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Optimasi microwave-assisted pretreatment dalam delignifikasi asam oksalat pada kulit kakao menggunakan response surface methodology (RSM) Ahmad Fadhlul Kamal; Efri Mardawati; Eko Heri Purwanto; S. Rosalinda
AGROINTEK Vol 17, No 4 (2023)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v17i4.15471

Abstract

Cocoa (Theobroma cacao L.) pod husk is a solid waste originating from the cocoa beans processing industry in very abundant quantities. The components that make up the cocoa pod husk include cellulose, hemicellulose, and lignin. Cocoa pod husk has a large cellulose content, so it has the potential to be used as cellulose-based bioproducts such as bioethanol. This study aimed to determine the optimum power, irradiation time, and concentration of oxalic acid in the cocoa pod husk microwave-pre-treatment delignification process. The cacao pod husk used in this study is a forastero variety from Pakuwon, Sukabumi, West Java, Indonesia. Cocoa pod husk raw material contains lignin, cellulose, and hemicellulose, respectively 15.73%, 40.14%, and 19.33%. The optimal conditions obtained using the Response Surface Methodology (RSM) model with factors that affect the process are power, irradiation time, and concentration of oxalic acid with response levels of cellulose, hemicellulose, and lignin after microwave pre-treatment. The results of the optimum conditions of power, irradiation time, and concentration of oxalic acid in the microwave assisted-pre-treatment process were 450 Watt, 10 minutes, dan 1%, respectively. The optimum conditions in the delignification process resulted in the levels of lignin, cellulose, and hemicellulose, respectively, which were 8.10%, 39.37%, dan 21.40%. Based on the lignocellulosic test at optimum conditions, the lignin decreased by 48.506%, cellulose decreased by 1.918%, and hemicellulose content increased by 10.709%. The results indicated optimum conditions could be applied in bioethanol and xylitol production
Sunscreen Activity Determination on Hippobroma Longiflora Leaves Extracts Affected to Differences in Simplicia Treatments and Extraction Techniques Awaly Ilham Dewantoro; Selly Harnesa Putri; Efri Mardawati; Desy Nurliasari
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol 9, No 2 (2022): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v9i2.20502

Abstract

Various weeds in paddy rice fields could be utilized as natural polyphenols sources, one of them was kitolod (Hippobroma longiflora (L.) G.Don). Kitolod was widely utilized as traditional medicine by several community groups because of its polyphenols content. Recent trends showed kitolod could be valorized as additive matters in sunscreen products. Polyphenols content, especially flavonoids were able to absorb dangerous spectrum in sunray radiation and it is related to sunscreen activity. This study aimed to evaluate the differences in simplicia treatments and extraction techniques towards total polyphenols content and sunscreen activity on kitolod leaf extracts. Solvent-cold extraction techniques were deployed in this study that consist of water infusion and ethanolic maceration for 24 hours at ambient temperature. Extracts were analyzed by spectrophotometric measurement to determine total phenolics content (TPC), total flavonoids content (TFC), and sunscreen activity by deploying Folin-Ciocalteu assay, AlCl3 colorimetric assay, and Mansur approached assay, respectively. Dry kitolod leaves were extracted by ethanolic maceration techniques provided high yields (15.5±0.3%), high TPC (17.9±0.3 mg GAE/g of solids), high TFC (25.9±0.4 mg QE/g of solids), and moderate sunscreen activity (SPF 11.0±0.1). The results indicated kitolod could be valorized as natural polyphenols sources and additive matters in any cosmetical sunscreen products.
Measurement of Performance Efficiency of Kadatuan Koffie Suppliers Using Data Envelopment Analysis (DEA) Rahmah, Devi Maulida; Fadhlurrahmah, Jauhar; Pujianto, Totok; Ardiansah, Irfan; Mardawati, Efri
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 9, No 1 (2020)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.852 KB) | DOI: 10.21776/ub.industria.2020.009.01.7

