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Wahyu Hidayat
Jurusan Kehutanan, Fakultas Pertanian, Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Hybrid Biopellets Characterization of Gamal Wood (Gliricidia sepium) and Robusta Coffee Husk at Various Compositions Putri, Mangifera Indica Dhaifullah Wangun; Murda, Rio Ardiansyah; Maulana, Sena; Octaviani, Eti Artiningsih; Sari, Nurika Arum; Hasibuan, Mhd Muhajir; Aulia, Fauzan; Hidayat, Wahyu
Jurnal Sylva Lestari Vol. 12 No. 3 (2024): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i3.913

Abstract

Biopellets from gamal wood (Gliricidia sepium) as a biomass energy resource could be an alternative to replace fossil fuels due to having met standards based on moisture content, ash content, fixed carbon, calorific value, and density. Unfortunately, they still had high levels of volatile matter. Robusta coffee husk was a material with high nitrogen content, which is suspected of being able to bind aromatic substances in volatile organic compounds. This study aims to evaluate the quality of biopellets and determine the optimum composition of the biopellets from gamal wood and coffee husk. The blended composition of gamal wood and coffee husk biopellets studied were 100:0, 75:25, 50:50, 25:75, and 0:100. The biopellets were manufactured using the material size of 40-60 mesh with a pressure of 173.51 MPa. The best biopellet was produced in the composition of 75% gamal wood and 25% coffee husk, with a density of 0.85 g/cm3, moisture content of 8.03%, ash content of 3.92%, volatile substances of 78.01%, fixed carbon of 18.07%, and calorific value of 4,176 cal/g. The biopellet quality met the standards of SNI 8021:2014 and EN 14061-2, except for ash content. Adding coffee husk reduced gamal wood biopellet’s volatile matter, increasing the fixed carbon and density of gamal wood biopellets. Keywords: alkali immersion, bamboo, bio-composite, oriented strand board, pre-treatment
Species Diversity and Herbal Medicine Utilization of Mangrove Plants: A Comparative Study among Coastal Communities in Lampung Duryat; Yuwono, Slamet Budi; Riniarti, Melya; Hidayat, Kuswanta Futas; Hidayat, Wahyu; Rodiani; Damai, Abdulah Aman; Prasetyo, Pangestu; Dani, Hafiz Ansori
Jurnal Sylva Lestari Vol. 12 No. 3 (2024): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i3.936

Abstract

Biodiversity and local wisdom in mangrove ethnopharmacology are essential to study as a basis for conservation and health development. The study objectives were determining mangroves’ diversity and distribution, their use as herbal medicine, and their trusted medical properties. Vegetation analysis was employed to study the mangrove diversity. An interview and observation were conducted to study mangrove utilization. Mangrove diversity was determined by examining the diversity index. Mangrove utilization was determined by descriptive comparative analysis and calculating species use value, plant part value, and fidelity level. Total 28 species of mangroves from 15 families in Lampung. The highest mangrove diversity is in Lampung Timur (22 species; Shannon Index (H') = 1.93), followed by Pesawaran (21 species; H' = 1.96), Tulang Bawang (12 species; H' = 1.24), and Lampung Selatan (11 species H' = 0.90). Surprisingly, a species was used for different purposes in different areas. S. caeseolaris has the highest species use value of 0.1591. Leaves have the highest plant part value of 58%. R. apiculata, as an antiseptic, and S. caseolaris, as an antioxidant, have the highest fidelity level, 14%. Eight mangrove species trusted by the community have ten medical properties. This finding could be the basis for scientific studies to find new sources of medicine. Keywords: biodiversity, costal area, ethnopharmacology, herbal medicine, mangrove
Hydrolytic Stability of Sengon-Oriented Strand Board Bonded with Hybrid Phenol-Formaldehyde/Polymeric Methylene Diphenyl Diisocyanate Adhesives Sari, Rita Kartika; Fitrianum, Fadilah; Maulana, Muhammad Iqbal; Hidayat, Wahyu; Winarni, Ina; Iswanto, Apri Heri; Lubis, Muhammad Adly Rahandi
Jurnal Sylva Lestari Vol. 12 No. 3 (2024): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i3.987

