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All Journal Biopropal Industri Padjadjaran Journal of Dentistry DE LEGA LATA: Jurnal Ilmu Hukum Marine Research in Indonesia Jurnal ARTI : Aplikasi Rancangan Teknik Industri Jurnal Ekonomika Dan Bisnis Jurnal Sehat Indonesia (JUSINDO) Jurnal Indonesia Sosial Teknologi Jurnal Teknik Kimia dan Lingkungan Journal of International Surgery and Clinical Medicine PESARE: Science and Engineering Service Journal JURNAL REKAYASA KIMIA & LINGKUNGAN
Fachrul Razi
Syiah Kuala University
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary

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Karakterisasi Adsorben dari Kulit Manggis dan Kinerjanya pada Adsorpsi Logam Pb(II) dan Cr(VI) - (Adsorbent Characterization from Mangosteen Peel and Its Adsorption Performance on Pb(II) and Cr(VI)) Haura, Ulfa; Razi, Fachrul; Meilina, Hesti
Biopropal Industri Vol 8, No 1 (2017)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.374 KB)

Abstract

The usage of biomass waste-based adsorbent for the adsorption of hazardous metal in wastewater is not only reducing waste but also lowering adsorbent price. This research aims to study the characteristics of adsorbent from mangosteen peel (Garcinia Mangostana L.) and activated charcoal from mangosteen peel, also to compare the adsorption performance on metal ion Pb(II) and Cr(VI). Synthetic wastewater used from a solution of Pb(NO3)2 and K2Cr2O7 with variations in initial concentration of 20, 40, 80, 100 and 200 mg/L. Adsorption performed at pH 5, ratio of adsorbent and waste solution 1/200 (w/v), 60 rpm, 0.5 gs nano-sized adsorbent. Characterization using SEM, FTIR and SEM-EDS showed that both adsorbents characteristics met the requirements of SNI 06-3730-1995. The highest adsorption capacity of activated carbon to adsorb Pb(II) and Cr(VI) were 38.543 mg/g and 36.838 mg/g while biosorbent adsorb Pb(II) and Cr(VI) respectively 3.98 mg/g and 36.12 mg/g.Keywords: adsorption, biosorbent, Cr(VI), mangosteen peel, Pb(II)ABSTRAKPenggunaan adsorben berbasis limbah biomassa untuk adsorpsi kandungan logam berbahaya dari limbah cair industri selain dapat mengurangi limbah juga dapat menekan harga jual adsorben. Penelitian ini bertujuan untuk mempelajari karakteristik adsorben yang terbuat dari limbah kulit manggis (Garcinia mangostana L.) dan arang aktif dari limbah kulit manggis serta membandingkan kinerja kedua jenis adsorben tersebut pada proses adsorpsi ion logam Pb(II) dan Cr(VI). Limbah sintetis yang digunakan berupa ion dari Pb(II) dan Cr(VI) dari larutan Pb(NO3)2 dan K2Cr2O7 dengan variasi konsentrasi awal 20, 40, 80, 100 dan 200 mg/L. Proses adsorpsi dilakukan pada pH 5, rasio perbandingan berat adsorben dan volume larutan limbah 1:200, kecepatan pengadukan 60 rpm, adsorben berukuran nano dengan berat adsorben 0,5 g. Masing-masing adsorben dikarakterisasi menggunakan SEM untuk mengetahui sturktur morfologi, FTIR untuk mengetahui gugus fungsi dan SEM-EDS untuk mengetahui komponen kimia yang terkandung dalam adsorben tersebut. Hasil penelitian menunjukkan bahwa karakteristik kedua jenis adsorben memenuhi syarat mutu sesuai SNI 06-3730-1995. Kapasitas adsorpsi tertinggi dari karbon aktif untuk menyerap Pb(II) dan Cr(VI) masing-masing 38,543 mg/g dan 36,838 mg/g, sedangkan kapasitas adsorpsi tertinggi biosorben untuk menyerap Pb(II) dan Cr(VI) masing-masing 36,98 mg/g dan 36,12 mg/g.Kata kunci: adsorpsi, biosorben, Cr(VI), kulit manggis, Pb(II)