Abstract

AbstractHigher market expectation towards coffee products both of its quantity and quality is one of several challenges currently faced by the coffee industry. Maintaining the coffee supply chain through a periodical evaluation of supply chain performance, therefore, is crucial. The research provided measurement of performance efficiency of Kadatuan Koffie company’s suppliers using Data Envelopment Analysis (DEA). This measurement is required to know the supplier’s level of performance efficiency as a consideration in conducting the company’s raw material management. Management of supplier’s activity is essential to maintain the flow of supply chain running smoothly. The data obtained in this research were interview results with farmers or suppliers of raw material or coffee beans for Kadatuan Koffie and the company’s management. The data were processed using DEA by comparing output and input value. According to the measurement of performance efficiency towards seven suppliers of Kadatuan Koffie, three of them are categorized as efficient, namely the farmer in Cimaung, Cibodas and Dago that showed an efficiency value of 1.Keywords: Data Envelopment Analysis, performance efficiency, supplier
The Evaluation of Spray Drying Process Condition on the Characteristics of Xylitol Powder from Oil Palm Empty Fruit Bunches Mardawati, Efri; Rialita, Tita; Suryadi, Edy; Rahmah, Devi Maulida; Anggraini, Sulistina; Bindar, Yazid
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 9, No 1 (2020)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.industria.2020.009.01.3

Abstract

AbstractXylitol is a low-calorie, natural sweetener which has similar sweetness properties to sucrose. Xylitol can be produced from the hemicellulose hydrolysate of Oil Palm Empty Fruit Bunches (OPEFB). Several steps required for this process, including pretreatment, the hydrolysis of xylan to xylose and the reduction of xylose to xylitol. In a commercial market, xylitol is commonly found in the form of powder in order to maintain its distribution stability and practicality. The spray drying method is a drying method that is mostly used in dry or powder products manufacturing industry. This research aims to investigate the effect of spray drying and to determine proper inlet temperature and maltodextrin concentration on xylitol powder characteristics that are similar to the quality of commercially produced xylitol. Randomized Group Design Method is a data processing method used in this research which consisted of two factors: inlet temperature (160 oC and 180 oC) and maltodextrin concentrations (20%, 25%, and 30%). Based on the result of the research, the inlet temperature significantly affected the water content, solubility, hygroscopic levels and calorie content. Results also showed that maltodextrin concentration had a significant effect on the hygroscopic levels, water content and calorie content. Xylitol powder similar to the commercially produced xylitol was obtained from the inlet temperature of 160 oC and 20% of maltodextrin, with the water content of 5.17%, hygroscopic levels of 8.55%, solubility of 99.346%, calorie content of 2.71 cal/g and xylitol content of 0.034 g/L.Keywords: inlet temperature, maltodextrin, oil palm empty fruit bunch, spray drying, xylitol
Tahapan Proses Produksi Dan Karakterisasi Bioplastik Dari Limbah Tongkol Jagung Sumirat, Riska; Rosalinda, S.; Mardawati, Efri; Nurliasari, Desi; Kastaman, Roni
Jurnal Penelitian Pertanian Terapan Vol 23 No 4 (2023)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v23i4.2691

Abstract

Plastic is the dominant packaging used by the public, so it has the potential to damage the environment. It is necessary to synthesize raw materials for making plastics that are degraded by microorganisms, namely bioplastics. Bioplastics are packaging materials that are synthesized from natural raw materials so that they can be degraded in the environment. The raw material used is corncob because it is abundant and the benefits are not maximized. Research is needed to examine the stages of the production process and the characterization of bioplastics from corncob waste. The purpose of this study was to examine the stages of the production process and the characterization of bioplastics from corncob waste. This study used a laboratory experimental method with descriptive analysis. The production of bioplastics consists of the stages of making cellulose, cellulose acetate, and bioplastics using the solution casting method. The stages of cellulose isolation include hydrolysis, delignification, pulping, and bleaching, which showed an increase in cellulose content from 32.14% to 79.36%. Cellulose is acetylated to become cellulose acetate and has an acetyl content of 11.70 ± 0.40% with a yield of 121.16 ± 0.98%. The production of bioplastics uses a composition of cellulose acetate and chitosan at 50%:50% (w/w) successively. The resulting bioplastic has a thickness of 0.345 ± 0.024 mm, a density of 0.83 ± 0.03 g/cm3, a moisture content of 13.13%, a biodegradation value of 95.19%, a water resistance of 205.57%, and is transparent. The mechanical properties of bioplastics include a tensile strength of 22.3 N/m, an elongation of 21.11%, and a modulus of elasticity of 0.307 Mpa.
Analysis of Cellulose and Cellulose Acetate Production Stages from Oil Palm Empty Fruit Bunch (OPEFB) and Its Application to Bioplastics Hanifah, Aisyah; Mardawati, Efri; Rosalinda, S; Nurliasari, Desy; Kastaman, Roni
Journal of Chemical Process Engineering Vol. 7 No. 1 (2022): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v7i1.805

