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Dwi Setyaningsih
Departemen Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga, PO Box 220 Jawa Barat 16680
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PENGARUH AKTIVITAS -GLUKOSIDASE EKTERNAL DARI KAPANG TERHADAP KADAR VANILIN BUAH VANILI Dwi Setyaningsih, Kania Tresnawati, Maggy T. Soehartono dan A. Apriyantono
Jurnal Teknologi Industri Pertanian Vol. 16 No. 1 (2006): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACTVanilla is one of the most widely used and important flavoring materials wordwide. The Indonesian natural vanilla has known for having lower quality than Bourbon due to immature harvested bean and uncompleted curing process. The objective of this research was to increase the vanillin content of cured vanilla by improving the -glucosidase activity. This research studied the best mold (between Aspergillus niger and A. oryzae) and the optimum time for producing -glucosidase enzyme. The analysis was including the -glucosidase activity, vanillin and glucovanillin content, and reducing sugar content. The mold that produced the highest -glukosidase activity was A. niger with 72 incubation time was 193.7 unit/mg protein. The optimum pH and temperature of enzyme from A. niger was 4.5 and 60oC, respectively. The highest vanillin content produced from vanilla homogenat with enzyme extract A. niger at 18 hour incubation time was 0.514 mg/100 ml. The homogenate that is incubated with enzyme extract from A. niger has the highest glucose content at 48 hour incubation time (8.61 mg/ml). The glucovanillin content from three kind of homogenate was decreasing as long as incubation time from 0.44 mg/ml to 0.00 mg/ml (mold), from 0.26 mg/ml to 0.03 mg/ml (emulsin) and from 0.38 mg/ml to 0.12 mg/ml (endogen).Keywords : -glucosidase activity, vanillin, vanilla
APPLICATION OF MODIFIED ZEOLITES FOR BIOETHANOL DEHYDRATION Khaidir, Dwi Setyaningsih dan Hery Haerudin
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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ABSTRACTBioethanol dehydration was carried out using five modified natural zeolites (ZAM). This study aimed to get the best conditions of bioethanol dehydration and to determine the increasing of bioethanol grades for each modified zeolite. Bioethanol dehydration process was carried out using a batch adsorption. The content of ethanol in bioethanol increased after adsorption process for each zeolite.  The increased percentages of bioethanol grades in the immersion method using ZAM1 and ZAM4 with bioethanol of 90% (v/v) were 1.22% and 1.38%, while with bioethanol of 95% the percentage were 1.27% and 1.08%, respectively. Meanwhile the resulted grades of bioethanol using purely natural zeolites with bioethanol of 90% and 95% were 0.62% and 0.72% respectively. In general, the grade of ethanol increased after the adsorption process that uses all modified zeolites samples.Keywords: bioethanol, modified zeolites, bioethanol dehydration
PEMBUATAN BIODIESEL BIJI KARET DAN BIODIESEL SAWIT DENGAN INSTRUMEN ULTRASONIK SERTA KARAKTERISTIK CAMPURANNYA Sabinazan musadhaz, Dwi Setyaningsih dan Djeni Hendra TIP
Jurnal Teknologi Industri Pertanian Vol. 22 No. 3 (2012): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Biodiesel is one of known alternative fuels, obtained from vegetable oil, for example rubberseed oil and palm oil. Conventionally, biodiesel obtained by reacting oil with methanol and catalyst for one hour at temperature of 65 oC with mechanical stirring. Reaction time of this conventional method can be shortened by applying ultrasonic energy. The objectives of this research were to produce rubberseed biodiesel and palm biodiesel by applying ultrasonic energy, and to characterize palm biodiesel, rubberseed biodiesel, and blended of both. The result showed that ultrasonic transesterification