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Jurnal Riset Kimia
ISSN 1978-628X · Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas · 252 artikel di indeks
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Artikel Jurnal
Antibacterial Edible Coating from Mandarin Orange Peel (Citrus reticulata) and Moringa Leaf (Moringa oleifera) Extract for Fish Preservation
Approximately 10% of total fish production is wasted due to decomposition. Excessive formalin use in fish preservation can be potentially lethal. One of the natural preservatives is edible coating, which can be prepared from natural ingredients such as mandarin orange peel (Citrus reticulata)…
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Artikel Jurnal
Decreasing of Mangan (II) in The Water Using Membrane of Moringa Seed Powder-TiO2 with Variation of Mass TiO2
Mn (II) is a metal ion commonly used in steel alloys, pigment industries, welding, fertilizers, pesticides, ceramics, and electronics. According to the Regulation of the Minister of Health No. 32 of 2017, the permissible content of Manganese in dug well water is 0.5 mg/L. The purpose of this study…
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Artikel Jurnal
Karakterisasi Selulosa dan Selulosa Asetat dari Limbah Cangkang Biji Pala (Myristica Fragransi) Aceh Selatan
Nutmeg seed shell waste contains 21.34% cellulose, 12.93% lignin, 53.67% crude fiber, 6.16% ash, 0.11% phenol, and 0.38% carbonyl. The content of cellulose and lignin in the nutmeg shell waste is quite large, so it can be used as something of value. Cellulose can be synthesized into cellulose…
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Artikel Jurnal
Pengembangan Sensor Kimia Berbasis Kertas Untuk Penetapan Kadar Kafein Sampel Kopi
The caffeine chemical sensor was developed by co-immobilizing sodium periodate (NaIO4), 3-methyl-2-benzothiazolinone hydrazone (MBTH), and acetic acid (CH3COOH) onto paper by using an adsorption technique. The addition of caffeine solution could change the color of the sensor from white to pale…
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Artikel Jurnal
Komponen Kimia Minyak Atsiri yang Diisolasi dari Daun Tanaman Pucuk Merah (Syzygium myrtifolium Walp.) dan Potensi Antibakteri serta Toksisitasnya
Pucuk merah (Syzygium myrtifolium Walp.) is an ornamental plant from the Myrtaceae family. Several phytochemical tests from previous researchers reported that pucuk merah contains secondary metabolites that have benefits such as antioxidants, antibacterials, and anti-cancer. In addition, the…
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Artikel Jurnal
Optimasi Proses Hidrolisis Rumput Laut Ulva Reticulata dengan Pelarut HNO3 untuk Produksi Bioetanol
One alternative to make biofuels and replace petroleum-based fuels is to convert non-food ingredients from Ulva reticulata seaweed into bioethanol. Seventy percent of the earth's surface is covered by microalgae and seaweeds that can be converted into bioethanol. Ulva seaweed contains 50.3%…
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Artikel Jurnal
Kajian Penggunaan Carbon Black N990 sebagai Bahan Pengisi Kompon Karet Alam: Sifat Dinamik, Kestabilan Termal, dan Ketahanan Panas
The manufacture of vibration damping material from natural rubber (NR) required an increase in dynamic properties, thermal stability, and resistance to heat. Using the Carbon Black N990 as a filler in NR vulcanizates can potentially increase on these properties. This research aims to study the…
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Potensi Daun Sirsak (Annona Muricata L.) sebagai Kandidat Fungisida Nabati Penghambat Pertumbuhan Cendawan Patogen Colletotrichum Gloeosporioides
The attack of the Colletotrichum gloeosporioides fungus causes losses to farmers. The prolonged use of synthetic fungicides to treat this fungus harms the environment and consumers. Soursop leaves (Annona muricata L.) contain antioxidant compounds that act as antifeedants, contact poisons, and…
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Artikel Jurnal
Sintesis dan Uji Fotostabilitas Kompleks Zn(II)-Astaxanthin
Astaxanthin is a pigment from the carotenoid group found in algae, shrimp, and crabs. Due to its chemical structure, astaxanthin has many health benefits but low stability against direct exposure to light and oxygen. In this study, the Zn-astaxanthin complex was synthesized using a reflux reactor…
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Identification of Secondary Metabolites and FT-IR Analysis of Getih-Getihan Fruit Extract (Rivina humilis L.)
