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조윤섭,조혜성,박문영,박재옥,박태동,김월수 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-
This study was designed to find out an alternative to artificial pollination in kiwifruit production. The parthenocarpic kiwifruits induced by (N-2-chloro-4-pyridyl)-N-phenyl urea (CPPU) treatment tended to be less attractive due to deep furrowing and excessive outgrowth of stigma in mature fruits. Especially, on flower buds after CPPU spray, severe fruit-drop was induced. It was considered enough to spray CPPU at more than 4ppm to attain sufficient fruit set but needed to spray CPPU at more than 16ppm to attain marketable fruit size. When CPPU at 16ppm was sprayed to the same flower once, twice or three time, the fruits received CPPU treatment more time was larger but less attractive. Application of CPPU mare than at 16ppm seemed to be necessary to produce fruits heavier than 80 gr. Enlargement of the fruits received CPPU treatment mainly occurred cross wisely and vertical development was not affected and thickening of outer pericarp primarily contributed to the fruit enlargement. Difference in flesh color or contents of vitamin C and sugars between control fruits and CPPU-treated fruits was not noticed. In conclusion, CPPU treatment to induce parthenocarpic kiwifruits could be commercially applicable, only the method for improving fruit appearance is worked out.
Hee Youn Choi,Mi Jo Kim,Yo Han Kim,Yook-Hwan Noh,Jae-Won Lee,Tae‑won Lee,Min-Gul Kim,Kyun-Seop Bae 대한임상약리학회 2014 Translational and Clinical Pharmacology Vol.22 No.1
Ibandronate (a bisphosphonate) is commonly used as an treatment of osteoporosis in combinationwith vitamin D. Monthly DP-R206-a novel, fixed-dose combination tablet (150 mg ibandronate/24,000 IU vitamin D3)-was recently developed to enhance patient compliance. This open,randomized, two-period crossover study was conducted to compare the pharmacokinetics of ibandronatewhen administered as DP-R206 or 150 mg ibandronate to healthy adult volunteers. Eachvolunteer was randomly allocated to receive single-dose DP-R206 or ibandronate with a 28-daywashout period between treatments. Blood samples were assessed using pharmacokinetic analysis. Plasma ibandronate concentrations were determined using liquid chromatography-tandem massspectrometry. Safety and tolerability assessments were performed throughout the study. In total, 103participants received the study drugs and 72 participants completed the study. The geometric meanratios (DP-R206/ibandronate) of the maximum concentration (Cmax) and the area under the plasmaconcentration time curve from time zero to the last concentration (AUClast) values were 0.959 (90%CI: 0.820–1.120) and 0.924 (90% CI: 0.805–1.060), respectively. The frequencies of adverse events(AEs) and drug reactions were similar between treatment groups, and all AEs were recovered withoutsequalae. Ibandronate pharmacokinetics, tolerability, and safety are comparable when administeredto healthy individuals, regardless if administered as DP-R206 or ibandronate.
Oh, Sang Youn,Yoo, Dong Il,Shin, Younsook,Lee, Wha Seop,Jo, Seong Mu The Korean Fiber Society 2002 Fibers and polymers Vol.3 No.1
Cellulose carbonate was prepared by the reaction of cellulose pulp and $CO_2$ with treatment reagents, such as aqueous $Zncl_2$ (20-40 wt%) solution, acetone or ethyl acetate, at -5-$0^{\circ}C$ and 30-40 bar ($CO_2$) for 2 hr. Among the treatment reagents, ethyl acetate was the most effective. Cellulose carbonate was dissolved in 10% sodium hydroxide solution containing zinc oxide up to 3 wt% at -5-$0^{\circ}C$. Intrinsic viscosities of raw cellulose and cellulose carbonate were measured with an Ubbelohde viscometer using 0.5 M cupriethylenediamine hydroxide (cuen) as a solvent at $20^{\circ}C$ according to ASTM D1795 method. The molecular weight of cellulose was rarely changed by carbonation. Solubility of cellulose carbonate was tested by optical microscopic observation, UV absorbance and viscosity measurement. Phase diagram of cellulose carbonate was obtained by combining the results of solubility evaluation. Maximum concentration of cellulose carbonate for soluble zone was increased with increasing zinc oxide content. Cellulose carbonate solution in good soluble zone was transparent and showed the lowest absorbance and the highest viscosity. The cellulose carbonate and its solution were stable in refrigerator (-$5^{\circ}C$ and atmospheric pressure).