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All Journal Reaktor Jurnal Kimia Riset Industria: Jurnal Teknologi dan Manajemen Agroindustri Indonesian Journal of Biotechnology and Biodiversity Jurnal Teknik Kimia Indonesia Makara Journal of Technology Prosiding Seminar Nasional Rekayasa dan Teknologi (TAU SNAR- TEK) Jurnal Polimesin
Praswasti Pembangun Dyah Kencana Wulan
Departemen Teknik Kimia, Fakultas Teknik, Universitas Indonesia
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Other

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BIOADSORPSI SPESI SULFUR DALAM ION TIOSULFAT OLEH THIOBACILLUS THIOPARUS DENGAN BANTUAN ZEOLIT ALAM LAMPUNG SEBAGAI MEDIUM ADSORPSI Hidayanto, Ariyo Prabowo; Dianursanti, Dianursanti; Karamah, Eva F; Wulan, Praswasti PDK
Indonesian Journal of Biotechnology and Biodiversity Vol 1, No 1 (2017): Indonesian Journal of Biotechnology and Biodiversity
Publisher : Indonesian Journal of Biotechnology and Biodiversity

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Abstract

AbstrakSelain dapat menurunkan keekonomisan gas bumi, gas buang yang mengandung senyawa sulfur juga memiliki potensi yang dapat menimbulkan pencemaran udara jika terlepas ke udara. Untuk mengurangi kadar senyawa ini, proses bioadsorpsi dapat digunakan dengan menggabungkan proses degradasi oleh aktivitas mikroba dalam hal ini melalui aktivitas bakteri Thiobacillus thioparus dengan proses adsorpsi melalui bantuan material berpori yaitu zeolit alam Lampung sebagai adsorben. Pada tahap pembuatan medium dan fase tumbuh kultur Thiobacillus thioparus, koloni sel dijaga pada fase log yang akan terbentuk mulai hari ke 4 dan berhenti pada hari ke 8 dengan pH optimum harus stabil pada rentang 6 – 8. Pada fase inilah kultur digunakan pada proses bioadsorpsi. Zeolit sebagai bahan pengisi kolom bioadsorpsi juga sebelumnya di preparasi dengan proses mekanik untuk menyeragamkan ukuran diameter partikel yaitu sebesar ± 1 – 2 mm. BET autosorb digunakan untuk mengetahui profil fisik dari zeolit yaitu luas permukaan, volume pori, dan diameter pori. Pada proses bioadsorpsi, persentase reduksi tertinggi spesi sulfur pada ion tiosulfat dicapai sebesar 41,31 % pada jam ke 8. Sedangkan, proses bioadsorpsi akan terus berlanjut sampai mencapai jam ke 24 hingga tak tersedianya lagi sulfur yang dapat didegradasi oleh Thiobacillus thioparus, maka sel memasuki fase kematian hingga mengakhiri proses yang terjadi.Kata kunci : Thiobacillus thioparus, zeolit alam lampung, bioadsorpsi
BIOADSORPSI SPESI SULFUR DALAM ION TIOSULFAT OLEH THIOBACILLUS THIOPARUS DENGAN BANTUAN ZEOLIT ALAM LAMPUNG SEBAGAI MEDIUM ADSORPSI Hidayanto, Ariyo Prabowo; Dianursanti, Dianursanti; Karamah, Eva F; Wulan, Praswasti PDK
Indonesian Journal of Biotechnology and Biodiversity Vol 1, No 1 (2017): Indonesian Journal of Biotechnology and Biodiversity
Publisher : Universitas Esa Unggul

