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All Journal Jurnal Rekayasa Proses Agrointek Jurnal Belantara Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Rekayasa Proses Jurnal Kreativitas PKM Gorontalo Journal of Forestry Research Jurnal Ilmu dan Teknologi Kayu Tropis PERENNIAL Journal of Sylva Indonesiana ULIN: Jurnal Hutan Tropis Jurnal Hutan Pulau-Pulau Kecil : Jurnal Ilmu-Ilmu Kehutanan dan Pertanian Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Sylva Lestari JURNAL HUTAN TROPIS JOURNAL OF PEOPLE, FOREST AND ENVIRONMENT

Wahyu Hidayat

Jurusan Kehutanan, Fakultas Pertanian, Universitas Lampung

Author-ID : 2735496

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences

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PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT Rani, Irma Tya; Hidayat, Wahyu; Febryanto, Indra Gumay; Iryani, Dewi Agustina; Haryanto, Agus; Hasanudin, Udin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 2 (2020): Juni 2020
Publisher : The University of Lampung

Corrigendum to: PENGARUH TOREFAKSI TERHADAP SIFAT KIMIA PELET TANDAN KOSONG KELAPA SAWIT

PENGARUH VARIASI KADAR PEREKAT TAPIOKA TERHADAP KARAKTERISTIK BRIKET ARANG LIMBAH KAYU SENGON (Falcataria mollucana): The Influence of Adhesive Content Variation on the Characteristics of Sengon (Falcatataria moluccana) Wood Charcoal Briquettes Siti Mutiara Ridjayanti; Wahyu Hidayat; Rahmi Adi Bazenet; Irwan Sukri Banuwa; Melya Riniarti
PERENNIAL Vol. 17 No. 1 (2021): Vol. 17 No. 1, April 2021
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v17i1.13504

Biomass waste that has not been utilized properly is wood waste from Sengon (Falcataria moluccana). There is a high potential for these wastes to be used as solid fuel. The quality can be further improved by converting them into charcoal briquettes. This study aimed to determine the effects of adhesive content on the bioenergetic properties of charcoal briquette from sengon wood wastes. Sengon wood waste charcoal was produced with a pyrolysis method at a temperature of > 500 ℃. The charcoal briquettes were produced by mixing charcoal powders with tapioca starch with 5%, 10%, and 15%. The mixed charcoal powders and adhesives were then put into a metal cast and pressed using a Universal Testing Machine (UTM) Testometric M500-50AT under compression of 2,59-5,17 N/mm2 and a target density of 0,5 g/cm3. Biomass briquettes from sengon wood particles were also produced for comparison. The results showed oven-dry density of 0,23-0,25 g/cm3 and 0,18-0,20 g/cm3, for charcoal briquettes and biomass briquettes, respectively. Higher adhesive content increased the density of briquettes. Charcoal briquettes were more hydrophobic than biomass briquettes (control), showing a lower moisture content than control samples. The results of proximate analysis of charcoal briquettes showed volatile matter of 24,96–31,80%; ash content of 3,16–3,24%; and fixed carbon of 58,68–66.40%. Higher adhesive content increased the volatile matter, moisture content, and ash content of the charcoal briquettes and decreased the fixed carbon. The charcoal briquettes have a calorific value of 25,68-27,35 MJ/kg (6.137,67- 6.536,80 cal/g), which is remarkably higher than the control. Higher adhesive content tended to decrease the calorific value of the charcoal briquettes. Lower adhesive content will produce briquettes with good bioenergy characteristics. Sengon wood waste charcoal briquettes with 5% adhesive content have great potential to be developed as an alternative energy source.

Interaksi Perlakuan Dosis Dan Suhu Pirolisis Pembuatan Biochar Kayu Meranti (Shorea spp.) Mempengaruhi Kecepatan Tumbuh Sengon (Paraserianthes moluccana) Bangun Adi Wijaya; Melya Riniarti; Hendra Prasetia; Wahyu Hidayat; Ainin Niswati; Udin Hasanudin; Irwan Sukri Banuwa
ULIN: Jurnal Hutan Tropis Vol 5, No 2 (2021)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v5i2.5782

