, 2026) Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content. Marine Science and Technology Bulletin Advanced Online Publication 236–245.

IEEE

[1]H. Gündüz, F. Öztürk, and F. Gündüz, “Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content”, Mar. Sci. Tech. Bull., no. Advanced Online Publication, pp. 236–245, Sept. 2026, doi: 10.33714/masteb.1981559.

ISNAD

Gündüz, Hatice - Öztürk, Fatma - Gündüz, Fettah. “Nutritional Quality of the Carpet Shell Clam (Ruditapes Decussatus): Seasonal Variations in Proximate Composition, Amino Acid Profiles, and Vitamin Content”. Marine Science and Technology Bulletin. Advanced Online Publication (September 1, 2026): 236-245. https://doi.org/10.33714/masteb.1981559.

JAMA

1.Gündüz H, Öztürk F, Gündüz F. Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content. Mar. Sci. Tech. Bull. 2026;:236–245.

MLA

Gündüz, Hatice, et al. “Nutritional Quality of the Carpet Shell Clam (Ruditapes Decussatus): Seasonal Variations in Proximate Composition, Amino Acid Profiles, and Vitamin Content”. Marine Science and Technology Bulletin, no. Advanced Online Publication, Sept. 2026, pp. 236-45, doi:10.33714/masteb.1981559.

Vancouver

1.Hatice Gündüz, Fatma Öztürk, Fettah Gündüz. Nutritional quality of the carpet shell clam (Ruditapes decussatus): Seasonal variations in proximate composition, amino acid profiles, and vitamin content. Mar. Sci. Tech. Bull. 2026 Sep. 1;(Advanced Online Publication):236-45. doi:10.33714/masteb.1981559