of palm oil gave a greater yield than conventional methods, the yield ranged from 96.52% to 98.03% and the acid number ranged from 0.50 to 0.63 mg KOH/g sample for ultrasonic transesterification. Ultrasonic esterification succeeded in reducing acid value of rubber seed oil, which was smaller than acid value of 30 minutes by the conventional esterification. Ultrasonic transesterification only succeeded to produce biodiesel from rubberseed oil that has gone through the 30 minutes ultrasonic esterification (78.84% yield) and through an one hour conventional esterification (91.55% yield). Rubberseed biodiesel, oil palm biodiesel, and blended of both biodiesel met the SNI-04-7182-2006 on the characteristics of acid value, density, viscosity, and cloud point. The iodine number of rubberseed biodiesel was still above the standard, but adding oil palm biodiesel to rubberseed biodiesel can reduce the iodine number of blended biodiesel to met the standards.Keywords: biodiesel, rubberseed oil, palm oil, ultrasonic, blending characteristics
ANALISIS TEKNO-EKONOMI PENDIRIAN PABRIK BIODESEL DARI BIJI NYAMPLUNG (Calophyllum inophyllum L.) Yandra Arkeman, Dwi Setyaningsih dan Tika Ari Sanday TIP
Jurnal Teknologi Industri Pertanian Vol. 22 No. 3 (2012): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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World crises that occurred in the last decades indicated the scarcity of fuel. Fuel consumption is unbalanced with fuel production so it needs the development of alternative sources of energy. One of them is to use nyamplung seed. Nyamplung (Calophyllum inophyllum L.) is one of the biodiesel alternative raw material that has a large potential to be developed to overcome the problem of scarcity of fuel. The advantages of nyamplung as raw material for biodiesel are the dry seeds have high yield (approximately 70%) and its use does not compete with food purposes. The purpose of this study was to analyze techno-economic aspect of biodiesel industry establishment of nyamplung seed. Scope of research included techno-economic on the market and marketing aspects, technical and technological, management and organization, environmental, legal, valuation and commercialization, as well as financial aspects. This biodiesel industry is planned to be located in Banyuwangi, Indonesia with the selection criteria associated with using Analytical Hierarchy Process and the industrial capacity of 1000 liters per day with raw materials as much as 4500 kgs per day. After the assessment of all aspects, it can be concluded that the industry of biodiesel from nyamplung seed is feasible to be established.Keywords: techno-economic, nyamplung, biodiesel industry
MODIFIKASI FERMENTASI HIDROLISAT ASAM Eucheuma cottonii MENJADI BIOETANOL MENGGUNAKAN Saccharomyces cerevisiae DAN Pachysolen tannophilus Muhammad Syukur Sarfat, Mulyorini Rahayu nigsih, Ani Suryani, Dwi Setyaningsih TIN
Jurnal Teknologi Industri Pertanian Vol. 23 No. 3 (2013): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRAKTujuan dari penelitian ini adalah adalah modifikasi fermentasi bioetanol secara curah dari rumput laut (Eucheuma cottonii) sebagai substrat sehingga dihasilkan rendemen produk bioetanol yang tinggi. Jenis gula yang terdapat pada hidrolisat asam Eucheuma cottonii terdiri dari 4,95% galaktosa, 0,25% glukosa, 0,04% xilosa, dan 0,02% maltoheptaosa. Produksi etanol tertinggi dari Saccharomyces cerevisiae IPBCC AL IX teradaptasi adalah 2,38% (v/v) etanol pada fermentasi cair, dengan 79,09% efisiensi penggunaan substrat, dan 56,30% efisiensi fermentasi yang difermentasi selama 6 hari. Produksi etanol tertinggi dari Pachysolen tannophilus IPBCC AC IX teradaptasi adalah 0,11% (v/v) etanol pada fermentasi cair, dengan 15,39% efisiensi penggunaan substrat, dan 2,60% efisiensi fermentasi yang difermentasi selam 4 hari. Produksi