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Abstract

AbstrakSelain dapat menurunkan keekonomisan gas bumi, gas buang yang mengandung senyawa sulfur juga memiliki potensi yang dapat menimbulkan pencemaran udara jika terlepas ke udara. Untuk mengurangi kadar senyawa ini, proses bioadsorpsi dapat digunakan dengan menggabungkan proses degradasi oleh aktivitas mikroba dalam hal ini melalui aktivitas bakteri Thiobacillus thioparus dengan proses adsorpsi melalui bantuan material berpori yaitu zeolit alam Lampung sebagai adsorben. Pada tahap pembuatan medium dan fase tumbuh kultur Thiobacillus thioparus, koloni sel dijaga pada fase log yang akan terbentuk mulai hari ke 4 dan berhenti pada hari ke 8 dengan pH optimum harus stabil pada rentang 6 – 8. Pada fase inilah kultur digunakan pada proses bioadsorpsi. Zeolit sebagai bahan pengisi kolom bioadsorpsi juga sebelumnya di preparasi dengan proses mekanik untuk menyeragamkan ukuran diameter partikel yaitu sebesar ± 1 – 2 mm. BET autosorb digunakan untuk mengetahui profil fisik dari zeolit yaitu luas permukaan, volume pori, dan diameter pori. Pada proses bioadsorpsi, persentase reduksi tertinggi spesi sulfur pada ion tiosulfat dicapai sebesar 41,31 % pada jam ke 8. Sedangkan, proses bioadsorpsi akan terus berlanjut sampai mencapai jam ke 24 hingga tak tersedianya lagi sulfur yang dapat didegradasi oleh Thiobacillus thioparus, maka sel memasuki fase kematian hingga mengakhiri proses yang terjadi.Kata kunci : Thiobacillus thioparus, zeolit alam lampung, bioadsorpsi
KINETIKA MIKRO DEKOMPOSISI METANA MENJADI KARBON NANOTUBE PADA PERMUKAAN KATALIS Ni-Cu-Al Praswasti Pembangun Dyah Kencana Wulan; Widodo Wahyu Purwanto; Yuswan Muharam
Reaktor Volume 13, Nomor 3, Juni 2011
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.558 KB) | DOI: 10.14710/reaktor.13.3.148-154

Abstract

MICRO KINETICS OF DECOMPOSITION OF METHANE TO CARBON NANOTUBES OVER NI-CU-AL CATALYST. The main focus of this research was to obtain micro kinetics decomposition of methane producing carbon nanotube on the surface of the Ni-Cu-Al catalyst. Experimental kinetics data collected at a temperature range of 650-750oC and pressure of one atmosphere. The preliminary test was conducted to obtain the kinetics are not influenced by external and internal diffusion limitations as well as inter-phase transfer. Kinetics data were tested by micro kinetic model derived from the catalyst surface reaction mechanism. The most appropriate kinetic model becomes the rate-limiting step of methane decomposition reaction. Results of preliminary experiment showed that the kinetics of the external diffusion effect is negligible at flow rates above 150 mL/min. Internal diffusion can be ignored with a catalyst under 0.25 mm in diameter with a weight of 0.04 grams of catalyst and contact time 2.5x10-4. Rate equation analysis shows that the rate-limiting step is the adsorption which indicates that intermediate consumption (CH4I + I Û CH3I + HI) is faster than the formation of intermediate (adsorption of methane, CH4 + I Û CH4I). The activation energy obtained for 34.628 kJ/mol and pre-exponential factor of 6.583x106.  Fokus utama penelitian ini adalah memperoleh kinetika mikro dekomposisi metana yang menghasilkan Carbon Nanotube pada permukaan  katalis Ni-Cu-Al. Data kinetika eksperimen diambil pada rentang temperatur 650-750oC dan tekanan 1 atmosfer. Percobaan pendahuluan dilakukan untuk memperoleh daerah kinetika yang tidak dipengaruhi oleh limitasi difusi eksternal dan internal serta perpindahan antar fasa.  Data kinetika  diuji dengan model kinetika mikro yang diturunkan dari mekanisme reaksi permukaan katalis. Model kinetika yang paling sesuai menjadi tahap pembatas laju reaksi dekomposisi metana. Hasil percobaan pendahuluan kinetika menunjukkan bahwa pengaruh difusi eksternal dapat diabaikan pada laju alir di atas 150 mL/menit. Difusi internal dapat diabaikan dengan menggunakan katalis berdiameter di bawah 0,25 mm dengan berat katalis 0,04 gram pada waktu kontak 2,5x10-4. Analisis persamaan laju menunjukkan bahwa tahap pembatas laju adalah tahap adsorpsi yang menunjukkan bahwa konsumsi intermediate (CH4I + I Û CH3I + HI) lebih cepat dari pembentukan intermediate (adsorpsi metana,CH4 + I Û CH4I). Energi aktivasi yang diperoleh sebesar 34,628 kJ/mol dan faktor pre-eksponensial 6,583x106.
Parameter kinetika reaksi dekomposisi katalitik metana menjadi karbon nanotube dengan katalis Ni-Cu-Al Praswasti PDK Wulan; Widodo W Purwanto; Yuswan Muharam; Anindya Adiwardhana
Jurnal Teknik Kimia Indonesia Vol 11, No 1 (2012)
Publisher : ASOSIASI PENDIDIKAN TINGGI TEKNIK KIMIA INDONESIA (APTEKIM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jtki.2012.11.1.5

