Judul: Pengolahan Salak Kurma dari Buah Salak Pondoh (Salacca edulis Reinw.)
Abstrak: Buah lokal Indonesia memiliki keanekaragaman dengan nilai eksotika yang cukup tinggi baik dalam bentuk buah, rasa, maupun aroma. Ketersediaan produksi buah nasional juga cukup tinggi bahkan mengalami peningkatan setiap tahunnya. Salah satu contoh buah lokal yang memiliki tingkat produksi tinggi adalah buah salak pondoh. Sentral buah salak terbesar di Indonesia saat ini adalah Banjarnegara dengan varietas salak pondoh nglumut. Produksinya mencapai 228.500 ton per tahun dan rata-rata per hari mencapai 20-30 ton. Perlakuan dalam penanganan pasca panen seperti dalam tahap sortasi dan distribusi akan banyak menghasilkan buah salak pondoh undergrade. Salak undergrade merupakan salak yang memiliki ukuran kecil, permukaan kulit pecah, memiliki ujung yang sobek, dan bukan merupakan salak yang busuk. Pengolahan buah juga sudah cukup banyak dilakukan untuk meningkatan nilai tambahnya, seperti buah salak yang diolah menjadi manisan basah, manisan pedas, keripik salak, dodol salak, dan sirup salak. Pengolahan buah ini belum dilakukan secara maksimal dan dalam produktivitas yang besar, sehingga ketersediaan bahan baku masih melimpah. Oleh karena itu maka dibutuhkan olahan produk lain yang dapat meningkatkan nilai tambah buah salak dan mampu menyerap bahan baku dalam volume yang besar. Salak kurma merupakan salah satu alternatif produk baru yang masih awam di pasaran. Salak kurma tergolong dalam manisan semi basah. Salak kurma ini merupakan produk yang mirip dengan buah kurma dari segi fisik dan memiliki rasa yang manis. Penelitian ini bertujuan untuk mendapatkan teknologi proses pengolahan salak kurma, mengetahui pengaruh larutan kapur sirih, CaCl, serta glukosa terhadap mutu produk, dan karakterisasi salak kurma yang dihasilkan.
Keyword: Dates salacca, Glucose, CaCl2, Lime

Judul: Proses Pengolahan Asinan Salak Pondoh (Salacca edulis Reinw.)
Abstrak: Sallacca edulis Reinw. (pondoh snakefruit) is one of Indonesia’s tropical fruits commodities. It have character easily damage and short shelf life. However, the level of production snakefruits keeps increasing from year to year. Pickle as an alternative process for extend added value of salak. Water activity is important factor that influence shelf life of salak. The stage is determination the concentration of salt and pickle solution (sugar and vinegar). The results of chemical and physical analysis from the research showed the best concentration of salt and pickle solution is salt 12%, sugar 17%, and vinegar 3.5% with parameter the hardness is 18.25 mm/g.sec, vitamin C 0.0023 (mg/100 g), content of acid 0.015 (ml NaOH 0.1 N/100 g), value sensory of taste 4.026, dan water activity is 0.935. The value of water activity showed the formula not effective to prevent growth destroyed bacteri, yeast, and mold at salak pickle.
Keyword: shelf life, pickle, water activity

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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