The growth rate of Paraserianthes moluccana is effected by the planting medium quality. Biochar is a soil-improving agent that could improve soil quality. This study aimed to determine the effect of biochar made from meranti wood (Shorea spp.) by pyrolysis temperature at 400°C and 600°C and dose at 0 ton/ha, 25 ton/ha and 50 ton/ha factors through the growth rate of P. moluccana. The P. moluccana was planted within 2x2 m in the field. The size of planting holes was 100 x 60 cm, the biochar was placed at a depth of 100 cm to 20 cm, then it was covered with soil so that the root did not interact directly to the biochar. This research used 6 months old P. moluccana seedling, and was planted in field demplot for 8 months. The research used the Split Plot experimental design with 5 treatments and 7 repetitions. Data analysis used Analysis of Variance (ANOVA) and Least Significance Different (LSD). The effect of biochar could be seen since the 4th month of plantation. The results showed that biochar with a dose of 25 ton/ha and pyrolysis temperature of 600°C had a very significant effect on the increment of height and significant on diameter steam increment of P. moluccana; increased the rate of stem height 22.6% and stem diameter 23.6% faster than the control. Further research related to the dynamics of P. moluccana growth with a longer time is needed because the physical properties of biochar change over time.

Peningkatan Kualitas Pelet Tandan Kosong Kelapa Sawit melalui Torefaksi Menggunakan Reaktor Counter-Flow Multi Baffle (COMB) Wahyu Hidayat; Irma Thya Rani; Tri Yulianto; Indra Gumay Febryano; Dewi Agustina Iryani; Udin Hasanudin; Sihyun Lee; Sangdo Kim; Jiho Yoo; Agus Haryanto
Jurnal Rekayasa Proses Vol 14, No 2 (2020)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.56817

Oil palm (Elaeis guineensis) empty fruit bunches (EFB) have not been utilized optimally. Currently, it is considered as a resource with low economic value. This biomass can be converted into bioenergy through a torrefaction process. Torrefaction is a mild pyrolysis at temperatures ranging between 200 and 300 °C, and it is generally performed under an inert atmosphere. The objective of this study was to evaluate the effects of torrefaction using Counter-Flow Multi Baffle (COMB) on the properties of oil palm EFB pellets. Torrefaction was conducted at 280 °C temperature with a residence time of 4 minutes. The results showed a decrease in the equilibrium moisture content and an increase in hydrophobicity after torrefaction using the COMB reactor. The change in the hygroscopic property could make the oil palm EFB pellet more stable against chemical oxidation and microbial degradation, hence self-heating and auto-ignition during storage could be prevented. The heating value of biomass increased after torrefaction. Torrefaction with the COMB reactor resulted in a heating value of 17.90 MJ/kg, which is comparable with the results of oxidative torrefaction (with longer residence time) of 18.28 MJ/kg. The results suggested that torrefaction using the COMB reactor could provide a great improvement in the quality of the bioenergetic properties of oil palm EFB pellets. However, the high ash content of the EFB pellets implied that the EFB pellets suitable for a small-scale application, but not yet for cofiring in power plants or as a feedstock for gasification.Keywords: Counter-Flow Multi Baffle; oil palm empty fruit bunches; renewable; torrefactionA B S T R A KTandan kosong kelapa sawit (Elaeis guineensis) belum dimanfaatkan secara optimal. Saat ini bahan tersebut masih dianggap sebagai sumber daya bernilai ekonomi rendah. Tandan kosong kelapa sawit (TKKS) dapat dikonversi menjadi bioenergi melalui proses torefaksi. Torefaksi merupakan proses pirolisis ringan pada suhu berkisar antara 200 dan 300 °C dan umumnya dilakukan di bawah kondisi inert. Penelitian ini bertujuan untuk mengetahui pengaruh torefaksi dengan reaktor Counter-Flow Multi Baffle (COMB) terhadap sifat-sifat pelet TKKS. Torefaksi dilakukan pada suhu 280 °C dengan waktu tinggal 4 menit. Hasil penelitian menunjukkan bahwa torefaksi menyebabkan penurunan kadar air kesetimbangan dan menjadi hidrofobik setelah torefaksi dengan reaktor COMB. Perbaikan sifat higroskopis dapat membuat pelet TKKS lebih stabil terhadap oksidasi kimia dan degradasi mikroba, sehingga pemanasan sendiri dan pembakaran spontan selama penyimpanan dapat dicegah. Nilai kalor biomassa meningkat setelah torefaksi. Torefaksi dengan reaktor COMB menghasilkan nilai kalor 17,90 MJ/kg, yang sebanding dengan hasil torefaksi oksidatif dengan waktu tinggal lebih lama, sebesar 18,28 MJ/kg. Hasil penelitian menunjukkan bahwa torefaksi dengan reaktor COMB dapat meningkatkan kualitas energi pelet TKKS. Tetapi pelet TKKS masih memiliki kadar abu yang tinggi sehingga biomassa hasil torefaksi belum sesuai untuk cofiring di pembangkit listrik atau sebagai bahan baku untuk gasifikasi.Kata kunci: Counter-Flow Multi Baffle; tandan kosong kelapa sawit; terbarukan; torefaksi