Abstract

Kinetic Parameter of Methane catalytic Decomposition Reaction into Nanotube Carbon with Ni-Cu-Al Catalyst. Development of production technology of nanotubes carbon through catalytic conversion of hydrocarbons will be efficient and effective if based on knowledge of the nucleation and growth mechanism of carbon nanotubes. Most of the research that focused on identifying the main products of reaction and estimate the activation energy. Growth kinetics and mechanism data of carbon nanotubes not completely available, so that process kinetics models are always based on experimental kinetic data. The objective of this research is to obtain kinetic parameters of catalytic decomposition of methane using the catalyst Ni-Cu-Al with composition of 2:1:1 which was prepared by co-precipitation method using natrium carbonate solution precipitant. Experimental kinetic data were taken in the temperature range of 650-750 °C and pressure of 1 atmosphere. Kinetic data were tested by micro-kinetic model derived from the catalytic surface reaction mechanism. The most appropriate kinetic model with experimental result is the adsorption stage which shows that consumption of intermediate (reaction surface) faster than the formation of intermediate (adsorption of methane). Kinetic parameters obtained are activation energy of 40,6 kJ/mole and pre-exponential factor of 8,625 x 106. Keywords: methane decomposition, hydrogen, carbon nanotubes, co-precipitation, kinetics of reactionAbstrak Pengembangan teknologi produksi karbon nanotube melalui konversi katalitik hidrokarbon akan efisien dan efektif jika didasarkan pada pengetahuan mekanisme nukleasi dan pertumbuhan karbon nanotube. Sebagian besar studi melakukan riset yang difokuskan pada identifikasi produk utama reaksi dan estimasi energi aktivasi. Data kinetika dan mekanisme pertumbuhan karbon nanotube tidak tersedia dengan lengkap sehingga model kinetika proses selalu didasarkan pada data kinetika eksperimen. Pada penelitian ini, dilakukan studi untuk memperoleh parameter kinetika reaksi dekomposisi katalitik metana menggunakan katalis Ni-Cu-Al dengan target komposisi 2:1:1 yang dipreparasi dengan metode kopresipitasi menggunakan presipitan larutan natrium karbonat. Data kinetika eksperimen diambil pada rentang temperatur 650-750 oC dan tekanan 1 atmosfer. Data kinetika diuji dengan model kinetika mikro yang diturunkan dari mekanisme reaksi permukaan katalis. Model kinetika yang paling sesuai dengan hasil percobaan adalah tahap adsorpsi yang menunjukkan bahwa konsumsi intermediate (reaksi permukaan) lebih cepat dari pembentukan intermediate (adsorpsi metana). Parameter kinetika yang diperoleh berupa Energi aktivasi sebesar 40,6 kJ/mol dan faktor pre-eksponensial 8,625 x 106.Kata kunci: dekomposisi metana, hidrogen, karbon nanotube, kopresipitasi, kinetika reaksi
Peningkatan efisiensi penggunaan koagulan pada unit pengolahan air limbah batu bara Misri Gozan; Praswasti PDK Wulan; Hardi Putra
Jurnal Teknik Kimia Indonesia Vol 8, No 2 (2009)
Publisher : ASOSIASI PENDIDIKAN TINGGI TEKNIK KIMIA INDONESIA (APTEKIM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jtki.2009.8.2.2

