Judul: Studi penentuan komposisi optimal agar kertas, ekstrak bekatul dan ekstrak protein syaraf sebagai media kultur misella murni jamur merang serta waktu inkubasinya
Abstrak: Jamur merang adalah jenis jamur yang paling populer di Indonesia serta mempunyai potensi untuk dijadikan sebagai suatu industri jamur yang besar. Suatu industri jamur harus dilandasi oleh suatu proses pembibitan yang efisien dan efektif untuk menjaga kelestarian proses produksi. Salah satu penyebab tingginya biaya produksi bibit jamur adalah mahalnya bahan-bahan yang digunakan untuk pembuatan media kultur miselia murni. Biaya produksi bibit dapat ditekan jika dapat ditemukan bahan media lain yang lebih murah. Bahan-bahan seperti agar kertas, bekatul, protein syaraf mineral-mineral komersial dalam bentuk pupuk pertanian dan diperkirakan dapat dijadikan bahan media kultur miselia. Bahan-bahan ini akan efektif penggunaannya jika diketahui komposisi jumlah bahan yang tepat. Peneltian ini bertujuan menentukan komposisi yang optimal dari bahan-bahan tersebut untuk media kultur miselia jamur merang. ...
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Judul: Penggunaan Ekstrak Kecambah Kacang Hijau, Ekstrak Kentang dan Ekkstrak Kayu Karet untuk Produksi Biomassa Miselium Pleurotus ostreatus  (jacq. ex Fr.) Kummer Dengan Teknik Submerged  Culture
Abstrak: Pleurotus ostreatus (jamur tiram pohon) merupakan jamur konsumsi yang banyak dibudidayakan dan banyak diminati. Produksi miselium dengan teknik szrmberged cultzrre merupakan altematif untuk meningkatkan produktivitas dan efisiensi produksi miselium jamur. Pada penelitian ini digunakan ekstrak kecambah kacang hijau (tauge), ekstrak kentang dan ekstrak kayu karet sebagai bahan baku alami media cair karena mudah diperoleh, murah, tersedia sepanjang tahun dan mengandung senyawa-senyawa nutrisi yang dapat menunjang pertumbuhan miselium P. ostreatus. Tujuan penelitian ini adalah mencari media terbaik yang terbuat dari ekstrak kecambah kacang hijau (tauge), ekstrak kentang dan ekstrak kayu karet untuk menghasilkan pertumbuhan miselium jamur tiram pohon (P. ostreatus) yang optimal dengan hasil biomassa yang tinggi dengan teknik submerged culture.
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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