Karakteristik Membran Asimetris Polietersufone (PES) dengan Pelarut Dimetil Formamide dan N-Metil-2-Pyrolidone - (Characteristic of Poliethersulfone (PES) Asymmetric Membrane with Dimethyl Formamide and N-Methyl Pyrolidone as Solvent) Mulyati, Sri; Razi, Fachrul; Zuhra, Zuhra
Biopropal Industri Vol 8, No 1 (2017)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Membrane that is generally used for separation process could be made using phase inversion technique. This research aims to create polyethersulfone (PES) asymmetric membranes via phase inversion technique using solvent and Trans Membrane Pressure (TMP) as variable. SEM analysis indicated that membranes had asymmetric structure that consits of two layers which denser skin layer on the top surface and the porous support on the bottom. PES/DMF membrane showed larger pore structure than PES/NMP. The permeability coefficients of both membranes were in the ultrafiltration range. The coefficient permeability (Lp) of PES/DMF membrane was 35.769 L/m2.hour, much greater compared to PES/NMP membrane which was 15.364 L/m2.hour.bar. Molecular Weight Cut-Off (MWCO) of PES/DMF membrane was 177 Kda, meanwhile PES/NMP was 186 Kda. Performances of the membranes were evaluated  using dextrane as feed solution. PES/DMF membrane resulted in an higher flux and lower rejection than PES/NMP.Keywords: asymmetric membrane, membrane performance, Molecular Weight Cut-Off (MWCO), morphology, permeability ABSTRAKMembran yang umumnya digunakan untuk proses pemisahan dapat dibuat menggunakan teknik inversi fasa. Penelitian ini bertujuan untuk mengetahui karakteristik membran asimetris polietersulfone (PES) yang dibuat menggunakan teknik inversi fasa dengan variabel jenis pelarut dan Trans Membrane Pressure (TMP). Hasil analisis Scanning Electron Microscopy (SEM) terhadap morfologi membran membuktikan bahwa membran yang dihasilkan merupakan membran asimetris yang terdiri dari dua lapisan yaitu bagian atas merupakan lapisan tipis dan lapisan bawah adalah lapisan berpori. Membran PES/DMF memiliki struktur pori yang lebih besar dibandingkan membran PES/NMP. Koefisien permeabilitas kedua membran yang dihasilkan berada dalam jangkauan ultrafiltrasi. Koefisien permeabilitas (Lp) membran PES/DMF sebesar 35,769 L/m2.jam, nilai ini jauh lebih besar dibandingkan PES/NMP yaitu 15,364 L/m2.jam.bar. Molecular Weight Cut-Off (MWCO) dari membran PES/DMF yaitu 177 Kda sedangkan membran PES/NMP sebesar 186 Kda. Kinerja membran PES/DMF terhadap pemisahan larutan dekstran memberikan nilai fluks yang lebih tinggi daripada membran PES/NMP sedangkan rejeksi yang dihasilkan lebih rendah. Fluks tertinggi diperoleh pada TMP 2 bar sebesar 11,4 L/m2.jam untuk membran PES/DMF dan 10,2 L/m2.jam untuk membran PES/NMP.Kata kunci:          kinerja membran, membran asimetris, Molecular Weight Cut-Off (MWCO), morfologi, permeabilitas
PHYTOPLANKTON SPECIES COMPOSITION IN SEAWATER AND TISSUE OF GREEN MUSSELS (PERNA VIRIDIS), AT KALI BARU-CILINCING, NORTH JAKARTA Widiarti, Riani; Yasman, -; Mulyani, -; Kurnia, Nita; Razi, Fachrul
Marine Research in Indonesia Vol 38, No 2 (2013)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1607.531 KB) | DOI: 10.14203/mri.v38i2.57