Abstract

Coagulant efficiency improvement for coal waste water treatment.Wastewater from coal processing plant (CPP) might dissolve hazardous particles to the environment. Coagulant was used at wastewater treatment in Kalimantan coal industry in an open pond so that coagulation and precipitation were not optimal. This research was aimed to improve the coagulant performance. Wastewater samples taken from the field were tested by using Jar Tests to compare the performance of coagulants. Coagulant used were alum, Poly Aluminium Chloride (PAC) and Nalcolyte 8100 with the needs of 18.65 kg alum (50 ppm), 57.6 liters of PAC (150 ppm) and Nalcolyte 1.865 liter (5 ppm) at wastewater flow rate of 4.31 L/s. Jar Test results showed that the resulting sediment of alum and PAC were not stable and required substantial time to settle. Particle size sediment produced by using 8100 Nalcolyte was large enough so that the deposition process was faster and not easily susceptible to interference. Pool dredging or cleaning time for alum (50 ppm), PAC (150 ppm) and Nalcolyte 8100 (5 ppm) were 4, 4 and 6 days, respectively.Key words: precipitation, coagulant, wastewater treatment ponds, coal. AbstrakAir limbah dari proses pengolahan batubara berpotensi merusak lingkungan karena melarutkan partikel yang mengandung B3. Penggunaan koagulan dalam salah satu kolam pengolahan air limbah industri batubara di Kalimantan dibuat pada tanah galian terbuka sehingga koagulasi dan presipitasi tidak optimal. Penelitian ini bertujuan memperbaiki unjuk kerja penggunaan koagulan pada pengolahan air limbah dan modifikasi kolam pengolahan. Sampel air limbah diambil dari lapangan dan dilakukan Jar Tes untuk membandingkan kinerja koagulan. Koagulan yang digunakan adalah tawas, Poly Aluminium Chloride (PAC) dan Nalcolyte 8100 sebesar 18,65 kg tawas (50 ppm); 57,6 Liter PAC (150 ppm); dan 1,865 Liter Nalcolyte (5 ppm) pada laju alir air limbah 4,31 L/dtk. Hasil Jar Tes menunjukkan endapan yang dihasilkan tawas dan PAC bersifat tidak stabil dan membutuhkan waktu yang cukup lama untuk mengendap. Ukuran partikel endapan dengan Nalcolyte 8100 cukup besar sehingga proses pengendapan menjadi lebih cepat dan tidak mudah mengalami gangguan. Waktu pengerukan atau pembersihan kolam untuk koagulan tawas (50 ppm), PAC (150 ppm) dan Nalcolyte 8100 (5 ppm)  masing-masing adalah 4, 4 dan 6 hari sekali, secara berurutan.Kata kunci: pengendapan, koagulan, kolam pengolahan air limbah, batubara.
Modelling and Simulation of Packed Bed Catalytic Converter for Oxidation of Soot in Diesel Powered Vehicles Flue Gas Nasikin, Mohammad; Wulan, Praswasti P.D.K.; Andrianty, Vita
Makara Journal of Technology Vol. 8, No. 3
Publisher : UI Scholars Hub

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Abstract

Modelling and Simulation of Packed Bed Catalytic Converter for Oxidation of Soot in Diesel Powered Vehicles Flue Gas. Diesel vehicle is used in Indonesia in very big number. This vehicle exhausts pollutants especially diesel soot that can be reduces by using a catalytic converter to convert the soot to CO2. To obtain the optimal dimension of catalytic converter it is needed a model that can represent the profile of soot weight, temperature and pressure along the catalytic converter. In this study, a model is developed for packed bed catalytic converter in an adiabatic condition based on a kinetic study that has been reported previously. Calculation of developed equations in this model uses Polymath 5.X solver with Range Kutta Method. The simulation result shows that temperature profile along catalytic converter increases with the decrease of soot weight, while pressure profile decreases. The increase of soot weight in entering gas increases the needed converter length. On the other hand, the increase of catalyst diameter does not affect to soot weight along converter and temperature profile, but results a less pressure drop. For 2.500 c diesel engine, packed bed catalytic converter with ellipse’s cross sectional of 14,5X7,5 cm diagonal and 0,8 cm catalyst particle diameter, needs 4,1 cm length.
Kinetic Model For Triglyceride Hydrolysis Using Lipase:Review Hermansyah, Heri; Wijanarko, A.; Dianursanti, Dianursanti; Gozan, Misri; Wulan, Praswasti P. D.K; Arbianti, Rita; Soemantojo, Roekmijati W.; Utami, Tania Surya; Yuliusman, Yuliusman; Kubo, Momoji; Kitakawa, Naomi Shibasaki; Yonemoto, Toshiy
Makara Journal of Technology Vol. 11, No. 1
Publisher : UI Scholars Hub

