Judul: Profil Senyawa Bioaktif Ekstrak Etanol Tanaman Brokoli (Brassica oleracea var. Italica) dengan Pemberian Pupuk Biokonversi Maggot Black Soldier Fly.
Abstrak: Brokoli merupakan tanaman hortikultura yang ditanam di kawasan dataran tinggi, salah satunya di Desa Sindangjaya Kecamatan Cipanas Kabupaten Cianjur. Penelitian bertujuan menganalisis pengaruh aplikasi pupuk kompos hasil biokonversi Black Soldier Fly (BSF) terhadap tinggi tanaman, jumlah daun, bobot basah, bobot kering serta persentase berbunga dan kandungan senyawa bioaktif ekstrak etanol tanaman brokoli. Penanaman brokoli dilakukan selama 14 minggu dengan 3 macam perlakuan yaitu kontrol (P1), penambahan pupuk kandang (P2) dan penambahan pupuk biokonversi maggot (P3). Setiap perlakuan dilakuan ulangan sebanyak 3 kali yang di dalamnya terdapat 10 tanaman dan dilakukan dalam 3 kelompok sehingga terdapat 270 tanaman brokoli yang ditanam. Penambahan pupuk biokonversi maggot mampu meningkatkan produksi tanaman sesuai dengan hasil penelitian yang berpengaruh nyata pada tinggi tanaman, jumlah daun, bobot basah dan kering serta persentase berbunga. Metode LC-MS/MS yang digunakan untuk identifikasi senyawa aktif pada ekstrak etanol 80% brokoli menunjukkan terdapat 58 senyawa bioaktif yang masuk ke dalam golongan metabolit sekunder, asam amino, lipid, amina, asam karboksilat, purin, pirimidin dan produk turunan klorofil.
Keyword: broccoli, LC-MS/MS, secondary metabolites, maggot bioconversion fertilizers

Judul: Morphological Profile and Bioactive Compounds of  Lemongrass (Cymbopogon citratus) with the Application of Black Soldier Fly (Hermetia  illucens) Maggot Biocontrol Fertilizer
Abstrak: Maggot Black Soldier Fly (BSF) sebagai agen biokonversi limbah organik mampu menghasilkan bahan stabil, seperti kompos. Serai dapur merupakan tanaman rempah yang diketahui memiliki banyak manfaat terhadap kesehatan. Penelitian ini bertujuan menganalisis pengaruh aplikasi kompos hasil biokonversi maggot BSF terhadap profil senyawa bioaktif ekstrak etanol tanaman serai dapur. Metode penanaman serai dapur dilakukan di lahan pertanian Desa Sindangjaya yang disusun berdasarkan rancangan kelompok lengkap teracak dengan faktor tunggal. Pengaplikasian pupuk kompos hasil biokonversi maggot BSF pada media tanam serai dapur berpengaruh nyata terhadap pertumbuhan tinggi tanaman (usia 4, 6, 8, 10, 12 MST) dan bobot basah (batang, daun, akar, dan total rumpun). Ekstraksi dilakukan dengan metode maserasi menggunakan pelarut etanol 96% yang selanjutnya diidentifikasi menggunakan instrumen LC-MS/MS. Perbedaan perlakuan aplikasi pupuk memengaruhi komposisi senyawa bioaktif tanaman ini. Secara keseluruhan teridentifikasi sebanyak 48 senyawa yang berhasil teridentifikasi dan pada masing-masing variabel sejumlah 37 senyawa (P1), 30 senyawa (P2), dan 35 senyawa (P3). Senyawa termasuk golongan asam amino, terpenoid, alkaloid, kuinolin, karbohidrat, metoksifenol, benzodioxole, difenilmetana, steroid, dan senyawa golongan lain., Maggot Black Soldier Fly (BSF) as a bioconversion agent of organic waste is able to produce stable materials, such as compost. Lemongrass is a spice plant that known to have many health benefits. This study aims to analyze the effect of the application of BSF maggot bioconverted compost on the profile of bioactive compounds in ethanol extract of lemongrass plants. Lemongrass cultivation method is carried out on the agricultural land of Sindangjaya Village which is prepared based on the randomized complete group design with a single factor. The application of BSF maggot bioconverted compost to the growth medium in lemongrass significantly affected the growth of plant height (age 4, 6, 8, 10, 12 WAP) and wet weight (stems, leaves, roots, and total clumps). Extraction was performed by maceration method using 96% ethanol solvent which further identified using the LC-MS/MS instruments. Overall, 48 compounds were identified and in each variable there are 37 compounds (P1), 30 compounds (P2), and 35 compounds (P3). Compounds are including to the groups of amino acids, terpenoids, alkaloids, quinolines, carbohydrates, methoxyphenol, benzodioxole, diphenylmethane, steroids, and other group compounds.
Keyword: BSF, maggot, profil senyawa, pupuk kompos, serai dapur

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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