Article Per Year (5 Year)
p-Index From 2021 - 2026
3.312
P-Index
This Author published in this journals
All Journal PROSIDING SEMINAR KIMIA REPOSITORY KIMIA Jurnal Kimia Mulawarman ANNALES BOGORIENSES JURNAL ATOMIK Jurnal Riset Teknologi Industri Jurnal Riset Kefarmasian Indonesia Annales Bogorienses
Rudi Kartika, Rudi
Jurusan Kimia Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health

Published : 88 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 35 Documents
Search
Journal : PROSIDING SEMINAR KIMIA

 1   2   3   4 
Uji Aktivitas Antibakteri Hasil Fermentasi Bakteri Endofit Umbi Talas (Colocasia esculenta L.) terhadap Bakteri: MINI REVIEW Azka, Andi Aulia Urrahman; Kartika, Rudi; Jofri, Dirga Hosea Seventeen; Rizkirullah, Muhammad Adhitya; Kurniawan, Andi; Aswat, Muhammad Raihan
PROSIDING SEMINAR KIMIA Vol 3 No 2 (2025): Prosiding SNKT 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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

Abstract

Antibacterial agents are substances used to eliminate microorganisms, especially those harmful to humans. These antibacterial compounds can be directly extracted from plants, where the extracts contain secondary metabolite compounds with antibacterial activity. The antibacterial testing is conducted on gram-positive bacteria, such as Propionibacterium, Staphylococcus, and others. The research method employed is a literature review of 10 national and international articles published within the last 10 years. The cited articles focus on studies of plants with potential as antibacterial agents against several gram-positive bacteria, including the extraction solvents used, the metabolite compounds present in the extracts, and their effectiveness based on the inhibition zone diameter and/or minimum inhibitory concentration using the disc diffusion method. Keywords : Antibacterial, Diffusion Discs, Gram Positive, Secondary Metabolites
PENYERAPAN LOGAM BERAT SECARA BIOKIMIAWI OLEH BAKTERI GRAM POSITIF DAN GRAM NEGATIF: A MINI RIVIEW Dilo Jhosea Luciano Eduardo; Rudi Kartika; Ripaldy Apriansya; Shaparuddin Nur Arifullah; Muhammad Adhitya Rizkirullah
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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

Abstract

Scenedesmus sp. is a freshwater green alga that functions as an ionic biosorbent and can also be a bioindicator for water contaminated with hexavalent chromium Cr(VI) ion. This study aimed to observe the growth of Scenedesmus sp. exposed to Cr(VI) ion at various concentrations and analyze the remaining Cr(VI) ion that did not undergo biosorption by microalgae. This research was conducted on Scenedesmus sp. microalgae growth media using five bioreactors, each with a different Cr(VI) ion exposure concentration. The remaining ion in the growth media was analyzed for its concentration with an ultraviolet-visible spectrophotometer at time variations with an interval of two days. Maximum biosorption with exposure to Cr(VI) occurred at a concentration of 1.0 ppm on day 12 of 99.93%. At concentrations of 5.0 ppm and 7.0 ppm, microalgae growth was very poor, indicating the medium was toxic. Keywords: Biosorption, Hexavalent Chromium, Scenedesmus sp, Toxicity
PENYERAPAN LOGAM Pb2+ SECARA BIOLOGIS OLEH BAKTERI Escherichia coli Muhammad Sigit Ariski; Rudi Kartika; Rahmat Gunawan
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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

Abstract

The biological absorption of Pb2+ metal by Escherichia coli bacteria has been conducted. This study aims to determine the ability of Escherichia coli bacteria to absorb Pb2+ metal based on variations in Pb2+ exposure concentrations (0, 3, 6, 9, 12, 15 ppm) over different exposure times (days) and to identify the optimal concentration and time required for Escherichia coli in the biological absorption of Pb2+ metal. The maximum wavelength of the standard Pb2+ solution is 520 nm. Based on the test results, Escherichia coli was able to absorb Pb2+ at varying exposure concentrations (3, 6, 9, 12, 15 ppm) with biosorption percentages of 49.118%, 23.985%, 14.500%, 10.150%, and 7.808%, respectively. The optimal concentration and time required for Escherichia coli to absorb Pb2+ occurred on the 3rd day with a Pb2+ exposure concentration of 3 ppm. Keywords: Biosorption, Pb2+ metal, Escherichia coli
BIOSORPSI LOGAM OLEH BAKTERI Muhammad Harry Rahmadan; Rudi Kartika; Rahmat Gunawan
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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

Abstract

The growth of industry in Indonesia, especially in the textile sector, has led to an increase in the production of liquid waste containing heavy metals such as chromium (Cr), lead (Pb), and copper (Cu). These metals can pose significant health risks if they enter the body of living things. To overcome this, one alternative method of reducing liquid waste is to utilize biosorption by bacteria. This study aims to determine the ability of metal absorption by several bacteria, namely Streptococcus mutans, Flavobacterium sp, Pseudomonas sp, and Bacillus subtilis. The results showed that Streptococcus mutans was able to absorb Cr (VI) with a maximum efficiency of 90.80% at a concentration of 5 ppm on the 5th day. While Flavobacterium sp was able to absorb Pb at a maximum of 96% at a concentration of 2 ppm on the 18th day. Pseudomonassp showed maximum uptake of 96.192% for Cr(VI) at 5 ppm on day 14, 36.874% for Pb at 4 ppm on day 16, and 84.447% for Cu(II) at 3 ppm on day 16. Bacillussubtilis showed maximum uptake of 97.42% for Pb at 10 ppm. These findings indicate that bacteria have significant potential for heavy metal biosorption in wastewater treatment. Keywords: Absorption,Metal,Bacteria
REVIEW ARTIKEL: AKTIVITAS ANTIBAKTERI SENYAWA METABOLIT SEKUNDER PADA BEBERAPA EKSTRAK TANAMAN TERHADAP BAKTERI Escherichia coli Ripaldy Apriansya; Rudi Kartika; Shaparuddin Nur Arifullah; Dilo Jhosea Luciano Eduardo; Muhammad Raihan Aswat; Muhammad Adhitya Rizkirullah
PROSIDING SEMINAR KIMIA Vol 4 No 1 (2025): Prosiding SNK 2025
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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

