Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Physical Properties of Mixed ${\kappa}/{\lamda}$- and ${\kappa}/{\iota}$-carrageenan Films

(${\kappa}/{\lambda}$ 및 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 물성

  • Han, Yun-Jeong (Department of Food Science and Nutrition, The Catholic University of Korea) ;
  • Kim, Suk-Shin (Department of Food Science and Nutrition, The Catholic University of Korea)
  • 한윤정 (가톨릭대학교 식품영양학과) ;
  • 김석신 (가톨릭대학교 식품영양학과)
  • Published : 2008.02.28
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Abstract

The physical properties of ${\kappa}/{\lamda}$- and ${\kappa}/{\iota}$-carrageenan films, mixed with ${\lamda}$- or ${\iota}$-carrageenan (${\kappa}:{\lamda}$ or ${\kappa}:{\iota}$ = 2:1, 1.5:1.5, 1.2:1.8) and with polyethylene glycol, were compared to those of ${\kappa}$-, ${\lamda}$-, or ${\iota}$-carrageenan films. The tensile strengths of the ${\kappa}/{\lamda}$- and ${\kappa}/{\iota}$-carrageenan films decreased with increasing mixing ratios of ${\kappa}/{\lamda}$- or ${\kappa}/{\iota}$-carrageenan, respectively, and were lower than those of the ${\lamda}$- and ${\iota}$-carrageenan films. The elongations and water vapor permeabilities of the ${\kappa}/{\lamda}$- and ${\kappa}/{\iota}$-carrageenan films increased with increasing mixing ratios of ${\lamda}$- and ${\iota}$-carrageenan, respectively, and were higher than those of the ${\lamda}$- or ${\iota}$-carrageenan films.

${\kappa}$-Carrageenan에 ${\lambda}$-carrageenan 또는 ${\iota}$-carrageenan을 일정 비율 (${\kappa}:{\lambda}$ 또는 ${\kappa}:{\iota}$ = 2:1, 1.5:1.5, 1.2:1.8)로 가하고 동일한 양의 PEG를 첨가하여 제조한 ${\kappa}/{\lambda}$-carrageenan 혼합 필름과 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 물성을 ${\kappa}$-carrageenan, ${\lambda}$-carrageenan 또는 ${\iota}$-carrageenan에 PEG를 첨가하여 제조한 단독 필름들의 물성과 비교하였다. ${\kappa}/{\lambda}$-Carrageenan 혼합 필름 또는 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 인장강도는 ${\lambda}$-carrageenan 또는 ${\iota}$-carrageenan의 혼합비율이 증가할 수록 감소하였으며, 혼합 필름의 인장강도는 각각의 단독 필름들의 인장강도보다 낮았으며, ${\kappa}/{\lambda}$-carrageenan 혼합 필름의 인장강도가 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 인장강도보다 높았다. ${\kappa}/{\lambda}$-Carrageenan 혼합 필름 또는 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 신장률과 수증기투과도는 ${\lambda}$-carrageenan 또는 ${\iota}$-carrageenan의 혼합비율이 증가할수록 증가하였으며, 혼합 필름의 신장률과 수증기투과도는 각각의 단독 필름들의 신장률과 수증기투과도보다 높았으며, ${\kappa}/{\lambda}$-carrageenan 혼합 필름의 신장률과 수증기투과도가 ${\kappa}/{\iota}$-carrageenan 혼합 필름의 신장률과 수증기투과도보다 높았다.

Keywords

References

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