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All Journal Jurnal Ilmu Dasar Jurnal Sains Dasar Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat PROSIDING SEMINAR KIMIA KOVALEN: Jurnal Riset Kimia Jurnal Kimia Mulawarman Science and Technology Indonesia JURNAL ATOMIK Jurnal Sustainable: Jurnal Hasil Penelitian dan Industri Terapan Bisma: Jurnal Bisnis dan Manajemen Spektrum Analisis Kebijakan Pendidikan BISMA (Bisnis dan Manajemen) VALUE: Journal of Business Studies Kubis Jurnal Sains dan Kesehatan
Saleh, Chairul
Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Social Sciences Other

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SYNTHESIS OF ETHYLENEDIAMIDE FROM METHYL ESTER OIL ARABICA COFFEE SEEDS (Coffea arabica. L) WITH ETHYLENEDIAMINE USING NaOCH3 CATALYST BY AMIDATION REACTION Maimunah, Siti; -, Daniel; Saleh, Chairul
JURNAL ATOMIK Vol 5 No 2 (2020)
Publisher : Jurusan Kimia FMIPA UNMUL

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Synthesis of ethylenediamide surfactant from coffee bean oil methyl ester (Coffea arabica. L) through an amidation reaction. The synthesis process that has been carried out includes extraction, esterification and amidation of coffee bean oil content by soxhletation of 15.47% with acid number 3.15 mg KOH/g and ALB 1.58%. Coffee bean oil is converted to methyl ester through esterification and acid number is 1.50 mg KOH/g ALB level drops to 0.75% saponification number of 57.11 mg KOH / g. The most dominant composition of the coffee bean oil methyl ester based on GC-MS analysis was 48.0% methyl oleate. The FT-IR spectrum of methyl ester gives a specific absorption peak C = O ester at wave number 1745 cm-1. Methyl esters are converted to ethylenediamide through an amidation process. The resulting ethylenediamide has an acid number of 9.1 mg KOH/g and a saponification number of 3.39 mg KOH/g. The FT-IR spectrum provides specific absorption peaks for groups C=O at wave number 1639 cm1 and C-N at wave number 3302 cm-1. Ethylenediamide HLB values ​​are practically 12.5495 which includes oil in water (O/W) emulsifier surfactants.
PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITY TEST USING DPPH METHOD OF KLUWIH SEED (Artocarpus camansi Blanco) Sulistiawati, Iqlimah; Saleh, Chairul; -, Erwin
JURNAL ATOMIK Vol 6 No 1 (2021)
Publisher : Jurusan Kimia FMIPA UNMUL

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Phytochemical screening and antioxidant activity test using DPPH method of Kluwih seed (Artocarpus camansi Blanco) have been done. Maceration of Kluwih seed was carried out using methanol. The phytochemical test showed A. camansi contains secondary metabolites including alkaloids, phenolics, flavonoids and steroids. Based on the result of the antioxidant test using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method, the result exhibited that the crude extract had an IC50 value of 63.63 ppm.
UJI FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN (METODE DPPH) DARI DAUN RAMBAI (Baccaurea motleyana Mull. Arg.) Ami, Suyatmi; Saleh, Chairul; Pratiwi, Djihan Ryn
JURNAL ATOMIK Vol 4 No 2 (2019)
Publisher : Jurusan Kimia FMIPA UNMUL

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The research about phytochemical test and antioxidant activity test on rambai leaves extract (Baccaurea motleyana Müll.Arg.) using DPPH radical immersion method had been done. This research aims to know kinds of secondary metabolite compounds in rambai leaves extract and level of antioxidant activity in rambai leaf. The result of this research showed that the secondary metabolite in rambai leaf were alkaloids, phenolics, flavonoids, saponins, steroids and triterpenoids. IC50 values obtained in each crude extract, n-hexane fraction, ethyl acetate fraction and residual ethanol fraction were 13.27 ppm, 22.81 ppm, 19.22 ppm and 13.33 ppm respectively. The highest level of antioxidant activity was in crude extracts.
PENGHAMBATAN AKTIVITAS α-GLUKOSIDASE DARI EKSTRAK METANOL BUNGA BUGENVIL (Bougainvillea glabra Choisy) Puspitasari, Intan Dessy; Saleh, Chairul; Hairani, Rita; Ruga, Ritbey
JURNAL ATOMIK Vol 9 No 1 (2024)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v9i1.1276

