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Endah Sayekti
Jurusan Kimia FMIPA Universitas Tanjungpura
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Extract of Rhoeo Discolor Leaf as a Reducing and Stabilizing Agent in the Synthesis of Silver Nanoparticles Gusrizal, Gusrizal; Sayekti, Endah; Radianti, Sri
Molekul Vol 18 No 3 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.3.8249

Abstract

Silver nanoparticles (AgNPs) have been synthesized using Rhoeo discolor leaf extract as a reducing and stabilizing agent. AgNPs were synthesized by adding silver nitrate to the extract of Rhoeo discolor and incubating it in a boiling water bath. The change in color of the mixture from clear to yellow indicated AgNPs formation. The synthesized AgNPs were spherical and showed an absorption peak at around 410-420 nm. The size of particles was distributed from 92 to 485 nm with an average size of 176 nm, and the polydispersity index was 0.185. The stability test showed that synthesized AgNPs were stable for three months of storage at ambient temperature. The extract of Rhoeo discolor were responsible for reducing silver ion and stabilizing the synthesized AgNPs.
Pengaruh Variasi Garam Ammonium Terhadap Keasaman Zeolit Alam Pada Reaksi Perengkahan Minyak Jelantah Fabiani, Verry A.; Silalahi, Imelda H.; Sayekti, Endah
Indonesian Journal of Chemical Research Vol 5 No 1 (2017): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2017.5-ver

Abstract

Natural zeolite modification with the addition of ammonium salt variations was conducted. The modification was conducted by demineralization method, dealumination and followed by activation of ammonium salt. The types of activators were ammonium chloride, ammonium nitrate and ammonium fluoride. The effect of ammonium salt was assessed through acidity parameter with Si/Al ratio variable and applied catalyst for catalytic cracking of waste cooking oil. The results showed that the activation of natural zeolite by using ammonium chloride salt could increase the acidity of natural zeolite with the highest Si/Al ratio about 15.56. Based on the XRF analysis showed that the reduced amount of Na metal in zeolite about 92.8%. The effect of ammonium salt variation on the acidity of natural zeolites was observed by applying a catalyst in the catalytic cracking of waste cooking oil. Physical characteristic of catalytic cracking products from waste cooking oil indicated all products fulfill the solar standards requirement. The results concluded that ammonium chloride salt was the best activator in natural zeolite modification and generally all ammonium salts gave high acidity effect to natural zeolite in catalytic cracking of waste cooking oil.
Pelatihan Pembuatan Virgin Coconut Oil (VCO) Bagi Anggota Koperasi Konsumen Padaidi Sipatuo Khatulistiwa Sayekti, Endah; Gusrizal, Gusrizal; Alimunddin, Andi Hairil; Sapar, Ajuk; Rudiyansyah, Rudiyansyah; Zahara, Titin Anita; Shofiyani, Anis; Rahmalia, Winda; Widiyananta, Surya; Lestari, Titiek; Rahayu, Warsi Kurnia
Abdimas Galuh Vol 6, No 2 (2024): September 2024
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ag.v6i2.14423