ANALISIS KERUSAKAN POHON DI HUTAN KOTA STADION KOTA METRO PROVINSI LAMPUNG Rahmat Safe’i; Bondan Abimanyu; Rahmat Safe'i; Wahyu Hidayat
JURNAL HUTAN PULAU-PULAU KECIL Vol 3 No 1 (2019): JHPPK
Publisher : Program Studi Manajemen Hutan, Pascasarjana Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (597.482 KB)

Urban forest is one component of green open space. The assessment of the condition of tree damage in the area of â€‹â€‹green open space is very important. Damage to trees can eliminate the function of the tree itself, it can even cause economic losses. Therefore, tree damage can be an indicator where trees are said to be healthy or sick. This study aims to determine the status of the condition of tree damage in the Stadion Urban Forest, Metro City, Lampung Province. The study was conducted using the Forest Health Monitoring (FHM) method. The results showed that there were eight locations of tree damage with the most found locations of damage, namely at the branch location (code 7) as many as 115 locations (37.34%); 12 types of tree damage with the most types of damage found, namely the type of broken or dead branches (code 22) as many as 110 (35.71%); with an average severity of tree damage â‰¥20%. Thus the status of the condition of tree damage in the Stadion Urban Forest, Metro City, Lampung Province is in the healthy category of 300 trees (77%), is being 69 trees (18%), and sick 19 trees (5%).

Pemanfaatan Limbah Biomassa Jagung Untuk Produksi Biochar di Desa Bangunsari, Pesawaran Wahyu Hidayat; Agus Haryanto; Gusri Akhyar Ibrahim; Udin Hasanudin; Seldi Prayoga; Bagus Saputra; Alim Fadila Rahman; Karina Gracia Agatha Tambunan
Jurnal Pengabdian Kepada Masyarakat (JPKM) TABIKPUN Vol. 3 No. 1 (2022)
Publisher : Faculty of Mathematics and Natural Sciences - Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpkmt.v3i1.77

Jagung merupakan komoditi unggulan di Desa Bangunsari, Pesawaran, namun hasil panen menyisakan limbah biomassa tongkol jagung. Selama ini limbah tongkol jagung hanya dibuang dan dibakar, sehingga menimbulkan masalah polusi, efek rumah kaca dan pemanasan global. Pemanfaatan limbah tongkol jagung sebagai bahan baku biochar dapat menjadi solusi yang menjanjikan. Kegiatan pengabdian kepada masyarakat (PKM) ini bertujuan untuk memperkenalkan manfaat penting biochar sebagai pembenah tanah kepada petani di Desa Bangunsari, membangun tungku produksi biochar, dan mempraktikkan cara membuat biochar dari tongkol jagung. Metode pengabdian menggunakan PLA (Participatory Learning and Action) dengan melibatkan beberapa petani yang dilatih dalam pembuatan biochar. Dari kegiatan PKM ini telah dibangun satu tungku produksi biochar dari batu bata dan tanah liat yang mampu memproses bahan baku berupa limbah tongkol jagung dengan kapasitas proses 35 meter kubik. Petani yang terlibat dalam kegiatan PKM ini mengerti proses pembuatan biochar menggunakan tungku tanah liat

Pengaruh Kadar Perekat Terhadap Karakteristik Briket Arang Limbah Kayu Karet (Hevea brasiliensis Muell. Arg) Rahmi Adi Bazenet; Wahyu Hidayat; Siti Mutiara Ridjayanti; Melya Riniarti; Irwan Sukri Banuwa; Agus Haryanto; Udin Hasanudin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.283-295