Abstract

The hydrolytic stability of oriented strand board (OSB) is critical to guarantee good performance in humid conditions over the long term. The adhesive system impacts hydrolytic stability in addition to the wood strands. This study aims to investigate the hydrolytic stability of OSB bonded with a hybrid adhesive based on phenol-formaldehyde (PF) and polymeric methylene diphenyl diisocyanate (pMDI) modified with NaOH and CaCO3 catalyst. PF was mixed with each catalyst at approximately 1% of the PF solids content. The pMDI was added to the mixture at 2.5% and 5% of the PF solid content. The hybrid PF/pMDI adhesives were then used for OSB production. The hydrolytic stability of OSB samples was tested at 25°C and 100°C and compared with OSB using unmodified PF as a control. After hydrolysis, OSBs with hybrid PF/pMDI adhesives had lower weight loss than control adhesives at both temperatures. The pH indicates no significant polymer dissolution from the board into the hydrolysis solution. Hybrid PF/pMDI adhesives with a CaCO3 catalyst obtain significantly lower thickness swelling values. The findings of this study have significant implications for developing high-performance, environmentally-friendly OSB products. Keywords: eco-friendly composite, hydrolytic stability, oriented strand board, Paraserianthes falcataria, phenol-formaldehyde
Environmentally Friendly Paving Block Based on Wood Waste: The Effect of Rubber Wood Waste Content on the Physical-Mechanical Properties of Paving Block Fauzi, Daffa Naufalian; Saputra, Bagus; Riniarti, Melya; Duryat, Duryat; Suri, Intan Fajar; Hidayat, Wahyu
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.997-1005

Abstract

The wood sawing industry generates significant waste, consisting of wood chips, wood scraps, and sawdust. This research aims to evaluate the effect of rubber wood sawdust addition on the moisture content, water absorption capacity, and compressive strength of paving blocks. The study was conducted in August–September 2023, starting with preparing raw materials, composition planning, and test specimen fabrication. The parameters in this study included density testing, moisture content, water absorption capacity, and compressive strength. The density test results for treatments P0 were 1.11 g/cm3, P1 1.09 g/cm3, P2 1.07 g/cm3, P3 1.08 g/cm3, and P4 1.09 g/cm3. The moisture content test yielded values of 11.38% for P0, 12.56% for P1, 12.94% for P2, 13.24% for P3, and 13.80% for P4. The water absorption capacity values obtained were, for P0, 5.17%; P1, 5.40%; P2, 6.36%; P3, 8.11%; and P4, 9.27%. Compressive strength tests produced values for P0 at 7.19 N/mm2, P1 at 5.67 N/mm2, P2 at 4.22 N/mm2, P3 at 3.48 N/mm2, and P4 at 3.07 N/mm2. The addition of rubber wood sawdust to paving blocks significantly influences density, moisture content, water absorption capacity, and compressive strength values. Keywords: Composition, Compressive strength, Paving block, Sawdust waste.
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): Volume 14, Number 2, 2020
Publisher : Jurnal Rekayasa Proses

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

Abstract

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.
Pelatihan Pembuatan Kuliner Berbahan Dasar Porang Winarno, Gunardi Djoko; Safe’i, Rahmat; Kaskoyo, Hari; Darmawan, Arief; Asmarahman, Ceng; Harianto, Sugeng P.; Wulandari, Christin; Setiawan, Agus; Dewi, Bainah Sari; Riniarti, Melya; Hidayat, Wahyu; Salsabila, Sahda; Fitriana, Yulia Rahma; Hilmanto, Rudi
Repong Damar: Jurnal Pengabdian Kehutanan dan Lingkungan Vol 3, No 2 (2024): November
Publisher : Magister of Forestry,Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/rdj.v3i2.9905

