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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

Abstract

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
KEBERLANJUTAN RANTAI PASOK INDUSTRI KECIL DAN MENENGAH (IKM) ALAS KAKI DI KABUPATEN DAN KOTA BOGOR Wilda Sukmawati; Machfud; Ono Suparno; Aji Hermawan
Jurnal Teknologi Industri Pertanian Vol. 30 No. 1 (2020): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2020.30.1.43

Abstract

Measurement of supply chain sustainability in the footwear industry is limited to measurements on craftsmen as footwear makers in the District and City of Bogor. The purpose of this study was to obtain a footwear industry supply chain sustainability index in the District and City of Bogor as an industrial centre in the West Java region. The method approach taken was Multidimensional Scaling (MDS) using Rapfish software. This study analyzed three dimensions, namely economic, social and environment. The indicators used for the economic dimension were net profit, sales targets, production capacity, labour income, product quality, market access, investment for the environmental improvement, research and technology development. Indicators measured for the social dimension were employment opportunities for the local workers, human reource skills, easiness access to health, use of equipment, work safety, workplace quality, air quality of production rooms, workforce training, number of products returned, and certification in the social field. On the environmental dimension, the indicators measured were the reduction in the amount of energy used, the use of environmentally friendly materials, the level of waste management, measurement and reduction of emissions produced, certification in the environmental field, use of materials from local suppliers. The results of measurement of the footwear industry sustainability indexes were less sustainable for the economic and social dimensions, whereas for the environment dimension indexed was not sustainable. In leverage analysis, indicators that influenced to increase the index for the economic dimension were market access and labour income, the social dimension were the quality of the production room air and the use of safety equipment, and the environmental dimension were the level of waste management, measurement and emission reduction. Keywords: sustainability. footwear, MDS
POTENSI DAN MASA DEPAN SERAT ALAM INDONESIA SEBAGAI BAHAN BAKU ANEKA INDUSTRI Ono Suparno
Jurnal Teknologi Industri Pertanian Vol. 30 No. 2 (2020): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24961/j.tek.ind.pert.2020.30.2.221

Abstract

Indonesia is one of the producing countries of natural fibre commodities, both vegetable and animal fibres. Indonesia exports natural fibres and at the same time needs a large quantity of natural fibers which is satisfied by imports. The natural fibre user industry contributes as a source of the state revenue. This article was written descriptively through a literature review and an analysis of data on the potential and future of Indonesian natural fibres as raw materials for various industries. The results of this study indicated that natural fibre from Indonesia had the potential to be used as raw materials for various industries by increasing the quantity of supplies and their qualities; the uses of natural fibres are not only for conventional uses, but continues to grow with the development of science, technology and art to create innovations based on natural fibres and take awareness of the importance of environmentally friendly products; and natural fibres have good prospects or technoeconomically feasibile to be developed as raw materials for various industries. Keywords: business feasibility, export, fibre uses, industry, natural fibre, production, raw material
Optimization Of Rubber Seed (Hevea Brasiliensis) Drying In Rubber Seed Oil Extraction For Chamois Leather Tanning Ono Suparno; Ika Amalia Kartika; . Muslich; Gita N. Andayani; Kurnia Sofyan
Jurnal Teknologi Industri Pertanian Vol. 19 No. 2 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

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.
STUDIES ON THE MECHANICAL PRESSING CONDITIONS IN RUBBER SEED OIL (Hevea brasiliensis) PRODUCTION FOR LEATHER TANNING Ono Suparno, Kurnia Sofyan dan Muh. Idham Aliem
Jurnal Teknologi Industri Pertanian Vol. 20 No. 2 (2010): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

ABSTRACT  Pressing is one of the important steps in the oil production by using a mechanical method.  Optimization in the oil pressing need is conducted in order to obtain high yield and quality of the oil. A suitable temperature and pressure in the oil pressing will give an optimum condition for the operation causing oil flows easier.  The objectives of this research were to get conditions of temperature and pressure in rubber seed pressing in order to obtain high yield and physico-chemical properties of rubber seed oil for the chamois tanning.  The sun-dried seeds were dried in an oven at temperature of 70 oC for one hour, and then were pressed by using a hydraulic pressing at temperatures of 55 oC, 65 oC and 75 oC and pressures of 15 tonnes/196.15 cm2, 17.5 tonnes/196.15 cm2 and 20 tonnes/196.15 cm2.  Yield of the oil and oil content of its cake were measured.  Their physico-chemical properties of the oil including colour, iodine value, acid value, and free-fatty acid content were measured.  The results show that condition giving the best yield and physico-chemical properties of the rubber seed oil for leather tanning was pressing at temperature of 75 oC and pressure of 20 tonnes/196.15 cm2.     Keywords:  rubber seed oil, pressure, temperature, yield, leather tanning
NEW ENVIRONMENTALLY BENIGN LEATHER TECHNOLOGY: COMBINATION TANNING USING VEGETABLE TANNIN, NAPHTHOL AND OXAZOLIDINE Ono Suparno, Anthony D. Covington dan Christine S. Evans
Jurnal Teknologi Industri Pertanian Vol. 18 No. 2 (2008): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

