| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.1545 |
| 발표분야 |
생물화공 |
| 제목 |
Immobilization of Neisseria gonorrhea carbonic anhydrase using polyurethane foam for CO2 capture and sequestration |
| 초록 |
Various strategies for capturing and sequestrating carbon dioxide (CO2) are being suggested as the global warming is to increase. One of the researches actively studied is bovine carbonic anhydrase (bCA)-based CO2 capture and sequestration. However, it is difficult to extract and expensive to produce bCA in large scale. This study examined another promising carbonic anhydrase originated from Neisseria gonorrhea (ngCA) which catalyzes reversible hydration of CO2. ngCA can be genetically mass-produced in E-coli system economically. The study focused on immobilizing ngCA for practical utilization. The research proceeded on the conversion of CO2 into bicarbonate and precipitation of calcium carbonate by sequestration. The specific activity of ngCA was similar to that of bCA in CO2 hydration. Precipitation being checked by scanning electron microscopic analysis, most calcium carbonate was calcite whose structure is a regular hexahedron that is the most stable morphology. ngCA was immobilized within polyurethane foam and checked its properties. It was concluded that immobilized ngCA is a stable and promising in capturing CO2. |
| 저자 |
박태윤, 김창섭, 임석일, 차형준
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| 소속 |
POSTECH |
| 키워드 |
immobilization; Neisseria gonorrhea carbonic anhydrase; carbon dioxide capture and sequestration
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| E-Mail |
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| 원문파일 |
초록 보기 |