Abstract

Indonesia's current biodiversity makes it something valuable for the community. Especially the use of plants that are used as medicinal materials. This is supported by the content of secondary metabolite compounds found in plants such as flavonoids, phenolics, steroids, saponins, tannins and others. These compounds have antibacterial activity that can be used to inhibit the growth of microbes that harm humans. By conducting a literature study of 10 national and international articles in the last 10 years of publication to review the ability of several plants that have potential as antibacterials. Tests were carried out on Escherichia coli bacteria which included the extract solvent used, the content of metabolite compounds in the extract and its activity based on the inhibition zone diameter value and/or minimum inhibitory concentration (MIC). Keywords: Antibacterial, inhibition zone diameter, Escherichia coli, minimum inhibitory concentration, secondary metabolites
Co-Authors Abimanyu, Priem Reyhan Adha, Laila Sufina Aditya, Roy Admaja, Junior Try Adnyana, Ketut Cahyadi Ahmad Suryadi, Ahmad Alimuddin - Alimuddin - Aman S Panggabean Aman S Panggabean, Aman S Aman S. Panggabean Aman Sentosa Panggabean Andi Kurniawan Annuary Laksono Arifwan - Ary Rizki Darmawi Ary Rizki Darmawi, Ary Rizki Aswad, Muhammad Raihan Aswat, Muhammad Raihan Aswat, Raihan Azka, Andi Aulia Urrahman Bayu Iskandar Bohari Yusuf Bohari Yusuf Bonifasius, Bonifasius Bustanussalam Bustanussalam Bustanussalam Bustanussalam, Bustanussalam Chairul Saleh Chairul Saleh Corebima, Damianus Develistur Delina Khairunnisa Dilo Jhosea Luciano Eduardo Dimas P, Riansyah Djihan Ryn Pratiwi, Djihan Ryn Dwi Lestari Dwi Susanto Edi Novian Jaya Edman Tandirerung Eka Damayanti Setyningrum Eka Setia Rini Eka Siswanto Syamsul Eno Julia Shafarini Erwin - Erwin Erwin Eva Marliana, Eva Fahmi, Miraz’hul Fahmi, Miraz’ul Farida Farida Fathur Rahman Fathur Rahman fatur Rahman, fatur Fauzi Rachman Fauzi Rachman Firmansyah - Fitriana, Mila Gelung, Antonius Hamsiana - Hendra Priatna Hendric Surya Putra I Wayan Arief Pradana Putra Iskandar, Bayu Jaya, Edi Novian Jofri, Dirga Hosea Seventeen Jofri, Dirga Hosea Seventin Julianto, Faisal Reja Kalmud Nia Tekha Laksono, Annuary Lila Karina Nuryanti Lilik Sulastri Lumban Gaol Veronica Destiana Mahrus, Muhammad Haissul Maria Amelia Kristianingrum Marliani, Nelly Marlina, Eva Mila Fitriana Mira Wahyuni Mira Wahyuni, Mira Miraz’hul Fahmi Muhammad Adhitya Rizkirullah Muhammad Haissul Mahrus Muhammad Harry Rahmadan Muhammad Raihan Aswat Muhammad Sigit Ariski Nasution, Safridah Hannum Noor Hindryawati Noor Hindryawati, Noor Nur Asmawati Nur, Istianti Irfa'a Octavianus, Riyan Octavianus, Riyan Partomouan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Partomuan Simanjuntak Prastiwi, Mela Pratama, Riansyah Dimas Rahmat Gunawan Rahmat Gunawan Rahmat Gunawan Rezky Estrada Ricard, Romoldus Jonius Rico Ramadhan, Rico Rida Awliyani Ripaldy Apriansya Riyan Octavianus Rizkirullah, M. Adhitya Rizkirullah, Muhammad Adhitya Rizkirullah, Muhammad Aditya Rizkullah, Muhammad Adhitya rizky maulida amalia hanif Ruga, Ritbey Rutdianti Rutdianti Rutdianti, Rutdianti Sahriani, Andi Saibun Sitorus Sanian, Sanian Sari Setianingsih Setianingsih, Sari Setyningrum, Eka Damayanti Shafarini, Eno Julia Shaparuddin Nur Arifullah Simanjuntak, Partomuan Solman, Solman Suaibatul Aslamiah Subur P Pasaribu Sudrajat Sudrajat Sukanadi, I Putu Sukma Wiratama Sulistiani, Oktaviana Dewi Sulistiyawati, Rizki Ramadhani Syelvia Lousiana Kalauw Syelvia Lousiana Ningsih Kalauw Tandirerung, Edman Tanjung, Faisal Trisnawati, Eka Elly Ulfa, Yulyanti Sartika Utami, Nanda Putri Wahyu Budi Utama Wahyu Budi Utama Wahyu Teguh Santoso Wahyu Teguh Santoso Wajdie, Farid Winni Astuti Winni Astuti, Winni Wulan Verani Yeni Agustina Yeni Agustina, Yeni Yerwanto Ilang Yerwanto Ilang, Yerwanto