Abstract

Koperasi Konsumen Padaidi Sipatuo Khatulistiwa yang telah beranggotakan 30 orang memiliki potensi tenaga kerja dan potensi pasar dalam merintis unit usaha dan pemasarannya. Salah satu upaya yang dapat dilakukan adalah menjajaki jenis usaha yang mudah, biaya murah dan dapat digunakan oleh berbagai lapisan masyarakat, salah satunya adalah pengolahan sumber daya alam menjadi produk yang bernilai ekonomi. Salah satu potensi yang dapat dikembangkan adalah pemanfaatan kelapa dalam proses pembuatan Virgin Coconut Oil (VCO). VCO merupakan salah satu produk yang memiliki beragam manfaat, selain digunakan untuk menggoreng makanan, ternyata untuk keperluan kesehatan VCO dapat mencegah penyakit jantung, kanker, diabetes, memperbaiki pencernaan, meningkatkan sistem kekebalan tubuh, mencegah infeksi virus HIV, dan SARS. Potensi ini tentunya dapat dikembangkan oleh anggota koperasi, selain untuk memenuhi kebutuhan sendiri ataupun dapat dipasarkan sebagai salah satu jenis usaha produksi dan penjualan bagi Koperasi Konsumen Padaidi Sipatuo Khatulistiwa. Pelaksanaan PKM berlangsung di lokasi salah satu peserta yang merupakan anggota Koperasi Konsumsi Padaidi Sipatuo Khatulistiwa. Peserta yang hadir dalam kegiatan tersebut sebanyak 12 orang yang merupakan perwakilan dari anggota koperasi tersebut. Kegiatan PKM diawali dengan sambutan dari Perwakilan TIM PKM dan Ketua Koperasi, dilanjutkan pemaparan tentang Pembuatan VCO dari Kelapa Dalam. Pada materi ini juga dijelaskan bagaimana manfaat VCO bagi kesehatan dan kendala apa saja yang dihadapi dalam pembuatan VCO. Hasil kegiatan akan dipublikasikan pada jurnal pengabdian atau dalam bentuk hak cipta film dokumenter.
Thermostability and Photostability of Shrimp Waste Oil Based on Sun Protection Factor Value, Erythema Transmission, Pigmentation Transmission and Free Fatty Acid Content Agustiawan, Deri; Rahmalia, Winda; Alimuddin, Andi Hairil; Prayitno, Dwi Imam; Sayekti, Endah
Jurnal Kelautan Tropis Vol 27, No 2 (2024): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v27i2.22775

Abstract

The high production of shrimp is accompanied by an increase in by-products (cephalothorax, carapace, and tail), which are discarded as waste. Therefore, a solution is needed to convert shrimp waste into economic value products like shrimp waste oil (SWO). SWO contains fatty acids and astaxanthin, which have antioxidant activity to scavenge free radicals, so it can prevent skin damage such as wrinkles and dryness. Due to its fatty acids and astaxanthin content, SWO can be applied as a sunscreen. However, heating and irradiation can degrade bioactive compounds that are beneficial for health. Thermostability and photostability tests are needed to determine the best storage conditions for SWO based on sun protector factor (SPF) values, erythema transmission (%Te), pigmentation transmission (%Tp), and free fatty acid (FFA) content. The yield of SWO obtained was 2.569% from 100 grams of dry shrimp waste weight. Analysis by using FTIR showed the presence of astaxanthin content in SWO, while GC-MS showed that the SWO contains up to 32.66% of hexanoic acid. SWO thermostability and photostability tests showed a decrease in SPF values and an increase in %Te and %Tp as heating and irradiation time increased. This is due to the photobleaching effect. There was no significant change in the FFA value, indicating that SWO is quite resistant to heating and irradiation.
Sintesis dan Karakterisasi Zirkonia Tersulfatasi (ZrO2-SO4) dari Pasir Zirkon untuk Adsorpsi Ion Fosfat dalam Larutan Ratnasari, Popon; Shofiyani, Anis; Sayekti, Endah
POSITRON Vol 15, No 1 (2025): Vol. 15 No. 1 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v15i1.92309

