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All Journal Jurnal Ilmu Pertanian Indonesia PROSIDING SEMINAR KIMIA Jurnal Sisfokom (Sistem Informasi dan Komputer)
Riska Diana
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management

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Kecernaan Pakan dan Pertumbuhan Ikan Patin Pangasius hypopthalmus yang Diberi Tepung dan Ekstrak Daun Kayu Manis Cinnamomum burmannii Mia Setiawati; Dedi Jusadi; Riska Diana
Jurnal Ilmu Pertanian Indonesia Vol. 21 No. 3 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (963.915 KB) | DOI: 10.18343/jipi.21.3.219

Abstract

This research was conducted to evaluate the digestibility and growth performance of catfish Pangasius hypopthalmus fed on Cinnamomum burmannii leaf powder and extract. Ten catfish with an average body weight of 0.02 ± 11.24 g were stocked into the 40 × 50 × 35 cm aquarium. Fish were fed on the diet contained of 0.1% cinnamon extract, 1% cinnamon powder and without cinnamon leaf. Fish were fed on those diets at satiation with times a day. Fish were cultured for 60 days. The results showed the bacterial total number in the gut of fish fed diet contained 0.1% cinnamon leaf extract was 7.8 x 107 cfu/g, greater than other treatments. Protein digestibility in 0.1% cinnamon extract increase 4.12% and body protein 58.72%. The whole body of fish fed on cinnamon leaf extract contained higher protein and lower fat. There was no different result in the growth of catfish
Implementasi Algoritma Fisher-Yates Pada Aplikasi Penerimaan Mahasiswa Baru Berbasis Android Studi Kasus STMIK Atma Luhur Pangkalpinang Laurentinus Laurentinus; Riska Diana
Jurnal Sisfokom (Sistem Informasi dan Komputer) Vol 7, No 2 (2018): September
Publisher : ISB Atma Luhur

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1303.705 KB) | DOI: 10.32736/sisfokom.v7i2.575

Abstract

STMIK Atma Luhur merupakan perguruan tinggi yang menyelenggarakan pendidikan untuk mempersiapkan sarjana komputer yang dapat memenuhi tuntutan dunia kerja terhadap para profesional yang memiliki kemampuan manajerial di bidang Teknologi Informasi. Proses penyaringan calon mahasiswa baru merupakan salah satu proses yang ada di instansi pendidian sehingga calon mahasiswa yang terpilih sesuai kriteria yang ditentukan. Tetapi sayangnya, kurangnya efisiensi informasi terhadap Penerimaan calon mahasiswa baru yang terdiri dari 5 kabupaten yang berada di 2 pulau yang terpisah ratusan kilometer, maka dibutuhkan Sistem Penerimaan Mahasiswa Baru berbasis mobile dimana calon mahasiswa dapat melakukan seluruh proses pendaftaran secara cepat. Aplikasi ini dibuat dengan menggunakan model waterfall serta metode berorientasi objek dengan Tools UML. Pada aplikasi berbasis android ini Sistem pelayanan Penerimaan Calon  Mahasiswa Baru akan sangat  mudah dilakukan, diakses di mana saja dan tidak harus datang ke kampus. Disamping itu juga, aplikasi yang dibuat menerapkan Algoritma Fisher Yattes yang digunakan untuk pengacakan soal pada proses Test online, Kelebihan Algoritma Fisher-Yates adalah efektifitas dari metode pengacakannya serta kompleksitas algoritmanya yang optimal yaitu O (n). Maka dapat disimpulkan bahwa perencanaan sistem Penerimaan calon mahasiswa baru pada STMIK Atma Luhur Pangkalpinang berbasis android ini dapat memaksimalkan kegiatan dalam melayani calon mahsasiswa baru untuk melakukan Pendaftaran dan  ujian seleksi masuk secara online.
AKTIVITAS SENYAWA BIOAKTIF DARI EKSTRAK ETIL ASETAT DAUN YAKON (Smallanthus sonchifolius) SEBAGAI PENGHAMBAT ENZIM α-GLUKOSIDASE Riska Diana; Lilik Sulastri; Partomuan Simanjuntak
PROSIDING SEMINAR KIMIA Vol 1 No 2 (2023): Prosiding SNKT II 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Yakon (Smallanthus Sonchifolius) leaves in Indonesia, better known as insulin leaves, scientifically have various properties and one of them is antidiabetic. This study aims to determine the activity of secondary metabolites contained in the ethyl acetate extract of yakon (Smallanthus Sonchifolius) leaf as an inhibitor of the -glucosidase enzyme. Yakon leaf ethyl acetate extract using eluent from TLC results. Until several sub-factions are obtained. These sub-fractions were combined in TLC and tested for activity. The sub-fraction with the best activity in Back column chromatography and TLC and tested until the IC50 value is obtained. The results showed that the ethyl acetate extract of yakon leaves had inhibitory activity of the -glucosidase enzyme with an IC50 of 45,67 ppm. The results of column chromatography separation showed that sub-fraction 6.5 was a sub-fraction with an IC50 value of 42,23 ppm. Conclusion: Yakon leaf ethyl acetate extract had better activity than purified F6.5 and acarbose as a positive control with an IC50 value of 21,36 ppm. Keywords : Smallanthus sonchifolius, α -glucosidase inhibitory enzyme, IC50, Indonesian medicinal plant
Co-Authors DEDI JUSADI Laurentinus, Laurentinus Lilik Sulastri Mia Setiawati Partomuan Simanjuntak