Abstract

Oil Palm Empty Fruit Bunch (OPEFB) is a type of solid waste from the palm oil processing industry. The components of OPEFB include cellulose, hemicellulose, and lignin. OPEFB has a large cellulose content, so it possesses the potential to be used as a bioplastic material. The purpose of this research was to examine the stages of the bioplastics' production process and its characterization. The cellulose content of OPEFB as raw material and during the isolation process which includes hydrolysis, delignification, pulping, and bleaching are 39.59%, 56.00%, 59.85%, 61.48%, and 68.20%, respectively. Cellulose isolation produces α-cellulose content of 97.87%. The resulting cellulose acetate has an acetyl content of 25.93%. The bioplastics were then characterized to determine the effect of cellulose acetate, starch, chitosan, and glycerol on the physical and mechanical properties of the plastics. The results of the physical properties characterization include biodegradability, water absorption, and density with values of 78.73%, 38.26%, and 1.2% respectively. The results of the mechanical properties characterization include tensile strength, elongation, and modulus of elasticity with values of 0.729 MPa, 4.13%, and 17.5 MPa, respectively. The functional groups in the bioplastics, which are O-H, C-H, C-O, C=O, and N-H, are produced from the mixing process between cellulose acetate, starch, chitosan, and glycerol.
Storage and Packaging Evaluation for Preserving Polyphenols in Black Garlic Nurriyanti, Anggita Halimah; Mardawati, Efri; Nurhasanah, Siti; Nurliasari, Desy
METANA Vol 20, No 2 (2024): Desember 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/metana.v20i2.68113

Abstract

Black garlic (Allium sativum L.) is produced through a controlled thermal aging process, enhancing its phenolic and flavonoid content and increasing antioxidant, anti-inflammatory, and anticancer properties. This study aimed to evaluate the effects of different storage temperatures (30°C, 35°C, and 40°C) and packaging materials (paper core–PC and aluminum foil–AF) on the stability of these bioactive compounds. Black garlic was prepared by aging single clove garlic at 74°C for 12 days using a fermenter. The aged garlic was then packaged in PC and AF and stored under specified conditions. Total phenolic content (TPC) was determined using the Folin-Ciocalteu method, while total flavonoid content (TFC) was measured with the aluminum chloride colorimetric method. Results indicated that higher storage temperatures led to an insignificant reduction in both phenolic and flavonoid contents, with AF packaging providing better retention due to its superior barrier properties (TPC = 2.62–3.51 mg GAE/g and TFC = 1.57–2.09 mg QE/g). At 35°C, PC packaging also showed comparable performance, suggesting its potential as a sustainable alternative (TPC = 2.92 mg GAE/g and TFC = 2.09 g QE/g). The study highlights the importance of optimizing storage conditions and packaging materials to preserve the functional properties of black garlic. These findings provide valuable insights for the food industry in developing effective storage strategies to enhance the benefits of black garlic.
KOMPARASI PENGGUNAAN PUSH NOTIFICATION DENGAN TELESALES UNTUK MENINGKATKAN EFEKTIFITAS KAMPANYE UPSELLING Ardiansah, Irfan; Rafli, Muhammad; Mardawati, Efri; Putri, Selly Harnesa; Rahmah, Devi Maulida
JURNAL PERANGKAT LUNAK Vol 6 No 3 (2024): Jurnal Perangkat Lunak
Publisher : Indragiri Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/jupel.v6i3.3669

