Quality Characteristics of Muffins Containing Bokbunja (Rubus coreus Miquel) Powder

복분자 분말을 첨가한 머핀의 품질특성

  • Ko, Dae-Young (Dept. of Culinary and Food Service Management, Sejong University) ;
  • Hong, Ha-Young (Dept. of Culinary and Food Service Management, Sejong University)
  • 고대영 (세종대학교 조리외식경영학과) ;
  • 홍하영 (세종대학교 조리외식경영학과)
  • Received : 110105
  • Accepted : 2011.12.05
  • Published : 2011.12.31

Abstract

In this study, muffins containing Bokbunja, popularly known as a psychological activator and functional material, was made, and its preference levels and qualitative characteristics were evaluated. We measured the height and weight of muffins containing Bokbunja powder. Height decreased when the volume of Bokbunja powder increased (p<0.001). When weight was measured, there was no meaningful difference between the samples, although the Bokbunja powder-containing samples were heavier than the samples not containing Bokbunja powder. When we measured the weight and specific volume of the muffins containing Bokbunja powder, the specific volume decreased when the amount of Bokbunja powder increased (p<0.001). The moisture and pH levels of the muffins not containing Bokbunja powder were 17.04% and pH 8.59, respectively. As the volume of Bokbunja powder increased, the moisture level of Bokbunja muffin increased while the pH decreased, and there was a significant difference (p<0.001). As a result of measuring the colors of muffins, the brightness of the muffins containing Bokbunja powder decreased, and the muffins showed decreased yellowness index and increased redness. In measuring the texture of Bokbunja muffins, hardness decreased as the volume of Bokbunja power increased (p<0.001). Further, springness of the muffins decreased as the volume of Bokbunja powder increased, and there was a significant difference (p<0.001). The chewiness of the muffins not containing Bokbunja powder was higher than any other muffin sample, and there was a significant difference between the samples (p<0.001). Further, the cohesiveness of the decreased as the volume of Bokbunja powder increased (p<0.001). Bokbunja muffins showed a lower gumminess index than those not containing Bokbunja powder (p< 0.05). When the sensual qualities of the muffins were measured, the color, flavor, taste, and softness of all of the samples showed significant differences (p<0.001), and the muffins containing 8% Bokbunja powder showed the highest sensual quality indexes. When the general preference level for the muffins was measured, the muffins containing 8% Bokbunja powder showed the highest index, 7.03${\pm}$0.96. Based on this result, the ideal volume of Bokbunja powder when making muffins is 8%.

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