Abstract

The test of Phytochemical screening and antidiabetic activity of methanol extract of bugenvil (Bougainvillea glabra Choisy) flower against α-glucosidase inhibition have been conducted. This study aims to determine the content of secondary metabolite compounds and the effectiveness of the methanol extract of bugenvil flower against α-glucosidase activity. Phytochemical test showed that the methanol extract contained secondary metabolite compounds namely alkaloids, flavonoids, steroids, phenolics and saponins. By 50 µg/mL, the methanol extract of bugenvil flower can inhibit α-glucosidase activity with a percent inhibition value of 79.42% while acarbose as a positive control in this study exhibited antidiabetic activity against α-glucosidase of 99.30% at a concentration of 0.00006 µg/mL.
UJI FITOKIMIA DAN ANTIBAKTERI EKSTRAK ETANOL BIJI MAHONI (Swietenia mahagoni (L.) Jacq) Arwidhiah, Nanda; Saleh, Chairul; Astuti, Winni
JURNAL ATOMIK Vol 6 No 2 (2021)
Publisher : Jurusan Kimia FMIPA UNMUL

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Phytochemical test and antibacterial activity of ethanol extract of Mahoni seed (Swietenia mahagoni (L.) Jacq) have been done. The extraction of Mahoni seed samples was carried out by the maceration method using ethanol as a solvent. An antibacterial activity test was carried out using the agar diffusion method. Phytochemical tests results show that ethanol extract of Mahoni seeds has secondary metabolites of alkaloid, triterpenoid, and phenolic compounds. The antibacterial activity test results obtained MIC values for Streptococcus mutans bacteria were 1.25-2.5% and for Salmonella typhi bacteria at 0.625-1.25%. Ethanol extract of Mahoni seeds has broad-spectrum antibacterial activity.
Pengaruh Lingkungan Kerja Fisik, Disiplin Kerja, dan Komunikasi terhadap Kinerja Pegawai DPMD Kabupaten Lumajang Puspita, Leonita Dwi; Susanto, Arnis Budi; Prajitiasari, Ema Desia; Saleh, Chairul; Priyanto, Fajar Wahyu; Titisari, Purnamie; Wiryaningtyas, Dwi Perwitasari; Susetyarsi, Theresia
VALUE: Journal of Business Studies Vol. 3 No. 1 (2024): VALUE: Journal of Business Studies
Publisher : Study Program of Management Faculty of Economics and Business University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/value.v3i1.46318

Abstract

Abstract This research aims to analyze the influence of the physical work environment, work discipline and communication on employee performance at the Lumajang Regency Community and Village Empowerment Service. This research uses quantitative methods with survey methods and data collection carried out through questionnaires to employees of the Community and Village Empowerment Service. The number of employees sampled for this research was 55 people. The results of data analysis using multiple linear regression show that the physical work environment has a significant positive influence on employee performance. Work discipline also has a positive and significant influence on employee performance. Apart from that, communication has also been proven to have a positive and significant effect on employee performance.
Investigations on The Mechanism of Artificial Photosynthesis of Ca-Pc-PDI and Dendrimer Molecule by DFT Calculations Gunawan, Rahmat; Hammamiyah, Ulinnuha; Fadillah, Fahmi; Saleh, Chairul; Sitorus, Saibun
Jurnal ILMU DASAR Vol 19 No 2 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (636.376 KB) | DOI: 10.19184/jid.v19i2.7142

Abstract

Artificial photosynthesis modelling of Ca-Pc-PDI complex Ca Phthalocyanine Perylenediimide), and dendrimer molecule using Density of Functional Theory (DFT) Method has been studied to showed the energy efficiency of these compounds in terms of electron transfer in photosynthesis. The Analysis of Ca-Pc-PDI and dendrimer compound and also chlorophyl has been done in all computations using the GAMESS-US software. The computations result in this research showed that the large wavelength complex compounds of Ca-Pc-PDI obtained was 138.3299 nm and energy efficiency obtained was 0.89 eV. The data analysis states that the absorption of harvest light energy of complex compounds Ca-Pc-PDI lies in the far UV spectrum. The other side, the polyphenylene dendrimer structure molecular orbital analyses it was found that the dendrimer was capable of electron transfers as indicated by the existence of HOMO and LUMO and result comparisons with chlorophyll. UV wavelengths of the polyethylene dendrimer and chlorophyll, respectively, suggesting that the polyphenylene dendrimer is capable of substituting chlorophyll in artificial photosyntheses. We can states from the result that these compound ability to be applied in the modeling of artificial photosynthesis as a material of energy absorption that mimics the workings of chlorophyll in terms of electron transfer in natural photosynthesis process. Keywords: Artificial photosynthesis modelling, Ca-Phthalocyanine-Perylenediimide complex, and dendrimer molecule
Aktivitas Ekstrak Metanol Daun Alang-Alang (Imperata cylindrica (L.) P. Beauv) sebagai Antinflamasi: Activity of Alang-Alang (Imperata cylindrica (L.) P. Beauv) Leaves Methanol Extract as Anti-inflammatory Chairul Saleh; Marem Sestiani; Erwin Erwin
Jurnal Sains dan Kesehatan Vol. 5 No. 3 (2023): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v5i3.1649

