Judul: Studi fermentasi dalam pembuatan pikel labu siam
Abstrak: Penelitian ini merupakan suatu studi fermentasi dalam pembuatan pikel labu siam (Sechium edule SW) dan diharapkan dengan penelitian ini dapat dihasilkan suatu produk fermentasi yang baru, khususnya sayur termentasi.
Keyword: Fruit fermentation, Sechium edule, labu siam

Judul: Pengaruh konsentrasi dan lama perendaman dalam larutan dekstrin pada proses pembuatan keripik labu siam sechium edule
Abstrak: Labu siam adalah salah satu sayuran buah yang banyak diusahakan petani dalam berbagai skala usaha tani. Data produksi dan luas areal tanam labu siam di seluruh Indonesia mencapai 7 835 Ha dengan produksi 172 125 ton (Deptan, 2002). Air merupakan komponen terbesar dari komposisi gizi buah labu siam yang mencapai 92,30 % (Depkes, 1981). Hal tersebut menyebabkan buah labu siam mudah mengalami kerusakan apabila tidak cepat diolah sehingga diperlukan suatu penanganan pasca panen yang dapat mempertahankan mutu, daya simpan dan daya guna. niversity Penelitian ini bertujuan untuk mendapatkan kondisi proses terbaik dalam pembuatan keripik labu siam, mengetahui sifat fisik, kimia dan organoleptik keripik labu siam serta mengetahui respon panelis terhadap produk keripik labu siam. Rancangan percobaan yang digunakan adalah rancangan acak lengkap faktorial dengan dua faktor. Faktor pertama adalah konsentrasi larutan dekstrin yang terdiri dari tiga taraf yaitu 20% (A1), 25% (A2), dan 30% (A3). Faktor kedua adalah lama perendaman dalam larutan dekstrin yang terdiri dari tiga taraf yaitu 1 jam (B1), 1,5 jam menit (B2) dan 2 menit (B3). Analisa yang dilakukan meliputi analisa rendemen, kadar air, kadar abu, kadar lemak dan warna. Uji Organoleptik dilakukan terhadap 30 panelis agak terlatih dengan metode uji hedonik yang terhadap warna, kerenyahan, tekstur, rasa dan aroma. Kondisi terbaik proses pembuatan keripik labu siam adalah perendaman dalam larutan asam sitrat pada konsentrasi 1,5% selama 15 menit, pembekuan bahan selama 12 jam pada suhu -20°C, perendaman dalam larutan CaO pada konsentrasi 20% selama 30 menit, kondisi penggorengan hampa pada suhu 80°C selama 30 menit dalam tekanan 700 mmHg. Pemilihan produk terbaik diperoleh dari hasil perhitungan dengan menggunakan metode pembobotan pada atribut uji hedonik yang terdiri atas warna, kerenyahan, tekstur, aroma dan rasa. Formulasi terbaik tersebut adalah perlakuan perendaman dalam larutan dekstrin pada konsentrasi 20% dengan lama perendaman 1 jam. Dari kondisi perlakuan terbaik diperoleh rendemen 7,85 %, kadar air 2,78 %, kadar abu 2,34% dan kadar lemak 45,53 %. Warna keripik memiliki kecenderungan nilai L 57,03, nilai a berkisar -4,055 dan nilai b berkisar 40,51. Secara keseluruhan produk keripik labu siam yang dihasilkan memiliki nilai rendemen 5,49-7,85%, kadar air 2,32-3,71%, kadar abu 1,81-2,49%, kadar lemak 25,11-45,53 %. Warna keripik memiliki kecenderungan nilai L antara 55,35 sampai 66,34, nilai a berkisar -6,11 sampai -2,91 dan nilai b berkisar 37,89 - 44,715. Berdasarkan analisis keragaman, faktor konsentrasi larutan dekstrin, lama perendaman dan interaksi keduanya tidak berpengaruh nyata terhadap kadar air, kadar abu warna tetapi berpengaruh nyata terhadap rendemen dan kadar lemak pada taraf yang sama (a = 0,05)...dst
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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