Judul: Formulasi Beras Analog Tinggi Protein Berbasis Singkong, Maizena, dan Kedelai.
Abstrak: Ketergantungan masyarakat Indonesia terhadap beras sangat tinggi, dengan konsumsi mencapai 93.4 kg/kapita/tahun pada tahun 2015. Dalam rangka menurunkan tingkat konsumsi beras dan mewujudkan diversifikasi pangan, beras (BA) yang umumnya terbuat dari umbi-umbian dapat menjadi pilihan pangan pokok pengganti beras. Namun, umbi-umbian rendah akan protein sehingga beras analog umumnya tidak memiliki kandungan protein setara beras padi. Penambahan kedelai dalam formulasi beras analog diharapkan mampu meningkatkan kandungan proteinnya. Penelitian ini bertujuan untuk memperoleh formulasi terbaik beras analog tinggi protein berbahan dasar singkong, maizena, dan kedelai yang dapat diterima secara organoleptik, serta memperkaya nutrisi beras analog. Penambahan kedelai terbukti mampu meningkatkan tidak hanya kadar protein beras analog, namun juga total mineral dan kadar lemak. Di lain pihak, komposisi kedelai yang terlalu banyak dan jumlah air yang sedikit dapat menurunkan penerimaan organoleptik beras analog. BA terbaik yang diterima secara organoleptik diperoleh dengan komposisi 60% tepung singkong, 20% maizena, 20% kedelai, ditambah air 50% dari total bahan kering yang diproses pada kondisi suhu ekstrusi dalam barrel 950C dan kecepatan ulir 28 Hz. BA kedelai mengandung kadar air 5.58±0.05%, kadar abu 1.46±0.00%, kadar lemak 4.41±0.16%, kadar protein 7.12±0.01%, dan kadar karbohidrat 81.43±0.20%. BA terbaik juga dapat diklaim sebagai pangan ‘sumber protein’ dengan daya cerna protein sebesar 23.43±0.55%.
Keyword: beras analog, diversifikasi pangan, ekstrusi, kedelai

Judul: Pengembangan Beras Analog Tinggi Protein Berbahan Singkong, Jagung, dan Kedelai
Abstrak: Beras analog dikembangkan sebagai pangan alternatif pengganti beras untuk mengurangi ketergantungan masyarakat Indonesia terhadap konsumsi beras padi sebagai makanan pokok dan sumber karbohidrat utama. Beras analog dapat dikembangkan untuk mengandung protein tinggi dengan menambahkan bahan baku sumber protein. Pengembangan beras analog tinggi protein ini diharapkan dapat berkontribusi untuk mengatasi masalah Kekurangan Energi Protein (KEP) melalui pemenuhan asupan protein sesuai kebutuhan individu. Penelitian ini bertujuan untuk mengembangkan beras analog tinggi protein berbasis tepung singkong (10-20%), tepung jagung (50-60%) dan pati jagung (20%) dengan penambahan isolated soy protein (ISP) (10%) sebagai sumber protein. Formula beras analog tinggi protein terbaik dipilih melalui analisis sensori. Formula beras analog tinggi protein terpilih dengan komposisi 10% tepung singkong fermentasi, 60% tepung jagung, 20% pati jagung, dan 10% ISP. Beras analog mengandung karbohidrat sebesar 83,07±0,16% dan protein sebesar 12,10±0,10% yang memenuhi persyaratan klaim kandungan protein.
Keyword: beras analog, ekstrusi panas, tinggi protein, tepung singkong fermentasi

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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