Production of bio-dicalcium phosphate from by-product of processing of catfish (Pangasianodon hypophthalmus) filet

IF 2.5 4区化学 Q2 Engineering

Chemical Papers Pub Date : 2025-05-28 DOI:10.1007/s11696-025-04104-6

Kien-Quoc Le, Lien-Huong Huynh, Bich-Thuyen Nguyen Thi, Viet Nhan-Hoa Nguyen, Nam Nghiep Tran, Quoc-Phong Ho

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Abstract

Bio-dicalcium phosphate (BDCP) is a natural source of calcium that can be extracted from biological sources such as catfish bones, a by-product of catfish. The huge amount of fish bone generated from the processing of catfish in Vietnam is a potential source for bio-calcium. The production of BDCP from this by-product can increase its value. Catfish bones collected from the factory were stewed and treated with NaOH solution to remove organic impurities. The pre-treated catfish bones were then calcined and ground to fine powder before converting to dicalcium phosphate. Important factors affecting the conversion including H₃PO₄ concentration, FBP concentration in H₃PO₄ solution, precipitation pH, reaction time, and reaction temperature were investigated. XRD, SEM, FTIR, and TGA were employed to characterize the BDCP products. BDCP with high purity was obtained at H₃PO₄ 3 M, FBP concentration in H₃PO₄ of 80 g L⁻¹, pH 5, reaction time 60 min at 60 °C. The product exhibited a notably high crystallinity (> 96%) with particle sizes, ranging from 1 to 3 μm, and crystal sizes of approximately 8 nm. Elemental profiles analysis revealed that the product contains not only a high percentage of calcium and phosphorus but also other essential minerals. The process can be claimed as a viable method for acquiring premium-grade bio-calcium.

Graphical abstract

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鲶鱼鱼片加工副产物生产生物磷酸二钙的研究

生物磷酸二钙（BDCP）是钙的天然来源，可以从生物来源中提取，如鲶鱼的副产品鲶鱼骨头。越南鲶鱼加工过程中产生的大量鱼骨是生物钙的潜在来源。利用该副产品生产BDCP可提高其价值。从工厂收集的鲶鱼骨头经过炖煮，用NaOH溶液处理以去除有机杂质。经过预处理的鲶鱼骨在转化成磷酸二钙之前被煅烧并磨成细粉。考察了H3PO4浓度、H3PO4溶液中FBP浓度、沉淀pH、反应时间、反应温度等因素对转化率的影响。采用XRD、SEM、FTIR和TGA对BDCP产品进行表征。在H3PO4溶液中，FBP浓度为80 g L−1，pH为5,60℃下反应60 min，得到高纯度的BDCP。该产品具有很高的结晶度（> 96%），粒径范围为1 ~ 3 μm，晶体尺寸约为8 nm。元素谱分析表明，该产品不仅含有高比例的钙和磷，而且还含有其他必需矿物质。该工艺是一种获得优质生物钙的可行方法。图形抽象

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来源期刊

Chemical Papers Chemical Engineering-General Chemical Engineering

CiteScore

3.30

自引率

4.50%

发文量

590

期刊介绍： Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.