Abstract

Pasir zirkon dapat dihasilkan dari pemurnian pasir puya. Pasir zirkon berpotensi untuk dimanfaatkan dalam proses adsorpsi fosfat bila diproses lebih lanjut. Modifikasi zirkonium dengan penambahan sulfat ditujukan untuk meningkatkan kemampuan dalam mengadsorpsi fosfat. Pembuatan zirkonia tersulfatasi (ZrO2-SO4) dilakukan melalui dua tahapan, yakni sintesis zirkonia dari pasir puya dan proses sulfatasi pada zirkonia hasil sintesis. Sintesis zirkonia dari pasir zirkon melalui proses alkali fusi, pencucian, pengeringan dan pelindian asam, serta ekstraksi partikel zirkon melalui pencampuran dengan ammonia, filtrasi, pengeringan dan kalsinasi. Proses sulfatasi melalui tahapan pencampuran zirkonia hasil sintesis dengan ammonium sulfat, pemanasan dan pencucian. Zirkonia tersulfatasi (ZrO2-SO4) dikarakterisasi dengan Fourier Transform Infra Red (FTIR), X-Ray Diffraction (XRD), dan Surface Area Analyzer (SAA). Hasil analisis FTIR menunjukkan bilangan gelombang 435,86; 477,70; dan 535,22 cm-1 yang merupakan vibrasi ulur asimetris Zr-O-Zr, bilangan gelombang 1057,32; 1140,30; dan 1214,18 cm-1 yang merupakan vibrasi ulur asimetris dari gugus S-O, dan vibrasi ulur simetris S=O, serta bilangan gelombang 3432,86 dan 1636,76 cm-1 yang merupakan vibrasi ulur dan tekuk dari O-H. Hasil analisis XRD menunjukkan puncak serapan ZrO2-SO4 pada sudut 2θ 30,5232o; 35,2931o; 44,6259o; 50,7699o ; dan 60,5944o yang memiliki % intensitas relatif berturut-turut 100; 15,86; 14,96; 43,19; dan 22,28%. Zirkonia tersulfatasi (ZrO2-SO4) memiliki luas permukaan 167,535 m2/g, volume pori 0,20 cc/g dan diameter pori 2,39 nm. Zirkonia tersulfatasi (ZrO2-SO4) mempunyai kemampuan adsorpsi yang baik terhadap fosfat dalam larutan, dengan kapasitas sebesar 22,78 mg/g).
PELARUTAN SILIKA PADA FRAKSI KUARSA KAOLIN MENGGUNAKAN Burkholderia cenocepacia Azhar, Annisa Sylvania; Wahyuni, Nelly; Sayekti, Endah
Indonesian Journal of Pure and Applied Chemistry Vol 7, No 3 (2024)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v7i3.91962

Abstract

Dissolution of silica (SiOâ‚‚) from its insoluble form to a soluble form is crucial for enhancing its availability as precursor material. This study aimed to compare the effectiveness of silica dissolution by the bacterium Burkholderia cenocepacia producing organic acids (citrate, oxalate, acetate) and potassium hydroxide (KOH). Variations in incubation times using Burkholderia cenocepacia at 24, 96, and 192 hours were applied to samples of quartz-kaolin fractions and silica sand. The concentration of dissolved silica was measured using ICP-OES. The results showed maximum dissolution by B. cenocepacia in quartz-kaolin at 0.8493 mg/L (96 hours) and silica sand at 0.8638 mg/L (24 h). The dissolved silica from this procedure can be further processed for applications in agriculture as a nutrient for plants to overcome biotic and abiotic stress.
Pelatihan Pembuatan Virgin Coconut Oil (VCO) Bagi Kelompok Sadar Wisata Teluk Majantu Kelurahan Sedau Singkawang Selatan Sapar, Ajuk; Zaharah, Titin Anita; Alimuddin, Andi Hairil; Shofiyani, Anis; Gusrizal, Gusrizal; Sayekti, Endah; Rudiyansyah, Rudiyansyah; Usman, Thamrin; Widiyantoro, Ari; Nofiani, Risa; Wibowo, M. Agus
Abdimas Galuh Vol 7, No 2 (2025): September 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ag.v7i2.21033

