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SCOPUS 학술저널

Effects of Various Extraction Methods on Quality Characteristics of Duck Feet Gelatin

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We determined the optimum pretreatment conditions such as pH and time for swelling duck feet and investigated the effects of the extracting method, such as water bath (WB), pressure cooker (PC), and microwave oven (MO), on quality characteristics of the duck feet gelatin for improving utilization of duck feet as a novel source of gelatin. The soaking solution of pH 1 among pH 1-14 with unit intervals was selected due to the highest yield. The quality characteristics of the gelatin tested were color, pH, gel strength, viscosity, and melting point. For the extracted gelatin with different methods, the CIE L*, a* and b* values were in the following order: MO>PC>WB (pPC>MO (pMO>WB (p< 0.05), respectively. The gelatin extracted using WB showed the highest pH and that extracted using MO showed the lowest pH (p0.05). The quality characteristic of duck feet gelatin was affected by extracting methods, and MO extraction can be one of the effective methods for duck feet gelatin.

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