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Tocopherols in rose hips ( Rosa spp.) during ripening

2012; Wiley; Volume: 92; Issue: 10 Linguagem: Inglês

10.1002/jsfa.5594

1097-0010

Staffan Andersson, Marie Olsson, Karl‐Erik Gustavsson, Eva Johansson, Kimmo Rumpunen,

Phytochemicals and Antioxidant Activities

Rose hips are used as a food ingredient and in health products. They are rich in various bioactive compounds such as carotenoids and vitamin C, but data on their vitamin E content (tocopherols and tocotrienols) are limited. In this study, four different species of Rosa were analysed for tocopherol and tocotrienol content during ripening in three different years.Only α- and γ-tocopherol were found in the fleshy parts of the rose hips, and the tocopherol content and vitamin E activity varied depending on date of harvesting, species and year. The amount of vitamin E activity differed between species of Rosa and years, whereas the changes during ripening were relatively small.The choice of species must be considered if tocopherol content is to be optimised when rose hips are used as a food ingredient.