Abstract

Pemanfaatan porang sebagai bahan dasar kuliner sangat penting dilakukan untuk meningkatkan kualitas rasa produk. Selama ini porang masih belum digunakan oleh petani walaupun mereka mempunyai bahan umbi porang. Kondisi ini terjadi karena mereka tidak tahu bagaimana pengolahan porang dan meramunya untuk kuliner. Tujuan Pelatihan adalah membangun ketrampilan petani dalam membuat kuliner berbahan dasara porang. Pelatihan dilakukan di Desa Hanura Pesawaran Lampung. Jumlah peserta yang dilatih sebanyak 30 orang yang berasal dari Kelompok Tani Hutan (KTH) Sistem Hutan Kerakyatan (SHK) Lestari Hanura Pesawaran Lampung. Peran mitra (kelompok tani Sistem Hutan Kerakyatan Lestari adalah penyedia umbi porang yang selama ini tidak dimanfaatkan karena harga umbinya sangat rendah hingga mencapai Rp 2.500. Kelompok tani berharap tanaman porang dapat dikembangkan di areal kelola mereka.  Untuk peningkatan hasil panen diharapkan adanya mesin pengolah umbi porang menjadi glukomanan sehingga nilai jual porang menjadi meningkat melalui pengolahan porang menjadi berbagai kuliner seperti bakso dan mpek-mpek. Para petani diharapkan menjadi pioneer untuk membuat tepung porang dan bakso. Dampak yang akan terjadi adalah petani yang selama ini memiliki tanaman porang menjadi terampil dalam mengolah porang kuliner yang dapat dikonsumsi ataupun di pasarkan. Sehingga kegiatan ini dapat memberikan dampak positif bagi peningkatan kesejahteraan petani desa Hanura dan sekitarnya.
HUBUNGAN PERUBAHAN KESEHATAN HUTAN DENGAN PENDAPATAN PETANI (STUDI KASUS HUTAN RAKYAT DI DESA KUBU BATU) Safe’i, Rahmat; Yuwono, Slamet Budi; Winarno, Gunardi Djoko; Asmarahman, Ceng; Darmawan, Arief; Hidayat, Wahyu; Gunawan, Rhezandy; Fajri, Ahmad Khairil
Jurnal Sylva Scienteae Vol 7, No 5 (2024): Jurnal Sylva Scienteae Vol 7 No 5 Edisi Oktober 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jss.v7i5.13965

Abstract

A healthy community forest can provide optimal benefits for the environment and the economy, particularly in increasing farmers' income. This study aims to analyze changes in community forest health and its relationship to farmers' income in Kubu Batu Village, Way Khilau District, Pesawaran Regency. The Forest Health Monitoring (FHM) method was used to assess forest health, while quantitative analysis was employed to calculate farmers' income. Data were collected through interviews and ecological assessments in the field. The results showed a significant decline in forest health conditions from 2020 to 2024, with the average health score decreasing from 7.35 to 4.68. Additionally, a positive correlation was found between forest health and farmers' income, where better forest conditions resulted in higher income for farmers. However, the strength of this relationship slightly weakened in 2024. The decline in forest health was largely due to forest fires, which affected biodiversity and land productivity. Therefore, restoration efforts and better forest management are necessary to maintain productivity and improve the welfare of community forest farmers.Hutan rakyat yang sehat dapat memberikan manfaat optimal bagi lingkungan dan perekonomian masyarakat, terutama dalam meningkatkan pendapatan petani. Penelitian ini bertujuan untuk menganalisis perubahan kondisi kesehatan hutan rakyat dan hubungannya dengan pendapatan petani di Desa Kubu Batu, Kecamatan Way Khilau, Kabupaten Pesawaran. Metode yang digunakan adalah Forest Health Monitoring (FHM) untuk menilai kondisi kesehatan hutan serta analisis kuantitatif untuk menghitung pendapatan petani. Data dikumpulkan melalui wawancara dan penilaian ekologi di lapangan. Hasil penelitian menunjukkan bahwa terjadi penurunan signifikan dalam kondisi kesehatan hutan dari tahun 2020 ke 2024, dengan rata-rata nilai kesehatan menurun dari 7,35 menjadi 4,68. Selain itu, terdapat hubungan positif antara kondisi kesehatan hutan dan pendapatan petani, di mana semakin baik kondisi hutan, semakin tinggi pula pendapatan yang diperoleh petani. Namun, kekuatan hubungan ini sedikit melemah pada tahun 2024. Penurunan kesehatan hutan sebagian besar disebabkan oleh kebakaran hutan, yang berdampak pada biodiversitas dan produktivitas lahan. Oleh karena itu, upaya pemulihan dan pengelolaan hutan yang lebih baik diperlukan untuk menjaga produktivitas dan kesejahteraan petani hutan rakyat.
Mangrove Species Diversity and Its Use as Medicinal Plant by Coastal Communities of Lampung Timur Indonesia Duryat Duryat; Slamet Budi Yuwono; Melya Riniarti; Kuswanta Futas Hidayat; Wahyu Hidayat; Rodiani Rodiani; Abdullah Aman Damai
Journal of Multidisciplinary Applied Natural Science Vol. 4 No. 2 (2024): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.217

