Found 4 Documents

Optimization Of Rubber Seed (Hevea Brasiliensis) Drying In Rubber Seed Oil Extraction For Chamois Leather Tanning Suparno, Ono; Kartika, Ika Amalia; Muslich, .; Andayani, Gita N.; Sofyan, Kurnia
Jurnal Teknologi Industri Pertanian Vol 19, No 2 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Jurnal Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.448 KB)


Drying is one of the important steps in oil extraction using mechanical pressing.  It can decrease oil hydrolysis and increase yield of oil due to the decrease of oil affinity on the material surface and protein coagulation.  Therefore, the oil will be released easily from seed in the oil extraction using the hydraulic pressing. Objectives of this research were to determine a combination of temperature and duration of drying of rubber seed prior to oil extraction in order to produce oil with the best yield and physico-chemical properties for chamois leather tanning, and to observe the potency of the rubber seed oil as a leather tanning agent.  This research consisted of sortation of rubber seed, rubber seed drying using an oven, oil extraction using a hydraulic pressing, and analysis of physico-chemcal properties of the oil and residue of rubber seed after extracting its oil.  Results of the research shows that the higher temperature and duration of rubber seed drying, the higher oil content in residue and colour of the oil, whereas yield, iodine number, acid number, free-fatty acid content of the oil, as well as water content of the rubber seed decreased.  Based on the highest of yield and iodine number, the best treatment for the rubber seed drying was drying at 70oC for one hour.  This condition resulted in oil with physico-chemical characteristics of oil: yield of 20.52%, colour of  4077 PtCo unit; density of 0.924, viscosity of 160 centipoises, iodine number of 146, acid number of 2.08, FFA of 1.04 %, saponification number of 184.58, and peroxide number of 30.46.  The treatment gave oil content in the residue of   9.84 %. The rubber seed oil was potential for substituting fish oil as tanning agent, as it had iodine number of higher than 120.Keywords: drying, rubber seed, oil, oil tanning, tanning agent, chamois leather.
Kajian Penerapan Produksi Bersih di Stasiun Gilingan pada Proses Produksi Gula Yuliandari, Puspita; Fauzi, Anas M.; Suprihatin, Suprihatin; Suparno, Ono
JIEMS (Journal of Industrial Engineering and Management Systems) Vol 3, No 1 (2010): Journal of Industrial Engineering and Management Systems (JIEMS)
Publisher : Universitas Bunda Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30813/jiems.v3i1.73


The development of sugar industries in Indonesia is influenced by the capability of increasing sugar productivity every year. This increasing is important to handle problem that happened. One of the solutions of the problem, such as sugar loss and inefficiency energy was application of the cleaner production. PG. Tersana Baru have been doing efforts to minimize fuel consumption in milling station. This research objective were to design a processing improvement in milling station through cleaner production approach strategy in reducing sugar loss and increasing energy (steam and fuel) uses efficiency and to build a dynamic model on the influence of imbibitions water to water content of bagasse and sucrose content in milling station at PT. PG. Rajawali II Unit PG. Tersana Baru, West Java. The results of this research indicated a potency for application of a cleaner production approach in PG. Tersana Baru based data collected during 2007 milling season, of which the optimum of imbibitions water was 22.64 %. That condition was achieved in the 8th period of production with fuel energy consumption of 298,466 kcals/ton sugar cane. At this condition, there was possibility for annual energy consumption to be reached by 227,418 kcal/ton sugar cane or equivalent to Rp 764,184,666,153.00. The addition of water imbibitions at the milling process in the dynamic system simulation model was carried out at the interval of 21.20 – 35%. The results in water contents of bagasse of 49.21 – 62.74% and its sucrose contents of 0 – 5.18%.Keywords: Cleaner Production Approach, Imbibitions Water, Efficiency Energy Consumption, Dynamic System Simulation Model
Application of Microwave Heating in Biomass Hydrolysis and Pretreatment for Ethanol Production Hermiati, Euis; Mangunwidjaja, Djumali; Sunarti, Ttiti C; Suparno, Ono; Prasetya, Bambang
ANNALES BOGORIENSES Vol 14, No 1 (2010): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.18 KB) | DOI: 10.1234/33


