نتایج جستجو برای: sun dryer

تعداد نتایج: 36836  

اکبری, علی, دخانی, شهرام, شاهدی, محمد, صادقی, مرتضی, همدمی, ناصر,

Sun drying is a well-known food preservation technique that reduces the moisture contents of agricultural products. Shrinkage, rehydration ability and color of food materials during air drying adversely affect the quality of the dried products. Since all fresh tomatoes can not be consumed at the time of harvest, preservation provides a larger market, allowing consumers to buy the preserved toma...

2017
James Owusu-Kwarteng Francis K K Kori Fortune Akabanda

The objective of this work was to determine the effects of blanching and two drying methods, open-sun drying and natural convection solar drying, on the quality characteristics of red pepper. A 2 × 3 factorial design with experimental factors as 2 drying methods (open-sun drying and use of solar dryer) and 3 levels of pepper blanching (unblanched, blanched in plain water, and blanched in 2% NaC...

2015
N. C. Shahi Anupama Singh A. E. Kate

Abstract—There was a scenario present day that drying of fresh fruits and vegetables by indirect solar drying by using mechanical device; hence, an effort was made to develop a small scale solar tunnel dryer (STD). Drying of spinach is carried out to analyze the performance of the dryer and to study its drying characteristics. To evaluate the performance of dryer the independent variables were ...

ژورنال: علوم آب و خاک 2009
اکبری, علی, دخانی, شهرام, شاهدی, محمد, صادقی, مرتضی, همدمی, ناصر,

Sun drying is a well-known food preservation technique that reduces the moisture contents of agricultural products. Shrinkage, rehydration ability and color of food materials during air drying adversely affect the quality of the dried products. Since all fresh tomatoes can not be consumed at the time of harvest, preservation provides a larger market, allowing consumers to buy the preserved toma...

Journal: :تحقیقات مهندسی کشاورزی 0
سعید ملک عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان محسن حیدری سلطان آبادی عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان مرتضی خان احمدی عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان حمیدرضا قزوینی عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان عادل میرمجیدی عضو هیئت علمی موسسه تحقیقات فنی و مهندسی کشاورزی کرج محمد شاهدی استاد دانشکده کشاورزی دانشگاه صنعتی اصفهان اصغر کرمانی

this study evaluated the use of the solar dryer at esfahan agricultural research center for drying prunes. a factorial experiment was carried using a randomized complete block design with four replications. the four methods used to accelerate prune drying were: control group (no treatment), mechanical perforation at one week of drying, blanching, submersion in australian cold dip method. the dr...

2008
E Kavak

Drying kinetics of sour cheery is investigated in solar dryer with forced convection and under open Sun with natural convection. Drying data were fitted to different mathematical models, whose performance was investigated by comparing coefficient (R), reduced chi-square (Ç) and root mean square error (RMSE) between the observed and predicted moisture ratios. Among these models, drying model dev...

2013
Biplab Paul

ABSTARCT: Solar drying is an integral part of rural life for various products, especially vegetable, fruits & spices which are produced in rural areas and have no scientific means of preserving such raw products. This paper is an attempt to review the solar drying process & solar dryers used for chilli drying worldwide which includes types of solar dryer, drying process & techno economical feas...

Journal: :تحقیقات مهندسی کشاورزی 0
اکبر جوکار عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس علی زمردیان دانشیار بخش ماشین آلات دانشکده کشاورزی دانشگاه شیراز ندا مفتون آزاد استادیار پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس لادن جوکار مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس

this study determined optimum conditions for drying pomegranate arils in a solar dryer. a cabinet solar dryer was used in active and mixed modes. the response surface method was employed with nine treatments (runs) and a control run (3 m/s air velocity and 2 cm in thickness) and five replications. the bryte cultivar was tested and samples were dried to approximately 10% moisture. drying time, v...

Journal: Journal of Nuts 2011
Hamid R. Ziaolhagh

The rate of agricultural and horticultural waste is high in Iran, and one of the best preventive methods is to convert fruits and crops to the products which have long shelf life and high quality. Traditionally apricots are dried in front of sun with excessive sulfuring which is proved to be harmful for human. In the current study apricots were dried by either solar tunnel dryer or conventional...

2015
R. N. Kenghe M. S. Jadhav C. A. Nimbalkar T. M Kamble

Different drying methods viz., Sun drying, shade drying and tray drying (temperature 45, 55 and 65 0C) were used for dehydration of curry (Murraya koenigii) leaves for optimal retention of color and its constituents. It was observed that the time required for tray drying was less (27%), when compared to sun and shade drying. Tray dried (550C) curry leaves had maintained nutritional constituents...

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