Judul: Pengaruh penambahan tepung kecambah kacang hijau perhadap peningkatan mutu gizi tepung gaplek dari dua jenis ubi kayu
Abstrak: Gaplek merupakan bahan makanan sumber energi yang telah cukup dikenal, bahkan di beberapa daerah di Indonesia dikonsumsi sebagai makanan pokok. Tetapi gaplek mempunyai kandungan protein yang relatif rendah, se- hingga dikhawatirkan masyarakat yang mengonsumsi gaplek sebagai makanan pokok akan menderita kurang protein. Berpijak pada kenyataan tersebut, penelitian ini bertujuan untuk meningkatkan mutu gizi tepung gaplek, terutama kandungan proteinnya, agar masyarakat yang mengonsumsi gaplek sebagai makanan pokok dapat meningkatkan konsumsi proteinnya tanpa harus beralih kepada makanan pokok yang lain.
Keyword: gaplek

Judul: Pengaruh cara pembuatan tepung kacang hijau (Vigna radiata (L) Wilezck)
Abstrak: Salah satu kekurangan kacang-kacangan sebagai sumber protein adalah kekurangan asam amino bersulfur yaitu metionin dan sistin serta adanya senyawa antinu- trisi yang menghambat ketersediaan protein itu sendiri. Pada penelitian ini dilakukan berbagai cara pembuatan tepung kacang hijau dengan perlakuan perkecambahan 3, 6,9 dan 12 jam, perebusan 10, 15, 20 dan 25 menit, serta penyangraian 0, 5, 10, 15 dan 20 menit, untuk mengetahui pengaruhnya terhadap kandungan gizi dan antinutrisi tepung kacang hijau tersebut. Perlakuan perkecambahan, perebusan dan penyangrai- an pada pembuatan tepung kacang hijau mempengaruhi kandungan gizi dan antinutrisi tepung kacang hijau. Perlakuan perkecambahan menyebabkan peningkatan kadar abu, kalsium, fosfor dan protein dengan bertam- bahnya waktu perkecambahan, tetapi menurunkan daya cerna protein in vitro serta meningkatkan dan menurun- kan kadar metionin tergantung kepada lama perkecam- bahan. Perkecambahan menyebabkan penurunan kadar tanin, asam fitat dan aktifitas antitripsin. Perlakuan perebusan menyebabkan penurunan kadar abu, kalsium dan fosfor dan meningkatkan kadar protein dan daya cerna protein in vitro. Kadar metionin me- ningkat pada perlakuan perebusan 10 menit dan menurun pada perlakuan perebusan lebih lama. Perlakuan perebu- san menyebabkan penurunan tanin, asam fitat dan anti- tripsin...
Keyword: 

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.
Keyword: