Abstract
Pumpkins are often used as a fodder component and food due to their high nutritional value and share of bioactive components (e.g., carotenoids, polyunsaturated fatty acid (PUFAs)). Due to their high moisture content, they must be preserved; drying is still the most popular method. Our work aimed to assess the optimal drying temperature to keep the best possible nutritional value of the raw material. For this purpose, pumpkin was dried at 40 °C, 60 °C and 80 °C. Then, the proximate composition, carotenoid content, fatty acids, and antioxidant properties were determined. The results indicate that the carotenoids were relatively stable up to 60 °C and then decreased sharply. Furthermore, antioxidant activity was the highest at 40 °C and 60 °C. However, in the case of PUFA content, drying at 80 °C was the most effective, probably due to the shorter exposure time to the stimulus.
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