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Effect of Carbon Dioxide Concentration on Malate and Titratable Acidity in Pereskia aculeata and Kalanchoe rosea
분야 자연과학 > 기타(자연과학)
저자 (Shin Young Park),(Akio Furukawa)
발행기관 한국환경과학회
간행물정보 ENVIRONMENTAL SCIENCES 1998년, 제2권 제2호, 109~114쪽(총6쪽)
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연관 논문
연구보고 : 초임계 이산화탄소 용매하의 요소부가법에 의한 어유지방산으로부터 EPA 와 DHA 의 분리 ( Separation of EPA and DHA from Fatty Acid of Fish Oil by Urea Adduct Formation Using Supercritical Carbon Dioxide Solvent )
원저 ( Original Articles ) ; 인삼 성분이 당질의 산화 및 생성에 미치는 효능 ( Effects of Korean Ginseng on Glucose Oxidation and Glycogen Synthesis in Rats )
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분리기술 열역학 : 초임계 CO2 를 Anti - solvent 로 이용한 Benzoic Acid 의 결정화 ( Crystallization of Benzoic Acid Using Supercritical Carbon Dioxide as Anti - Solvent )
Comparative Investigation of the Hydrogen Production of Zinc/carbons Prepared from Non-activated Carbon and Surface-modified Activated Carbon by Treatment with Zinc Salts -
 
 
영문초록
The induction of crassulacean acid metabolism(CAM) characterized by day/night acid fluctuation was investigated in leaves from 10 days exposure to elevated CO_(2) concentration(1,000 μL L^-1 CO_2). For Pereskia aculeata, have C_(3)-like gas exchange pattern in well watered condition and shift into CAM-like in water stress, showed a more typical CAM-like diurnal acid fluctuation. Whereas the massive diurnal fluctuation of acidity in typical CAM of Kalanchoe rosea was declined. The effect of short-term exposure to various concentrations of CO_(2) on titratable acidity in P. aculeata and K. rosea was also investigated. To investigate the response of various CO_(2) concentrations, four different CO_(2) levels(350, 700, 1,000 and 1,500 μL L^-1) were imposed for 24hr and measured the titratable acidity at 06:00, when the acidity was maximum, and 14:00, when the acidity was minmum. The accumulation of acid in P. aculeata was enhanced markedly by higher concentration of CO_(2), while the level of acidity in K. rosea did not highly respond to CO_(2). A notable difference between P. aculeata and K. rosea was the response of de-acidification to a higher concentration of CO_(2). Increasing with CO_(2), the degree of de-acidification of P. aculeata was increased while that of K. rosea was depressed.
 
 
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