ABSTRACTLeather tanning is a process of converting of skin or hide protein into leather with adequate strength properties, resistance to various biological and physical agents, and capable of being used for a wide range of purposes.  Leather tanning reactions between collagen-vegetable tannin-oxazolidine and collagen-dihydroxynaphthalenes (DHNs)-oxazolidine have been investigated using hide powder and sheepskin pickled pelt. This investigation showed that some DHNs have a tanning effect on collagen.  The measurement of combined and cross-linked vegetable tannin and DHNs on collagen showed that 20-50% vegetable tannin, 1,6- and 2,6-DHNs were fixed through covalent bonding.  Shrinkage temperature of the leather changed little after the non combined vegetable tannin and DHNs had been removed from the leather, indicating that the high stability of the combination tanned leather comes from the covalent bonding formed between vegetable tannage or DHNs and collagen through oxazolidine. Covalently bound tannin on collagen was more stable and could not be extracted by lyotropic agents. Keywords: tanning, leather, hydrothermal stability, vegetable tannage, dihydroxynaphthalenes, oxazolidine.
THE EFFECTS OF SODIUM PERCARBONATE CONCENTRATION AND AMOUNT OF WATER IN THE CHAMOIS TANNING ON THE CHAMOIS LEATHER QUALITY Ono Suparno dan Eko Wahyudi
Jurnal Teknologi Industri Pertanian Vol. 22 No. 1 (2012): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

ABSTRACTChamois leather is a popular product in trading, because it has specific uses. Nowadays, oxidation process of chamois leather production is time consuming, i.e. about two weeks. This causes production process of chamois leather needs  long time. In this study, the effects of sodium percarbonate concentration and amount of water in the chamois tanning on the chamois leather quality were investigated.  This study shows that sodium percarbonate amount significantly affected thickness and oil content of the leathers;  amount of water significantly affected oil content of the leather; meanwhile, the interaction between sodium percarbonate concentration and amount of water significantly affected ash and oil contents of the leathers. The optimum condition for the oxidation was sodium percarbonate concentration of 4% and amount of water of 50%. The physical properties of the leather were thickness of 0.87 mm, tensile strength of 35.95 N/mm2, elongation at break of 129%, tear strength of 82.01 N/mm, water absorption of 226% (2 hours), and 303% (24 hours). The chemical properties were pH of 7.45, oil content of 8.1%, and ash content of 1.3%. The organoleptic properties were good, i.e. softness of 6-7, colour of 7- 8, and odour of 7- 8.Keywords: chamois leather, oxidation, rubber seed oil, sodium percarbonate, water
RANCANG BANGUN SISTEM BISNIS BERBASIS INTERNET (E-BUSINESS) UNTUK AGROINDUSTRI KULIT SAMAK (LEATHER) Yandra Arkeman, Ono Suparno, dan Citra Wanurmarahayu TIP
Jurnal Teknologi Industri Pertanian Vol. 23 No. 2 (2013): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