Getih-getihan (Rivina humilis L.) plants can be used as antibacterial, antioxidant and natural pesticides. Most of the biological activities of natural products originated from secondary metabolites contained therein. Studies have shown the effects of leaves, branches, and fruits extract of R…
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Artikel Jurnal
Pengaruh Lama Penyimpanan dan Pengenceran Lindi Hitam Terhadap Karakteristik Lignin Kraft Acacia mangium
This study aimed to investigate the effects of storage time and dilution of black liquor (BL) from Acacia mangium kraft pulping on the characteristics of isolated Lignin. Lignin isolation was carried out by 1 and 2 steps of isolation using HCL 1M to precipitate Lignin, diluted before isolation…
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Artikel Jurnal
Sintesis Cepat Nanopartikel Perak dengan Irradiasi Gelombang Mikro dan Aplikasinya sebagai Antibakteri pada Kain Katun
Silver nanoparticles (AgNPs) are silver metal particles with nanoscale size. In the scale, they generate different properties compared to the original particle or material. AgNPs can be synthesized in several ways, one of which is through chemical reduction. This method is accelerated by heating…
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Artikel Jurnal
The Effect Of Sulphur (S) Doping and K+ Adsorption To The Electronic Properties Of Graphene: A Study By DFTB Method
A study on the effect of S doping and K+ adsorption to the electronic properties of graphene has been conducted by DFTB (Density Functional Tight Binding) calculation. The supercell of 40 x 40 x 1 configured from the 4x4x1 unit cell of graphene was optimized. The calculation shows that the Fermi…
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Sintesis, Karakterisasi Struktur, dan Kajian Molecular Docking Senyawa Turunan 4’-Metoksi Flavonol sebagai Antagonis Reseptor Estrogen Alpha (ER-a) pada Kanker Payudara
A long period of drug administration in breast cancer chemotherapy can cause various side effects. These situations encourage researchers to search for and develop alternative anticancer drugs through various approaches. This study aimed to synthesize a flavonol derivative (TF4) and to study the…
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Artikel Jurnal
Potensi Antimikroba dan Toksisitas Minyak Atsiri yang Diisolasi dari Biji Jintan (Carum carvi L.)
Caraway (Carum carvi L.) is one of the oldest medicinal plants found in various countries such as West Asia, North Africa, Pakistan, India, North America, Northern Europe, Iran, Russia, and Indonesia. This plant has been use for traditional medicines to treat digestive disorders, flatulence, colic…
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Pemanfaatan Ekstrak Biji Feun Kase (Thevetia peruviana) sebagai Inhibitor Korosi Logam Seng dalam Media HCl
Feun Kase seed extract can be used as a corrosion inhibitor on zinc metal in HCl solution. This study aims to determine the secondary metabolites contained in Feun Kase seed extract, inhibition efficiency and corrosion rate, and surface morphology of zinc metal in the inhibition process using Feun…
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Aktivitas Anti Hiperurisemia Ekstrak Akar Kaik-kaik (Uncaria cordata. L. Merr) pada Mencit (Mus muscullus) yang Diinduksi Kalium Oksonat
Consuming food containing high level of purin leads to increase uric acid in the blood which, in turn, cause hyperuricemia or high uric acid level. The use of improper allopurinol for hyperuricemia medication that doesn’t follow medical doctor’s prescription can give harmful side effect. It is…
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Artikel Jurnal
Evaluation of Lipid Profile and Liver Function After Administration of Scenedesmus dimorphus in Obese Mice
Obesity is a major public health problem in developing countries and is a significant risk factor for metabolic disorders. Microalgae Scenedesmus dimorphus (S. dimorphus) contains bioactive compounds such as pigment function as antioxidants, and omega-3 and omega-6 PUFAs have potential as…