Microwave-assisted Extraction of Natural Dyes from <i>Coleus atropurpureus</i> Leaves: The Effect of Solvent

Gala, Selfina; Sumarno, Sumarno; Mahfud, Mahfud

doi:10.1051/matecconf/201815606011

Cited by 11 publications

(6 citation statements)

References 14 publications

(7 reference statements)

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“…Penelitian ini menggunakan metode microwave-assisted extraction (MAE) seperti penelitian yang terdahulu [11,16,17,18]. Tahap awal yang harus dilakukan yaitu menimbang bahan sebanyak 10 g. Kemudian, bahan tersebut dimasukkan ke dalam labu leher tiga dan ditambahkan pelarut aquades.…”

Section: Ekstraksi Sampelunclassified

Ekstraksi Zat Warna Alami dari Kayu Bakau (Rhizophora mucronata) dengan Metode Microwave Assisted Extraction

Yuniati

Cahyani²,

Novidayasa³

et al. 2021

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Dyes are widely used for various manufacturing processes. However, the high use of synthetic dyes has resulted in pollution and health problems. To overcome this problem, one way that can be done is to return to using natural dyes. Natural dyes can be obtained from various plants, one of which is the Indonesian mangrove plant (Rhizophora mucronata). This research has succeeded in extracting natural dyestuffs from mangrove bark using the microwave-assisted extraction method. Mangrove wood extraction was carried out with solvents, namely distilled water and ethanol 96%, which was optimized based on the ratio of sample mass to volume of solvent and extraction power. The results showed that qualitatively the mangrove extract contained tannins, flavonoids, and quinones as compounds that gave chocolate color. The color resistance of mangrove extracts is very strong in textiles under alkaline conditions. Based on the results of extraction optimization, the optimum conditions were obtained at a ratio of 0.067 g/mL of 96% ethanol at 380 watts of power, with a yield percentage reaching 53.053%. Keywords: extraction, mangrove wood, microwave Zat warna banyak digunakan untuk berbagai proses manufaktur. Namun, tingginya penggunaan zat pewarna sintetis mengakibatkan pencemaran dan masalah kesehatan. Untuk mengatasi masalah tersebut, salah satu cara yang dapat dilakukan adalah kembali menggunakan zat warna alami. Zat pewarna alami dapat diperoleh dari berbagai tumbuhan, salah satunya tanaman bakau Indonesia (Rhizophora mucronata). Penelitian ini telah berhasil melakukan ekstraksi zat warna alami kulit kayu bakau dengan metode microwave-assisted extraction. Ekstraksi kayu bakau dilakukan dengan pelarut yaitu akuades dan etanol 96% yang dioptimasi berdasarkan rasio massa sampel–volume pelarut dan daya ekstraksi. Hasil penelitian menunjukkan bahwa secara kualitatif ekstrak kayu bakau mengandung tanin, flavonoid, dan kuinon sebagai senyawa pemberi warna coklat. Ketahanan warna ekstrak kayu bakau sangat kuat pada bahan tekstil pada kondisi basa. Berdasarkan hasil optimasi ekstraksi, kondisi optimum didapatkan pada rasio massa sampel-volum pelarut sebesar 0,067 g/mL dan daya sebesar 380 Watt sehingga diperoleh persentase yield mencapai 53,053%. Kata kunci: ekstraksi, kayu bakau, microwave

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Section: Ekstraksi Sampelunclassified

Ekstraksi Zat Warna Alami dari Kayu Bakau (Rhizophora mucronata) dengan Metode Microwave Assisted Extraction

Yuniati

Cahyani²,

Novidayasa³

et al. 2021

Self Cite

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“…where S is the mass of total chlorophyll dye extracted (mg), and W is the mass of Conocarpus lancifolius feed leaves (g) [22].…”

Section: Solvent Extraction and Determination Of Total Chlorophyllmentioning

confidence: 99%

Solvent Extraction Optimization of Chlorophyll Dye from Conocarpus Lancifolius Leaves

Jassim

2020

J. Eng. Technol. Sci.

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 Conocarpus lancifolius Leaves were examined as a potential source of chlorophyll dye. Optimization of extraction parameters is carried out using Taguchi experimental design.  The total chlorophyll yield is mostly dependent on extraction time, mixing ratio and temperature. There are large interactions between extraction parameters time, temperature and mixing ratio.  The quadratic model developed for chlorophyll extraction process had R2 of 97.54 %.

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“…This leads to more dye that can be extracted. Achieving the boiling point more quickly causes the solvents to evaporate faster, leading to a reduction in the solvent size to the materials [41].…”

Section: Comparedmentioning

confidence: 99%

High-Performance Natural Dyes for Cellulosic Fibers Review - part 1

Sid

El-Hawary

2019

J.Text.color. pol. sci.

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E NVIRONMENTAL issues and environmental protection laws are a global trend that imposes on us to use clean and environmentally friendly technologies, reduce toxic emissions, deal with environmentally and human harmful chemicals, and introduce modern technologies into production processes. It is well known that textile industries use many chemicals and chemical dyes contaminated with the environment, which necessitates the need to use non-harmful dyes as well as the tendency to use natural raw materials. These dyes were not harmful to natural pigments in the first place; meanwhile, they constituted a trend where natural fibers were used. Hence, cellulose became a major importance global trend for everything from natural origin, such as cotton, jute and linen. In addition, use of natural colorants on these fibers has become very much popular throughout the world by virtue of its eco-friendliness, and aesthetic approach.

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Microwave-assisted Extraction of Natural Dyes from Coleus atropurpureus Leaves: The Effect of Solvent

Cited by 11 publications

References 14 publications

Ekstraksi Zat Warna Alami dari Kayu Bakau (Rhizophora mucronata) dengan Metode Microwave Assisted Extraction

Ekstraksi Zat Warna Alami dari Kayu Bakau (Rhizophora mucronata) dengan Metode Microwave Assisted Extraction

Solvent Extraction Optimization of Chlorophyll Dye from Conocarpus Lancifolius Leaves

High-Performance Natural Dyes for Cellulosic Fibers Review - part 1

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