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논문 기본 정보

자료유형
학술저널
저자정보
Juan Carlos Contreras-Esquivel (Universidad Autonoma de Coahuila) Cristobal N. Aguilar (Universidad Autonoma de Coahuila) Julio C. Montanez (Universidad Autonoma de Coahuila) Adriano Brandelli (Universidade Federal do Rio Grande do Sul) Judith D. Espinoza-Perez (Coyotefoods Biopolymer and Biotechnology Co.) Catherine M.G.C. Renard (Institut National de la Recherche Agronomique (INRA)-Université d´Avignon)
저널정보
한국식품영양과학회 Journal of Food Science and Nutrition Journal of Food Science and Nutrition Vol.15 No.1
발행연도
2010.3
수록면
57 - 66 (10page)

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초록· 키워드

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Passion fruit fiber pectin gels represent a new alternative pectin source with potential for food and non-food applications on a commercial scale. Pectic polysaccharides were extracted from passion fruit (Passiflora edulis) fiber using citric acid as a clean catalyst and autoclaved for 20 to 60 min at 121℃. The best condition of pectin yield with the highest molecular weight was obtained with 1.0% of citric acid (250 ㎎/g dry passion fruit fiber pectin) for 20 min of autoclaving. Spectroscopic analyses by Fourier transform infrared, enzymatic degradation reactions, and ion-exchange chromatography assays showed that passion fruit pectin extracted for 20 min was homogeneous high methoxylated pectin (70%). Gel permeation analysis confirmed that the pectin extract obtained by autoclaving by 20 min showed higher molecular weights than those autoclaved for 40 and 60 min. Passion fruit pectin extracted for 20 min was enzymatically modified with fungal pectinmethylesterase to create restructured gels. Short autoclave treatment (20 min) with citric acid as extractant resulted in a significant increase of gel strength, improving pectin extraction in terms of functionality. The treatment of solubilized material (pectic polysaccharides) in the presence of insoluble material (cellulose and hemicellulose) with pectinmethylesterase and calcium led to the creation of a stiffer passion fruit fiber pectin gel, while syneresis was not observed.

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Abstract
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISUSSION
ACKNOWLEDGEMENTS
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2010-511-002141929