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The Journal of Pure and Applied Chemistry Research
Published by Universitas Brawijaya
ISSN : 23024690     EISSN : 25410733     DOI : http://dx.doi.org/10.21776/ub.jpacr
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology
The Journal of Pure and Applied Chemistry Research focuses in publishing research articles in the field of Chemistry and Applied Chemistry. The target is in exploring, investigating, and developing chemicals sources from local and/or Indonesian to increase the value. Scope of the journal is organic chemistry, analytical chemistry, inorganic chemistry, biochemistry, and physical chemistry. Included the topic also organic chemistry natural product, theoretical and computational chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Vol. 11 No. 2 (2022): Edition May-August 2022" : 2 Documents clear
Synthesis of Chitosan Magnetic Nanoparticles using Glutaraldehyde and Tripolyphosphate as Crosslinker Rahmani, Indri Alidha; Mulyasuryani, Ani; Andayani, Ulfa
The Journal of Pure and Applied Chemistry Research Vol. 11 No. 2 (2022): Edition May-August 2022
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.%y.011.02.683

Abstract

Chitosan is an abundant natural polymer, which able to adsorb Pb2+. However, chitosan has the drawback of being unstable in acid and alkaline conditions, so it needs cross-linking. In this article, we will compare the usage of two crosslinkers, glutaraldehyde (GD) and tripolyphosphate (TPP), to solve these issues. The synthesis of chitosan magnetic nanoparticles was carried out by co-precipitation with the addition of glutaraldehyde under acidic conditions and the addition of TPP under alkaline conditions. The results showed that the FTIR spectrum gave characteristic bands at 3131.96 cm-1 (OH and NH), 1635.86 cm-1 (C=O), 1401.97 cm-1 (CN), ~1110 cm-1 (COC), and ~617 cm-1 (Fe-O). SEM analysis showed that the surface morphology of CMNP-GD particle aggregation was clear more than that of CMNP-TPP. The size of the synthesized nanoparticles was determined by PSA analysis, which was 131.95 µm and 137.10 µm, respectively. The results of the XRD analysis showed that, in addition to the Fe3O4 and chitosan phases, the produced CMNP also contained γ-Fe2O3 phase, which was considered to be caused by Fe3O4 oxidation. Keywords: nanoparticle, chitosan, magnetic, glutaraldehyde, tripolyphosphate
Secondary Metabolites of Nicotiana tabacum and Their Biological Activities: A Review Putri, Devi Anggraini; Solihah, Riyadatus; Oktavia, Rianur; Anggraini, Dwi Aprilia; Fatmawati, Sri
The Journal of Pure and Applied Chemistry Research Vol. 11 No. 2 (2022): Edition May-August 2022
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.%y.011.02.646

Abstract

Nicotiana tabacum (tobacco) is one of the most commercially agricultural crops in the world. Indonesia is one of the top ten tobacco producing countries in the world since 1990’s. Based on literature studies, tobacco has the main secondary metabolites such as cembranoids and flavonoids. They have fine biological activities as antiviral, antimicrobial, antioxidant, anti-HIV, anti-proliferative, anti-inflammatory, anti-parasitic, anti-termite, and cytotoxicity effects. Therefore, N. tabacum is potential for further investigation on natural products research. This review aims to provide scientific evidences related to structure activity relationship between secondary metabolites and biological activities of N. tabacum. 

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