Article Per Year (5 Year)
p-Index From 2020 - 2025
0.751
P-Index
This Author published in this journals
All Journal KOVALEN: Jurnal Riset Kimia Jurnal Teknik Terapan (J-TETA) Indonesian Journal of Chemical Science
Meka Saima Perdani
Unknown Affiliation
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Pengaruh Ukuran Partikel dan Suhu Terhadap Derajat Asetilasi dan Yield Pada Ekstraksi Kitin dari Belalang Melalui Green Method: The Effect of Particle Size and Temperature on the Degree of Acetylation and Yield in Chitin Extraction from Grasshoppers Using the Green Method Savitri, Meila; Pangestoe, Safina Handayani; Hilman Imadul Umam; Meka Saima Perdani; Teguh Pambudi
KOVALEN: Jurnal Riset Kimia Vol. 10 No. 2 (2024): August Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2024.v10.i2.17268

Abstract

Grasshoppers are insects that are pests for agriculture. In recent years, humans have begun to realize the broader economic value of insects, which are not only used as animal feed but also as sustainable biopolymers, such as chitin and chitosan. Grasshoppers' body organs contain chitin, including the digestive tract (intestine), trachea system, and exoskeleton (outer skeleton). Currently, the chitin extraction process using the green method with Deep Eutectic Solvent (DES) is more popular because it reduces the use of dangerous chemicals, reduces waste, and is overall more environmentally friendly than using chemical and biological methods. In the chitin extraction process, process parameters, such as reaction time, temperature, and particle size of the raw material, are adjusted to obtain the desired properties of chitin. This research aims to determine the effect of particle size and temperature on chitin yield and degree of acetylation (DA). The research results show that the yield values ​​and DA values ​​produced in this research are not by similar references which have described the characteristics of chitin. However, there is one sample showing that the most optimal DA value is the BSC 7 150 mesh 90°C sample, at wavelengths of 1560 cm-1 and 2875 cm-1, producing a DA value of 55.79514% and DD 44.20485933%. The best yield value was BSC 2 110°C 50 mesh, with a value of 22.1%.
Adsorpsi Logam Cu(II) dengan Hidrogel CMC/Pektin Komposisi 2:1 Menggunakan Metode Freeze-Thaw: Adsorption of Cu(II) Metal by Hydrogel CMC/Pectin Composition of 2:1 Using The Freeze-Thaw Method Maelan, Nabila Maharani; Nurazizah Melani Dewi; Sri Andini; Meka Saima Perdani; Aulia Wahyuningtyas
KOVALEN: Jurnal Riset Kimia Vol. 10 No. 2 (2024): August Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2024.v10.i2.17273

Abstract

The Citarum River is included in the category of the most polluted river in the world because it contains chemicals that can reduce air quality. This pollution not only affects air quality but also threatens public health and the surrounding ecosystem. Heavy metals, especially Cu(II), are one of the contaminants that have exceeded the threshold and can cause serious health impacts, including organ damage and nervous system disorders. Hydrogel is an alternative adsorbent that is widely used in various fields, especially in the field of air purification. Hydrogel has the ability to absorb and adsorb contaminants. In particular, Carboxymethyl Cellulose (CMC) hydrogel and pectin hydrogel have attracted much attention for safe water purification because they are non-toxic and have good biodegradability and biocompatibility. The researchers conducted a study on the adsorption of Cu(II) metal using a Carboxymethyl Cellulose (CMC) hydrogel adsorbent and pectin in a 2:1 composition through the Freeze-thaw method. FTIR analysis of the CMC/pectin hydrogel confirmed the presence of C-O-, O-H, C=O, C-H, OH bending, and COOH stretching vibrations. Based on BET analysis, the hydrogel has micropores, a type 1 isotherm, and a surface area of ​​1,889 m2/g. The Langmuir isotherm model was used to determine the ideal adsorption conditions to be a concentration of 298 ppm, an adsorption capacity of 1,0918 mg/g, and an adsorption efficiency of 13,485%.
The Effect of Texapon Variations on the Quality Standards of Motor Vehicle Shampoo Derived from Residual Clothing Fragrance Production in the Industry: Vol. 13 No. 3 (2024) Adellia Nilam Cahya; Cintiya Septa Hasannah; Meka Saima Perdani; Wilma Nurrul Adzillah
Indonesian Journal of Chemical Science Vol. 13 No. 3 (2024): Indonesian Journal of Chemical Science
Publisher : Prodi Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v13i3.4595

Abstract

Laundry softener or fragrance is a liquid material that is added at the final stage of the washing process with the aim of softening and providing a fragrant aroma to clothes. The main ingredient in laundry softener is surfactant. This research aims to process leftover fragrance from one of the FMCG (Fast Moving Consumer Goods) industries in Indonesia into a motor vehicle shampoo product that has market value and can be used by the community at a more economical price, while maintaining quality comparable to commercial products. The formulation of this vehicle shampoo is determined through the trial and error method. Subsequently, samples are tested for pH, density, viscosity, foaming power, and corrosion rate. The test results obtained from this study show a pH value of 7.92, a density of 1.025 gr/cm3, a viscosity of 2.41 Pa.s, foam stability of 91.67%, and a corrosion rate of 0.0929095 mm/year, classified as "Excellent". This indicates that the motor vehicle shampoo produced meets the corrosion resistance standard.
Karakterisasi dan Optimasi penggunaan Katalis CaO/SiO₂ dari Biomassa untuk Sintesis Biodiesel dari Minyak Jelantah Dian, Amalia; Meka Saima Perdani; Hilman Imadul Umam; Christin Octaviani Sitanggang; Eti Ayu Nurhana
Jurnal Teknik Terapan Vol. 4 No. 2 (2025): Oktober
Publisher : P3M Politeknik Negeri Jember

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

Abstract

Environmentally friendly biodiesel can be produced from used cooking oil through transesterification with heterogeneous catalysts. This study synthesized CaO–SiO₂ catalysts from eggshells and rice husks through calcination and impregnation, with a reaction at 65°C, an oil:methanol ratio of 1:9, and a catalyst variation of 4–8%. FTIR, SEM, and BET characterizations showed the presence of CaO and Si–O–Si with porous morphology and surface area that support catalytic activity. The best results were achieved at 4% catalyst with a conversion of 63.64%, demonstrating the potential of biomass as a sustainable catalyst for biodiesel production.
Co-Authors Adellia Nilam Cahya Aulia Wahyuningtyas Christin Octaviani Sitanggang Cintiya Septa Hasannah Dian, Amalia Eti Ayu Nurhana Hilman Imadul Umam Maelan, Nabila Maharani Nurazizah Melani Dewi Pangestoe, Safina Handayani Savitri, Meila Sri Andini Teguh Pambudi Wilma Nurrul Adzilla