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http://dx.doi.org/10.9724/kfcs.2012.28.4.479

Quality Characteristics and Antioxidant Activities of Chocolate Added with Mulberry Pomace  

Hwang, Mee-Hyun (Department of Food & Nutrition, Chungnam National University)
Jeon, Hye-Lyun (Department of Food & Nutrition, Chungnam National University)
Kim, Hyung-Don (Department of Herbal Crop Research, NIHHS, RDA)
Lee, Sang-Won (Department of Herbal Crop Research, NIHHS, RDA)
Kim, Mee-Ree (Department of Food & Nutrition, Chungnam National University)
Publication Information
Korean journal of food and cookery science / v.28, no.4, 2012 , pp. 479-487 More about this Journal
Abstract
Mulberry pomace, a by-product obtained from mulberry juice, has not been utilized as a food material for food processing. In this study, the quality characteristics and antioxidant activities of chocolate to which mulberry pomace has been added were evaluated. Freeze-dried mulberry pomace was added to white chocolate at the level of 0, 0.5, 1.5 or 2.5%, and then the white chocolate ganache was put between two layers of dark chocolate. The moisture content and sweetness were not significantly different among treatments, but reducing sugar content was increased, according to the amount of mulberry pomace powder. The Hunter color L(lightness) and b(yellowness) values decreased, according to the mulberry pomace powder amount, whereas the a(redness) increased. The hardness increased according to the mulberry pomace powder amount. Total phenol and flavonoid contents increased, according to the mulberry pomace powder amount. Antioxidant activities(DPPH and hydroxyl radical scavenging activities) also increased, according to the mulberry pomace powder amount. The result of the sensory intensity test revealed that the scores of color, mulberry taste, hardness and chewiness were the highest in the 2.5% mulberry pomace powder added chocolate. Sensory preference test results showed that chocolate added with 1.5% mulberry pomace powder had the highest scores in color, flavor, taste, texture and overall preference. It is suggested that chocolate to which mulberry pomace powder has been added may be a functional chocolate, with high antioxidant activity.
Keywords
Mulberry pomace powder; chocolate; quality; total phenol; antioxidant activity;
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Times Cited By KSCI : 15  (Citation Analysis)
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