Seed Lipid Composition of New Hybrids of Styrian Oil Pumpkin Grown in Poland
Małgorzata Tańska | Dorota Ogrodowska | Grzegorz Bartoszewski | Aleksandra Korzeniewska | Iwona Konopka
Styrian hull-less pumpkins are valued for their use in health-promoting foods such as oils and snacks. Although deriving from Styria, they are now cultivated globally. Seeds of Styrian oil pumpkins are rich in lipids and represent a high-value product. Thus, seed yield and quality are traits of economic importance. These seed characteristics depend mostly on the cultivated variety and plant growing conditions. This study aimed to assess the variation in hull-less seed lipids of new hybrids of Styrian oil pumpkin developed recently for cultivation in moderate/colder climate zones of the north-eastern part of Poland. The study showed that the newly-developed hybrids have a relatively high content of total lipids in seeds, with a substantially higher share of linoleic acid (up to 63%). However, sterols, tocopherols, and squalene content and composition were similar to pumpkin seed oils produced from plants cultivated in other, warmer regions. This study provides insights into the chemical composition of Styrian pumpkin oil produced from hybrids grown under the relatively severe climatic conditions of north-eastern Poland.
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