This study aims to find out and analyze the efficiency of sharia bank during the global crisis in Indonesia. The types of research used are descriptive and associative research and the data in this study is secondary data from 2007 to 2009 with documentation and library study from relevant institutions and agencies. The analysis data used is descriptive analysis and inductive analysis. In inductive analysis this study uses the DEA method with an intermediation approach that is output oriented.The results of this study show that (1) The average of sharia bank reaches a perfect level of efficiency (100%) during the global crisis; (2) There are differences in the results of efficiency using two different models, they are CRS and VRS model; (3) The average level of efficiency of sharia bank during 2007 to 2009 is increasing; (4) Based on the CRS and VRS model, only Muamalat bank, Permata sharia bank, and Cimb Niaga sharia bank have the best performance compared to other banks during the period of the global crisis

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(Hanifah Rahmi) ABSTRAKDaun teh hijau (Camellia sinensis L.) merupakan salah satu tanaman yang mengandung senyawa-senyawa polifenol seperti katekin dan galokatekin galat yang dapat digunakan sebagai inhibitor tirosinase. Dalam penelitian ini ekstrak daun teh hijau dibuat menjadi sediaan gel dengan menggunakan natrium alginat sebagai gelling agent. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi natrium alginat terhadap penghambatan tirosinase pada gel ekstrak daun teh hijau. Gel dibuat menjadi 3 formula dengan masing-masing konsentrasi natrium alginat berturut-turut sebesar 2; 2,5; 3%. Ekstraksi daun teh hijau dilakukan dengan cara refluks menggunakan pelarut metanol 50%. Hasil penelitian menunjukkan ketiga formula mempunyai nilai IC 50 masing-masing sebesar 34,80; 23,27; 20,69 µg/mL. Kesimpulan penelitian ini, bahwa sediaan dengan natrium alginat 3% memberikan hasil penghambatan tirosinase yang paling baik dengan IC 50 sebesar 20,69 µg/mL. Kata kunci: gel, daun teh hijau, natrium alginat, inhibitor tirosinase. ABSTRACT Green tea leaf (Camellia sinensis L.) is a great plant containing polyphenol compounds

Green tea (Camellia sinensis (L.) Kuntze) leaf has polyphenol substance that able to inhibit tyrosinase enzyme. Tyrosinase enzyme is one of the essential components that can be initiated melanin formation on the skin (melanogenesis). The natural inhibitory enzyme can be utilized in cosmetics and medicinal industries as depigmentation agent. Green tea leaf was formulated in the dosage form of a gel with carbomer 934 as a gelling agent. This study aimed to determine the optimum concentration of carbomer 934 on green tea leaf extract gel that has an inhibitory tyrosinase activity. This research used three carbomer 934 concentration, there was 0.5%, 0.75%, and 1% respectively. Which every formula was evaluated during six weeks involve organoleptic, homogeneity, viscosity, pH, centrifuge, and freeze-thaw test (during six cycles). The optimum formula was evaluated tyrosinase activity used a spectrophotometer-vis. The results showed that the great concentration of carbomer 934 was contained on the first formula, which has not phase separation and 49.62 ppm of IC 50 value. This research showed that green tea leaf extract gel with 0,5% carbomer 934 prevented tyrosinase activity.