Journal Description

KOVALEN: Jurnal Riset Kimia is a peer-reviewed journal of chemistry that published by the Chemistry Department, Tadulako University, Indonesia. This journal concern with publishing the original research articles, review articles, and the current issues related to chemistry. Publishing frequency 3 issues per year, in April, August, and December. KOVALEN has been established since 2015 with volume 1 no 1 (December 2015).


ISSN: 2477-5398 (electronic)


The Scope of this journal including:
1. Theoretical and environmental chemistry study
2. Material and biomaterial synthesis, including their application 
3. Isolation, purification, and modification of the natural product
4. Development and validation of analytical methods
5. Isolation and application of enzyme

Vol. 7 No. 3 (2021): Edisi Desember

Published: Dec 30, 2021

Analisis Metabolit Sekunder dan Aktivitas Ekstrak Etanol Kulit Buah Salak (Salacca zalacca (Gaertn.) Voss) Terhadap Kadar Glukosa dan Ureum Kreatinin Tikus Putih Jantan (Rattus norvegicus)

Analysis of Secondary Metabolites and Activity of Ethanol Extract of Snake Fruit Peel (Salacca zalacca (Gaertn.) Voss) on Glucose and Ureum Creatinine Levels of Male White Rats (Rattus norvegicus)

161-168 Tien Wahyu Handayani, Agustinus Widodo, Risna Yanti, Erdy Prasetyo, Zulfaidah, Joni Tandi
Read Statistic: 37

Analisis Termodinamika dan Kinetika Nanopartikel Karbon (C-Dot) dari Buah Durian Sebagai Inhibitor Korosi Tembaga

Thermodynamics and Kinetics Analysis of Carbon-Dots from Durian as Copper Corrosion Inhibitor

169-177 Faradisa Anindita, Noviyan Darmawan, Zainal Alim Mas'ud
Read Statistic: 72

Kajian Kadar Akrilamida dalam Kopi Arabika dengan Variasi Suhu Penyangraian

Study of Acrylamide Levels in Arabica Coffee with Variations in Roasting Temperature

178-185 Gatut Ari Wardani, Lilis Tuslinah, Eva Saefatuzzahro, Indra
Read Statistic: 28

Limbah Sabut Kelapa Muda (Cocos nucifera L.) sebagai Sumber Pewarna Kain

Young Coconut Coir (Cocos nucifera L.) Waste as a Source of Cloth Dye

186-193 Ni Ketut Sumarni, Umma Fahriah Soleh, Nurhaeni, Prismawiryanti
Read Statistic: 23

The Effect of Concentration of Citric Acid Solution on Extraction of Pectin from Watermelon Albedo

194-201 Tifa Paramitha, Tika Paramitha
Read Statistic: 27

Analisis Fitokimia Air Rebusan Daun Mantalalu (Euphorbia hirta L) Asal Kota Palu Provinsi Sulawesi Tengah

Phytochemical Analysis of Mantalalu Leaves Boiled Water from Palu City Central Sulawesi

202-207 Asniati, Muthmainnah
Read Statistic: 22

Pengaruh Waktu Hidrotermal terhadap Karakteristik Zeolite Socony Mobile-5 (ZSM-5) Tanpa Template Menggunakan Reaktor Autoclave

The Effect of Hydrotermal Time in Characteristics of Zeolite Socony Mobile-5 (ZSM-5) Without Template Using Autoclave Reactor

208-213 Mukhtar Ghozali, Gamaliel Tanaka, Muhammad Misbahussalam, Tifa Paramitha
Read Statistic: 10

Hidrolisis Protein Teripang Hitam (Holothuria edulis) Menggunakan Bromelin Kasar dari Batang Nanas (Ananas comocus L)

Protein Hydrolysis of Black Sea Cucumber (Holothuria edulis) Using Crude Bromelain from Pineapple Stem (Ananas comocus L)

214-219 Fakhrija Sahraini, Abd. Rahman Razak, Syaiful Bahri, Hardi Ys.
Read Statistic: 15

Pembuatan Konsentrat Protein Ampas Kelapa (Cocos nucifera L.) Bebas Lemak pada Berbagai Konsentrasi NaOH

Production of Fat-Free Coconut Pulp (Cocos nucifera L.) Protein Concentrates at Various NaOH Concentrations

220-226 Ulayya Kasio, Syaiful Bahri, Husain Sosidi, Khairuddin, Ni Ketut Sumarni, Ahmad Ridhay
Read Statistic: 12

Skrining Fitokimia dan Uji Aktivitas Antibakteri Fraksi Etil Asetat dan n-Heksana dari Daun Mangga Kasturi (Mangifera casturi Kosterm.)

Antibacterial Activity Test of Ethyl Acetate and n-Hexane Fraction from Kasturi Mango Leaves (Mangifera casturi Kosterm.)

227-233 Dwi Lestari, Desy Fitriani, Serli Anngraeni
Read Statistic: 11
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