Characteristics of collagens from the swim bladders of yellowfin tuna (Thunnus albacares)
Abstract
Acid soluble collagen (ASC) and pepsin soluble collagen (PSC) were extracted from the swim bladders of yellowfin tuna (Thunnus albacares) with yields of 1.07% and 12.10%, respectively. Based on electrophoretic patterns, both ASC and PSC consisted of two α-chains (α1 and α2) and were characterised to be type I collagen. ASC had higher β-chains than PSC. Imino acid contents of ASC and PSC were 128 and 169 residues/1,000 residues, respectively. Fourier transform infrared (FTIR) spectra of both ASC and PSC were similar and revealed the presence of a triple helix. Both ASC and PSC had the highest solubility at acidic pHs. From zeta potential analysis, a net charge of zero was found at pH 6.05 and 5.93 for ASC and PSC, respectively. Tmax of ASC and PSC were 32.97 and 33.92°C, respectively. The swim bladders of yellowfin tuna could therefore serve as an alternative source of collagen for future applications.
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The α1 and α2 chain ratio of 2:1 displayed in the results suggests that the collagen presence of the viscera is type I collagen.
“Consequently, when the two monomers (α1 and α2) chain ratio would be 2 : 1, which our results displayed similar outcomes, could suggest that the collagen presence of the viscera is a type I collagen [51]”
From Effects of Various Decellularization Methods for the Development of Decellularized Extracellular Matrix from Tilapia (<i>Oreochromis niloticus</i>) Viscera (2024) · cites this paper as [51]
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FTIR analysis of natural and synthetic collagen
Riaz, T., Zeeshan, R., Zarif, F., Ilyas, K., Muhammad, N., Safi, S. Z., Rahim, A., Rizvi, S. A. A., & Rehman, I. U. (2018) · Applied Spectroscopy Reviews · doi:10.1080/05704928.2018.1426595 · Cited by 628 · see citing works
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- Authors
- Kaewdang, O., Benjakul, S., Kaewmanee, T., & Kishimura, H.
- Affiliations
- Prince of Songkla University (TH)
- Hokkaido University (JP)
- Corresponding author
- Benjakul, Soottawat
- Venue
- Food Chemistry
- Publisher
- Elsevier BV
- Published
- 2014-07
- Volume
- 155
- Pages
- 264-270
- ISSN
- 0308-8146 (ISSN-L)
- OpenAlex
- W2017187844
- Cited by
- 169
- References
- 1
- Citations by year
- 2026: 5 · 2025: 13 · 2024: 20 · 2023: 22 · 2022: 16 · 2021: 14 · 2020: 20 · 2019: 18 · 2018: 13 · 2017: 5 · 2016: 11 · 2015: 9 · 2014: 3
- FWCI
- 3.54
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Graduate School of Prince of Songkla University
- PSU halal center, Pattani campus
- Topics
- Physical Sciences › Materials Science › Biomaterials › Collagen: Extraction and Characterization
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Meat and Animal Product Quality
- Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
- Keywords
- collagen, swim bladder, yellowfin tuna, acid-soluble collagen, pepsin-soluble collagen, type I collagen, collagen extraction, amino acid composition, triple helix, pH-dependent solubility, zeta potential, thermal denaturation, fish by-products
- MeSH terms
- Animals, Animal Structures, Collagen, Hydrolysis, Solubility, Tuna, Waste Products, Fish Proteins, Protein Stability
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