Podravka and Slavonka Varieties of Pepper Seeds (Capsicum annuum L.) as a New Source of Highly Nutritional Edible Oil
2020
Cvetković, Tanja | Ranilović, Jasmina | Gajari, Davorka | Tomić-Obrdalj, Helena | Šubarić, Drago | Moslavac, Tihomir | Cikoš, Ana-Marija | Jokić, Stela
The aim of this study was to evaluate Croatian pepper seed varieties (Podravka and Slavonka) as a new source of added value ingredients. Pepper seed is mostly considered a by-product. For the first time, the pepper (Capsicum annuum L.) seeds of the Slavonka and Podravka varieties were examined as the source material for oil production by the two methods of extraction: cold pressing (CP) and supercritical CO₂ extraction (SC-CO₂). Further, fatty acid profile, tocopherols, and sensory analysis of the oils were examined, as well as the chemical characteristics and antioxidant potential of seed flour. The antioxidant potential of pepper seed flour was different between varieties (Podravka 107 antioxidant unit (AU); Slavonka 70 antioxidant unit (AU)). The Podravka variety pepper seed oil has shown higher γ-tocopherol content (CP 80.1 mg/100 g; SC-CO₂ extraction 65.3 mg/100 g) than the Slavonka variety (CP 65.3 mg/100 g; SC-CO₂ extraction 16.0 mg/100 g). According to the obtained results, cold pressing (CP) would be a more favourable method for pepper seed oil extraction, taking into account sensory evaluation and nutritional quality. The pepper seed oil has potential for culinary application with a nutritional quality comparable to vegetable oils of a higher price class.
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