Abstract

Penelitian ini bertujuan untuk menganalisis potensi penerapan Push Notification (PN) dan telesales sebagai media komunikasi dalam kampanye upselling perusahaan edutech yang menyediakan paket belajar berlangganan. Analisis dilakukan berdasarkan data pengguna premium PT XYZ, dimana 73,1% pengguna memilih paket belajar kategori rendah karena keraguan ketika membeli paket dengan harga yang tinggi. Dampak dari banyaknya pengguna paket rendah adalah rendahnya pendapatan yang diperoleh perusahaan, sehingga membutuhkan intervensi untuk meningkatkan pendapatan. Penelitian ini menunjukkan bahwa telesales secara signifikan lebih efektif daripada aplikasi PN + Inbox dalam kampanye upselling, dengan tingkat konversi sebesar 0,93% untuk telesales, 0,13% untuk aplikasi PN + Inbox, dan 0% untuk kelompok kontrol. Segmentasi pasar yang efektif dalam kampanye ini melibatkan berbagai kategori paket, dengan tingkat konversi yang berbeda antara telesales dan aplikasi PN + Inbox. Berdasarkan temuan ini, disarankan untuk mengirimkan aplikasi PN + Inbox yang diikuti dengan pendekatan telesales kepada pengguna yang tidak melakukan pembelian setelah menerima aplikasi PN + Inbox, untuk meningkatkan efisiensi dan efektivitas kampanye upselling PT XYZ. Hasil penelitian ini memberikan kontribusi keilmuan yang penting dalam memahami strategi implementasi upselling dalam konteks perusahaan edutech, dengan fokus pada penggunaan PN dan telesales sebagai media komunikasi..
Carboxymethyl holocellulose as alternative carbohydrate-based binder for biomass briquette development Dewantoro, Awaly Ilham; Fauzan, Muklis; Lubis, Muhammad Adly Rahandi; Nurliasari, Desy; Mardawati, Efri
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 4 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.04.2

Abstract

The use of starch as a binder in biomass briquette production raises concerns regarding food security, prompting the need for alternative, non-food-based binders. This study aimed to develop carboxymethyl holocellulose (CMH) derived from oil palm empty fruit bunches (OPEFBs) as a sustainable and effective binder for biomass briquettes made from coconut shells and sawdust. The OPEFBs were converted into CMH through a carboxymethylation process, yielding a product with a carboxyl content of 12.81% and a degree of substitution (DS) of 0.40, indicating effective modification. The synthesized CMH was used as a binder at various concentrations, with citric acid (CA) employed as a crosslinking agent. The total carboxyl content significantly increased with higher CA concentrations, demonstrating improved functional properties. Briquettes produced using CMH exhibited favorable proximate characteristics, such as low moisture content, high fixed carbon, and enhanced calorific value, particularly for coconut shell-based briquettes. The findings suggest that CMH can serve as an alternative to starch, providing sustainable and environmentally friendly solutions for biomass briquette production. Future studies should focus on optimizing the synthesis process and exploring CMHs’ performance in diverse biomass formulations.
Formulation of Black Garlic Tea with The Addition of Ginger (Zingiber officinale), Rosella (Hibiscus sabdariffa L), and Packaging Design Putriana, Norisca Aliza; Mardawati, Efri; Rizki Sendi, Cahyani; Maulida Rahmah, Devi; Pujianto, Totok; Marta, Herlina
Indonesian Journal of Pharmaceutics Vol 6, Issue 1, Jan - April 2024
Publisher : Universitas Padjadjaran (Unpad)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/idjp.v6i1.52667