Abstract

Species composition and abundances of phytoplankton in the shellfish farming area in Jakarta Bay, Kali Baru-Cilincing, were examined in order to identify harmful algae species. Phytoplankton contained in the shellfish was also observed to detect the presence of toxic species, as well as the phycotoxin contained in  visceral of green mussel (Perna viridis) collected from the farming area using brine shrimp lethality test (BSLT). We detected the presence of  Alexandrium spp. (PSP causing species), Dinophysis caudata, D. miles and D. rotundata (DSP causing species), and Pseudo-nitzschia spp. (ASP causing species). The last mentioned species was also detected in thestomach content of green mussel. The toxicity of green mussels tested was recorded LC 50 ≤ 1,000 ppm and indicatedthe presence of an active compound in the green mussel viscera. Meanwhile, preliminary PSP test of shellfish did not showed any toxin.
PHYTOPLANKTON SPECIES COMPOSITION IN SEAWATER AND TISSUE OF GREEN MUSSELS (PERNA VIRIDIS), AT KALI BARU-CILINCING, NORTH JAKARTA Widiarti, Riani; Yasman, -; Mulyani, -; Kurnia, Nita; Razi, Fachrul
Marine Research in Indonesia Vol 38 No 2 (2013)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1607.531 KB) | DOI: 10.14203/mri.v38i2.57

Abstract

Species composition and abundances of phytoplankton in the shellfish farming area in Jakarta Bay, Kali Baru-Cilincing, were examined in order to identify harmful algae species. Phytoplankton contained in the shellfish was also observed to detect the presence of toxic species, as well as the phycotoxin contained in  visceral of green mussel (Perna viridis) collected from the farming area using brine shrimp lethality test (BSLT). We detected the presence of  Alexandrium spp. (PSP causing species), Dinophysis caudata, D. miles and D. rotundata (DSP causing species), and Pseudo-nitzschia spp. (ASP causing species). The last mentioned species was also detected in thestomach content of green mussel. The toxicity of green mussels tested was recorded LC 50 � 1,000 ppm and indicatedthe presence of an active compound in the green mussel viscera. Meanwhile, preliminary PSP test of shellfish did not showed any toxin.
Breastfeeding significant correlated with decreasing of breast cancer risk Muharram, Girry Gustianugraha; Darmi, Noer Faisal; Razi, Fachrul
Journal of International Surgery and Clinical Medicine Vol. 3 No. 2 (2023): (Available online: December 2023)
Publisher : Surgical Residency Program Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51559/jiscm.v3i2.45

Abstract

Background: Extensive literature has established a strong correlation between breastfeeding and a decreased susceptibility to breast cancer. The objective of this study was to examine the breastfeeding status of moms diagnosed with breast cancer. Methods: This study employs a descriptive-analytical approach with a cross-sectional design. The study comprised adult female patients (aged 20-60) who were diagnosed with Breast Cancer, irrespective of the specific kind of cancer confirmed by anatomical pathological investigation. Only non-smokers were considered for analysis. The study excluded patients who had a history of malignancy and those with a family history of cancer. A bivariate analysis was performed to evaluate the study hypothesis. The analysis was conducted utilizing the Chi-Square and unpaired T-test statistical methods using SPSS software. A p-value less than 0.05 is deemed statistically significant. Result: This research encompassed a total of 45 individuals diagnosed with breast cancer. The majority of individuals diagnosed with breast cancer (55.6% of the total) did not engage in exclusive breastfeeding. Similarly, individuals without a breast cancer diagnosis also tended to refrain from exclusive nursing (24.4%). The association between the two variables is statistically significant, as indicated by a p-value of 0.000. The average length of nursing in individuals diagnosed with breast cancer was 2.04 ± 1.81, but in those without breast cancer, it was 10.10 ± 9.01. The statistical tests indicate a substantial association between the two variables, as evidenced by a p-value of 0.000. Conclusion: A notable correlation exists between breastfeeding and a diminished likelihood of developing breast cancer.
Legality Of Shopee Paylater Payments For Shopee Platform E-Commerce Transactions In Conventional Law Sulubara, Seri Mughni; Lubis, Hidayati Purnama; Simbolon, Nanci Yosepin; Razi, Fachrul
DE LEGA LATA: JURNAL ILMU HUKUM Vol 9, No 2 (2024): July-December
Publisher : Universitas Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/dll.v9i2.20414