The study aimed to determine the effects of adhesive content on rubber wood charcoal briquette characteristics. Wood charcoal was produced using a double-drum retort kiln at > 500°C. Wood charcoals were crushed into powder and then mixed with tapioca adhesive of 5%, 10%, and 15%. The charcoal-adhesive mix was then pressed using a hydraulic press machine. For comparison, rubber wood biomass briquettes were also produced using wood particle-adhesive mix with similar adhesive content. Biomass and charcoal briquettes characteristics as physical properties (density and water absorption), chemical properties (ultimate analysis, and FTIR analysis) and energy properties (calorific value) were evaluated. The results showed that density ranged between 0.52-0.56 g/cm3, water absorption of 6.54-7.47%, C content of 82.67-84.41%, H content of 3.28-3.60%, N content of 0.67%-0.74%, and calorific value of 30.76-32.86 MJ/kg. The results of FTIR analysis showed changes in the spectrum of the wave band on the functional groups OH, CH, C≡H, C=C, and C=O, indicating the decomposition of the chemical components of rubber wood due to pyrolysis. The results prove that increasing the adhesive content can reduce the quality of briquettes. Based on physical, chemical, and energy properties, charcoal briquettes with 5% adhesive showed better characteristics than briquettes with 10% and 15% adhesive content, showing water absorption of 6.54%, C content of 84.41%, H content of 3.28%, and heating value of 32.86 MJ/kg. Keywords: adhesive content, charcoal briquette, pyrolysis, rubber wood waste, tapioca starch

Pengaruh Torefaksi terhadap Sifat Kimia Pelet Tandan Kosong Kelapa Sawit Irma Thya Rani; Wahyu Hidayat; Indra Gumay Febryano; Dewi Agustina Iryani; Agus Haryanto; Udin Hasanudin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 1 (2020): Maret 2020
Publisher : The University of Lampung

ABSTRACT Palm oil (Elaeis guineensis) is one of the agricultural biomass. Palm oil solid waste that is relatively easy to find is empty fruit bunches (EFB). EFB biomass is converted into pellets to get a uniform size, then heated through torrefaction into bioenergy so that its utilization is more optimal and can increase economic value. Torrefaction is slow heating of biomass with a temperature range of 200oC-300oC with a state of little oxygen or without oxygen. Torrefaction was carried out using an electric furnace with a target temperature of 280oC and a duration of 20 minutes. The purpose of this paper is to determine the effect of torrefaction on the chemical properties of EFB pellets. The results of this study are hemicellulose and cellulose decreased by 0,58% - 0,77%, this happens because hemicellulose and cellulose are degraded with increasing temperature and time of torrefaction. This is confirmed by changes in the line spectrum for FT-IR analysis where C-O, C=C, C-H, and O-H experience changes in the line spectrum that indicate changes in chemical composition. while lignin increased after torrefaction by 2,71%. Water content in EFB pellets decreased by 0,65%, while EFB pellets without treatment (control) by 14,95% after torrefaction became 22,70%. The volatile content of EFB control pellets was 69,55% after torrefaction to 61,21% so that the fixed carbon content of EFB control pellets was 10,03% and EFB pellets after torrefaction became 14,23%. The heat value of EFB pellets before torrefaction is 15,82 MJ/kg, and after torrefaction, the heating value increases to 18,28 MJ/kg so that it reaches the standard requirements of SNI 8675: 2018 as biomass pellets. Torrefaction pellets from EFB can provide a large increase in the quality of the bioenergy chemical properties. Biomass torrefaction is very suitable for combustion in power plants and home industries. Keywords:Chemical composition, FTIR,oil palm empty fruit bunches, torrefaction ABSTRAK Kelapa sawit (Elaeis guineensis) merupakan salah satu biomassa hasil pertanian. Limbah padat perkebunan sawit yang relatif mudah dijumpai ialah tandan kosong kelapa sawit (TKKS). Biomassa TKKS dikonversikan menjadi pelet untuk mendapatkan ukuran yang seragam, kemudian ditorefaksi untuk digunakan sebagai bioenergi sehingga pemanfaatannya lebih optimal dan dapat meningkatkan nilai ekonomi. Torefaksi merupakan pemanasan biomassa secara perlahan dengan kisaran suhu 200oC – 300oC dengan keadaan sedikit oksigen bahkan tanpa oksigen. Torefaksi dilakukan menggunakan electric furnace dengan target suhu 280oC dan durasi selama 20 menit. Tujuan dari penelitian ini ialah untuk mengetahui pengaruh torefaksi terhadap sifat kimia pelet TKKS. Hasil dari penelitian ini ialah kadar hemiselulosa dan selulosa menurun sebesar 0,58% - 0,77% hal tersebut terjadi karena hemiselulosa dan selulosa terdegradasi seiring dengan peningkatan suhu dan waktu torefaksi. Hal tersebut diperkuat dengan perubahan gugus fungsi terhadap analisis FT-IR dimana gugus C-O, C=C, C-H, dan O-H mengalami perubahan spektrum garis pita yang menandakan adanya perubahan komposisi kimia. Sedangkan kadar lignin meningkat setelah torefaksi sebesar 2,71%. Kadar air pada pelet TKKS menurun sebesar 0,65 %, sedangkan abu pelet TKKS tanpa perlakuan (kontrol) sebesar 14,95% setelah tertorefaksi menjadi 22,70. Zat terbang pelet TKKS kontrol sebesar 69,55% setelah tertorefaksi menjadi 61,21% sehingga diperoleh nilai karbon terikat pelet TKKS kontrol sebesar 10,03% dan pelet TKKS yang tertorefaksi sebesar 14,23%. Nilai kalor pelet TKKS sebelum torefaksi sebesar 15,82 MJ/kg, dan setelah torefaksi nilai kalor meningkat menjadi 18,28 MJ/kg sehingga memenuhi SNI 8675:2018 pelet biomassa. Pelet TKKS yang tertorefaksi dapat memberikan peningkatan besar dalam kualitas sifat kimia bioenergi. Biomassa yang tortorefaksi sangat cocok untuk pembakaran di pembangkit listrik dan industri. Kata Kunci: FTIR,komposisi kimia,tandan kosong kelapa sawit, torefaksi

