کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4565078 1330959 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Water sorption isotherms for lemon peel at different temperatures and isosteric heats
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Water sorption isotherms for lemon peel at different temperatures and isosteric heats
چکیده انگلیسی

Lemon peel constitutes a potential source of dietary fiber to formulate new and healthier products, as well as a source of essential oils. The relationship between moisture content and water activity provides useful information for lemon peel processing, especially for drying and storage. Water sorption isotherms of lemon peel were obtained using a standardized conductivity hygrometer at four different temperatures (20, 30, 40 and 50 °C) and wide ranges of moisture content (5.381–0.002 kg water/kg dry solid) and water activity (0.984–0.106). One theoretical (GAB) and four empirical equations (Oswin, Henderson, Halsey and Ratti) were used for modelling sorption isotherms. After evaluating the models according to several criteria, the GAB model appeared as the best option. Isosteric heats of sorption were assessed from experimental sorption isotherm data using different methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 41, Issue 1, January 2008, Pages 18–25
نویسندگان
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