colorimetric assay and antibacterial activity of cotton, silk, and wool fabrics dyed with peony, pomegranate, clove, coptis chinenis and gallnut extracts比色测定和抗菌活性棉、丝绸和羊毛织物染色与牡丹、石榴、丁香、黄连chinenis和五倍子提取物.pdfVIP

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colorimetric assay and antibacterial activity of cotton, silk, and wool fabrics dyed with peony, pomegranate, clove, coptis chinenis and gallnut extracts比色测定和抗菌活性棉、丝绸和羊毛织物染色与牡丹、石榴、丁香、黄连chinenis和五倍子提取物.pdf

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colorimetric assay and antibacterial activity of cotton, silk, and wool fabrics dyed with peony, pomegranate, clove, coptis chinenis and gallnut extracts比色测定和抗菌活性棉、丝绸和羊毛织物染色与牡丹、石榴、丁香、黄连chinenis和五倍子提取物

Materials 2009, 2, 10-21; doi:10.3390/ma2010010 OPEN ACCESS materials ISSN 1996-1944 /journal/materials Article Colorimetric Assay and Antibacterial Activity of Cotton, Silk, and Wool Fabrics Dyed with Peony, Pomegranate, Clove, Coptis chinenis and Gallnut Extracts Young-Hee Lee 1, Eun-Kyung Hwang 2 and Han-Do Kim 1,* 1 Department of Organic Material Science and Engineering, Pusan National University, Busan 609- 735, Korea. E-Mail: youngheelee@pusan.ac.kr 2 Korea Silk Research Institute, Jinju 660-904, Korea. E-Mail: pukpuck@ * Author to whom correspondence should be addressed; E-Mail: kimhd@pusan.ac.kr; Tel. +82-51-510-2410; Fax: +82-51-512-8175 Received: 28 November 2008; in revised form: 14 January 2009 / Accepted: 15 January 2009 / Published: 15 January 2009 Abstract: To investigate the antibacterial functionality of natural colorant extracts, five kinds of natural dying aqueous solutions were obtained by extraction from peony, pomegranate, clove, Coptis chinensis and gallnut using water at 90 °C for 90 min with a liquor ratio (solid natural colorant material/water, weight ratio) of 1:10. The colorimetric assay and antibacterial activity of cotton, silk, and wool fabrics dyed with these natural colorant extracts were examined. It was found that these properties were significantly dependent on the structure of colorant and the kind of fabrics. The hues (H) of all fabrics dyed with these natural colorants were in the range of 6.05YR -1.95Y. The order of value