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All Journal Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Serambi Engineering
M. Dani Supardan
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Other

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Influence of co-solvent on reactive-extraction of Jatropha curcas L. seed for biodiesel production M. Dani Supardan; . Satriana; Ryan Moulana
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.433 KB)

Abstract

In this study, experimental studies have been carried out to improve the yield of biodiesel by addition of co-solvent to enhance the miscibility of the phases and speed up the reaction rate. The co-solvent used are tetrahydrofuran and hexane. The experimental result shows that the transesterification rate was improved when compared to the system without cosolvents. The biodiesel produced in the experiment was analyzed by gas chromatography-mass spectrometry (GC-MS), which showed that methyl oleate was the highest compound in biodiesel.
Antifungal properties of cassava starch edible film incorporated with lemongrass essential oil YULIA ANNISA; ISMAIL SULAIMAN; NOVI SAFRIANI; M. DANI SUPARDAN
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 1 (2014): Engineering
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (25.555 KB)

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The aim of this study was to evaluate the antifungal properties of cassava edible film incorporated with lemongrass essential oil against two strains of fungal, Trichoderma sp and Penicillium sp. Edible films were prepared from a mixture of cassava starch and glycerol. Lemongrass oil (0.5%, 1%, 2%, 3% and 4% w/w) was added to edible films as natural antifungal agent. The agar disc diffusion method was used to determine the antifungal activity of cassava starch edible film. Antifungal behaviour was determined by the mold absences upon the film and by the inhibition zone formed. The experimental results showed that Trichoderma sp and Penicillium sp was not appear above the film until the fourth day. However, cassava starch edible films containing lemongrass oil did form any inhibition zone toward both of fungal
Karakterisasi Tanah Diatom dan Aplikasinya Pada Industri Minyak Goreng Lisma luciana; Farid Maulana; M. Dani Supardan
Jurnal Serambi Engineering Vol 1, No 2 (2017)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v1i2.499

Abstract

Penelitian tentang aktivasi bahan pemucat tanah diatom dan aplikasinya pada industri minyak goreng curah dibuat dengan memodifikasi tanah diatom alam dengan 4 model pengaktifan. Pengaktivan model 1 dan 2 ditambahkan dengan H2SO4 dan H2O2 dan kemudian dipanaskan hingga suhu 100Co selama satu jam untuk model 1, sedangkan pada model 2 sampel tanah diatom dipanaskan hingga suhu mencapai 550Co selama dua jam. Pada aktivasi model 3 dan 4 dengan penambahan larutan NaOH dan MnCL2 dengan pembakaran 100Co untuk model sampel 3 dan 550Co untuk model 4, dimana hanya membedakan lamanya waktu pebakaran. Pengurangan jumlah zat warna dalam minyak goreng curah dilakukan dengan memvariasikan berat absorben 2.5, 5, 7.5, dan 10g dan temperatur adsorpsi100oC, 110 oC, 120 oC dan 130 oC. Pada penelitian ini dilakukan karakterisasi terhadap adsorben yang terdiri dari tanah diatom alam dan tanah diatom yang telah dimodifikasi.Karakterisasi dilakukan dengan menggunakan instrumen Scanning Electron Microscope (SEM-EDAX), Difraksi sinar-X(XRD, Fourier Transform Infrared (FTIR) dan X-Ray Fluoresensi (XRF)
Co-Authors . Satriana Farid Maulana Ismail Sulaiman Lisma luciana Novi Safriani Ryan Moulana Yulia Annisa