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NTIS 바로가기韓國資源植物學會誌 = Korean journal of plant resources, v.30 no.1, 2017년, pp.38 - 49
오세종 (농촌진흥청 국립농업과학원 농업유전자원센터) , 이명철 (농촌진흥청 국립농업과학원 농업유전자원센터) , 최유미 (농촌진흥청 국립농업과학원 농업유전자원센터) , 이수경 (농촌진흥청 국립농업과학원 농업유전자원센터) , 오명원 (농촌진흥청 국립농업과학원 농업유전자원센터) , (농촌진흥청 국립농업과학원 농업유전자원센터) , 채병수 (농촌진흥청 국립농업과학원 농업유전자원센터) , 현도윤 (농촌진흥청 국립농업과학원 농업유전자원센터)
The objective of this research was to develop Near-Infrared Reflectance Spectroscopy (NIRS) model for amylose and protein contents analysis of large accessions of rice germplasm. A total of 511 accessions of rice germplasm were obtained from National Agrobiodiversity Center to make calibration equat...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
NIRS 분석방법의 특징은? | NIRS 분석방법은 분석하고자 하는 시료를 환경과 인체에 유독한 시약을 사용하지 않고 분쇄, 추출, 여과, 희석 등의 복잡한 전처리 과정 없이 비 파괴적으로 분석할 수 있는 장점을 가지고 있으나 습식분석에 비해 정확성은 낮기 때문에 검량식 자원들을 적정 농도 구간에서 균등한 자원 밀도를 나타내도록 구성하는 것이 중요하다(Kim et al., 2008). | |
본 실험에서 사용된 보존자원이 벼의 대량 유전자원평가를 위한NIRS 예측모델 개발에 충분히 이용될 수 있을 것으로 판단되는 근거는? | 검량식의 기울기인 slope이 1이면NIR 측정값과 습식분석값이 정확히 일치한다는 의미이며 1에 가까울수록NIR 측정값과 습식분석값이 높은 상관관계를 갖는다. 보존자원과 증식자원 간의 아밀로스 및 단백질 농도 차이는 있으나 Slope 값들이 유사한 점을 고려할 때 NIRS 예측모델 개발을 위해 보존자원을 이용하는 것에 문제가 없음을 알 수 있었다. 따라서 본 실험에서 사용된 보존자원은 벼의 대량 유전자원평가를 위한NIRS 예측모델 개발에 충분히 이용될 수 있을 것으로 판단된다. | |
Near-Infrared Reflectance Spectroscopy 란? | Near-Infrared Reflectance Spectroscopy (NIRS)는 근적외선이 시료에 조사될 때 시료내 특정 작용기가 분자진동을 일으키고 특정 파장의 빛을 흡수하게 되는데 이러한 흡광정도는 시료 내 작용기 농도에 비례한다는 램버트 비어 법칙에 근거한 정량분석방법이다. 근적외선영역(800-2,500 ㎚ 파장범위)에서는 주로 수소 결합에 관련된 O-H, C-H, N-H, S-H 및 C=O 관능기들이 중적외선 영역(2,500-25,000 ㎚ 파장범위)의 특정 파장의 빛에너지를 흡수하여 나타나는 분자기준진동의 배음(overtone, 700-1950 ㎚) 진동, 결합(combination, 1950-2500㎚) 진동이 나타나게 된다. |
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