etanol tertinggi dengan perlakuan culture refresh menggunakan Pachysolen tannophilus IPBCC AC IX teradaptasi setelah fermentasi berlangsung 24 jam oleh Saccharomyces cerevisiae IPBCC AL IX teradaptasi adalah 0,81% (v/v) etanol pada fermentasi cair, dengan 82,42% efisiensi penggunaan substrat, dan 19,79% efisiensi fermentasi yang difermentasi selama 6 hari. Produksi etanol tertinggi dengan perlakuan culture refresh menggunakan Saccharomyces cerevisiae IPBCCAL IX teradaptasi setelah fermentasi berlangsung 24 jam oleh Saccharomyces cerevisiae IPBCC AL IX teradaptasi adalah 1,76% (v/v) etanol pada fermentasi cair, dengan 53,06% efisiensi penggunaan substrat, dan 43,53% efisiensi fermentasi yang difermentasi selama 6 hari.Kata kunci: bioetanol, Eucheuma cottonii, Pachysolen tannophilus, Saccharomyces cerevisiae
INFLUENCE OF MATERIAL DENSITY AND STEPWISE INCREASE OF PRESSURE AT STEAM DISTILLATION TO THE YIELD AND QUALITY OF CAJUPUT OIL Dwi Setyaningsih, Laras Sukmawati, dan Semangat Ketaren TIP
Jurnal Teknologi Industri Pertanian Vol. 24 No. 2 (2014): Jurnal Teknologi Industry Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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ABSTRACT   Penyulingan uap pada minyak kayu putih biasa dilakukan dengan tekanan konstan. Penelitian ini membandingkan hasil dan mutu minyak kayu putih dari penyulingan dengan tekanan uap konstan dengan peningkatan tekanan bertahap.  Kepadatan bahan selama penyulingan juga harus diperhatikan karena dapat mempengaruhi hasil minyak. Tujuan penelitian ini adalah untuk mengetahui pengaruh kepadatan bahan pada penyulingan uap dengan kenaikan tekanan bertahap terhadap hasil dan mutu minyak.  Diharapkan diperoleh hasil yang tinggi dan memenuhi Standar Nasional Indonesia (SNI). Penyulingan dilakukan dengan 3 tingkat kepadatan bahan yaitu 0,20; 0,25, and 0,30 kg/L selama 3.5 jam dengan tekanan awal sebesar 0 bar (pressuregauge)  selama 1,5 jam, dilanjutkan dengan 0,5 bar selama 1 jam dan 1 bar pada satu jam terakhir. Rendemen yang diperoleh dari penyulingan tekanan tetap adalah   0,8% dan untuk penyulingan tekanan bertahap berkisar antara   0,79% sampai 0,98%. Kepadatan bahan tidak memberikan pengaruh nyata terhadap rendemen, indeks refraksi dan    specific gravity,  namun hanya mempengaruhi rotasi optik. Kenaikan tekanan uap bertahap mempengaruhi karakteristik minyak kayu putih. Kadar sineol  sebesar  60,48%  terdapat pada fraksi dengan tekanan  0 bar, 10,08%  pada fraksi dengan tekanan    0,5 bar dan    1,47%  pada fraksi dengan tekanan  1 bar. Minyak kayu putih dari  penyulingan dengan  tekanan  konstan  hanya mengandung sineol sebesar  35,70% Komponen utama minyak kayu puti adalah sineol, α-terpineol, trans-kariofilen, viridiflorol, limonen, α-humulen α-selinen, dan β-selinen. Kata kunci: penyulingan uap, minyak kayu putih, kepadatan bahan, kenaikan tekanan uap bertahap
HIDROLISIS Eucheuma cottonii DENGAN ENZIM K-KARAGENASE DALAM MENGHASILKAN GULA REDUKSI UNTUK PRODUKSI BIOETANOL Mustika Zelvi, Ani Suryani, dan Dwi Setyaningsih
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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Bioethanol is one of the renewable resources derived from sugar fermentation process of carbohydrate substance with microorganismaid. Hydrolysis is the stage to get the simple sugar and is done with using k-carragenasethat is obtained from the isolation result of marine microbe in E.cottonii’s habitat. The objectives of this research were to gain time hydrolysis to produce the enzyme activity and reducing sugar highs by k-karagenase and to determine the best of the substrate concentration and k-carragenasein producing a reduction sugar and the highest ethanol. The research steps was started from isolate rejuvenation of IH22 microbe, enzyme production of crudeextraction k-carragenase and 80% acetone precipitation, determination