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Physicochemical Characteristics of Yanggaeng with Pear Juice and Dried Pear Powder Added

배즙과 배 건조분말을 첨가한 양갱의 물리화학적 특성

  • Park, Yeon-Ok (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Choi, Jin-Ho (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Choi, Jang-Jeon (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Yim, Sun-Hee (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Lee, Han-Chan (Pear Research Station, National Institute of Horticultural & Herbal Science) ;
  • Yoo, Maeng-Ja (Dept. of Hotel Culinary, Songwon College)
  • 박연옥 (국립원예특작과학원 배시험장) ;
  • 최진호 (국립원예특작과학원 배시험장) ;
  • 최장전 (국립원예특작과학원 배시험장) ;
  • 임순희 (국립원예특작과학원 배시험장) ;
  • 이한찬 (국립원예특작과학원 배시험장) ;
  • 유맹자 (송원대학교 호텔조리영양계열)
  • Received : 2011.03.15
  • Accepted : 2011.09.16
  • Published : 2011.10.30

Abstract

This study was conducted to investigate the physicochemical characteristics of yanggaeng prepared with pear juice and dried pear powder. The proximate composition and total polyphenol content, antioxidant activities, Hunter's color values, texture, sensory properties of pear yanggaeng variants [pear juice (PJ), pear juice and hot-air-dried pear powder (PJH), pear juice and freeze-dried pear powder (PJF) yanggaeng] were examined. The moisture content was highest (27.9%) in the control (C) yanggaeng, but the latter's energy and carbohydrate content were lower than in the pear yanggaeng variants. The differences between the pear yanggaeng variants were not significant.The total polyphenol content was highest in the 20.7 mg/100g PJF yanggaeng. The antioxidant activities of PJF yanggaeng were higher than those of the other pear yanggaeng varients. The Hunter color value results showed that the lightness (L) values were highest in C yanggaeng whereas the redness(a) and yellowness(b) values were highest in PJH yanggaeng. The springiness in texture was lowest in C yanggaeng and not significant in the others. The hardness and chewiness were highest in PJH and PJF yanggaeng, but adhesiveness was lowest therein. The results of the sensory test showed that PJF yanggaeng was the highest in flavor, color, taste, hardness, chewiness, and overal quality. Based on these results, it can be concluded that pear juice and freeze-dried pear powder yanggaeng has excellent physicochemical and antioxidant activities.

배즙과 배 건조분말을 이용하여 기능성 양갱을 제조하기 위하여 물대신 배즙을 넣고 배건조분말(열풍, 동결), 백앙금, 한천, 젤라틴, 소금을 첨가하여 배양갱을 제조하였다. 배양갱의 일반성분, 총 폴리페놀 함량, 항산화활성, 색도, 조직감, 관능평가를 실시한 결과는 다음과 같았다. 물을 이용한 C양갱의 수분함량은 27.9%로 가장 많았고 열량과 탄수화물 함량은 가장 적었으며, 배즙 양갱(PJ)과 배즙과 배 열풍건조분말 양갱(PJH), 배즙과 배 동결건조분말 양갱 (PJF)은 유의한 차이가 없었다. 배양갱의 총 폴리페놀 함량은 PJF양갱이 20.7 mg/100 g으로 가장 많았고 항산화 활성도 PJF 양갱이 가장 우수하였으며 PJH, PJ, C양갱 순으로 감소하였다. 배 양갱의 색도를 측정한 결과 명도(L값)는 C양갱이 다른 양갱에 비해 유의하게 증가하였으며 적색도 (a값)와 황색도(b값)는 C양갱에 비해 PJ, PJH, PJF양갱이 높았다. 배 양갱의 조직감 중 탄성은 C양갱이 가장 낮았고 다른 양갱은 큰 차이가 없었다. 경도와 씹힘성은 PJH와 PJF 양갱이 가장 높았고, 부착성은 낮았다. 배양갱의 기호도 관능평가 결과는 향기, 색깔, 맛, 경도, 씹힘성, 전반적인 품질 등 모두 PJF 양갱이 가장 높은 기호도를 보여 배즙에 배 동결건조 분말을 첨가한 양갱이 소비자의 기호에 가장 적합한 것으로 나타났다. 결론적으로 배 양갱의 제조는 합성감미료를 첨가하지 않고 배즙과 배 건조분말을 이용해 양갱의 당도와 물리적 특성을 조절하면서 배의 기능성을 향상시키는 배즙과 배 동결건조분말을 이용하여 제조하는 것이 가장 좋은 것으로 사료된다.

Keywords

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