Judul: Molecular Docking of Garcinia atroviridis Active Compound as Potential Inhibitor of Pancreatic Lipase in Antiobesity
Abstrak: Obesitas merupakan penyakit yang disebabkan oleh penimbunan lemak dalam jangka waktu panjang. Salah satu cara mengobati obesitas yaitu dengan menginhibisi enzim lipase pankreas yang berfungsi dalam menghidrolisis triasilgliserol menjadi asam lemak. Penelitian bertujuan mengidentifikasi senyawa aktif ekstrak etanol buah asam gelugur (Garcinia atroviridis) dan menentukan senyawa yang berpotensi sebagai inhibitor lipase pankreas dengan pendekatan penambatan molekuler. Identifikasi senyawa dilakukan dengan metode LC-MS/MS QTOF menunjukkan terdapat 18 senyawa aktif yang akan digunakan sebagai ligan dalam penelitian. Senyawa aktif hasil identifikasi dan studi literatur diuji dengan penambatan molekuler, prediksi bioavailabilitas, dan toksisitas. Sebanyak 4 senyawa aktif lolos ketiga pengujian dengan parameter afinitas pengikatan (ΔG), konstanta disosiasi (Kd), interaksi ligan-reseptor, lipinski rule of 5, inhibitor hERG, karsinogenesitas, dan kategori oral akut, yaitu 2-hydroxymethyl-5-methoxyfuranochrome glucoside, niazirin, 1-(3,4-dimethoxyphenethyl)-5-oxo-3-pyrrolidinecarboxylic acid, dan leucylleucylvaline. Senyawa 2-hydroxymethyl-5-methoxyfuranochrome glucoside menjadi senyawa dengan potensi terbaik sebagai inhibitor lipase pankreas.
Keyword: Garcinia atroviridis, inhibitor lipase pankreas, penambatan molekuler, Garcinia atroviridis, molecular docking, pancreatic lipase inhibitor

Judul: Identifikasi Senyawa Aktif Lengkuas (Alpinia galanga) Dengan LC-MS dan Potensinya Sebagai Inhibitor Lipase Pankreas Secara In Silico
Abstrak: Prevalensi penderita obesitas yang terus meningkat setiap tahunnya, serta risiko komplikasi yang ditimbulkan membuat perhatian besar saat ini. Orlistat berefek buruk karena sifatnya yang bekerja dengan menginhibisi enzim lipase pankreas secara ireversibel. Lengkuas banyak ditemukan di Indonesia diketahui dapat berperan sebagai antiobesitas. Penelitian ini bertujuan mengidentifikasi senyawa aktif lengkuas yang berpotensi memiliki aktivitas inhibisi enzim lipase pankreas dengan menggunakan YASARA. Senyawa aktif lengkuas diekstrak menggunakan etanol 70% dan diidentifikasi menggunakan LC-MS/MS QToF serta dilakukan studi pustaka. Sebanyak 8 senyawa berhasil diidentifikasi menggunakan LC-MS/MS QToF dan termasuk golongan polifenol, fenolik, terpen, dan flavonoid, serta terdapat 38 senyawa yang hasil studi pustaka. Terdapat 4 senyawa aktif lengkuas memiliki potensi antiobesitas dengan empat yang terbaik yaitu, galangin, galaganol C, isorhamnetin, dan kampferide. Galangin menjadi senyawa yang paling potensial menjadi kandidat antiobesitas pada tanaman lengkuas., The prevalence of obesity, which continues to increase every year, as well as the risk of complications caused by it, is of great concern today. Orlistat has adverse effects because it works by irreversibly inhibiting the pancreatic lipase. Galangal, found in Indonesia, is known to act as an antiobesity agent. This study aimed to identify active compounds of galangal that have the potential to inhibit pancreatic lipase using YASARA. The active compounds of galangal were extracted using 70% ethanol and identified using LC-MS/MS QToF and literature study. A total of 8 compounds were successfully identified using LC-MS/MS QToF and included polyphenols, phenolics, terpenes, and flavonoids, and there were 38 compounds from literature studies. There are 4 active compounds that have antiobesity potential with the four best ones, namely, galangin, galaganol C, isorhamnetin, and kaempferol. Galangin is the most potential compound to be an antiobesity candidate in galangal plants.
Keyword: Alpinia galanga, pancreatic lipase, antiobesity, molecular docking

Judul: Pola Pewarisan Karakter Suara Kicauan Pada Burung Perkutut
Abstrak: Turtledove (Geopelia striata) is a singing birds that has a better melodious voice. The inheritance of this character has not been determined, so that research on the voice inheritance is important. This study was aimed to characterize the voice patterns turtledove. Materials consisted of 12 pairs of parents and their progenies. Twelve of their turtledove was ranked based on their sound quality. The parameters observed included voice patterns, the presence of elements of sound, the type of sound, harmonious sound (frequency and level of sound intensity) and duration of the total sound. Voice analysis was done by using computer software Cool Edit Pro version 2.1. Sound visualization was displayed in waveform shape. Sound intensity level was determined using the formula TI = 10 log I/I0, with the value I0 at 10-12 W/m2. Based on the inheritance analysis sire voices is a better chance in herediting of the voice and the number of beats sound of the middle voice. Dam plays an role in giving voice rhythm modification and sound tip inheritance. Based on the sound analysis, sound quality the voice rank from the highest to the lowest were: ♂AK, ♂ FQ, ♂HHa, ♂ ISS, ♂HRR, ♂ BL, ♂CM, ♂ EQ, ♂GQ, ♂DO, ♂DN, and ♂DP. The frequency value and the highest intensity level displayed by AK turtledove were 929.49 Hz and 91.5 dB, whereas the lowest value displayed by ♂DP were 633.59 Hz, and 67.83 dB. The best rhythm of the turtledove indicated by high frequency with a stable pattern, harmonious the intonation, as well as clear basic voice.
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