Judul: Mempelajari Pengaruh Penambahan Hidrokoloid Dan Lama Penyimpanan Terhadap Sifat Fisiko Kimiawi Dan Daya Terima Selai Rendah Kalori Buah Mengkudu (Morinda citrifolia)
Abstrak: Tujuan umum penelitian ini adalah untuk rnempelajari cara pembuatan selai rendah kalori buah mengkudu (Morinda citrifolia). Secara khusus penelitian ini bertujuan untuk (1) mengetahui sifat kimia (kadar air, total asam, pH, kadar gula dan kadar pektin) buah mengkudu segar ; (2) mengetabui perbedaan jumlah kalori hidrokoloid sintetik (CMC) dan hidrokoloid alami (karagenan dan agar-agar) yang ditambahkan pada seIai rendah kalori buah mengkudu ; (3) mengetahui sifat kimia (total padatan terlarut, kadar vitamin C dan nilai kalori) selai rendah kalori buah mengkudu pada awal penyimpanan dan (4) mengetahui pengaruh penambahan hidrokoloid dan lama penyimpanan terhadap sifat kimia (kadar air, total asam, pH, Aw, viskositas, total mikroba, total kapang khamir dan daya terima) selai rendah buah mengkudu.
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Judul: Mempelajari pengaruh cara pembuatan sari buah belimbing wuluh (Averrhoa bilimbi L.) terhadap nilai gizi dan daya terimanya
Abstrak: Penelitian ini bertujuan untuk mempelajari pengaruh cara pembuatan sari buah belimbing wuluh (Averrhoa bilim- bi L.) terhadap nilai gizi maupun daya terimanya. Sedang- kan tujuan khususnya adalah untuk mengetahui pengaruh pemblansiran (merendam dalam air panas 80°C selama 3 menit), cara ekstraksi buah dengan blender dan juicer serta lama penyimpanan terhadap nilai gizi dan daya terimanya. Selain itu penelitian ini juga bertujuan untuk mengetahui adanya kandungan zat aktif kalium dan asam oksalat dari sari buah belimbing wuluh. Metode penelitian dilakukan dalam dua tahap, yaitu penelitian pendahuluan dan penelitian lanjutan. Penelitian pendahuluan bertujuan menentukan proses pembuatan sari buah, menentukan komposisi bahan seperti buah, air, gula pasir, dan essence (aroma nanas), menentukan taraf perlakuan lama penyimpanan dan juga untuk mengetahui kandungan zat gizi buah segar belimbing wuluh. Sedangkan pada penelitian lanjutan dilakukan proses pembuatan sari buah dan analisis zat gizi serta uji organoleptik untuk melihat pengaruh perlakuan terhadap nilai gizi serta daya terima sari buah.
Keyword: nilai gizi

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