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Preparation of nanohydroxyapatite from skipjack tuna bone (Katsuwonus pelamis) by alkaline hydrolysis and thermal calcination methods

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Author
Le, Ho Khanh Hy
Dao, Viet Ha
Pham, Xuan Ky
Nguyen, Phuong Anh
Doan, Thi Thiet
Phan, Bao Vy
Date
2021

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Alternative Title
Điều chế nano hydroxyapatite từ xương cá ngừ vằn Katsuwonus pelamis theo phương pháp thủy phân kiềm gia nhiệt
Abstract
As the main component of bones and teeth, hydroxyapatite (HAp) is considered a vital biomaterial in many fields. Meanwhile, fishbone by-products are abundant sources of HAp. Therefore, this study was conducted to prepare nano HAp from skipjack tuna bone (Katsuwonus pelamis) using alkaline hydrolysis and thermal calcination methods. After pre-treatment of fish bones for removing organic impurities, the bone powders were under alkaline hydrolysis in 1 M NaOH solution at 250o C for 1 hour. This method allows to obtain HAp nanopowders with an average particle size of only 22 nm; whereas, when heating at 600o C for four hours, the calcium formed was on average larger (40 nm) in size than the alkaline hydrolysis product. The HAp nanopowders formed by alkaline hydrolysis had a molar ratio of Ca/P 1.929, higher than that of the calcinated sample (1.848). These Ca/P molar ratios prove that the nano-HAp powders are B-type biological hydroxyapatites confirmed by the FTIR spectrum. In addition, the heavy metal contents of calcium powders are detected within safety limits of regulatory requirements of Vietnam regulations on dietary supplements and functional foods.
Journal
Collection of Marine Research Works
Volume
26
Issue/Article Nr
Special issue to introduce papers from the Collection of Marine Research Works, Volume 26 of Institute of Oceanography on the topic "Marine research for sustainable development” published on Vietnam Journal of Marine Science and Technology, Vol. 21(4A), 2021
Page Range
67-80
Resource/Dataset Location
http://113.160.249.209:8080/dspace/handle/123456789/20596
URI
http://hdl.handle.net/1834/42042
Collections
Tuyển tập Nghiên Cứu Biển – Collection of Marine Research Works

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