Renewable Energy, Vol.16, No.1, 789-794, 1999
Crop drying programme in Turkey
The present status of agricultural crop drying practices in Turkey is investigated in this study. The emphasis of drying on market value, annual production and export values of some commercially important crops is given in a broad perspective. In the recent years, developing international market conditions in Europe, Middle East, and Central Asia has been encouraging to Turkey's fresh and dry agricultural crop export due to the rapidly increasing internal and external market demands. Grapes, apricots, black tea, figs, red pepper, and medicinal and aromatic plants are the major exported agricultural crops, contributing annually 35 to 40 (sic) of USD$ to Turkey's economics. From the view point of dried crop quality, drying of special crops are still an important topic for the agricultural sector. Traditionally used drying methods have many drawbacks. High air temperatures and relative humidity during the drying season promote the insect and mold development in harvested crops. Furthermore, the intensive solar radiation causes several quality reductions like vitamin losses or color changes in dried crops. Thus. the conventional drying methods do not meet the particular requirements of the related standards. To overcome these problems, producers should be made aware of the fact that the high quality of dried products can be sold to three or four fold prices and directed to the dryer investments. Moreover, the introduction of low cost and locally manufactured dryer offers a promising alternative to reduce the excessive postharvest losses and also improve the economical situation of the farmers.