대체당 첨가 고령자용 포도젤리의 품질 특성

Quality Characteristics of Grape Jellies with Sugar Derivative Sweeteners for the Elderly

  • 이미혜 (가톨릭대학교 식품영양학과) ;
  • 최은정 (가톨릭대학교 식품영양학과) ;
  • 오명숙 (가톨릭대학교 식품영양학과)
  • Lee, Mi-Hye (Deptartment of Food and Nutrition, The Catholic University of Korea) ;
  • Choi, Eun-Jung (Deptartment of Food and Nutrition, The Catholic University of Korea) ;
  • Oh, Myung-Suk (Deptartment of Food and Nutrition, The Catholic University of Korea)
  • 발행 : 2008.08.31

초록

This study was conducted to determine the quality characteristics of grape jellies for the elderly. The jellies contained sugar (control) or sugar derivative sweeteners (erythritol, isomaltooligosaccharide, sorbitol, and xylitol). Agar (0.31%) and $\kappa$-carrageenan (0.27%) were the gelling agents. The average age of the subjects participating in the acceptance test was 79. The lightness (L), redness (a), and yellowness (b) values of the agar gel with erythritol mostly decreased, indicating a darker and pale red color. The L and b values of the carrageenan gel with sugar derivative sweeteners increased, indicating brighter and yellowish color. The agar and carrageenan gels with sorbitol showed higher gelling and melting temperature, indicating that gelation occurred easily and did not easily melt. The agar and carrageenan gels with xylitol showed a low-melting temperature, indicating low stability with temperature change. The break-down rate of the agar and carrageenan gels with erythritol was low, whereas that of agar gel with sorbitol was relatively high despite its high melting temperature. Hardness, cohesiveness, gumminess, and chewiness of the gels with sugar derivative sweeteners decreased, and this tendency was most distinct with isomaltooligosaccharide in the agar gel and with sorbitol in the carrageenan gel. The rupture properties of the gel were the same as the hardness of the gel. Sensory acceptance of the agar gels with erythritol, sorbitol, isomaltooligosaccharide, and the carrageenan gel with erythritol was fairly high, whereas that of the agar gel with xylitol and the carrageenan gel with isomaltooligosaccharide and xylitol was low. The results show that sorbitol and erythritol are appropriate as sugar substitutes in grape jellies for the elderly about the acceptability and stability of the gels.

키워드

elderly;grape jelly;sugar derivative sweeteners;quality characteristics

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