کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10679765 1013159 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oxygen Diffusivity in Avocado Fruit Tissue
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Oxygen Diffusivity in Avocado Fruit Tissue
چکیده انگلیسی
The oxygen mass diffusion coefficient in pre-climacteric 'Hass' avocado fruits tissue at 20 °C was evaluated. A respiration-diffusion model was developed by using a non-steady-state mass balance routine, in combination with the second law of Fick and the Michaelis-Menten enzymatic kinetic theory. Diffusivity was determined by simulation trials where a set of quantities for this parameter was proposed during the model solution, until a predicted O2 partial pressure below the skin agreed with experimental information; the resulting value was 2·2×10−9 m2 s−1. The effect of the diffusion on the respiration parameters is discussed. Oxygen internal concentration profiles were used to suggest a minimal permissible coating permeance for an adequate fruit modified atmosphere storage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosystems Engineering - Volume 92, Issue 2, October 2005, Pages 197-206
نویسندگان
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