Keawetan dan Stabilitas Dimensi Papan Partikel Hibrida Bambu-Kayu dengan Perlakuan Steam dan Perendaman Panas (Durability and Dimensional Stability of Hybrid Particleboard of Bamboo-Wood with Steam and Hot Water Immersion Treatment) Wahyu Hidayat; Intan F Suri; Rahmat Safe’i; Christine Wulandari; Wisnu Satyajaya; Indra G Febryano; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i1.462

Development of bamboo as an alternative material for particleboard production has been increasing due to its fast growth, high productivity, high strength property, and light weight. The aims of this study were to determine the effects of particle pre-treatment on the durability and dimensional stability of particleboard. Particles were made from betung (Dendrocalamus asper)/B, jabon (Anthocepallus cadamba)/J, and sengon (Falcataria moluccana)/S pretreated by steam and hot water immersion. Five combinations of particleboard consisted of three homogenous boards (B-B-B, J-J-J, S-S-S) and two hybrid-particleboards (J-B-J, S-B-S) were manufactured using urea formaldehyde of 10% resin level and target density of 0.6 g cm-3. Durability of particleboards was evaluated by grave-yard test and the dimensional stability of particeboards was determined by measuring thickness swelling during a wet-dry cyclic test. The results showed that pre-treatment on particles significantly improved the durability and dimensional stability of the boards, showing lower weight loss and thickness swelling than control boards. Homogenous wood particleboards (J-J-J and S-S-S boards) showed higher weight loss and thickness swelling than bamboo particleboard (B-B-B), combining wood and bamboo particles into hybrid-particleboards (J-B-J and S-B-S boards) has improved the durability and dimensional stability of the boards.

Physical, Mechanical, and Durability Properties of OSB Prepared from CCB Treated Fast Growing Tree Species Strands Wahyu Hidayat; Anne Carolina; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The objective of this research was to evaluate the effect of preservative treatment of strands on the properties of oriented strand board (OSB) made from Paraserianthes falcataria, Maesopsis eminii and Acacia mangium strands. Prior to OSB manufacturing, strands were treated with chromium copper boron (CCB) soaking with concentration of 2% for 6 h. Three (3) layers OSB bonded with 7% of methylene diphenyl isocyanate (MDI) resin were produced with the core layer orientation perpendicular to the face and back layers. The results indicated that soaking strand with CCB significantly decreased the water absorption (WA) and thickness swelling (TS) values of OSB after immersed in water for 24 hours. Preservative treatment significantly decreased the mechanical properties of OSB (modulus of rupture/MOR parallel, modulus of elasticity/MOE parallel and internal bond/IB). Almost all board met the requirement of CSA 0437.0 standard for grade O-1 OSB panels, except board made from P. falcataria treated with preservative which did not achieve the requirement of TS, MOE in parallel direction, and IB. Preservative treatment strongly affected the durability of OSB. Soaking strand with CCB increased the resistance of OSB against termites attack 13.0 times higher than control board.Key words: chromium copper boron, fast growing tree species, methylene diphenyl isocyanate, oriented strand board

