Effect of high pressure heating on physical and chemical characteristics of Asian sea bass ( Lates calcarifer ) backbone
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ORIGINAL ARTICLE
Effect of high pressure heating on physical and chemical characteristics of Asian sea bass (Lates calcarifer) backbone Ima Wijayanti1,3 • Soottawat Benjakul1
•
Pornsatit Sookchoo2
Revised: 7 September 2020 / Accepted: 17 September 2020 Ó Association of Food Scientists & Technologists (India) 2020
Abstract Physical and chemical properties of Asian sea bass (Lates calcarifer) backbone subjected to high pressure heating (autoclaving, 1218C) for different times (30 min; AT-30; 60 min; AT-60; 90 min; AT-90) were studied. As heating time augmented, the increases in protein, a-amino group and hydroxyproline contents in liquor were attained, while hardness was declined indicating that more organic compounds were leached out from the bone matrix. More pronounced XRD pattern was observed in backbone autoclaved for 90 min as a consequence of nano-hydroxyapatite crystals agglomeration. Extension of high-pressure heating time reduced the organic matters as elucidated by TGA and DTA data. Asian sea bass backbone heated at 1218C for 90 min using autoclave had the lowered protein and lipid contents but increased ash content with highest calcium (29.65 ± 0.69%), phosphorus (15.80 ± 0.07%) and iron (15.10 ± 0.61 mg/kg) contents, compared to those with shorter heating time. Therefore, pre-heat treatment could reduce the organic compounds and decrease bone hardness for further process, especially for bio-calcium production.
& Soottawat Benjakul [email protected] 1
International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
2
Center of Excellence in Bio-based Materials and Packaging Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
3
Department of Fish Products Technology, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang 50275, Indonesia
Keywords Asian sea bass Frame Bone Autoclave Chemical composition Physical property
Introduction Calcium is very important for human since it is essential for developing and maintaining bone health (Fischer et al. 2018). Calcium is involved in several biological functions, e.g. muscle functions, vascular contraction, nerve transmission, intracellular signaling, hormonal secretion, and vasodilation (Beto 2015). Therefore, calcium deficiency negatively impacts on bone health and human metabolism. For human, calcium can be obtained through food, food fortification or supplements. Fish bone, especially in form of bio-calcium, has been used for food fortification (Benjakul and Karnjanapratum 2018; Idowu et al. 2019a). Fish bone contains calcium phosphate that is important not only for food but also for pharmaceutical uses such as bio-ceramics material which has good bioactivity, osteoconductivity and biocompatibility with grafted tissue (Correˆa and Holanda, 2019). Calcium in fish bone was able to activate tilapia indigenous transglutaminase (Hemung 2013). In industrial field, calcium oxide
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