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KMID : 1011620080240060876
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Korean Journal of Food and Cookey Science
2008 Volume.24 No. 6 p.876 ~ p.881
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Quality Characteristics and Antioxidant Activities of Green Tea Garlic Paste added Calcium
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손찬욱:Son Chan-Wok
전미라:Jeon Mi-Ra/김민희:Kim Min-Hee/김미리:Kim Mee-Ree
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Abstract
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The aim of this study was to evaluate the quality characteristics and antioxidant activities of green tea garlic paste added calcium. Garlic was heated with green tea and charcoal at high temperature (120°C) and high pressure (1.5 kgf/cm2) for 20 min, and then added several calcium sources (calcium carbonate, calcium citrate, calcium lactate, mixed calcium, calcium powder). Calcium carbonate, mixed calcium or calcium powder significantly increased pH of green tea garlic paste (p<0.05). All kinds of calcium sources significantly increased the viscosity of green tea garlic paste (p<0.05). Solid soluble content of green tea garlic paste was increased only in calcium citrate and calcium powder groups. Lightness, redness and yellowness of green tea garlic paste with calcium were increased, compared with control group (green tea garlic paste without calcium). The antioxidant activities by DPPH and hydroxy! radical scavenging activity of green tea garlic paste added calcium citrate, calcium lactate or calcium carbonate group were much higher than those of the other control groups. The garlic odor and garlic taste by sensory test were significantly weaker in calcium carbonate or calcium citrate group (p<0.05). Based on these results, it was suggested that calcium carbonate or calcium citrate is appropriate material for deodorizing and fortifying agent for green tea garlic paste.
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KEYWORD
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green tea garlic paste, calcium, quality, antioxidant activity
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