Abstract

An anti-inflammatory activity test of methanol extract of alang-alang leaves (Imperata cylindrica (L.) P. Beauv) on protein denaturation inhibition in vitro was carried out. The purpose of this study was to determine the content of secondary metabolites and the anti-inflammatory activity of the methanol extract of alang-alang leaves. The method used is a qualitative test method based on staining to determine the content of secondary metabolites and an in vitro method using a protein in the form of Bovine serum albumin (BSA) which is induced by heat to determine the anti-inflammatory activity of methanol extract of Imperata leaves and diclofenac sodium as a positive control. results of the phytochemical screening showed that the methanol extract of Imperata leaves contained flavonoids, phenolics and steroids. Activity test of alang-alang leaf methanol extract in IC50 was 125.937 ppm. The methanol extract of alang-alang leaves has potential as an anti-inflammatory. Keywords: Imperata cylindrica (L.) P. Beauv, Alang-alang, Anti-inflammatory, In Vitro AbstrakUji aktivitas antiinflamasi ekstrak metanol daun alang-alang (Imperata cylindrica (L.) P. Beauv) terhadap penghambatan denturasi protein secara in vitro telah dilakukan. Tujuan penelitian ini adalah untuk menentukan kandungan senyawa metabolit sekunder dan aktivitas antiinflamasi ekstrak metanol daun alang-alang. Metode yang digunakan ialah metode uji kualitatif berdasarkan perwarnaan untuk menentukan kandungan metabolit sekunder dan metode in vitro menggunakan protein berupa Bovine serum albumin (BSA) yang diinduksi oleh panas untuk menentukan aktivitas antiinflamasi ekstrak metanol daun Alang-alang dan natrium diklofenak sebagai control positif. Hasil skrining fitokimia menunjukkan ekstrak metanol daun alang-alang mengandung flavonoid, fenolik dan steroid. Uji aktivitas ekstrak metanol daun alang-alang dalam IC50 adalah 125,937 ppm. Ekstrak metanol daun alang-alang memiliki potensi sebagai antiinflamasi. Kata Kunci: Imperata cylindrica (L.) P. Beauv, Alang-alang, Antiinflamasi, In Vitro
POTENSI AKTIVITAS ANTIOKSIDAN EKSTRAK METANOL DAUN SINGKIL(Premna corymbosa Roxb & Willd.) Dewi, Camelia Eugenia; Saleh, Chairul; Ryn Pratiwi, Djihan; Magdaleni, Agustina Rahayu; Daniel, Daniel
JURNAL ATOMIK Vol 9 No 2 (2024)
Publisher : Jurusan Kimia FMIPA UNMUL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ja.v9i2.1431