Abstract

Kelurahan Sedau terletak di wilayah Selatan Kota Singkawang Kalimantan Barat. Daerah Teluk Majantu sebagai lokasi kegiatan Pengabdian Kepada Maysarakat (PKM) berada di wilayah pesisir Kelurahan Sedau. Mata pencaharian utama warganya adalah nelayan namun banyaknya pohon kelapa yang tumbuh di pesisir Teluk Majandi menjadi pontesi sumber daa alam yang dapat meningkatkan perekonomian masyarakatnya. Masyarakat Teluk Majantu sebagian besar bergabung pada Kelompok sadar Wisata (POKDARWIS) yang aktivitasnya tidak hanya tentang pengelolaan wisata tetapi juga pengolahan sumber daya alam menjadi produk yang bernilai ekonomi. Kegiatan PKM diawali dengan orientasi lapangan tim pengabdi ke lokasi kegiatan untuk mengidentifikasi masalah mitra, kesepakatan teknologi yang akan diimplementasikan serta penjadwalan PKM. Sehubungan dengan kegiatan PKM yang telah dilakukan sebelumnya, maka warga kelompok sadar wisata menginginkan ada kegiatan pelatihan pembuatan Virgin Coconut Oil (VCO). Oleh karena itu Tim Pascasarjana Kimia FMIPA Untan berinisiatif melakukan kegiatan PKM di lokasi tersebut. PKM dilaksanakan melalui penyampaian materi oleh tim pengabdi dilanjutkan dengan praktek pembuatan VCO. Setelah pelaksanaan pelatihan selesai, dilanjutkan dengan tahapan evaluasi secara kuantitatif dengan menganalisis hasil kuisioner sebelum dan setelah kegiatan dilaksanakan. Berdasarkan respon positif dari warga yang diamati dari antusisme peserta saat pelaksanaan kegiatan, maka dapat disimpulkan bahwa kegiatan ini memiliki dampak positif untuk meningkatkan keterampilan peserta pelatihan.
UJI AKTIVITAS ANTIOKSIDAN FRAKSI ETIL ASETAT BIJI KESUMBA, FRAKSI ETIL ASETAT KUNYIT, DAN KOMBINASINYA Asniati, Asniati; Rahmalia, Winda; Sayekti, Endah
Jurnal Ilmiah Farmasi Vol. 20 No. 1 (2024): Jurnal Ilmiah Farmasi
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jif.vol20.iss1.art2