Co-Authors Abimanyu, Bondan Adesna Fatrawana Adesna Fatrawana Afif Bintoro Agus Haryanto Agus Haryanto Agus Haryanto Agus Setiawan Ainin Niswati Ainin Niswati Ainin Niswati Alim Fadila Rahman Anis Ambarwati Anne Carolina Apri H Iswanto Apriyanita Pitri Ningrum Apriyanita Pitri Ningrum Bagus Saputra Bagus Saputra Bagus Saputra Bagus Saputra Bangun Adi Wijaya Bangun Adi Wijaya Bondan Abimanyu Byantara Darsan Purusatama Byung Bae Park Ching K Man Christine Wulandari Christine Wulandari Christine Wulandari Deded Sarip Nawawi Denni Prasetia Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Dian Iswandaru Dian Iswandaru Donghyuk Chun Doni Hapsoro Duryat Duryat Duryat Duryat Elvara D Satria Eva Yunita Eva Yunita Fahriya Puspita Sari Faizatul FALAH Falah Rizkasumarta Fauzi Febrianto Febryanto, Indra Gumay Go Un Yang Gusri Akhyar Ibrahim Handian Purwawangsa Hari Kaskoyo Hendra Prasetia Hendra Prasetia Hendra Prasetia Hokyung Choi Hyuk Im Indra G Febryano Indra Gumay Febryano Intan F Suri Intan Fajar Suri Irma Thya Rani Irma Thya Rani Irma Thya Rani Irwan Sukri Banuwa Ismayati, Maya Jacky Michael Pah Jiho Yoo Jiho Yoo Jiho Yoo Jong Ho Kim Karina Gracia Agatha Tambunan Karina Gracia Agatha Tambunan Laksana, Raden Permana Budi Lina Nur Aminah Lina Nur Aminah Lisman Suryanegara Lubis, Muhammad Adly Rahandi Mareli Talaumbanua Marwanto Marwanto Marwanto Maulana, Sena Melya Riniarti Mia Putri Utami Mia Putri Utami Mohamad I Sya'bani Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Alfaridzi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Naili Rahmah Nam Hun Kim Nam Hun Kim Nissa Nurfajrin Solihat Nurpine Nadeak Nurpine Nadeak Oktarine Melly Aminah Harum Pangestu Prasetyo Park, Byung Dae Rafical Cahaya Utama Rahmat Safe’i Rahmi Adi Bazenet Rahmi Adi Bazenet Rahmi Adi Bazenet Rani, Irma Tya Rara Diantari Rasyidah Amany Repha Sera Yunita Rio Ardiansyah Murda Rita K Sari Rita Kartika Sari Rommy Qurniati Rubiyanti, Tri Rudi Hilmanto Rudi Hilmanto Rynaldo Davinsy Safeâ€™i, Rahmat Samsul Bakri Samsul Bakri Sandi Asmara Sangdo Kim Sangdo Kim Sangdo Kim See P Hwee Seldi Prayoga Seung Hwan Lee Shalehudin Denny Ma’ruf Sihyun Lee Sihyun Lee Sihyun Lee Silvia Uthari Nuzaverra Mayang Mangurai Siti Mutiara Ridjayanti Siti Mutiara Ridjayanti Sofiyan, Ade Soleh Muhamad Soleh Muhamad Soohyun Kim Sri Hidayati Sumaryo Gito Saputro Susni Herwanti Tengku Muhammad Renzy Hariz Tri Maryono Tri Putri Siadari Tri Putri Siadari Tri Yulianto Tri Yulianto Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Widya FATRIASARI Winarno, Gunardi Djoko Wisnu Satyajaya Yadav, Sumit Manohar Yazid Bindar Yogi Sulistio Yusuf Sudo Hadi Zaini, Lukmanul Hakim

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