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KMID : 1160620000050010001
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Preventive Nutrition and Food Science
2000 Volume.5 No. 1 p.1 ~ p.6
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Binding Capacity of Chitin and Chitosan to Anthocyanin Pigment Isolated from Purple Perilla Leaves
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Chang Eun-Ju
Park Sang-Won
No Hong-Kyoon
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Abstract
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The binding capacity of chitin and chitosan to anthocyanin pigmentss isolated from purple perilla leaves was inves-tigated. The pigment binding capacity increased with increasing pigment concentrations and decreasing pH without being affected by reaction temperature and particle sizes. Regression analysis revealed significantly high corre-lations between pigment binding capacity of chitin and chitosan and pigment concentration at ranges of 25-100 mg of pigment/g of sample, After 1 hr settling, release of pigment from pigmented chitin and chitosan increased with increasing pH, up to 24.9% and 17.4%, respectively, at pH 9. In general, pigment binding capacity of chitosan was higher than that of chitin. There results suggest that chitosan may be useful as a potential adsorbent capable of stabilizing anthocyanin pigment.
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KEYWORD
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anthocyanin pigment, purple perilla leaf, chitin, chitosan, adsorbents
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