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KMID : 1094720160210050646
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Biotechnology and Bioprocess Engineering
2016 Volume.21 No. 5 p.646 ~ p.652
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Fabrication of silver ion exchanged zeolite using scoria and its antibacterial activity
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Lee Jeong-Ho
Choi Kyung-Min
Kim Gi-Beum
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Abstract
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In this study, we examined the antibacterial activity of silver ion exchanged zeolite synthesized from Cheju Scoria. We synthesized zeolite in various NaOH concentrations, but zeolite synthesized in 4 M NaOH was most similar to type A zeolite. Using the synthesized zeolite, we prepared a silver ion exchanged zeolite for studies of antibacterial activity. Antibacterial tests using agar cultures of Escherichia coli (E. coli), with silver ion exchanged zeolite showed a zone of inhibition colonies bacteria did not grow near silver ion exchanged zeolite. Furthermore, spectrophotometry demonstrated a significantly low absorbance of E. coli culture mediums when silver ion exchanged zeolite was included indicating that E. coli propagation was prevented. Through results of these experiments, we conclude that synthesized products with sodalite crystal can be synthesized from Scoria, and these are suitable to produce silver ion exchanged zeolite with antibacterial activity.
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KEYWORD
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antibacterial, bacterial infection and immunity, biochemistry, ion, silver ion exchanged zeolite
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