of the hydrolysis timeand activity of k-carragenase. The next step was the substrate hydrolysis with amounts of 6%, 9%, and 12% (b/v) solids, by enzyme from acetone concentrations of 0%, 2.5%, and 5% (v/v) and then they were fermented for six days with the S.cereviseaeadapted yeast extract. Thek-carragenasse highest enzyme activity was obtained in incubation for 30-60 minutes while the highest reduction sugar was obtained inhydrolysis time for 120 minutes. During the hydrolysis,12% substrate concentration generated the highest reduction sugar and whole sugar of 3.21% and 9.89%, respectively, while 9% substrate with 5% enzyme treatment contained1.49% reduction sugar and 2.75% whole sugar, which was the best substrate in producing ethanol during fermentation process of 1.23% (v/v) and 0.82% (b/v) with 55.78% substrate efficiency and 70.44% fermentation efficieny.Keywords : bioethanol, Eucheuma cottonii, k-carragenasse, S.cerevisiae
ENKAPSULASI CAMPURAN MINYAK ATSIRI SEBAGAI PRODUK SEDIAAN AROMATERAPI DENGAN TEKNIK KOASERVASI KOMPLEKS Annisa Putri; Meika Syahbana Rusli; Dwi Setyaningsih
Jurnal Teknologi Industri Pertanian Vol. 30 No. 3 (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.2020.30.3.299

Abstract

Essential oils are used as raw materials in the flavors and fragrances industry. Essential oils contain active compounds that are volatile at ambient temperature so that it is unstable to environmental changes. Complex coacervation is one of the techniques used in the encapsulation process to protect the active material. Essential oil blends were encapsulated by gelatin and maltodextrin as wall material and sodium tripolyphosphate as crosslinking agent. The objective of this study was to analyze the effect of the proportion between essential oils, wall material, and crosslinking agents on the yield, loading capacity, and encapsulation efficiency. The results showed that the optimum formulation for microcapsules was the essential oil and wall material ratio 1:2 and crosslinking agent concentration of 3%, with the yield of 45.18%, loading capacity of 5.37%, and encapsulation efficiency of 92.20%. The microcapsule size obtained was 0.1475 μm with polydispersity index of 0.410. Key words: complex coacervation, encapsulation, essential oil, gelatin, maltodextrin
PENGARUH PENAMBAHAN MONO-ASILGLISEROL (MAG) SEBAGAI EMULSIFIER PRODUK BAKERY Dwi Setyaningsih; Jihan Suraya; Syafira Salsabila
Jurnal Teknologi Industri Pertanian Vol. 31 No. 2 (2021): 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.2021.31.2.198

Abstract

Mono-acylglycerol (MAG) is the most used type of emulsifier in food industry. The need for domestic emulsifiers increases each year with an average value of 4%, so that the development of MAG as an emulsifier has good prospects. This study aimed to determine the best concentration of MAG as bakery products emulsifier such as sponge cake (2%, 2.5%, 3%), white bread (0.5%, 1%, 1.5%), and cookies (0.8%, 1.6%, 3.2%), and to know the characteristics differences of bakery products between synthesized MAG and commercial emulsifier. MAG was synthesized through the esterification process of coomercial glycerol from the byproducts of making biodiesel and palm fatty acid distillate from the byproducts of crude oil purification at a temperature of 150°C, 90 minutes time, and a molar ratio of PFAD:glycerol 1:6. The best MAG concentrations for sponge cake were 2.5% based on physical characteristics and 3% based on organoleptics. The best MAG concentration for white bread was 1% indicate by its swelling dimensions. The best MAG concentration for cookie was 1.6% indicated by its swelling power that affects the crispness. The addition of MAG as emulsifier produces good characteristics and equivalent to commercial MAG in several aspects of bakery product quality.Keywords: bakery, emulsifier, mono-acylglycerol, organoleptics, swelling powder
