Application of seed equilibrium moisture curves in agro physics
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 388
فایل این مقاله در 11 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJABBR-1-9_011
تاریخ نمایه سازی: 26 اسفند 1394
چکیده مقاله:
The water relations play a fundamental role in seed comprehension of biology. In order to describe the process of drying and the effect on water activity, which controls biological change in storage, a sound knowledge of the relationship between equilibrium moisture content (EMC) and wateractivity/equilibrium relative humidity (ERH) is essential. The relationship between the total moisture content and water activity of the food, over a range of values, at a constant temperature and under equilibrium conditions, yields a moisture sorption isotherm when expressed graphically. This isothermcurve can be obtained in one of two ways; adsorption or desorption. The establishment and the mathematical description of the moisture sorption isotherms could help the food engineers to design these processing equipments. Here there are many researches on seeds of plant and some foods. In allresearches seeds or foods has one or more mathematical models for describing of the moisture sorption isotherms. However, in all seeds or foods the equilibrium moisture contents increased with an increase in the water activity at any particular temperature and decreased with increase in temperature at constant water activity. The researches have suggested that the water potential of the seed or seed structuresprovides a better indicator of the seed water status than water content.
کلیدواژه ها:
نویسندگان
Morad Shaban
Young researchers club, Boroujed branch, Islamic Azad University, Boroujerd, Iran