TY - JOUR
T1 - Microwave-assisted Extraction of Natural Dyes from Coleus atropurpureus Leaves
T2 - 24th Regional Symposium on Chemical Engineering, RSCE 2017
AU - Gala, Selfina
AU - Sumarno, Sumarno
AU - Mahfud, Mahfud
N1 - Publisher Copyright:
© The Authors, published by EDP Sciences, 2018.
PY - 2018/3/14
Y1 - 2018/3/14
N2 - A microwave-assisted extraction system was used to extract natural dyes from Coleus atropurpureus leaves. The effects of water solvent of the temperature at 100°C and 80°C as well as ethanol solvent 96% were investigated. This is done at the various material to solvent ratio (0.001, 0.0025, 0.005 g/mL) and microwave power (264, 400, 600 watt). The optimal conditions of the extraction were obtained on a water solvent of the temperature at 100°C with material to solvent ratio 0.001 g/mL, irradiation power 400 watt, extraction time 10 min, material size 35-60 mesh, the optimum yield of 44.48%. Identification of groups of pigments contained in the Coleus atropurpureus leaves is known categories tannins and flavonoids. Fourier Transform Infrared Spectroscopy was used to identify the major chemical groups in the extracted dyes.
AB - A microwave-assisted extraction system was used to extract natural dyes from Coleus atropurpureus leaves. The effects of water solvent of the temperature at 100°C and 80°C as well as ethanol solvent 96% were investigated. This is done at the various material to solvent ratio (0.001, 0.0025, 0.005 g/mL) and microwave power (264, 400, 600 watt). The optimal conditions of the extraction were obtained on a water solvent of the temperature at 100°C with material to solvent ratio 0.001 g/mL, irradiation power 400 watt, extraction time 10 min, material size 35-60 mesh, the optimum yield of 44.48%. Identification of groups of pigments contained in the Coleus atropurpureus leaves is known categories tannins and flavonoids. Fourier Transform Infrared Spectroscopy was used to identify the major chemical groups in the extracted dyes.
KW - Coleus atropurpureus
KW - Extraction
KW - Microwave
KW - Natural dye
KW - Solvent
UR - http://www.scopus.com/inward/record.url?scp=85044365405&partnerID=8YFLogxK
U2 - 10.1051/matecconf/201815606011
DO - 10.1051/matecconf/201815606011
M3 - Conference article
AN - SCOPUS:85044365405
SN - 2261-236X
VL - 156
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
M1 - 06011
Y2 - 15 November 2017 through 16 November 2017
ER -