Abstract

Background: Antioxidants are compounds that can neutralize free radicals, so they can prevent degenerative diseases such as cardiovascular disease, carcinogenesis, and other diseases. Natural ingredients such as kesumba (Bixa orellana L.) seeds and turmeric (Curcuma longa L.) contain natural pigments that have antioxidant activity. Kesumba seeds contain bixin, and turmeric contains curcumin, each of which is an antioxidant compound that can protect cells in the body and prevent oxidative stress due to free radicals.Objective: To determine the effect of the combination ratio of the ethyl acetate fraction of kesumba seeds and the ethyl acetate fraction of turmeric on antioxidant activity.Method: Extraction was carried out by the maceration method, followed by fractionation. A qualitative test of the content of compounds in each extract and fraction of kesumba seeds and turmeric was carried out using the TLC method. The antioxidant activity test of each ethyl acetate fraction of kesumba seeds (FB) and ethyl acetate fraction of turmeric (FK) and their combination was carried out using the DPPH method.Result: The research showed that the antioxidant activity of the ethyl acetate fraction of kesumba seeds (FB) to the ethyl acetate fraction of turmeric (FK) was 242.95, 65.78, 42.48, 108.81, and 51.46 mg/L for each of the mass ratios (1:0), (3:7), (1:1), (7:3), and (0:1). The combination ratio of FB:FK, which is 1:1, has an effect on increasing antioxidant activity. This combination provides a synergistic effect that can increase antioxidant activity, with an IC50 value of 42.48 mg/L.Conclusion: Based on the results of the study, it can be concluded that the combination of the ethyl acetate fraction of kesumba seeds (FB) and the ethyl acetate fraction of turmeric (FK) has an effect on increasing antioxidant activity in the ratio of FB:FK (1:1) with an IC50 value of 42.48 mg/L, which is included in the very strong antioxidant category.Keywords: Kesumba seeds, turmeric, bixin, curcumin, antioxidant Intisari Latar belakang: Antioksidan adalah senyawa yang dapat menetralisir radikal bebas sehingga mampu mencegah penyakit-penyakit degeneratif seperti kardiovaskuler, karsinogenesis dan penyakit lainnya. Bahan alam seperti biji kesumba (Bixa orellana L.) dan kunyit (Curcuma longa L.) mengandung pigmen alami yang memiliki aktivitas antioksidan. Biji kesumba mengandung bixin dan kunyit mengandung kurkumin yang masing-masing merupakan senyawa antioksidan sehingga mampu melindungi sel-sel dalam tubuh dan mencegah stress oksidatif yang diakibatkan oleh radikal bebas. Tujuan: Untuk mengetahui pengaruh rasio kombinasi fraksi etil asetat biji kesumba dan fraksi etil asetat kunyit terhadap aktivitas antioksidan.Metode: Ekstraksi menggunakan metode maserasi dan dilanjutkan dengan fraksinasi. Uji kualitatif kandungan senyawa dalam masing-masing ekstrak dan fraksi bixin dan kurkumin dilakukan menggunakan metode kromatografi lapis tipis (KLT). Uji aktivitas antioksidan masing-masing fraksi etil asetat biji kesumba dan fraksi etil asetat kunyit serta kombinasinya dilakukan menggunakan metode DPPH.Hasil: Hasil penelitian menunjukkan bahwa tiap kombinasi rasio massa fraksi etil asetat biji kesumba (FB); fraksi etil asetat kunyit (1:0), (3:7), (1:1), (7:3) dan (0:1) memiliki aktivitas antioksidan berturut-turut sebesar 242,95; 65,78; 42,48; 108,81; dan 51,46 mg/L. Kombinasi tersebut memberikan efek sinergis yang dapat meningkatkan aktivitas antioksidan dengan nilai IC50 sebesar 42,48 mg/L. Kesimpulan: Berdasarkan hasil penelitian dapat disimpulkan bahwa pada kombinasi fraksi etil asetat biji kesumba (FB) dan fraksi etil asetat kunyit (FK) dengan rasio FB:FK (1:1) memberikan pengaruh pada peningkatan aktivitas antioksidan dengan nilai IC50 sebesar 42,48 mg/L yang termasuk dalam kategori antioksidan sangat kuat.Kata kunci: Biji kesumba, kunyit, bixin, kurkumin, antioksidan
Sustainability Balanced Scorecard: an Alternative to Apply Legitimacy Theory Pertiwi, Imanda Firmantyas Putri; Hidayati, Isnaini Nur; Retno Meilani, Sayekti Endah; Rahmayati, Anim
AL-QARDH Vol 4 No 1 (2019): AL-QARDH
Publisher : Fakultas Ekonomi dan Bisnis Islam Institut Agama Islam Negeri Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Purposes. Sustainability Balanced Scorecard (SBSC) is the development of balanced scorecard as a comprehensive company performance appraisal method, which the assessment focus on financial perspective, customer, internal business processes, growth and learning as well as the social and environmental perspective as an effort of sustainability. This sustainability effort is in line with the legitimacy theory, which states that the company should be run in accordance with the prevailing norms of the place where the company is located. Madukismo Sugar Company (PG. Madukismo) is a company that has potential environmental destruction is the subject of this research. This research is intended to provide an overview of PG Madukismo's performance evaluation using the SBSC method, whether it is able to explain the legitimacy theory.Method. The case study with a descriptive qualitative method by triangulation system becomes a method of this research development.Findings. Outlined, the performance of PG Madukismo shows good results, the financial perspective shows some improvement, profit has increased, as well as efficiency. The customer's perspective also shows satisfactory performance, the high level of customer retention and the minimum level of complaints is enough to explain. The internal business process perspective results are also satisfactory, innovation on production, sales and after-sales processes are considered good. A less encouraging perspective is the perspective of growth and learning, even though employee retention is good but the amount of employee training actually shows a downward trend. Last but not least, is a social and environmental perspective. The results obtained were quite surprising, although in 2016 the news about Madukismo waste management was less pleasant, in 2018 Madukismo was able to improve its waste management and get a positive response from surrounding communities who said that the stench from Madukismo waste continued to decrease.Implication. This research gives insight and detail of how to assess a company using five perspectives of SBSC to prove that legitimacy theory can be applied and bringing the hope of sustainable business.Keyword: Sustainability Balanced Scorecard, green accounting, social and environmental, PG.Madukismo
Aktivitas Tabir Surya Secara In-Vitro Ekstrak dan Fraksi Daun Kedondong (Spondias dulcis Sol. Ex G.Forst) Rudiyansyah; Fathurrahman, Rizal; Sayekti, Endah
Jurnal Riset Kimia Vol. 15 No. 1 (2024): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v15i1.615