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Abstract

Triglyceride hydrolysis using lipase has been proposed as a novel method to produce raw materials in food and cosmetic industries such as diacylglycerol, monoacylglycerol, glycerol and fatty acid. In order to design a reactor for utilizing this reaction on industrial scale, constructing a kinetic model is important. Since the substrates are oil and water, the hydrolysis takes place at oil-water interface. Furthermore, the triglyceride has three ester bonds, so that the hydrolysis stepwise proceeds. Thus, the reaction mechanism is very complicated. The difference between the interfacial and bulk concentrations of the enzyme, substrates and products, and the interfacial enzymatic reaction mechanism should be considered in the model.
Biomass Production Chlorella Vulgaris Buitenzorg Using Series of Bubble Column Photo Bioreactor with a Periodic Illumination Wijanarko, Anondho; Dianursanti, Dianursanti; Muryanto, Muryanto; Simanjuntak, Josia; Kencana Wulan, Praswasti Pembangun Dyah; Hermansyah, Heri; Gozan, Misri; Soemantojo, Roekmijati Widaningroem
Makara Journal of Technology Vol. 12, No. 1
Publisher : UI Scholars Hub

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Abstract

Chlorella vulgaris Buitenzorg cultivation using three bubble column photo bioreactors arranged in series with a volume of 200 mL for 130 hours shows an increase of biomass production of Chlorella vulgaris Buitenzorg up to 1.20 times and a decrease of the ability of CO2 fixation compared to single reactor at a periodic sun illumination cycle. The operation conditions on cultivation are as following: T, 29.0oC; P,1 atm.; UG, 2.40 m/h; CO2, 10%; Benneck medium; and illumination source by Phillip Halogen Lamp 20W /12V/ 50Hz. Other research parameters such as microbial carbon dioxide transferred rate (qco2), CO2 transferred rate (CTR), energy consumption for cellular formation (Ex), and cultural bicarbonate species concentration [HCO3] also give better results on series of reactor.
Penerapan Sistem Analitik Untuk Data Bawah Permukaan Sebagai Penentu Kualitas Reservoir Irvina Kamalitha Zunaidi; Praswasti PDK Wulan; Fajril Ambia
Prosiding TAU SNARS-TEK Seminar Nasional Rekayasa dan Teknologi Vol. 1 No. 1 (2019): Prosiding TAU SNAR-TEK Seminar Nasional Rekayasa dan Teknologi 2019
Publisher : Fakultas Teknik dan Teknologi - TANRI ABENG UNIVERSITY

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Abstract

Oil and gas reserves in Indonesia have an important role in the lives of their people. Therefore, data on oil and gas reserves in Indonesia are very necessary. In addition, the quality of the reserves itself determines the development of the oil and gas industry going forward. Since the government has aggressively encourage the use of natural gas and at present the government does not yet have data on Indonesia's gas reserves efficiently, this study presents a concept so that the government can easily see the quality of gas reserves. In this study, data management was carried out by grouping raw data according to each category. The data calculated using the Bayesian statistical method. This statistical assessment is a prediction model or percentage of data quality trust and definition of limits in grouping data quality. The percentage number of the prediction model appears based on suggestions according to the user's perspective. Data quality prediction models determine the quality of the reservoir. The role of reservoir quality is very large in determining future business. The results of research conducted by researchers labeling the classification of well status of On Production produces a high average accuracy with 81% precision, 98% recall, and 89% f-measured.
Technoeconomic Analysis of Integrated Bioethanol from Elephant Grass (Pennisetum purpureum) with Utilization of Its Residue and Lignin Safaat, Muhammad; Wulan, Praswasti Pembangun Dyah Kencana
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 11, No 1 (2022)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.industria.2022.011.01.7