Abstract

Coastal communities have empirically utilized and proven the medicinal properties of mangrove plants. The objective of the study was to determine the species diversity of mangrove plants and their use as herbal medicine on the coast of Lampung Timur, Sumatra, Indonesia. Mangrove plant diversity was obtained through vegetation analysis and diversity index calculation. The use of mangroves as medicine was obtained through interviews and descriptive comparative analysis. The study revealed that the mangrove forest located on Lampung Timur Coastal comprises 22 species from 12 families. Out of these 22 species, 12 are true mangroves, and the remaining 10 are mangrove associates. Among the 12 true mangroves, the majority (10 species) are major mangroves, while the other two are minor. The diversity index of the Lampung Timur mangrove forest is categorized as moderate (H'= 1.9580). The use of mangrove plants as herbal medicine persists in the Lampung Timur Coastal community. Among the users of mangrove herbal medicine, the majority (55.71%) are from the older generation. Additionally, 64% of users are male, 57.37% are categorized as low-income, and 60.12% identify as Javanese based on ethnicity. The community uses various plant species for medicinal purposes. Avicennia marina is used as an antiseptic, anti-histamine, and source of vitamins. Acanthus ilicifolius is used as an anti-rheumatism and muscle ache medicine/analgesic. Rhizophora apiculata is used as an antipyretic, R. mucronata is used to increase stamina/vitality, and Soneratia caseolaris is used as an anti-cholesterol and anti-oxidant.
Field Evaluation of Biochar Application on the Early Growth of Falcataria moluccana: Effects of Pyrolysis Temperatures and Biochar Application Rates Wijaya, Bangun Adi; Riniarti, Melya; Hidayat, Wahyu; Prasetia, Hendra; Yoo, Jiho; Park, Byung Bae
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1134

Abstract

Faltacaria moluccana at its early plantation, is devastated by heat and water stress due to current global climate change. Production forests in Indonesia suggested to use biochar to enhance the durability of early growth F. moluccana in the field. Empty fruit bunches (EFB), a gigantic abundant waste material in Indonesia, pose its potential as biochar feedstock. This study aims to evaluate the effects of EFB biochar on the growth of F. moluccana for one year in a field setting. The experiment used two biochar application rates (25 and 50 tons/ha) and biochar produced at two pyrolysis temperatures (400°C and 600°C). Climatic factors (rainfall and average temperature) were monitored to assess how biochar interacted with field conditions to influence the growth of F. moluccana. EFB biochar increased height and diameter increment by up to 25% and 42%, respectively, compared to control after one year. While pyrolysis temperatures show no impact on growth, biochar application rates of 25 and 50 tons/ha significantly boost diameter increments by 36% and 42%, respectively, compared to controls, without affecting height. Biochar also improves monthly growth increments under water and heat stress. EFB biochar optimizes growth under current climate conditions in Indonesia and mitigates the negative effects of extreme temperature fluctuations. Keywords: biochar, early plant growth, empty fruit bunch, Faltacaria moluccana, field experiment
Characteristics of Cold-Setting Adhesive Derived from Waste Styrofoam for Bonding Laminated Gmelina (Gmelina arborea) Wood Karliati, Tati; Dungani, Rudi; Hadiyane, Anne; Hidayat, Wahyu; Lubis, Muhammad Adly Rahandi
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1080

