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All Journal TEKNIK GEMA TEKNOLOGI MODUL METANA Jurnal Mahasiswa Jurusan Arsitektur Journal of Environmental Engineering and Sustainable Technology Jurnal Ruas (Review of Urbanism and Architectural Studies) The Indonesian Journal of Planning and Development Local Wisdom : Jurnal Ilmiah Kajian Kearifan Lokal ARTEKS : Jurnal Teknik Arsitektur at-tamkin: Jurnal Pengabdian kepada Masyarakat Jurnal Darma Agung Jurnal Lingkungan Binaan Indonesia Jurnal Desain Lingkungan Binaan Indonesia (JDLBI)
Herry Santosa
Jurusan Teknik Kimia Fakultas Teknik UNDIP Jl. Prof. Sudharto, S.H. Tembalang Semarang 50239 Telp/Fax (024) 7460058
Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : TEKNIK

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OPTIMASI VARIABEL YANG PALING BERPENGARUH PADA PEMBUATAN BIODIESEL DARI MINYAK BIJI RANDU DENGAN PROSES TRANSESTERIFIKASI Sofyan, Mudzofar; Tanjung, Ilham; Santosa, Herry
TEKNIK Vol 35, No 1 (2014): (July 2014)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (895.753 KB) | DOI: 10.14710/teknik.v35i1.7028

Abstract

[Title: Biodiesel Production from Kapok Seed Oil with KOH Catalyst Using Two Steps Transesterification Process] Biodiesel is one of diesel fuel alternative made from renewable resources such as vegetable oils and animal fats. One of the natural ingredients that can be used as a material in the production of biodiesel is kapok seed. The existence of relatively abundant raw materials is a great opportunity to be developed into alternative energy options which developed on a commercial scale. Biodiesel from kapok seed oil can be made through a two-stage transesterification reaction which helped by using a base catalyst. This research aims to characterize the kapok seed oil, determine the most influential variables between temperature, the ratio of methanol-oil, and time against yield by the factorial design method, optimization variables that most influence on yield, and characterize the biodiesel. Two-stage transesterification process using KOH as the catalyst with changing variables: temperature, methanol-oil ratio, and time. The result showed that kapok seed oil has FFA content: 17.97% and a saponification number: 172.55 mgKOH/g. Most influential variable is the variable of time. At the variable optimization of time, the result were optimally obtained at the 105th minutes with yield: 77.39%. The characterization results of biodiesel’s product show from seven parameters of testing, four parameters are required in accordance with SNI.
PENGARUH VARIABEL OPERASI PADA PROSES MODIFIKASI PATI GARUT DENGAN METODE CROSS LINKING PENGGANTI TEPUNG TERIGU SEBAGAI BAHAN BAKU PADA INDUSTRI BAKERY Rakhmawati, Putri; Octaviani, Risa Dwi; Santosa, Herry
TEKNIK Vol 35, No 1 (2014): (July 2014)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (460.543 KB) | DOI: 10.14710/teknik.v35i1.7047

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[Title: Operating Variables Effects on Process Modification of Arrowroot Startch by Cross Linking Method for Substituting Wheat Flour as Bakery Industry Raw Material] Arrowroot starch is local food comodity that has potential for many use.The advantage of arrowroot starch are free gluten and low glisemic index. But, arrowroot starch has disadvantage swelling power and solubility doesn’t criteria. In this study, an attempt is made to change the arrowroot starch raw material for bakery industry by using cross-linking methods. The purpose of this research is to study the effect of reaction temperature, reaction time, and volume gingerol of swelling power and solubility. To achieve the goal of research through three stages: (1) The characteristic of arrowroot, (2) The phase of modified arrowroot starch with method Cross Linking is done to change the properties of arrowroot starch in accordance with the specification qualify as bakery industry raw materials, (3) Analysis phase to modified arrowroot starch products which include swelling power and solubility. To achieve swelling power and solubility for raw material bakery industry, cross linking process to Arrowroot strach better are reaction temperature at 400C, reaction time at 90 minutes and oleoresin volum at 0,3 ml. 
Co-Authors Abyor H, Noer Adipandang Yudono Agung Murti Nugroho Al Farisa, Zai Dzar Antariksa Sudikno Baskoro Azis Budi Tri Wijaya Damayanti Asikin Deandra Putri, Putu Ratih Dika, Johan Wayan Dwi Handono, Sigit Firman Ema Yunita Titisari F, Redi Sigit. FATRA NONGGALA PUTRA Fauzul Rizal Sutikno Fifi Damayanti, Fifi Giriwati, Novi Sunu Sri Guyana, Nurmy Lailati Hadi Suyono Hasbi Ashidqi Bastian, Hasbi Ashidqi Ilga Mega Kusuma, Ilga Mega Ilham Tanjung Indradi Wijatmiko Ismu Rini Dwi Ari Isna Johanda, Almira Firdania Jenny Ernawati Lisa Dwi Wulandari Maulana, Eka Moch. Agus Choiron Mudzofar Sofyan Muhammad Satya Adhitama Nasution, Azizi Aqilalhaq Noer Abyor Handayani Novi Sunu Sri Giriwati Noviani Suryasari Pratiwi, Magvira Ardhia Putri Rakhmawati Putri, Pipiet Arini Ramadhanty, Fakhita Aulia Redi Sigit Febrianto Risa Dwi Octaviani Sagita, Alferina Azalia Shafa, Ramzi Sheira, Monica Triandriani Mustikawati Wahyuni Eka Sari Widiana, Fenny Yasykur, Bulan Anindita Yusran, Yusfan Adeputera Zuliana, Eni