Abstract

Abstract Bioethanol has been developed as an alternative biofuel. Elephant grass is one of the lignocelluloses that can be used as a source of bioethanol. The bioethanol fermentation process should be improved along with its economic competitiveness to promote its wider application. This study aims to investigate and to evaluate the best scheme of biethanol (standalone) and the combination of bioethanol and its by-products through technoeconomic analysis. The method used is collecting data from several previous studies and simulating it with SuperPro Designer. Data from flowsheeting simulation is used as economic simulation data using Microsoft Excel. The results of this study indicate that the processing of biogas and lignin waste as fuel and lignosulfonates can increase the economic value of the bioethanol production process. The best economic value is the bioethanol production process using biogas and lignin as fuel for a Biomass Power Plant which is called Pembangkit Listrik Tenaga Biomassa (PLTBm) with a Net Present Value (NPV) of IDR 364,358,976,036, Internal Rate of Return (IRR) 11.32%, Pay Back Period (PBP) 7.2 years, and Profitability Index (PI) 1.08Keywords: bioethanol, biogas, elephant grass, lignosulfonate, SuperPro Designer AbstrakBioetanol telah dikembangkan sebagai bahan bakar nabati alternatif. Rumput gajah merupakan salah satu lignoselulosa yang dapat digunakan sebagai sumber bioetanol. Proses fermentasi bioetanol harus ditingkatkan seiring daya saing ekonomi untuk mempromosikan penerapannya yang lebih luas. Tujuan studi ini adalah untuk menginvestigasi dan mengevaluasi skema terbaik bietanol (standalone) serta kombinasi bioetanol dan produk sampingnya melalui analisis teknoekonomi. Metode yang digunakan ialah melakukan pengumpulan data dari beberapa penelitian sebelumnya dan disimulasikan dengan SuperPro Designer. Data dari simulasi flowsheeting digunakan sebagai data simulasi ekonomi menggunakan Microsoft Excel. Hasil studi ini menunjukan bahwa pengolahan biogas dan limbah lignin sebagai bahan bakar dan lignosulfonat dapat meningkatkan nilai ekonomi dari proses produksi bioetanol. Nilai ekonomi yang paling baik adalah proses produksi bioetanol dengan pemanfaatan biogas dan lignin sebagai bahan bakar Pembangkit Listrik Tenaga Biomassa (PLTBm) dengan nilai Net Present Value (NPV) Rp 364.358.976.036-; Internal Rate of Return (IRR) 11,32%, Pay Back Periode (PBP) 7,2 tahun, serta Profitability Index (PI) 1,08.Kata kunci: bioetanol, biogas, lignosulfonate, rumput gajah, SuperPro Designer 
Co-Authors Adin, Mehmet Şükrü Anindya Adiwardhana Anondho Wijanarko Desi Heltina Dianursanti Eva Fathul Karamah Fajril Ambia Hanung Adi Nugroho Hardi Putra Heri Hermansyah Hidayanto, Ariyo Prabowo Irvina Kamalitha Zunaidi Ismail Marzuki Josia Simanjuntak Josia Simanjuntak Kamarza Mulia, Kamarza Kitakawa, Naomi Shibasaki Maemonah, Maemonah Mahmud Sudibandriyo Misri Gozan Mohammad Nasikin Momoji Kubo Momoji Kubo, Momoji Mubarokah Nuriaini Dewi Mulyadi, Eka Octaviyatna Muryanto Muryanto Muryanto Muryanto, Muryanto Naomi Shibasaki-Kitakawa Naomi Shibasaki-Kitakawa, Naomi Prolessara Prasodjo, Prolessara Rita Arbianti Roekmijati Soemantojo Roekmijati Soemantojo, Roekmijati Roekmijati W. Soemantojo Roekmijati W. Soemantojo, Roekmijati W. Safaat, Muhammad Slamet . Soemantojo, Roekmijati Widaningroem Tania Surya Utami Tiara Aninditha Toshiy Yonemoto Toshiy Yonemoto, Toshiy Valmelina, Ersyi Arini Vita Andrianty Vita Andrianty, Vita Wahyu Widodo Widodo W Purwanto Widodo Wahyu Purwanto Widodo Wahyu Purwanto Wijanarko, A. Yudan Whulanza Yuliusman Yuliusman Yuswan Muharam