Abstract
Synthetic dye waste of textile industry has contaminated the water and aquatic living organism. One of the solution is used teak leaves as the natural dye. Common conventional extraction process is soxhletation which need more time and more solvent. One of extraction method that has been developed is ultrasound assisted extraction (UAE). The objectives of this research were to study the effect of solvent, extraction time, pH, and extraction yield. The conclusion of this research was optimum yield of teak leaves extract about 42,79% at pH 3 and extraction time of 20 minutes with aquadest as the solvent using UAE method. If natural dye of taek leaves was used on cotton, the color will change depend on fixator that was added. In GC-MS analysis, some compound that were detected are decanoic acid methyl ester and methyl tetradecanoate. Both of the compound have chromophore cluster.
Highlights
IntroduceIn April 2016, Rancaekek people in Bandung complained about textile industrial waste which contaminated their agriculture lands, the lost was 11,3 trillion Rupiah
Synthetic dye waste of textile industry has contaminated the water and aquatic living organism
The natural dye was analyzed by GC-MC and will be applied on cotton fabric
Summary
In April 2016, Rancaekek people in Bandung complained about textile industrial waste which contaminated their agriculture lands, the lost was 11,3 trillion Rupiah. Textile industrial waste which was thrown to river contaminated water and aquatic living organism. The contamination of textile industrial waste was shown by physical condition of river surface, the colors changing, turbidity of the water, the smell of the water and agriculture lands that was broken near the river. One of the solutions to reduce the impact of industrial textile waste so it is not dangerous anymore for the environment or living organism is to use the natural dye for textile. Conventional extraction process that commonly used in research before to extract teak leaves are soxhlet extraction, reflux extraction method, and maseration which is need more time and more solvent. According to those reasons inovation of extraction technology is needed that can save time. After that is to determine the optimum yield, and qualitative analysis of pigment in yield, the chromophore cluster using GC-MS, and will be applied on fabric
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