Biomineralization of calcium carbonate controlled by biomolecules produced by Bacillus sp.

被引：2

作者：

Bastrzyk, A. ^{[1
]}

Polowczyk, I. ^{[1
]}

Legawiec, K. J. ^{[1
]}

Chojniak, J. ^{[2
]}

Paraszkiewicz, K. ^{[3
]}

Plaza, G. A. ^{[2
]}

机构：

[1] Wroclaw Univ Sci & Technol, Fac Chem, Norwida 4-6, PL-50373 Wroclaw, Poland

[2] Inst Ecol Ind Areas, Dept Environm Microbiol, Kossutha 6, PL-40844 Katowice, Poland

[3] Univ Lodz, Fac Biol & Environm Protect, Banacha 12-16, PL-90237 Lodz, Poland

来源：

MINERAL ENGINEERING CONFERENCE | 2018年 / 427卷

关键词：

D O I：

10.1088/1757-899X/427/1/012022

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

In this study, culture supernatant of Bacillus subtilis KP7 growing on liquid LB medium consisted of 2 % of molasses was used for calcium carbonate synthesis. Synthesis of the calcium carbonate structures was performed in a reactor by mixing CaCl2 and Na2CO3 solutions at 25 degrees C. The calcium carbonate particles were characterized by optical microscopy, FTIR and XRD analysis. In addition, the size distribution and the value of zeta potential were determined. It was observed that properties of obtained calcium carbonate depend on the supernatant amount. The smallest crystals of pure calcite with disordered structure were obtained when the concentration of the cell-free supernatant was 5 % (v/v).

引用

页数：6

共 9 条

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