Judul: Mempelajari Senyawa Antinutrisi pada Kacang Babi (Vicia faba) dan Kacang Gude (Cajanus cajan) serta Cara Inaktivasinya
Abstrak: Dalam penelitian ini dipelajari kandungan senyawa antinutrisi ( antitripsin , hemaglutinin, saponin dan fitat ) yang terdapat pada kacang babi ( viciafaba ) dan kacang gude (Ca.fanus eajan ) . selain itu dipelajari pula seberapa jauh pengaruh pengolahan (pemanasan) dapat mendestruksi senyawa anti nutrisi tersebut . Pengaruh fisiologis kacang babi dan kacang gude baik mentah maupun yang sudah diolah ( rebus IOO'C, 15 menit ) diamati dengan tikus percobaan.
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Judul: Mempelajari senyawa toksik dan antinutrisi pada kacang jogo (Phaseolus vulgaris L.) dan kacang tunggak (Vigna unguiculata (L) Walp.) serta cara inaktivasinya
Abstrak: Rendahnya nilai gizi kacang-kacangan mentah berhubungan dengan adanya aktivitas senyawa antinutrisi di dalamnya. Hasil penelitian menunjukkan bahwa perlakuan perebusan, pengu- kusan 100°C dan otoklaf 110°C selama 15 menit sangat efektif untuk menghancurkan aktivitas hemaglutinin dalam kacang jogg dan kacang tunggak, serta aktivitas antitripsin dalam kacang kacang jogo. Aktivitas antitripsin dalam kacang tunggak dapat dihancurkan dengan perebusan 100°C selama 30 menit. Pemana- san dengan oven pada suhu 100°C selama 15 menit tidak efektif untuk menghancurkan aktivitas hemaglutinin dan antitripsin pa- da kedua kacang tersebut. Aktivitas hemolitik saponin pada kacang jogo dan kacang tunggak cenderung meningkat jika dipanaskan dengan oven 100°C, pengukusan 100°C dan otoklaf 110°C; sebaliknya menurun jika dilakukan dengan perebusan. Sedangkan kadar fitat dalam ke- dua kacang tersebut tidak berubah dengan semua perlakuan pe- manasan tersebut di atas. Hasil pengamatan terhadap pertumbuhan tikus percobaan didapatkan bahwa susu skim yang digunakan sebagai kontrol mempunyai nilai PER 2.46, sedangkan tepung kacang jogo dan tepung kacang ...
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Judul: Characteristic of Overshooting Top (OT) Based on  Himawari  8  Satellite  as  a  Convective  Cloud  Feature  that  Generates  Extreme Weather in the Java Island Region
Abstrak: Overshooting Top (OT) is a feature at the top of a convective cloud that is associated with extreme weather. Research on OT in tropical Indonesia is still very limited. The existence of geostationary satellites with wide area coverage and fast frequency observations is useful for observing the fast dynamics of the OT life cycle. Therefore, this study intends to analyze the relationship between OT and extreme weather, updraft and thermodynamic conditions of OT when extreme weather occurs, the best objective method for detecting OT in the day time and night time, and the spatiotemporal distribution of OT in the tropical region of Java Island during the 2018-2021 period. Based on visual analysis using visible channel and Himawari 8 sandwich products, 87% of extreme weather events in Java were accompanied by the appearance of OT. It indicates that the presence of the OT pattern is a convection cloud pattern or feature that is closely related to extreme weather events for the Java Island region. The existence of a time lag between the appearance of OT and extreme weather events on Java Island indicates that the OT of convection cloud can be used as a precursor or nowcasting for the appearance of extreme weather. Most of the convective cloud OT features during extreme weather events on Java Island have altitude that were only able to exceed the altitude of the equilibrium level and few were able to exceed the tropopause level of 9 km – 16 km. The difference in atmospheric conditions during extreme weather events on Java Island, which is in the tropics and subtropics, is a strong and unstable convective energy condition characterized by a larger CAPE, as well as unstable KI, LI, SI and TTI values. It is offset by kinematic factors in the form of a weak vertical wind shear (bulk wind shear 0-6 km) and a higher freezing point height. The difference between extreme weather events in the Java Island region and other tropical regions compared to subtropical regions is the strong updraft speed of convection clouds. The IRW Texture COMB algorithm based on the IRW-Texture Gradient modification and the COMB algorithm shows a significant increase in quality for detecting OT and non-OT pixels in Java. Rainy days with rainfall > 50 mm/day are very common in areas with an altitude of > 500 m. On the other hand, the level of convection activity which is indicated by the presence of OT and lightning is significantly reduced in this area. OT of convective clouds appear more frequently during the DJF season and less frequently during the JJA season. OT often appears during the day time and rarely at night time. Most OTs appear in the central part, away from the south and north coasts of Java Island during the day, while OTs that appear near the south and north coasts of Java Island can appear in the morning or afternoon.
Keyword: convective clouds, extreme weather, Overshooting Tops, Himawari 8 Satellite