Abstract

Developing cold-setting adhesives derived from waste styrofoam (WS) of expanded polystyrene foam for laminated gmelina wood involves innovative recycling of WS into functional adhesives. As a type of thermoplastic polymer, WS can be used as an adhesive at room temperature. In this study, WS was functionalized into cold-setting adhesives through dissolution and cross-linking reaction with methylene diphenyl diisocyanate (MDI) at a concentration of 40% w/v at 60°C. The mixture was then stirred at 200 rpm for 30 minutes. The adhesive is characterized by its ability to be set at room temperature, offering environmental benefits and practical applications in wood lamination. Solids content, gelation time, viscosity, cohesion strength, functional group analysis, morphological features, and curing temperature analysis were performed to characterize the cold-setting adhesives. The WS-MDI-40% had 62.4% solids content, 906.8 mPa.s viscosity, 182.3 Pa cohesion strength, and 197.8 minutes of gelation time at room temperature. The adhesion performance was evaluated in laminated wood using gmelina wood at glue spread rates of 250 and 300 g/m2 and cold-pressed at various durations. The block shear strength value of laminated wood bonded with WS-MDI-40% at 300 g/m2 and cold-pressed for 24 hours was higher than that of other samples, reaching 8.2 MPa, which met the Japanese Agricultural Standard (JAS No. 234) for glued laminated timber, exceeding the minimum requirement of 5.4 MPa. Fourier transform infrared (FTIR) spectroscopy revealed that the cold-setting WS-MDI-40% were cross-linked via urethane linkages (R–NH–COO–R). The free –N=C=O groups could react with the –OH groups of gmelina wood to produce laminated wood during cold-pressing. This study suggested a recycling alternative of WS into a cold-setting wood adhesive for laminated wood, which can be utilized in interior applications. Keywords: adhesive, block shear strength, cohesion strength, cold-setting, gmelina wood
Co-Authors Abdullah Aman Damai Abimanyu, Bondan Abimanyu, Bondan Adesna Fatrawana Adesna Fatrawana Afif Bintoro Afif Bintoro Agus Haryanto Agus Haryanto Agus Haryanto Agus Haryanto Agus Setiawan Ahmad Izzuddin Arrofi Ainin Niswati Ainin Niswati Ainin Niswati Al Qorny, Faiz Alim Fadila Rahman Anis Ambarwati Anne Carolina Apri H Iswanto Apri Heri Iswanto Apri Heri Iswanto Apriyanita Pitri Ningrum Apriyanita Pitri Ningrum Arief Darmawan Augustina, Sarah Aulia Asmara Loka Br Tarigan Awandi, Hafizh Bagus Saputra Bagus Saputra Bagus Saputra Bagus Saputra Bainah Sari Dewi Bainah Sari Dewi Bainah Sari Dewi Bangun Adi Wijaya Bangun Adi Wijaya Bondan Abimanyu Bugae Park Bugae Park Byantara Darsan Purusatama Byung Bae Park Ceng Asmarahman Ching K Man Christine Wulandari Christine Wulandari Christine Wulandari Christine Wulandari Chrisyan Fito Simamora Damai, Abdulah Aman Dani, Hafiz Ansori Deded Sarip Nawawi Denni Prasetia Destia Novasari Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Dian Iswandaru Dian Iswandaru Dini Lestari, Dini Donghyuk Chun Doni Hapsoro Dungani, Rudi Duryat Duryat Duryat Duryat Duryat Duryat, Duryat Duryat, Duyat Elvara D Satria Eti Artiningsih Octaviani Eva Yunita Fahriya Puspita Sari Faiz Al Qorny