Abstract

Antioxidant and sunscreen activity tests have been carried out on the methanol extract of singkil leaves(Premna corymbosa Roxb & Willd.) in vitro with the 1.1-diphenyl-2-picrylhydrazil (DPPH) radicalscavenging method using a spectrophotometer UV-Vis. This research aims to determine the antioxidantof singkil leaf. Based on the results of the phytochemical test, it is known that the methanol extract ofsingkil leaves contains alkaloids, flavonoids, phenolics, quinone and steroids. The IC50 value ofmethanol extract of singkil leaves, ia 50.77; in the moderate to strong antioxidant category.
SKRINING FITOKIMIA DAN POTENSI ANTIBAKTERI EKSTRAK ETANOL DAUN SIRIH HUTAN (Piper aduncum L.) TERHADAP BAKTERI Escherichia coli DAN Staphylococcus aureus : A MINI REVIEW Sanjaya, I Made Duwi; Purba, Ritson; Saleh, Chairul
PROSIDING SEMINAR KIMIA Vol 3 No 1 (2024): Prosiding SNK 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Sirih hutan is a plant that belongs to the genus Piper and is found in many tropical areas, especially in tropical Asia. Sirih contains essential oils composed of betlephenol, cavikol, sesquiterpenes, hydroxycavikol, cavibetol, estragol, eugenol, and carvakrol which against Gram positive bacteria and Gram negative bacteria. Antibacterial activity test of ethanol extract of sirih hutan (Piper aduncum L.) has been conducted. This study aims to determine secondary metabolite compounds contained in sirih hutan leaves and potential as antibacterials, determined using the disc diffusion method. From the results of phytochemical tests, secondary metabolite compounds contained in sirih hutan are obtained in the form of alkaloids, steroids, phenolics, flavonoids, tannins, quinones and saponins. The results of the literature showed that sirih hutan leaf ethanol extract had antibacterial activity with the highest concentration used at 60% and the diameter of the inhibitory zone formed in Escherichia coli and Staphylococcus aureus was 14 mm. Keywords : Antibacterial, Forest Betel, Phytochemical Screening
Co-Authors Agung Prasetyo Agus Priono Ajeng Kartini Akbar, Fath Ali Alimuddin - Alimuddin Alimuddin Alpina Nora Kaban Ami, Suyatmi Ana Arum Sari Ana Arum Sari, Ana Arum Ardiansyah - Ardiansyah - Arifah, Churniati Nur Arwidhiah, Nanda Ary Rizki Darmawi Ary Rizki Darmawi, Ary Rizki Aulia Husna Rabbani Azhar Seli Apriani Azhar Seli Apriani, Azhar Seli Barikah, Kuni Z. Bastara, Dimas B. Bohari Yusuf Bonita Tahir Daniel Daniel - Daniel - Daniel -, Daniel Daniel Daniel Daniel Daniel Daniel Daniel Daniel Tarigan Deni Karisnawati Dessy Karlina Desy Ridho Rahayu Dewi, Camelia Eugenia Djihan Ryn Pratiwi, Djihan Ryn Dwi Fitria Sari Dwi Perwitasari Wiryaningtyas, Dwi Perwitasari Eci Endang Sinulingga Eko Haryanto Eko Haryanto Elean, Samuel Elok Sri Utami Ema Desia Prajitiasari Erwin - Erwin - Erwin E Erwin Erwin Erwin Erwin Erwin Erwin Erwin Erwin Eva Marliana, Eva Fadillah, Fahmi Farhany, Farhany Farida Amir Farida Amir, Farida Fauziah, Nadiya Ayu Hammamiyah, Ulinnuha Hamsiana - Hevin Muttaqin Husnul Chatimah Indra Masmur Izkia Mawaddah Jaya, Edi Novian Juwita, Retno Karolina Sinukaban Ketut Indraningrat KHOIRUN NISAK Krishnabudi, N. G Kusumaningrum, Indah Yulia Kusumawardani, Niken Lembang, Darmita Tiku Lilik Farida Lutfiana Devi Kurnia M.Riza Agus Pramana Magdaleni Agustina Rahayu Magdaleni, Agustina R. Magdaleni, Agustina Rahayu Marem Sestiani Marsella, Virna Rindra Masmur, Hestina Medi Hendra, Medi Mira Wahyuni Mira Wahyuni, Mira Muhammad Rivai Mujahidin1, Muhamad Mustafidah - Mustafidah -, Mustafidah Mutma Inna Nadhirah - Natalia, Princessa Noor Hindryawati, Noor Nugraheni, Dyah Ayu Nur Aina Nur Aini Haryati Nur Hidayah Nuranda, Apri Nyoman Gede Krishnabudi Oman, Aries Panannangan, Josua K. Pangaribuan, Fransiscus X. Rico Pindan, Neli Peni Prabowo, Rachmat Prabowo, Rachmat Udhi Prasetyo, Agung Pratiwi, Ricka Indria Precelia, Sari Clara Priyanto, Fajar Wahyu Purnamie Titisari Purwanti, Gettik Andri Puspita, Leonita Dwi Puspitasari, Intan Dessy Rachman, Ferry Aditya Rahmat Gunawan RAHMAT GUNAWAN Ramadhan, Aulia Ravensca, Irene Rindawati, Novi Rita Hairani Ritbey Ruga Ritson Purba, Ritson Rochman, Mayasari Azhari Rohmat Hidayat Rohmat Hidayat Rudi Kartika, Rudi Ruga, Ritbey Ryn Pratiwi, Djihan Saibun Sitorus Sandra, Putri Ayu Sanjaya, I Made Duwi Septi Roro Liniawati Shadrina, Alyani Nur Simatupang, Eliene Br. Siti Maimunah Sitompul, Citra Uli Soma, Yolanda V. A Subagyono, RR Dirgarini Julia Nurlianti Subur P Pasaribu Sulistiawati, Iqlimah Sulistiyawati, Rizki Ramadhani Sumarni, Feni Sunardi Sunardi Susanto, Arnis Budi Syafriyanti, Yuly T, Nurnaningsi Theresia Susetyarsi Tri Novianti Tria Annisa Rizky Tria Apriliana, Tria Ulfa Mutia Ulfa Mutia, Ulfa Ulfa, Yulyanti Sartika Utami, Diandra Weningtyas Wahyu Pratama Wajdie, Farid Winni Astuti Winni Astuti, Winni Yuli Yana