Antioksidan merupakan senyawa kimia yang dapat menyumbangkan elektron dikandungnya kepada radikal bebas. Namun, antioksidan tidak mampu menghambat oksidan terbentuk akibat stress oksidatif. Adapun tanaman memiliki aktivitas adalah daun tapak dara (Catharanthus roseus L.G.Don) dan cabai jawa (Piper retrofractum Vahl). Ekstraksi dilakukan dengan menggunakan metode Maserasi pelarut etanol 96%. Pad...

surgery: analysis of the EuroSCORE multinational database of 19030 patients. Eur J Cardiothorac Surg 1999;15:816–823. 35. Michel P, Roques F, Nashef SA, the EuroSCORE Project Group. Logistic or additive EuroSCORE for high-risk patients? Eur J Cardiothorac Surg 2003;23:684–687. 36. Jin R, Grunkemeier GL, Providence Health System Cardiovascular Study Group. Does the logistic EuroSCORE offer an ad...

The Wuqing urban section of the North Canal Basin, Tianjin, is a significant gathering place for multisource pollution, showing characteristics stagnant water body supplied by unconventional sources. With development economy and society, quality has been seriously polluted due to discharge sewage outlets influx nonpoint source pollution from farmland. In this study, based on results special exp...

In addition to benjaminamide (2), β-amyrin, β-amyrin acetate, lupeol, betulinic acid, β-sitosterol glucoside, a new ceramide glycoside was isolated from the woods of Ficus lutea Vahl (Moraceae). Using mass fragmentation pattern, 1 and 2D NMR spectra and by comparison with published data, the new compound was characterized as 1-O-β-D-glucopyranosyl-(2S,3R,5E,12E)-2N-[(2'R)-hydroxyhexadecanoyl]-o...

The chemical composition of the essential oils of S. hierosolymitana Boiss. and S. multicaulis Vahl. var. simplicifolia Boiss. collected in Lebanon was studied by means of GC and GC-MS analysis. In all 115 compounds were identified: 82 for S hierosolymitana and 72 for S. multicaulis var. simplicifolia. The presence of carbonylic compounds (17%) characterizes the oil from S. hierosolymitana,whil...