Faizatul FALAH Fajar Nugraha Fahriza Fajri, Ahmad Khairil Fauzan Aulia Fauzi Febrianto Fauzi, Daffa Naufalian Febrian, Ardi Febryanto, Indra Gumay Fitriana, Yulia Rahma Fitrianum, Fadilah Go Un Yang Gunawan, Rhezandy Gusri Akhyar Ibrahim Gusti Wijaya Hadida, Ratu Husaina Hadiyane, Anne Hafizh Awandi Handian Purwawangsa Hari Kaskoyo Hari Kaskoyo Harianto, Sugeng P. Harianto, Sugeng Prayitno Hendra Prasetia Hendra Prasetia Hendra Prasetia Hendra Prasetia Hendra Prasetia Hokyung Choi Hyuk Im Ina Winarni, Ina Indra G Febryano Indra Gumay Febryano Indra Gumay Febryano Intan F Suri Intan Fajar Suri Irma Thya Rani Irma Thya Rani Irma Thya Rani Irma Thya Rani Irwan Sukri Banuwa Irwan Sukri Banuwa Ismayati, Maya Jacky Michael Pah Jiho Yoo Jiho Yoo Jiho Yoo Jiho Yoo Jong Ho Kim Kadek Wikan Nandini Karina Gracia Agatha Tambunan Karina Gracia Agatha Tambunan Kaskoyo, Hari Kim, Nam Hun Kukuh Setiawan Kuswanta Futas Hidayat Kuswanta Futas Hidayat Laksana, Raden Permana Budi Lia Mulyana Lina Nur Aminah Lina Nur Aminah Lisman Suryanegara Lubis, Muhammad Adly Rahandi Manggar Arum Aristri Mareli Talaumbanua Marwanto Marwanto Marwanto Maulana, Muhammad Iqbal Maulana, Sena Maulana, Sena Maulani, Qori Medita Hermawan Melya Riniarti Melya Riniarti Mhd Muhajir Hasibuan Mia Putri Utami Mia Putri Utami Mohamad I Sya'bani Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Aldo Kurniansyah Muhammad Alfaridzi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Naili Rahmah Nam Hun Kim Nam Hun Kim Nindya Triya Puspita Nissa Nurfajrin Solihat Nugraha, Muhammad Dimaz Nurpine Nadeak Nurpine Nadeak Oktarine Melly Aminah Harum Park, Byung Bae Park, Byung Dae Permana, Anom Tahta Prasetyo, Pangestu Purusatama, Byantara Darsan Putri, Mangifera Indica Dhaifullah Wangun Rafical Cahaya Utama Rahmat Safe'i Rahmat Safe’i Rahmi Adi Bazenet Rahmi Adi Bazenet Rahmi Adi Bazenet Rani, Irma Tya Rara Diantari Rasyidah Amany Rianjanu, Aditya Rini Nurindarwati Rio Ardiansyah Murda Rita K Sari Rita Kartika Sari Rodiani Rodiani Rodiani Rommy Qurniati Rommy Qurniati Rubiyanti, Tri Rudi Hilmanto Rudi Hilmanto Rudi Hilmanto Rudi Hilmanto Rynaldo Davinsy Safe’i, Rahmat Salsabila, Sahda Samsul Bakri Samsul Bakri Samsul Bakri Sandi Asmara Sanena, Tia Silvia Sangdo Kim Sangdo Kim Sangdo Kim Sangdo Kim Saputra, Bagus sari, nurika arum See P Hwee Seldi Prayoga Seldi Prayoga Seung Hwan Lee Shalehudin Denny Ma’ruf Sihyun Lee Sihyun Lee Sihyun Lee Sihyun Lee Silvia Uthari Nuzaverra Mayang Mangurai Siti Aisyah Siti Mutiara Ridjayanti Siti Mutiara Ridjayanti Slamet Budi Yuwono Slamet Budi Yuwono Sofiyan, Ade Sofiyan, Ade Soleh Muhamad Soleh Muhamad Soohyun Kim Sri Hidayati Sumaryo Gito Saputro Suri, Intan Fajar Susni Herwanti Susni Herwanti Susni Herwanti Suwanda, Astri Aulia Tarmizi Taher Tati Karliati Tengku Muhammad Renzy Hariz Tri Putri Siadari Tri Putri Siadari Tri Yulianto Tri Yulianto Tri Yulianto Tsani, Machya Kartika Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Utami, Mia Putri Wahyu Abdul Rahman Wana Putri Anastasya Hutasoit Widya FATRIASARI Wijaya, Bangun Adi Winarno, Gunardi Djoko Winarno, Gunardi Djoko Wisnu Satyajaya Wulandari, Christin Yadav, Sumit Manohar Yazid Bindar Yogi Sulistio Yoo, Jiho Yusuf Sudo Hadi Zaini, Lukmanul Hakim