Effect of Extractant on the Color Characteristics of Natural Colorant Extracts (천연색소의 색 특성에 미치는 추출용매의 영향)

Young-Hee Lee (이영희); Han-Do Kim (김한도); Young-Mee Baek (박영광); Young Mee Baek (백영미); Jung-Soo Kim (김정수); Dong-Jin Lee (이동진)

doi:10.5764/TCF.2016.28.1.1

Effect of Extractant on the Color Characteristics of Natural Colorant Extracts

Textile Coloration and Finishing
Abbr : Text. Color. and Finish.
2016, 28(1), pp.1-13
DOI : 10.5764/TCF.2016.28.1.1
Publisher : The Korean Society Of Dyers And Finishers
Research Area : Engineering > Fiber Engineering > Dyeing Engineering
Received : February 24, 2016
Accepted : March 10, 2016

Young-Hee Lee ¹, Han-Do Kim ¹, Young-Mee Baek ¹, Young Mee Baek ¹, Jung-Soo Kim ², Dong-Jin Lee ²

¹부산대학교
²한국신발피혁연구원

Accredited

ABSTRACT

Abstract Natural colorant extracts were obtained by extraction from tumeric root, gardenia seeds, mugwort and green tea using water, methanol, ethanol and acetone as extractants at room temperature for 3 hours under shaking condition(180rpm) with liquor ratio(solid:solvent; 1:100). The main pigment components of tumeric root, gardenia seeds, mugwort and green tea are known to be curcumin, crocin, chlorophyll b and epigallocatechin gallate, respectively. The effects of the kind of extractant and pH on the color characteristics of natural colorant extracts were investigated. The solubility parameters of pigment components were determined to find adequate extractant. The solubility parameters of curcumin, crocin, chlorophyll b and epigallocatechin gallate were found to be 27.85, 29.40, 19.48 and 37.97(J/cm3)1/2. As expected, solvents that have a solubility parameter similar to that of pigment component were generally found to be effective to obtain pigment extracts having high visible absorbance(A). The extract(pigment/solvent) with high visible absorbance was generally found to have low L*(lightness) and high Chroma(C*, purity).

KEYWORDS

Keywords natural colorant extract, extractant, color characteristics, solubility parameter, tumeric, gardenia, mugwort, green tea

Citation status

* References for papers published after 2023 are currently being built.

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Effect of Extractant on the Color Characteristics of Natural Colorant Extracts

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* References for papers published after 2023 are currently being built.

Textile Coloration and Finishing KCI Impact Factor : 0.0

Effect of Extractant on the Color Characteristics of Natural Colorant Extracts

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* References for papers published after 2023 are currently being built.