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All Journal VALENSI Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Kedokteran Syiah Kuala Jurnal Ilmu Kimia Universitas Brawijaya Bulletin of Chemical Reaction Engineering & Catalysis The Journal of Pure and Applied Chemistry Research Jurnal Ilmiah Administrasi Publik JURNAL ILMU PEMERINTAHAN Indonesian Journal of Chemistry Jurnal Menara Ekonomi : Penelitian dan Kajian Ilmiah Bidang Ekonomi Jurnal Kolaboratif Sains Bulletin of Chemical Reaction Engineering & Catalysis
Masruri Masruri
Universitas Brawijaya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : The Journal of Pure and Applied Chemistry Research

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Characteristic of Cellulose Isolated From Papyrus Fibers (Borrasus flabelifer L) And Its Citrate Ester Anna Apriani Maniuk Solo; Masruri MASRURI; Barlah Rumhayati
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1280.802 KB) | DOI: 10.21776/ub.jpacr.2018.007.03.410

Abstract

The chemical modification using esterification method to modification the papyrus fiber cellulose with citric acid was studied. Parameters investigated included the citrate acid concentration (between 0.3 to 0.6 M), and reaction temperature (from 110 to 140o C). The ester cellulose, which was a new product reaction between citric acid and cellulose, had Substitution Degree (SD) from 0.088 to 1.147 and yield from 73.75% to 97.73%. The esterification product was analyzed with FTIR spectrophotometer and Scanning Electron Microscopy (SEM) to identify the functional groups and the morphology of ester cellulose. Based on this research, modified cellulose have the peak of ester carbonyl functional group (C=O) at 1740.43 cm-1 and O-H alcohol functional group (O-H) at band 3406.82cm-1. Modification with citric acid 0.6 M at 120o C is the best condition to get the high DS value 1.147 in 97.73 yield as a brown powder.
Synthesis and Characterization of Cellulose Acetate and Nanocellulose Acetate from Sengon Agroindustrial Waste (Paraserianthes falcataria) Nur Ikhtiarini; Masruri MASRURI; Siti Mariyah Ulfa; Widodo Widodo
The Journal of Pure and Applied Chemistry Research Vol 11, No 3 (2022): Edition September-December 2022
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2022.011.03.644

Abstract

Synthesis and characterization of cellulose acetate and nanocellulose acetate have been carried out. Cellulose was isolated from sengon wood powder waste using 6% NaOH solution and bleached with NaOCl. The cellulose was hydrolyzed with 60% formic acid to obtain nanocellulose. Cellulose and nanocellulose were then modified with acetic anhydride. The synthesized products were characterized by FTIR to identify organic functional groups, powder XRD to measure crystallinity, and SEM to observe surface morphology. Solubility tests in several types of solvents were also performed. The degree of substitution (DS) of cellulose acetate and nanocellulose acetate was carried out based on Indonesia’s SNI 0444:2009 method. The DS calculation show that the cellulose acetate and nanocellulose have DS of 2.9 and 2.1, respectively.
Study Direction to Oxidize a Local Pine Rosin with Potassium Permanganate Widia Edy Kuncoro; Moh. Farid Rahman; Masruri MASRURI, Ph.D; Siti Mariyah Ulfa
The Journal of Pure and Applied Chemistry Research Vol 12, No 1 (2023): Edition January-April 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.01.3298

Abstract

Pine rosin acid or Gondorukem is a solid resin obtained from pine sap. It is yielded as residue from a high temperature distillation process. In industry, rosin acid is widely used and modified as raw material in paint, ink, adhesive, resin, thermoplastic, and thermosetting polymer. Modification process generally is undergone to generate rosin acid with specific properties and for certain purposes. This paper report, potassium permanganate oxidation reaction of pine rosin acid under acidic process at low temperature. Product identified as 13,14-seco-13-oxoabiet-7-ene-dioic acid (0.52%), 7,8-dihydroxy-abietic acid (6.62%), and 7-oxo-dehydroabietic acid (1.49%). The crude product was isolated as a pale to white solid. Under high temperature a yellowish product was resulted. In overall, the yield isolated in between 46.4% and 86.0%.
Antibacterial Activity of Legundi Leaf (Vitex trifolia) Essential Oil Using In-Vitro and In-Silico Methods Retno Indriatie; Masruri Masruri; Warsito Warsito
The Journal of Pure and Applied Chemistry Research Vol 12, No 1 (2023): Edition January-April 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.01.738

Abstract

Staphylococcus aureus causes many severe diseases, such as meningitis, lung infection, and hematogenous osteomyelitis. The prolonged use of antibiotic drugs leads to antimicrobial resistance (AMR), decreasing their effectiveness against S. aureus. Therefore, novel drugs isolated from natural products have been the focus of many researchers to solve that problem. The essential oils isolated from Vitex trifolia leaf have many pharmacological activities, including antibacterial and antifungal activities. In this research, essential oil was isolated by distillation, followed by GC-MS analysis. The antibacterial activity of the essential oil was conducted using a disk diffusion test (Kirby-Bauer) and by molecular docking study. The essential oil yield from distillation was 0.13%, containing major compounds such as sabinene, eucalyptol, terpinen-4-ol, α-terpineol, limonene, and caryophyllene. The essential oil gave intermediate inhibition against S. aureus with a 6.91 ± 0.03 mm inhibition zone in 20 mg/mL of the sample. Using molecular docking study, caryophyllene and α-terpineol were the key compounds for inhibiting the active site of tyrosyl-tRNA synthetase, sortase A, and dihydrofolate reductase that are responsible for the S. aureus growth and development.
Co-Authors Ady Sumaryanto Alyaa Farrah Dibha Amini, Helda Wika Amini, Rekfa Wika Arda Rista Lestari Arie Srihardyastutie Aulann'iam Aulann'iam Aulanni'am Aulanni'am Bambang Ismuyanto Barlah Rumhayati Barlah Rumhayati Dasrul Dasrul Denis Al Karoma Dian Mulyani Dodyk Pranowo Eka Novitasari Eria Anggraini Fadillah Utami Prasetyaningtyas Fadlilah, Lilik Nur George Towar Ikbal Tawakkal Irfan Hanafi Arif Jatmiko Eko Witoyo Lailatul Rohmah M. Abdi Dzil Ikhram W. Moh. Farid Rahman Moh. Farid Rahman Moh. Zakiy Fiddin Mohamad Lutfillah Mohammad Farid Rahman Mohammad Farid Rahman Momodou Salieu Sowe Momodou Salieu Sowe Mukesh Sharma Nelsy Dian Permatasari Noval Dwi Wijaya Nur Ikhtiarini Nuraini Uswatun Chasana Prasetyo Adi Prima Yulianti Rana Ayu Ning Tyas Rekfa Wika Amini Retno Indriatie Rizal Nur Alfian Rizki Wahyu Aji Wibowo Rurini R Rurini R Rurini Retnowati Shoja Ismela SIMON BAMBANG WIDJANARKO Siti Mariyah Ulfa Siti Nurul Afifah Solo, Anna Apriani Maniuk Suci Susanti Sudarminto Setyo Yuwono Tutik Setianingsih Warsito Warsito Wawan Sobari Widia Edy Kuncoro Widodo Widodo Yuga Adi Pranata