Abstract

Shopee is an application engaged in online sales or e-commerce that can be accessed easily using a smartphone. Shopee paylater is a buy now pay later method provided by the Shopee platform that allows consumers to pay for a transaction at a later date, either in one payment or in installments. The research method used is qualitative descriptive research with a normative juridical approach. The legal review of shopee paylater transactions on the shopee application as internet-based technology financing for the convenience of remote electronic transactions is contained in Articles 1313, 1320, 1338 and Article 1365 of the Civil Code. To protect the interests of consumers who use shopee paylater in the shopee application, it is regulated in Articles 4, 6, 7 and Article 62 of Law Number: 8 of 1999 concerning Consumer Protection. In the Electronic and Transaction Information Law, the protection of consumer interests of shopee paylater users is regulated in Article 18 paragraph 1 of Law Number: 19 of 2016 concerning Amendments to Law Number: 11 of 2008 concerning Electronic Information and Transactions
Perencanaan Strategi Pemasaran Berdasarkan Customer Value Untuk Meningkatkan Penjualan Koperasi Pengembangan Usaha Bersama Dengan Menggunakan Metode SWOT RAZI, FACHRUL
Jurnal ARTI (Aplikasi Rancangan Teknik Industri) Vol. 20 No. 1 (2025): Jurnal ARTI: Aplikasi Rancangan Teknik Industri
Publisher : Sekolah Tinggi Teknologi Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52072/arti.v1i20.1105

Abstract

Perkembangan ekonomi yang pesat di Indonesia mendorong persaingan yang semakin ketat di antara perusahaan, terutama dalam bidang pemasaran produk. Penelitian ini bertujuan untuk merumuskan strategi pemasaran yang efektif bagi Koperasi Pengembangan Usaha Bersama, yang bergerak di bidang pengolahan biji kemiri, dengan menggunakan metode analisis SWOT. Data penjualan menunjukkan ketidakstabilan, dengan pendapatan yang tidak mencapai target. Metode deskriptif diterapkan untuk mengidentifikasi kekuatan, kelemahan, peluang, dan ancaman yang dihadapi koperasi. Hasil analisis menunjukkan bahwa koperasi memiliki peluang untuk meningkatkan penjualannya dengan strategi yang fokus pada kualitas produk, promosi yang intensif, dan kerjasama yang baik dalam produksi. Strategi SO, WO, ST, dan WT dirumuskan untuk memaksimalkan potensi koperasi dalam menghadapi persaingan. Penelitian ini menekankan pentingnya penerapan strategi yang agresif untuk meningkatkan volume penjualan dan memperkuat posisi koperasi di pasar. Melalui perbaikan kualitas produk dan pengembangan promosi yang lebih luas, diharapkan koperasi dapat mencapai target penjualannya dan meningkatkan keuntungan secara berkelanjutan.
Expression of fibroblast growth factor-2 after application of the Queen's crepe-myrtle leaf (Lagerstroemia speciosa) and aloe vera extract gel in the wound healing process of hyperglycemic Razi, Fachrul; Hardianto, Andri; Riawan, Lucky; Priosoeryanto, Bambang Pontjo
Padjadjaran Journal of Dentistry Vol 33, No 1 (2021): March 2021
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no1.21276

Abstract

Introduction: Fibroblast Growth Factor-2 (FGF-2) have a role in stimulating the proliferation and migration of various types of cells in the wound healing process. Hyperglycemic conditions can disrupt the wound healing process. Lagerstroemia speciosa are known to have antyphyerglycemic and antioxidant effects. Aloe vera is a plant that has been used for long time in topical treatment of wounds.This study was aimed to analyse the FGF-2 after application of Queen's crepe-myrtle leaf (Lagerstroemia speciosa) and aloe vera extracts gel in the wound healing process of hyperglycemia. Methods: A pure experimental study was conducted with simple random sampling. The sample was 27 experimental animals (CI 95%; power test 80%) of Sprague Dawley rat induced to have a hyperglycemic state using alloxan and had their palate injured. The immunohistochemical examination was performed to assess FGF-2 expression level. Samples were divided into three groups with a simple random sampling technique: nine of the rats received the Lagerstroemia speciosa extract gel application; nine rats received the aloe vera extract gel application on the injured palate; another nine rats in the control group. Examination of the FGF-2 expression level was performed on the third, seventh, and fourteenth observation days. Results: Overall, the control group had a significant difference with the Lagerstroemia speciosa and aloe vera extract gel group (p-value<0.05), however, the Lagerstroemia speciosa group did not have any significant difference with the aloe vera group (0.123>0.05). Conclusion: There was no difference in the amount of FGF-2 expressions on the wound healing process of the injured palatal tissue of Sprague-Dawley rats with hyperglycemic after application of the Lagerstroemia speciosa and aloe vera extract gel.
Breast Cancer Patients at Dr. Zainoel Abidin Hospital Banda Aceh Meildi, Maria; Arifki, Azwar; Razi, Fachrul; Darmi, Noer Faisal; Razi, Khalikul
Jurnal Sehat Indonesia (JUSINDO) Vol. 7 No. 2 (2025): Jurnal Sehat Indonesia (JUSINDO)
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jsi.v7i2.295

