Abstract

Our research was aimed at assessing the effect of accumulation of carotenoids, polyphenols, vitamin C and ripening stage in the rosehip fruits of two species—Rosa canina, Rosa rugosa and two cultivar—Rosa rugosa ‘Rubra’ and Rosa rugosa ‘Alba’. The amounts of carotenoids, polyphenols and vitamin C were determined using the high-performance liquid chromatography (HPLC) method. The obtained results showed that the significantly highest amount (107.15 mg 100 g−1) of total carotenoid was determined in the fruits of Rosa canina at ripening Stage V. While results indicated that significant amount of total polyphenols were established at Stages I and II in the Rosa Rugosa ‘Alba’ and Rosa rugosa ‘Rubra’ cultivars (110.34 mg 100 g−1, 107.88 mg 100 g−1 and 103.20 mg 100 g−1 103.39 mg 100 g−1). At ripening Stage I, in the fruits of Rosa rugosa the greatest increases were established in the contents of vitamin C (3036.08 mg 100 g−1).

Highlights

  • Recent developments in the fields of health and food have encourage renewed interest in natural antioxidant compounds

  • The health benefits of rosehip can be primarily attributed to their high concentration of natural antioxidants such as phenolic compounds, vitamin C and carotenoids

  • The purpose of this research was to investigate the effect of ripening of two rosehip fruit species and two cultivars on the contents of carotenoids, polyphenols, and vitamin C grown under organic management system

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Summary

Introduction

Recent developments in the fields of health and food have encourage renewed interest in natural antioxidant compounds. In an effort to find plants that produce antioxidants, of particular interest are the fruits of the rose plant (Rosa spp.), which have long been used as a raw material for medicines, vitamins, and food. The fruits of rose plants (Rosa spp.) have been discovered to be rich in polyphenols (triterpene acids, flavonoids, proanthocyanidins, catechin), vitamin A, C and. The health benefits of rosehip can be primarily attributed to their high concentration of natural antioxidants such as phenolic compounds, vitamin C and carotenoids. Rosehips had more recently attracted attention because of their potential health benefits, there was little information about the changes of antioxidants properties that occur during the maturity especially in Rosa rugosa, Rosa rugosa ‘Alba’, Rosa rugosa ‘Rubra’

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