Judul: Aktivitas Antikanker Ekstrak Metanol Berbagai Bagian Pohon Jabon (Anthocephalus cadamba Miq.)
Abstrak: The objectives of this research were to determine the percentage of the methanol extract leaves, bark, and wood of the white jabon tree, and to examine the activity of such anticancer extract by in vitro (pretreatment with BSLT method, and antiproliferation of the MCF-7 breast cancer cell, HeLa cervix cancer cell, and Vero normal cell), as well as to analyze the content of chemical extract having the highest anticancer activity qualitatively through qualitative phytochemistry and quantitatively by using GC-MS pyrolisis. Antiproliferation test was conducted by MTT method. The result of this research revealed that the leaves of the white jabon obtained the highest extract at 13.22%. The extrac of bark and wood were very toxic to the larvae of lobster A. salina at the value LC50 197 μg/mL and LC50 122 μg/mL. Anticancer activity of bark extract towards MCF-7 cancer cell (IC50 91 μg/mL) was higher than the part its wood (IC50 312 μg/mL). However, bark extract was higher towards HeLa cancer cell (IC50 3 μg/mL) than MCF-7 cancer cell (IC50 91 μg/mL). Bark extract was very potential to be developed as anticancer agent to cervix and breast, and kept in save in normal cell (IC50 288 μg/mL). The result of qualitative analysis in bark extract positively consisted of phenol, flavanoid, alkaloid, saponin, triterpenoid, and glycoside. Pyrolisis analysis of GC-MS showed that in bark extract was detected the derived of fatty acid and phenol.
Keyword: HeLa cell, toxicity, white jabon, MCF-7 cell, Vero cell

Judul: (Anthocephalus cadamba (Roxb.)Miq)
Abstrak: Penelitian ini bertujuan menentukan rendemen ekstrak daun jabon (terlarut etanol 100% (E100), 75% (E75), 50% (E50), 25% (E25), dan air (A). Tujuan penelitian selanjutnya adalah menentukan aktivitas antioksidan ekstrak daun jabon tersebut terhadap radikal DPPH dan profil fitokimia berdasarkan analisis kandungan total fenol dan flavonoid serta korelasinya dengan aktivitas antioksidan. Daun jabon yang tergolong tua yang telah dikeringkan dan dibuat serbuk diekstraksi dengan metode maserasi menggunakan pelarut E100, E75, E50, E25, dan A. Ekstrak hasil ekstraksi ditentukan rendemennya, kemudian diuji aktivitas antioksidannya menggunakan kromatografi lapis tipis (KLT) bioautografi dan persentase penangkapan radikal bebas DPPH secara in-vitro. Ekstrak juga dianalisis profil fitokimianya melalui penenuan kadar totalflavonoid dan total fenol. Hasil penelitian menunjukkan bahwa Rendemen hasil ekstraksi daun jabon tertinggi diperoleh dari hasil ekstraksi dengan E50, diikuti dengan E75, E25, A, dan E100 dengan nilai rendemen berturut-turut 23%, 22%, 21%, 18%, dan 13%. Aktivitas antioksidan ekstrak daun jabon terlarut E50 dan A dapat dikategorikan kuat dengan nilai IC50 63 dan 74 μg/mL. Namun, aktivitas antioksidan ekstrak daun jabon terlarut E100, E75, dan E25 tergolong sedang dengan nilai IC50 107, 156, dan 234 μg/mL. Kandungan total flavonoid tertinggi adalah ekstrak A (340 ppm), diikuti oleh E50 (281 ppm), E75 (185 ppm), E100 (172 ppm), dan E25 (59 ppm). Korelasi antara kandungan total flavonoid ekstrak daun jabon dengan aktivitas antioksidannya tinggi (R2=0,83). Kandungan total fenol tertinggi adalah ekstrak A (150 ppm), diikuti oleh E50 (73 ppm), E75 (63 ppm), E25 (58 ppm), dan E100 (52 ppm), tetapi korelasi antara kandungan total fenol ekstrak dengan aktivitas antioksidannya rendah (R2 =0,23). Kandungan kimia yang diduga berperan dalam aktivitas antioksidan pada ekstrak E50 dan A adalah 3α-Dihydrocadambine.
Keyword: Daun jabon, antioksidan, total fenol, flavonoid, 3α-Dihydrocadambine

Judul: Dampak Volatilitas Nilai Tukar Terhadap Inflasi Sektoral: Penerapan Model Overshooting Dornbusch Di Lima Negara Asia
Abstrak: This paper is to examine the application of the theory of Dornbusch overshooting in five countries Asia, Indonesia, Malaysia, Singapore, South Korea, and China. Theory of exchange rate overshooting Dornbusch, an increase in the money supply in the short term will cause the exchange rate to depreciate more than the value of long-term depreciation. The implication of these conditions is in his attempt to get to the economic balance, speed of adjustment of prices of goods and services will be slower than the speed of adjustment that occurs in the exchange rate. In the results of this study can be explained that Indonesia, and Singapore has experienced the phenomenon of overshooting. China, South Korea and Malaysia did not has experience this phenomenon, due to the exchange rate regime adopted by the State. Volatility of exchange rate can affect sectoral inflation, phenomenon overshooting exchange rate be held in Indonesia, Singapura and Malaysia.
Keyword: sectoral inflation, overshooting, money supply