Abstract

Excessive sun exposure to the skin can cause redness (erythema) and darkening of the skin (pigmentation). This effect can be prevented by using sunscreen. Kedondong leaves (Spondias dulcis Sol. Ex G. Forst) can act as a natural sunscreen because they contain secondary metabolite compounds with a conjugated double bond structure (chromophore), including phenolic and flavonoid compounds. The presence of conjugated double bonds in phenolic and flavonoid compounds is known to be able to absorb UV radiation thereby reducing its intensity on the skin. This study aims to determine the sunscreen activity of kedondong leaves based on the Sun Protection Factor (SPF), , the percentage of erythema transmission value (%Te), and the percentage of pigmentation transmission value (%Tp) and determine the secondary metabolite groups in kedondong leaf extracts and fractions. The research stages carried out were extraction of kedondong leaves by maceration, dechlorophyllation, followed by fractionation using n-hexane and dichloromethane, to obtain methanol extract, n-hexane fraction, dichloromethane fraction and methanol fraction. Then phytochemical tests were carried out on the extracts and fractions. Phytochemical tests showed that the secondary metabolite compounds in the methanol extract of kedondong leaves were alkaloids, phenolics, steroids and saponins. Furthermore, in the n-hexane fraction are steroids, the dichloromethane fraction is phenolic compounds, and the methanol fraction is alkaloid, phenolic and saponin compounds. Using a UV-Vis spectrophotometer at a wavelength of 200-400 nm, the sunscreen activity test showed that the dichloromethane fraction at a concentration of 120 mg/L was included in the extra protection category with an SPF value of 7,86±0,23; fast tanning with a %Te value of 15,99±0,83 and sunblock with a %Tp value of 32,72±1,09.
Co-Authors Ade Mariadi Aderiya Munika Adhitiyawarman, Adhitiyawarman Agus Wibowo Agustiawan, Deri Ajuk Sapar Alimunddin, Andi Hairil Andi Hairil Alimuddin Andi Hairil Alimuddin Anggelita Anggelita Anim Rahmayati Anis Shofiyani Anis Shofiyani Anjarsari, Nita Ari Widiyantoro Aritonang, Anthoni Batahan Asniati, Asniati Azhar, Annisa Sylvania Dewi Dwi Purwati Ditya Marissa Diva Feraldy Dwi Siswanta Elvi Rusmiyanto Pancaning Wardoyo, Suci Lestari, Mukarlina, Emy Awalliah Eviva, Nur Fabiani, Verry A. Fathurrahman, Rizal Fitriani Fitriani Gusrizal Gusrizal Gusrizal Gusrizal Hafidz Kamarul Hadj Hasanuddin Hidayati, Isnaini Nur Imelda Hotmarisi Silalahi Imroah, Nurfitri Irma Nirmala Jumina Jumina Lestari, Titiek Lia Destiarti Masyita Masyita Minsas, Sukal Muhardi Mustofa Mustofa Narsito Narsito Nelly Wahyuni Nurlina, Nurlina P.W., Elvi Rusmiyanto Pertiwi, Imanda Firmantyas Putri Prayitno, Dwi Prayitno, Dwi Imam Puji Ardiningsih Radianti, Sri Rahayu, Warsi Kurnia Ramadhan, Aditya Nur Ratnasari, Popon Risa Nofiani Risa Nofiani Rosidah, Sofiatun Rudiyansyah Rudiyansyah Rudiyansyah Rudiyansyah Rudiyansyah Salatiana Salatiana Sari, Reny Puspita Shofiyani, Anis Sri Juari Santosa Sri Noegrohati Syah, Nur Rikswan Tariz Zharfan ME Thamrin Usman Thamrin Usman Titik Lestari Titin Anita Zahara Titin Anita Zahara Titin Anita Zahara, Titin Anita Titin Anita Zaharah Tria Susanti Uci Pradina Warsi Kurnia Rahayu Warsidah Warsidah Wibowo, M. Agus Wibowo, Muhamad Agus Widiyananta, Surya Winda Rahmalia Yamin, Bohari Mohd. Yoga Pratama Yudhi Zaharah, Titin Anita