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Pengembangan TiO2 nanowire terdoping Nikel Kobalt sebagai Fotokatalis yang Efisien untuk Menghilangkan Pewarna Tartrazine Misriyani; If'all; Sahabuddin, Lutfiah
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.7533

Abstract

Tartrazine is a yellow synthetic dye that is widely used as a coloring agent in food and beverage products. However, the safety of this chemical compound is still a concern due to potential health risks such as allergic reactions, hyperactive behavior in children, increased risk of cancer and other negative impacts. This research aim to introduces a new approach to reduce the concentration of tartrazine dye using cobalt and nickel doped TiO2 nanowires. Cobalt- and nickel-doped TiO2 nanowires were synthesized by a hydrothermal method, followed by thermal treatment at 270°C, and then used in a photocatalytic reactor using UV irradiation to facilitate the reduction of tartrazine concentration. Material characterization was carried out to determine the morphology and crystallinity of the photocatalyst which is effective in reducing the absorption of tartrazine solution. The photocatalytic degradation experiment demonstrates the ability of the synthesized material as a photocatalyst, effectively reducing the absorbance of tartrazine solution, a commonly used food coloring. This finding promises significant progress in the development of sustainable food safety strategies by offering a dye degradation method.
PHYSICOCHEMICAL, MECHANICAL, AND SENSORY CHARACTERISTICS OF EDIBLE PALM STARCH BUTYRATE PHOSPHATE FILMS AT DIFFERENT CONCENTRATIONS Rahim, Abdul; Nurmi; If'all
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 9 No. 3 (2025): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v9i3.4784

Abstract

This study objectives to obtain the concentration of phosphorylated butyrylated arenga starches (PBAS) at different concentrations in the manufacture of edible films based on the physicochemical, mechanical and sensory characteristics of the edible film produced. The research was conducted at the Agroindustry Laboratory, Faculty of Agriculture, Tadulako University, Palu. The study design used a completely randomized design (CRD) and a randomized block design (RBD). CRD was used to determine the effect of PBAS edible film at different concentrations on physicochemical characteristics including thickness, water holding capacity (WHC), oil holding capacity (OHC), water vapor transmission rate (WVTR), solubility and expandability, water content, pH test, and mechanical characteristics include tensile strength, elongation and Young's modulus. RBD was used to determine the effect of PBAS edible film at different concentrations on the sensory properties of edible film, namely color, texture, aroma and overall. The treatment used consisted of 8 levels, namely 2,0; 2,5; 3,0; 3,5; 4,0; 4,5; 50 and 5,5% were repeated 2 times to obtain 16 experimental units. The results showed that the optimal concentration of PBAS was 3,0%. Thickness, solubility, moisture content, WVTR, tensile strength, and elongation increased with increasing concentration of PBAS, while WHC, OHC, swelling power, pH, and modulus young's decreased with increasing concentration of PBAS. The sensory of edible film in the form of color, texture, aroma, and overall were included in the like category. The resulting edible film has good potential to be applied in food products.