Judul: Proses Pemisahan Serat Tanaman Kudzu Melalui Fermentasi dengan Penambahan Mikroba
Abstrak: Kudzu (Pueraria spp.) merupakan tanaman yang termasuk dalam famili leguminocae (kacang-kacangan). Kudzu mudah tumbuh dan merambat dengan cepat. Kudzu dibeberapa negara tropis telah dimanfaatkan dan dibudidayakan sebagai pakan ternak, penutup tanah dan sebagai pupuk hijau serta seratnya telah dimanfaatkan sebagai bahan kerajinan, tali dan kertas. Pemanfaatan tanaman kudzu (Pueraria spp.) di Indonesia saat ini sudah mulai berkembang terutama untuk diambil seratnya yang berasal dari bagian batang . Diperlukan suatu teknologi serta metode untuk memisahkan serat dari batang tanaman kudzu, dimana metode yang dimaksud dapat memisahkan serat dengan cepat dan mudah serta menghasilkan serat dengan kualitas yang baik. Tujuan umum penelitian ini adalah menemukan metode pemisahan serat tanaman kudzu melalui fermentasi dengan bantuan mikroba. Pemilihan perlakuan yang optimal didasarkan pada beberapa parameter yang dianalisa yaitu rendemen, warna serat dan sifat mekanis serat yang dihasilkan. Tujuan khusus dari penelitian ini adalah: 1. Menentukan jenis mikroba, waktu fermentasi serta teknik fermentasi pada proses pemisahan serat batang tanaman kudzu, 2. Mengetahui sifat fisik yaitu warna serat serta sifat mekanis serat yang dihasilkan antara lain kuat tarik, modulus patah dan elongation at break.
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Judul: Physical Characteristics, Chemical Composition and Digestibility of Kudzu Silage with Molasses Addition
Abstrak: Kudzu (Pueraria javanica) merupakan tanaman jenis leguminosa yang cukup disukai ternak dengan kandungan protein kasar yang tinggi (14,5%- 20%). Kudzu memiliki produktivitas yang cukup tinggi, sehingga dapat digunakan sebagai bahan pembuatan silase. Namun kudzu memiliki kandungan water soluble carbohydrate (WSC) rendah yaitu 1,11%, sehingga dalam pembuatan silase perlu penambahan molases untuk meningkatkan kadar WSC. Penelitian ini bertujuan untuk mengevaluasi karakteristik fisik, komposisi kimia dan kecernaan silase kudzu dengan penambahan molases yang berbeda. Metode yang digunakan adalah rancangan acak lengkap (RAL) dengan 4 perlakuan penambahan molases (0%, 1%, 3% dan 5%) dan 5 ulangan. Peubah yang diamati adalah produksi tanaman, kualitas fisik silase, komposisi kimia dan kecernaan. Karakteristik fisik, komposisi kimia dan kecernaan silase kudzu yang dihasilkan pada penambahan molases 5% berkualitas baik berdasarkan hasil penilaian flieg. Penambahan molases dengan taraf 3%-5%, mampu memperbaiki kualitas fisik silase yang ditandai penurunan pH, meningkatnya kandungan kimia serta kecernaan.
Keyword: KcBK, KcBO, leguminosa, silase, WSC

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