TINJAUAN METODE POTENSIAL SINTESIS BIONANOKOMPOSIT ANTISTATIS YANG DIPERKUAT DENGAN MONO-DIASILGLISEROL DAN NANOKRISTAL SELULOSA Muhammad Syukur Sarfat; Dwi Setyaningsih; Farah Fahma; Nastiti Siswi Indrasti; Sudirman Sudirman
Jurnal Teknologi Industri Pertanian Vol. 31 No. 3 (2021): 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.2021.31.3.316

Abstract

In the last 10 years, the research about the technology of bionanocomposite synthesis has increased rapidly,starting from the simple technology to advanced technology of synthesis. From the several technologies ofsynthesis of bionanocomposite that have been developed, each has its own advantages and disadvantages.Therefore, the selection of the right technology of synthesis of bionanocomposite is one of the indicators of successin its synthesis. This review identified the latest developments in technology of synthesis of bionanocomposite andfocuses on methods of synthesis of bionanocomposite was most widely used and a technology that has advantagesover other technologies. It is hoped that this review can provide information about methods of synthesis ofbionanocomposite in general and specifically can provide information about methods of synthesis ofbionanocomposite reinforced with mono-diacylglycerol (M-DAG) and cellulose nanocrystal (CNC). Based on theidentification from several result of research, potential method to synthesis of bionanocomposite are combinationof two methods, namely twin-screw extrusion method and injection molding method. Those technologies can be analternative potential methods of synthesis of antistatic bionanocomposite reinforced with M-DAG and CNC.Keywords: cellulose nanocrystal, injection molding, mono-diacylglycerol, technology of synthesis of antistaticbionanocomposite, twin-screw extrusion
Co-Authors . Sugiyono Ade Kurniawan Agustiyana, Rosela Ahmad Riyadi Andini, Rina Widia Anggi Firdaus Agumsah Ani Suryani Ani Suryani Annisa Putri Anton Apriyantono Arief Riyanto Arum Nur Fitrah Atika Hermanda Bagus Ardi Saputro Bertoka Fajar SP Negara Chilwan Pandji Darmono Taniwiryono Dayu Dian Perwatasari Desi Musdaniaty Dewi Sondari Dina Prasetyowati Djumali Mangunwidjaja ediyansyah Edy Mulyono Egi Agustian Eka Rihan K, Eka Erliza Hambali FARAH FAHMA Farida Anggraini Firdausi, Stabita Fitriana Roselly Fitriani Kasim Harahap , Nur Layla Syafrina Harto Nuroso Hasmani Hayuni, Okta Ros Hermanda, Atika Hery Haerudin Hery Haerudin Hery Haerudin I Komang Gede Wiryawan I Wayan Arnata Ika Mariska Intan Purnamasari Irma Rumondang Jaini Fakhrudin Jihan Suraya Jonaldy Tanjung, Boma Juliejantiningsih , Yovitha Kartika Kartika Kartika Okta Purnama Khaidir Khaidir Khaidir Khaidir, Khaidir Khanifah, Rizka Nur Khaswar Syamsu Komang G. Wiryawan Lawang, Andi Tenri Liesbetini Haditjaroko M Luqmanul Hakim Maggy T Soehartono Maulidayanti, Esti Mega Meika S Rusli Meika Syahbana Rusli Melawati . Mira Rivai Mira Rival Mira Sofyaningsih Mufidah, Ratna Muhammad Nuur Faiziin Muhammad Syukur Sarfat Mujizat Kawaroe Kawaroe Mulyono Mulyono Mulyorini Rahayuningsih Nastiti Siswi Indrasti Neli Muna Neli Muna Nelwan, Leopold Oscar Nevianti, Devi Rizka Ayu Ngasbun Egar Nur Hidayati Nur Richana Nurmalia Muliati Ovi Yulianti Nurmilah Perwira, Wanda Gema Pratama, Riski Danan Putri, Chika Juliana Rahmiyati Kasim Reni Rahmalia Rienoviar Rienoviar Rizal Syarief Robbani, Muhammad Haqqiyuddin Rumondang, Irma Sapta Raharja Silvester Tursiloadi Siska Desri Wirahmi, Busman, Edrizal, Siti Rahmi Nuabdi Sitti Wajizah Sitti Wajizah Sri Windarwati Sriyanto Sriyanto Sudirman Sudirman Sudirman Sudirman Sugiyono . Suryati, Adelina Syafira Salsabila Syahbana, Meika Tentri Yera Idqa Ridmaningrum Titi Candra Sunarti Tun Tedja Irawadi Tun Tedja Irawadi Vitta Rizky Permatasari Vusvitha, Vastha Wasmen Manalu Wiharja Wiharja Yuana Susmiati Yuliani, Manis Zulhamdan