Recently, due to depletion of  fossil derived energy stock in the world, there are growing  interests in utilizing biomass sources of bioethanol. There are basically two types of biomass that are usually used or converted to ethanol, starchy and lignocellulosic biomass. The conversion of starchy and lignocellulosic materials are widely explored,  however,  there  are  still  some  drawbacks,  such  as  high  enzyme  cost  and  intensive  energy  needed. Therefore, lower cost as well as energy and time efficient process technology in biomass conversion to ethanol  is important in enhancing the use of biomass to substitute fossil fuel. Microwave heating offers some advantages to overcome these drawbacks, especially due to its quick heat transfer and its heating selectivity. In conventional heating the  heat  was  transferred  through  conduction  or  convection  process  which  took  longer  time.  Thus,  by using microwave, degradation of starchy and lignocellulosic biomass could be completed in shorter time than by using conventional heating method. The roles of microwave heating in the degradation of biomass, especially starchy and lignocellulosic biomass  and its relation to the hydrolysis and pretreatment of that particular biomass for ethanol production are reviewed and discussed.   Keywords: biomass, pretreatment, ethanol, microwave
Strategi Pengembangan Usaha Tani Tomat Dalam Upaya Menembus Singapura (Studi Kasus Mitra Tani Parahyangan) Chalids, Ibrahim; Najib, Mukhamad; Suparno, Ono
Jurnal Aplikasi Bisnis dan Manajemen (JABM) Vol 5, No 1 (2019): JABM Vol. 5 No. 1, Januari 2019
Publisher : School of Business, Bogor Agricultural University (SB-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17358/jabm.5.1.24


The objectives of this study were 1) to identify strengths, weaknesses, opportunities and threats of the Mitra Tani Parahyangan (MTP) in its efforts to expand its export market, 2) to formulate strategies that could be utilized by MTP, 3) to prioritize the strategies that could be applied by MTP. Methodology employed included internal and external analysis and industrial analysis, SWOT matrices, followed by determination of decision priority using Analytical Hierarchy Process (AHP). Based on the result of external environment analysis, there were five opportunity factors and seven threat factors which became the strategic issues. Meanwhile, according to the result of internal environment analysis, there were four strength factors and five weakness factors which became the strategic issues. The result of EFE matrix showed that the company’s ability to respond to external factors was reasonably good in harnessing opportunities and avoiding threats. On the other hand, the result of IFE matrix showed that the company’s current internal position is weak. Through the matching of strategic issues within the internal and external environment, and seven alternative strategy formulations that can be applied by the company were generated. Collaborating with domestic forwarder agents is an alternative priority strategy chosen through AHP analysis tools.Keywords: AHP, SWOT, Tomato, OVOPAbstrak: Tujuan dari penelitian ini adalah 1) mengidentifikasi kekuatan, kelemahan, peluang, dan ancaman Mitra Tani Parahyangan (MTP) dalam upaya mengembangkan ekspansi pasar ekspor, 2) memformulasikan strategi-strategi yang dapat dijalankan oleh MTP, 3) menentukan prioritas strategi yang dapat dijalankan oleh MTP. Metode penelitian ini menggunakan analisis internal eksternal dan analisis industri, matriks SWOT, dan pengambilan keputusan dengan Analytical Hierarchy Process (AHP). Berdasarkan hasil analisis lingkungan eksternal didapati lima faktor peluang dan tujuh ancaman yang merupakan isu strategis. Pada lingkungan internal didapati empat faktor kekuatan dan lima kelemahan yang merupakan isu strategis. Hasil matriks EFE menunjukkan kemampuan perusahaan dalam mersepon faktor eksternal yang cukup baik dalam memanfaatkan peluang dan menghindari ancaman. Sedangkan pada hasil analisis matriks IFE menunjukkan bahwa posisi internal perusahaan saat ini lemah. Melalui pencocokan isu-isu strategis yang terdapat pada lingkungan internal dan eksternal perusahaan, dihasilkan tujuh rumusan alternatif strategi yang dapat dijalankan perusahaan. Menjalin kerjasama dengan agen forwarder dalam negeri merupakan prioritas alternatif strategi yang terpilih melalui alat analisis AHP.Kata kunci: AHP, SWOT, Tomat, OVOP