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Physiochemical and Physical characteristics of juak with acaiberry(Euterpe oleracea Mart.)

아사이베리(Euterpe oleracea Mart.)를 첨가한 전통주악의 이화학적·물리적 품질특성

  • Hwang, Su Young (Faculty of Food Service and Technology, Catholic University of Daegu) ;
  • Park, Geum Soon (Faculty of Food Service and Technology, Catholic University of Daegu)
  • 황수영 (대구가톨릭대학교 생명식품학부) ;
  • 박금순 (대구가톨릭대학교 생명식품학부)
  • Received : 2013.06.10
  • Accepted : 2013.10.30
  • Published : 2013.12.31

Abstract

Acaiberry(Euterpe oleracea Mart.) was partially substituted from the formula for juak and the subsequent effects on the physiochemical and physical characteristics. And this study was carried out to standardize the recipe of acaiberry-juak. Acaiberry powder was added in 0(control), 1, 3 and 5% substitution ratios by weight per glutinous rice flour. Also, acaiberry puree was added in 3, 6 and 9% substitution ratios by weight water. The moisture contents showed juak with addition of acaiberry contents were lower then control. The diameter of the juak decreased with increasing levels of the added acaiberry powder and puree, whereas the height increased with increasing amount of the powder and puree. The Hunter colorimeteric L-values of the dough and acaiberry-juak decreased as the amount of acaiberry powder and puree increased. Hunter a and b-values both increased with increasing levels of the acaiberry powder and puree. Textural characteristics there were increase in hardness, springiness, chewiness as the amount of acaiberry powder and puree increased(p<.001). Cohesiveness were not significantly different as the level of acaiberry powder and puree increased(p<.001). The anti-oxidant capacity results, anthocyanin, DPPH radical scavenging activity, SOD-like activity, Nitrate-scavenging ability tended to increased by according to the addition acaiberry powder and puree(p<.001). As measured DSC, the onset temperature and enthalpy were accordingly increased during storage period as the acaiberry contents were higher then control. According to sensory evaluation results, the after swallowing, appearance, flavor, taste and texture of juak was acaiberry powder 1% and acaiberry puree 6% proper score is recorded. Overall acceptability of acaiberry juak powder 1%, puree 6% percent of the additives are also the highest mark in the sensory characteristics. Also aciberry powder addition of more than demonstrate a good reputation in the development juak will suggest more appropriate form of puree.

Keywords

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