Abstract

Breast cancer was the most common cancer-related death in women. Epidemiology reports the incidence to increase related to stage, histopathologic and subtype. Epidemiology reports in Aceh of breast cancer patients treated at Zainoel Abidin Banda Aceh Hospital are still limited. We want to report breast cancer patient profiles in Aceh. This study uses a quantitative descriptive approach by analyzing medical data of breast cancer patients recorded during 2021. The variables analyzed include age, age, location of cancer, histopathology type, grading and subtype of breast cancer performed. In this study, it was found that patients diagnosed with breast cancer were aged 36-50 years with images of 53 patients (37.86%) patients aged over 50 years and 14 (10%) patients aged under 36 years. The most common histopathology types were invasive ductal carcinoma 64%, and invasive lobular carcinoma 36%. Histopathology grading of breast cancer obtained the highest grade with grade III as many as 79 patients (56%). The most common subtype of breast cancer was triple negative. Breast cancer patients were most common at the age of 50 years old, histopathology was invasive ductal carcinoma, and the most common subtype of breast cancer was Triple Negative.
Restaurant Liquid Waste Treatment into Clean Water Using Graded Filter-Ultrafiltration Membrane Polyethersulfone (PES) Method Fadhilah, Intan; Hamdan, Abd Mujahid; Razi, Fachrul
Jurnal Teknik Kimia dan Lingkungan Vol. 7 No. 2 (2023): October 2023
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v7i2.1691

Abstract

Restaurant liquid waste contains elevated pollutant levels and is commonly discharged directly into the environment, leading to adverse impacts on ecosystems and aquatic life. The traditional methods for processing such wastewater often involve extensive land usage and complicated operations, posing challenges for effective treatment. Therefore, there is a need for a more practical technology to manage restaurant liquid waste, and one promising approach is the utilization of membrane technology for wastewater treatment. In this study, the researchers employed a combination process of multilevel filters with downflow flow and PES membrane ultrafiltration to treat the restaurant liquid waste. The multilevel filter comprised several layers of filter media, including silica sand, activated carbon, zeolite, and gravel, with specific thicknesses on a PVC pipe. For the PES membrane, two different concentrations were tested: 15% and 20% PES. To evaluate the efficiency of the treatment process, pollutant parameters such as pH, TSS (Total Suspended Solids), COD (Chemical Oxygen Demand), and turbidity were measured. The results indicated significant pollutant reduction: pH levels could reach 6.9, TSS degradation achieved up to 98.37%, COD degradation up to 88.14%, and turbidity degradation up to 97.03%. Based on the outcomes, the most effective treatment for converting restaurant wastewater into clean water involved the combined use of multilevel filters and a 20% PES membrane ultrafiltration system.
Co-Authors Abd Mujahid Hamdan Andri Hardianto Arifki, Azwar Bambang Pontjo Priosoeryanto Darmi, Noer Faisal Dwi Pratiwi Markus, Dwi Farid Mulana Hesti Meilina Intan Fadhilah, Intan Khairul Khairul, Khairul Kurnia, Nita Kurnia, Nita Lia Mairiza Lubis, Hidayati Purnama Lucky Riawan Meildi, Maria Mughni Sulubara, Seri Muharram, Girry Gustianugraha Mulyani, - Mulyani, - Nanci Yosepin Simbolon Nasrul Arahman Novia Mehra Erfiza Razi, Khalikul Riani Widiarti S D Yuwono Satria, Suffriandy Sofyana Sofyana Sri Mulyati Suriaini, Nanda Tuasikal, Hadi Ulfa Haura Umi Fathanah Yasman, - Yasman, - Zuhra Zuhra