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Mohamed Ahmed, Isam A.; Uslu, Nurhan; Musa Özcan, Mehmet; AL Juhaimi, Fahad; Ghafoor, Kashif; Babiker, Elfadıl E.; Osman, Magdi A.; Alqah, Hesham A.S.
Food chemistry, 02/2021, Volume: 338Journal Article
•Effects of oven roasting on the quality attributes of sesame seeds of different origins were evaluated.•Roasting increased oil, antioxidants, and total phenol contents of sesame seeds.•Roasting enhanced the tocopherol contents and reduced oils’ oxidative stability.•Both roasting conditions and seed origins influenced the seed and oil quality. The impacts of conventional oven roasting at different temperatures and for different times on the physicochemical attributes of sesame seeds obtained from different regions was assessed. The color characteristics (a*, b*, and L* values), ash, moisture, protein, oil, total phenolic, and antioxidant activity of raw sesame seeds and the peroxide value, p-anisidine, fatty acids, and tocopherols of sesame oil varied with source. Oven roasting temperature and time significantly affected the physicochemical properties and bioactive components of sesame seeds and the oil quality from different countries. Roasting variably increased the a* value, antioxidant activity, protein, oil, total phenolic, and tocopherol content, and p-anisidine and peroxide values, whereas it reduced b* and L* values, moisture, and linolenic acid content of sesame seeds from different countries. Roasting conditions and growing locations affected the physiochemical composition and bioactive compounds of seeds. Such factors can influence the quality attributes of sesame seeds and oil and should be considered during processing.
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