Penelitian ini bertujuan untuk merancang bangun sistem bisnis berbasis web (e-business) untukkomoditas agroindustri kulit, mengembangkan pelayanan sistem transaksi online (e-commerce), pelayananpelanggan dan kerjasama dengan rekan bisnis yang dapat menunjang pemasaran komoditas kulit di Indonesia.Ruang lingkup dari penelitian ini adalah perancangan sistem bisnis berbasis internet (e-business) untukkomoditas kulit yang mencakup penginformasian produk, transaksi jual beli, serta pelayanan pelanggan dan kerjasama dengan rekan bisnis berupa pertukaran data dan informasi. Metodologi penelitian yang digunakan adalahtahapan pendekatan sistem serta siklus hidup pengembangan sistem yang terdiri dari lima tahap, yaitutahapinvestigasi sistem, tahap analisis sistem, tahap perancangan sistem, tahap penerapan sistem dan tahappemeliharaan sistem. Penelitian ini merupakan sebuah layanan website simulasi sebuah perusahaan contoh (PTCitra Leather Trading), yang diberi nama E-CLT. Sistem ini menyediakan fasilitas pelayanan jual beli produkkulit yang telah disamak dan produk-produk yang terbuat dari kulit. Data mengenai spesifikasi produk dan hargadidapatkan dari lima perusahaan. Untuk data mengenai kulit samak didapat dari Pabrik Kulit Ali Ahmad diCibuluh, sedangkan untuk data produk-produk kulit didapat dari Perusahaan Kulit Primatama Leather (Garut),dan tiga perusahaan yang memasarkan secara online. Produk Finished Leather yang dijual terdiri dari empatjenis kulit, yaitu: Nubuck Sapi, Corrected Sapi dan Lining Kambing dan Pickle. Sementara itu Finished Productyang dijual terdiri dari jaket kulit, rompi, tas dan sepatu kulit, serta aksesori dari kulit. Pembuatan website inimenggunakan program Macromedia Dreamweaver,Adobe Photoshop CS3, Photoshape dan database mySQL.Terdapat tujuh menu utama pada homepage website, yang dapat diakses oleh customer yakni Home, Product,Costumer, Contact, Supplier and Other Industries, Payment and Delivery, dan Customer Services. Sementara ituuntuk Administrator, menu yang tersedia yaitu peng-update-an produk, biaya pengiriman dan status pesanan,pengecekan transaksi, serta penghitungan laba/rugi per bulan per item produk dan juga informasi grafikpenjualan per tahun. Mekanisme pembayaran pada E-CLT menggunakan fasilitas transfer antar bank. Validasipembayaran dilakukan dengan mengirimkan bukti slip setoran pembayaran melalui e-mail.Kata kunci: e-business, kulit samak, sistem bisnis, disain, e-commerce
PENGHILANGAN HEMISELULOSA SERAT BAMBU SECARA ENZIMATIK UNTUK PEMBUATAN SERAT BAMBU Ono Suparno dan Roberto Danieli
Jurnal Teknologi Industri Pertanian Vol. 27 No. 1 (2017): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

  *Penulis untuk korespondensiHemicellulose and lignin removal process or degumming of bamboo fibre using cellulase and xylanase was conducted. The objectives of the study were to obtain suitable type of bamboo used in the enzymatic degumming process and to determine the optimum xylanase concentration for the hemicellulose hydrolysis of the selected bamboo. The types of bamboos used in this study were yellow bamboo,ropebamboo,and black bamboo. The study was conducted by enzymatic hydrolyses of the bamboo fibres, and measuring the yield, cellulose content, hemicellulose content, and reducing sugar content. Fibre hydrolysis used the cellulase concentration of 25 U/g and xylanase concentrationsof 50 to 500 U/g. The result showed that yellow bamboo contained cellulose and hemicellulose contents which most susceptible to hydrolysis resulting in reducing sugars, and decreasing cellulose and hemicellule contents of 6.40 % and 12.71%, respectively. The optimum xilanase concentration for the yellow bamboohydolysis was 400 U/g which could hydrolyze hemicellulose by 54.31% in 24 hours.Keywords: bamboo fibre, cellulase, xylanase, hydrolysis, enzymatic process
ASSESSMENT INDEKS LEAN DAN GREEN PADA SMEs COKELAT BEAN TO BAR DI INDONESIA Siti Aisyah, Machfud, Sukardi, Ono Suparno
Jurnal Teknologi Industri Pertanian Vol. 28 No. 3 (2018): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

The development of chocolate Small Medium Enterprises (SMEs) is very strategic for Indonesia, where trade transactions value of processed cocoa and chocolate contributes to foreign exchange> USD 1 Billion/year. The demands of industrial operational systems that are slender (lean) and environmentally friendly (green) will be very important issues to be resolved particularly by SMEs with all their limitations. The purpose of this study was to determine the level of practice of lean and green on chocolate bean to bar SMEs in Indonesia and determine the importance of experts on the implementation of lean and green on chocolate bean to bar SMEs in Indonesia. The results of the analysis of the lean practice level on chocolate bean to bar SMEs with a scale of 1 - 5, obtained a lean practice level obtained a scale of 3.85 and green practice of 3.39, while the scale of importance for lean is 4.41 and for green is 4.5. This indicates that the achievement index of lean and green practices are in the value of 3.62 which means that SMEs cocoa bean to bar Indonesia has not fully implemented the practices of lean and green.Keywords : practice lean, practice green, SMEs, chocolate industry, bean to bar, LG Index