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

  • 투고 : 2016.02.24
  • 심사 : 2016.03.10
  • 발행 : 2016.03.27

초록

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 $37.97(J/cm^3)^{1/2}$. 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).

키워드

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

참고문헌

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피인용 문헌

  1. 1. Evaluation of Hygienic Properties and Effects of Printing on Curcuma- and Coffee-Dyed Cotton Fabrics vol.28, pp.1, 2017, doi:10.5764/TCF.2016.28.1.1
  2. 2. The Dyeing Properties and Functionality of Water Lily(Nymphaea tetragona) Leaves Extract as a New Natural Dye Resource(1): Dyeing of Cotton Fiber vol.28, pp.4, 2016, doi:10.5764/TCF.2016.28.1.1

과제정보

연구 과제 주관 기관 : 한국연구재단