Exploring high-pressure carbon dioxide for demineralization of goldstripe sardinella scales
Issued Date
2024-12-01
Resource Type
eISSN
27314286
Scopus ID
2-s2.0-85212768992
Journal Title
Discover Food
Volume
4
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Discover Food Vol.4 No.1 (2024)
Suggested Citation
Saleah F., Netramai S., Kijchavengkul T., Wipatanawin A., Rosales C.K. Exploring high-pressure carbon dioxide for demineralization of goldstripe sardinella scales. Discover Food Vol.4 No.1 (2024). doi:10.1007/s44187-024-00250-0 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/102555
Title
Exploring high-pressure carbon dioxide for demineralization of goldstripe sardinella scales
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Abstract
This study explored the use of HPCD for demineralizing goldstripe sardinella scales, using response surface methodology with an on-face central composite design to describe the effects of CO2 pressure (1.0 to 10.0 bar) and treatment time (1 to 5 h) on the demineralization efficiency (DM; %). Significant impacts from both parameters were observed (P < 0.05), with the highest DM of 16.13 ± 1.92% achieved at 10.0 bar for 5 h. Increased pressure enhanced DM more than strong acid treatment at comparable pH. However, further increases in pressure showed diminishing returns due to limited CO2 solubility and temporary buffering systems observed during the process. Scanning electron microscopy with and without energy dispersive X-ray spectroscopy revealed reduced calcium and phosphorus content, preserved collagen integrity, and altered scale structure of HPCD-treated samples.