Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Indonesian Journal of Pure and Applied Chemistry al Kimiya : Jurnal Ilmu Kimia dan Terapan
Azira, Ayu
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
EDIBLE FILM BERBASIS PULP KAKAO (Theobroma cacao L.) DAN KULIT BUAH SEMANGKA (Citrullus lanatus) SEBAGAI TEKNOLOGI FOOD PACKAGING Reski, Alpi Meitia; Patricia, Anggun Dwi; Azira, Ayu; Sihotang, Andreas; Tarigan, Indra Lasmana
Indonesian Journal of Pure and Applied Chemistry Vol 7, No 3 (2024)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v7i3.75567

Abstract

This study evaluated the physical characteristics (thickness and surface morphology) and chemical properties (composition and functional groups) of edible films made from cocoa pulp and watermelon rind. Additionally, it investigated the effect of citrulline concentration on the solubility of the film and its impact on extending the shelf life of Jambi potato dodol. The experimental data were statistically analyzed using analysis of variance (ANOVA) to determine the significance of differences among treatments. The citrulline concentration variation factor consisted of two concentration levels, namely 5% and 15%. The results showed that the thickness of the edible film was 0.26 mm for the film containing 5% citrulline and 0.16 mm for the film with 15% citrulline. The viscosity of the film-forming solution influenced the surface morphology of the edible film. A chemical characteristics test was carried out using FTIR analysis, which showed the presence of several different functional groups at various wave numbers. Dodol packaged with edible film demonstrated a relatively good shelf life against microbial growth. The most effective edible film in enhancing resistance to bacterial contamination was the one containing 15% citrullin.
Adsorption of Remazol Brilliant Blue Dye Using Palm Oil Shell Fly Ash HCl Activated Lestari, Intan; Azira, Ayu; Farid, Faizar
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 10 No. 2 (2023): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v10i2.29420

Abstract

Remazol Brilliant blue is an azo dye that is widely used in textile dyeing. The most appropriate handling method to be used in overcoming problems caused by textile dye waste is adsorption. Fly ash is an adsorbent that can be used to overcome this problem. Chemical activation was carried out using 1 M HCl solution. Besides that, physical activation was also carried out at 500°C for 1 hour. Research is needed to determine the optimum conditions for fly ash in dye adsorption to produce high adsorption efficiency. XRF characterization showed that palm shell fly ash was dominated by CaO of 71.064% and SiO2 of 15.734%. Characterization using FTIR shows the presence of Si-O groups in Fly ash. To analyze the surface morphology of the fly ash adsorbent, an SEM test was carried out and it was known that the surface morphology of the fly ash adsorbent after chemical and physical activation showed pore formation. Characterization using Surface Area Analyzer showed a surface area of 13.6153 m2/g. optimum absorption conditions at pH 6 with an adsorption capacity of 15.84 mg/g. optimum contact time of 60 minutes with an adsorption capacity of 15.54 mg/g. The optimum adsorbent mass is 0.5 g with an adsorption capacity of 9.54 mg/g and the optimum adsorbent concentration is at 200 ppm with an adsorption capacity of 69.08 mg/g. In this study the adsorption model used is the Freundlich isotherm. Based on the research result, it is known that fly ash is a suitable adsorbent for dye adsorption which is characterized by high color removal efficiency. Further characterization regarding the initial conditions of fly ash is needed as a comparison for fly ash after activation
Co-Authors Faizar Farid Indra Lasmana Tarigan Intan Lestari Patricia, Anggun Dwi Reski, Alpi Meitia Sihotang, Andreas