Judul: Formulasi minuman effervescent pegagan (centella asiatica) sebagai pangan fungsional untuk lansia
Abstrak: Pegagan (Centella asiatica) merupakan tanaman herbal yang dapat digunakan untuk mengurangi gejala pikun atau demensia. Pemanfaatan pegagan sebagai produk pangan fungsional berupa minuman effervescent masih terbatas. Tujuan penelitian ini adalah untuk mempelajari formulasi minuman pegagan effervescent sebagai makanan fungsional lansia. Rancangan percobaan yang digunakan adalah Rancangan Acak Faktor Lengkap (RAL Faktorial) yang terdiri dari dua faktor yaitu konsentrasi mikrokapsul pegagan yang terdiri dari tiga taraf (15%, 20%, dan 25%) dan konsentrasi pemanis yang terdiri dari tiga taraf (25). %, 30%, dan 35%). Hasil uji organoleptik menunjukkan bahwa formula terpilih adalah minuman pegagan effervescent dengan konsentrasi mikrokapsul 15% dan konsentrasi pemanis 30%. Formula terpilih kemudian diuji menggunakan uji organoleptik kepada lansia dan hasilnya menunjukkan produk minuman pegagan effervescent dapat diterima oleh masyarakat. lansia karena 80% panelis menyukai produk tersebut. Kadar asam asiatik pada formula minuman effervescent pegagan terpilih sebesar 0,6%. Analisis biaya produksi minuman effervescent pegagan terpilih menunjukkan bahwa harganya lebih murah dibandingkan minuman effervescent komersial.
Keyword: Centella asiatica, Pegagan effervescent beverage, Functional food, Elderly

Judul: Organoleptik Properties, Nutritional Content, and  Antioxidant Activity of Instant Cream Soup from Soybean Tempeh Flour and Gotu  Kola (Centella asiatica)
Abstrak: Lansia rentan mengalami masalah kesehatan seperti gangguan fungsi kognitif dan kurangnya ketahanan tubuh. Tempe kedelai mengandung vitamin B12 yang berperan dalam fungsi kognitif. Sementara itu pegagan merupakan antioksidan kuat yang dapat meningkatkan ketahanan tubuh. Penelitian ini bertujuan menganalisis sifat organoleptik, kandungan gizi, dan aktivitas antioksidan produk sup krim instan berbahan tepung tempe kedelai dan pegagan sebagai alternatif makanan untuk lansia. Desain penelitian ini adalah experimental study dengan Rancangan Acak Lengkap (RAL). Berdasarkan hasil uji organoleptik, F3 ditetapkan sebagai formula terbaik dengan kadar air 2,99%; kadar abu 4,41%; kadar lemak 9,72%; kadar protein 21,41%; kadar karbohidrat 60,29%, kadar vitamin B12 0,08 μg, dan aktivitas antioksidan (IC50) pada konsentrasi 2514 ppm dan setara dengan 15,81 mg vit C. Formula terpilih memenuhi 6,9% energi terhadap AKG lansia laki-laki, sedangkan terhadap AKG lansia perempuan memberikan kontribusi 8,0% energi. Formula terpilih memenuhi syarat klaim sebagai pangan tinggi protein., The elderly are vulnerable to health problems such as impaired cognitive function and lack of body resistance. Soybean tempeh contains vitamin B12 which plays a role in cognitive function. Meanwhile, Centella asiatica is a strong antioxidant that can increase the body's resistance. This research aims to analyze the organoleptic properties, nutritional content, and antioxidant activity of instant cream soup products made from soybean tempe flour and Centella asiatica as an alternative food for the elderly. The design of this research is an experimental study with a Completely Randomized Design (CRD). Based on the results of the organoleptic test, F3 was determined as the best formula with a water content of 2.99%; ash content of 4.41%; fat content of 9.72%; protein content of 21.41%; carbohydrate content of 60.29%, vitamin B12 content of 0.08 μg, and antioxidant activity (IC50) at a concentration of 2514 ppm and equivalent to 15.81 mg of vitamin C. The selected formula contributes 6.9% energy against the RDA for elderly men, while the RDA for elderly women contributes 8.0% of energy. The selected formula meets the claim requirements as a high-protein food.
Keyword: Centella asiatica, elderly, instant cream soup, soybean tempeh flour

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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