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All Journal JURNAL INTEGRASI PROSES Jurnal Dinamika Penelitian Industri
Yandriani Yandriani
Sriwijaya university
Industrial & Manufacturing Engineering Other

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PENGARUH JENIS NUTRIENT DAN WAKTU TERHADAP EFISIENSI SUBSTRAT DAN KINETIKA REAKSI FERMENTASI DALAM PRODUKSI BIOETANOL BERBAHAN BAKU BIJI DURIAN Prahady Susmanto; Yandriani Yandriani; Badria Dania; Ellen Ellen
JURNAL INTEGRASI PROSES VOLUME 9 NOMOR 2 DESEMBER 2020
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jip.v9i2.8056

Abstract

Bioethanol is one source of energy that can be obtained from vegetable fermentation. This bioethanol production utilizes durian seed waste as a fermentation media. The purpose of this study was to determine the concentration of urea and NPK and the best time in making bioethanol from durian seeds by Saccharomyces cerevisiae, to study the kinetics of the fermentation reaction, determine the efficiency of the substrate during the fermentation process, and to determine the levels of bioethanol that can be produced from durian seed flour. This research was conducted by adding nutrients in the form of urea and NPK, respectively 3% and 4% with fermentation time for 48, 72, 96, 120, 144, and 168 hours. Based on the research results, the levels of starch contained in durian seed flour were 45.38%. Conversion of starch to sugar by 37,8167 grams. The best substrate efficiency is obtained by urea 3% with 120 hours fermentation time of 99,24% with residual sugar content of 0,76%. The highest levels of bioethanol in the urea sample were obtained at the addition of 3% urea, ethanol content of 57,1429% with a fermentation time of 120 hours and a Vmax of 1,2397 g/mL.hour. The best substrate efficiency obtained in NPK samples was found in NPK 4% fermentation time 144 hours by 99,16% with residual sugar content of 0,84%. The highest levels of bioethanol in NPK samples were obtained by adding 4% NPK, ethanol content of 48,5714% with 144 hours fermentation time and Vmax of 1,0116 g/mL.hour.
EFEKTIVITAS GRAFTING ASAM OLEAT MENGGUNAKAN INISIATOR BENZOIL PEROKSIDA DAN BAHAN PENGISI MONTMORILLONITE PADA MODIFIKASI CYCLIC NATURAL RUBBER SEBAGAI PRINT BINDER MATERIAL POLIOLEFIN Prahady Susmanto; Yandriani Yandriani; Adib Ghifar
Jurnal Dinamika Penelitian Industri Vol 33, No 1 (2022): JURNAL DINAMIKA PENELITIAN INDUSTRI
Publisher : Balai Riset dan Standardisasi Industri Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28959/jdpi.v33i1.7698

Abstract

Salah satu metode untuk melakukan modifikasi pada senyawa polimer adalah melalui grafting. Metode grafting sendiri memiliki konversi yield yang paling tinggi dibandingkan metode modifikasi polimer yang lain. Penelitian ini dilakukan untuk mengetahui efektifitas dari produk modifikasi Cyclic Natural Rubber dengan menggunakan metode grafting asam oleat dan inisiator benzoil peroksida serta bahan pengisi montmorillonite untuk digunakan sebagai print binder pada material poliolefin. Proses grafting dilakukan pada suhu 90℃ dengan waktu reaksi 1 jam. Dilakukan grafting asam oleat sendiri dikarenakan asam oleat dapat meningkatkan sifat fisik dan kompabilitas karet sebagai binder. Produk hasil grafting dikarakterisasi menggunakan Analisa FTIR dan SEM, dan juga dihitung persentase derajat grafting untuk mengetahui total asam oleat yang telah tergrafting. Efektifitas produk diuji pada lapisan polistirena menggunakan Analisa tensile strength dan persentase elongasi. Hasil penelitian menunjukkan bahwa penambahan monomer dan inisiator mampu menghasilkan derajat grafting tertinggi pada variasi 20phr monomer dan 4 phr inisiator yaitu 4,45%. Penambahan monomer dan inisiator ini juga memiliki efektivitas yang baik sebagai print binder dibuktikan pada variasi 20phr monomer dan 3 phr inisiator menunjukan angka tensile strength yang tinggi yaitu 306,54KPa.
Co-Authors Adib Ghifar Badria Dania Ellen Ellen Prahady Susmanto