Abstract

Indonesia is globally recognized for its abundant biodiversity and is considered one of the most biodiverse countries in the world. Over centuries, local communities have explored the benefits of natural ingredients such as garlic to be used as herbal medicine. Although garlic has numerous health benefits, raw consumption is still uncommon due to its strong aroma and taste. To address this issue, black garlic, a derived product from garlic, has been developed to minimize its strong characteristics. Therefore, this research aimed to investigate formulation of black garlic tea with the addition of ginger and rosella flowers in terms of bioactive components, including total phenolic content, total flavonoid content, antioxidant activity, and organoleptic characteristics of taste and aroma. The method used involved the extraction of 12 samples. The results indicated that the highest phenolic content was 16.708 ± 0.0356 mg GAE/g with formulation of black garlic, rosella, and ginger at a ratio of 1 g: 3 g: 2 g. The highest flavonoid content was observed in formulation of black garlic, rosella, and ginger at a ratio of 2 g: 3 g: 2 g, which amounted to 13.560 ± 0.536 mg QE/g. Furthermore, formulation with black garlic, rosella, and ginger at a ratio of 2 g: 3 g: 2 g exhibited the highest antioxidant activity of 63.21%. These results showed that formulation of black garlic tea with the addition of ginger and rosella flowers could enhance the levels of bioactive components, including total phenolic content, total flavonoid content, and antioxidant activity.
Co-Authors Abil Fadila Ade Moetangad Kramadibrata Adiyaksa, Narendra Bagus Agung Tri Mulyono Agus Try Hartono Agustien, Shilvya Dewi Ahmad Fadhlul Kamal Aisyah Hanifah Alifa Putri Anarghya Amaliyah, Putri Rizqi Amelia Hariry Amelia Hariry Anas Bunyamin Andi Trirakhmadi Anggraini, Sulistina Anindya Rahmana Fitri Anting Wulandari Anting Wulandari Anting Wulandari Arie Hardian Arina Sabila Nurhidayat Asri Widyasanti Asri Widyasanti Atiek Rostika Noviyanti Awaly Ilham Dewantoro Bambang Nurhadi Budi Mandra Harahap Budi Mandra Harahap Dara Nadira Daulay Darmawan, Ridho Dedy Prijatna Desy Nurliasari Desy Nurliasari Desy Nurliasari Desy Nurliasari Suparno Dewantoro, Awaly Ilham Diah Meilany Dwi Purnomo Dwi Wahyuda Wira Dwi Wahyudha Wira Edy Suryadi Een Sukarminah Efatmi, Fajri Eki Dwiyan Saputra Eko Heri Purwanto Eko Heri Purwanto Elazmanawati Lembong Elni Hazar Indriantini Emanuela Rae Alodia Emilda Ayu Febrianti Endah Wulandari Endah Wulandari Fadhlurrahmah, Jauhar faizal syahmurman Fajri Efatmi Fathia Salsabila Emmaputri Fauzan, Muklis Fitry Filianty Ghina Haura Tsamarah Hana Nur Fitriana Handarto Hanifah, Aisyah Hanni Listia Furi Harahap, Budi Mandra Hariry, Amelia Haryono Haryono Hendri Hermawan Adinugraha Herlina Marta Hilda Ayu Aulia Imas Siti Setasih Imas Siti Setiasih In-In Hanidah Indah Mayangsari Putri Setiawan Indah Mega Kartini Insy Alimatun Hasanah Irfan Ardiansah Ismiatun Ismiatun Januardi Kasbawati Kasbawati Lubis, Muhammad Adly Rahandi M. Ade Moetangad Kramadibrata M.T.A.P. Kresnowati Maqsudi, Shobir Muntahal Marleen Herudiyanto Maulid, Muhammad Rifqi Maulida Rahmah, Devi Ma’amor, Azman Meilanny Budi Santoso Mimin Muhaemin Mochamad Djali Mohammad Djali Muhammad Saukat Mulyono, Agung Tri Munajat Munajat Nadya Maharani Nanang Masruchin Nanang Masruchin Nandi Sukri Natasha Putri Siahaan Norisca Aliza Putriana Norisca Aliza Putriana Norisca Aliza Putriana, Norisca Aliza Nurliasari, Desi Nurliasari, Desy Nurlilasari, Puspita Nurriyanti, Anggita Halimah Nurul Afifah Octaviana Nofiarno Putri Okta Paulia Panguji Raja Sinurat Pareira Prawiranegara, Boy Macklin Puji Lestari Puntigavere Dante R. Sheila Kusumawardhani Rafli, Muhammad Rahadatul 'Aisy Rahmawati, Rahmi Ratih Siswanina Putri Rifaldy, Dhifal Dui Riska Surya Ningrum Rizika Wulandari Rizki Sendi, Cahyani Robi Andoyo Roby Andoyo Roni kastaman Roni Kastaman Rosalinda, s S. Rosalinda S. Rosalinda, S. Saefudin, Saefudin Samsul Huda Samsul Huda Santoso, Meilanny Budi Sarifah Nurjanah Sarinarulita Rosalinda Selly Harnesa Putri Setasih, Imas Siti Setiadi, Tjandra Shidqi Syauqi Silvia Oktavia Nur Yudiastuti Silvia Yudiastuti Siti Nurhasanah Sri Suhartini, PhD Sumanti Debby Moody Sumirat, Riska Surya Martha Pratiwi Tensiska, Tensiska Tita Rialita Totok Herwanto Totok Pujianto Tri Yuliana Wahyu Daradjat Yana Cahyana Yazid Bindar Yazid Bindar Yoga Windu Wardhana Yunita Hasnah Devina