Abstract
Background: Rosehips, the fruits of Rosa species, are well known for their various health benefits like strengthening the immune system and treating digestive disorders. Antioxidant, anti-inflammatory, and cell regenerative effects are also among their health enhancing impacts. Rosehips are rich in compounds having antioxidant properties, like vitamin C, carotenoids, and phenolics. Methods: Total polyphenol content (Folin-Ciocalteu’s method), and in vitro total antioxidant capacity (ferric-reducing ability of plasma, FRAP) in rosehips of four Rosa species (R. canina, R. gallica, R. rugosa, R. spinosissima) were determined and compared. Ripe fruits were harvested at two locations. Water and ethanolic extracts of dried fruit flesh were analyzed. Results: R. spinosissima had the highest total phenolic content and antioxidant capacity, significantly higher than the other investigated Rosa species. Both parameters were reported in decreasing order for R. spinosissima > R. canina > R. rugosa > R. gallica. Ethanolic extracts of rosehips showed higher phenolic content and antioxidant activity than water extracts. Antioxidant properties were influenced by the growing site of Rosa species. Conclusions: This study indicates that R. spinosissima exhibited the greatest phenolic and antioxidant content, and therefore can be used as a reliable source of natural antioxidants, and serve as a suitable species for further plant breeding activities. Furthermore, investigations of various Rosa species for their antioxidant properties may draw more attention to their potential as functional foods.
Highlights
The genus Rosa contains more than 100 species which are widely distributed across Europe, temperate Asia, and North America [1,2]
This study indicates that R. spinosissima exhibited the greatest phenolic and antioxidant content, and can be used as a reliable source of natural antioxidants, and serve as a suitable species for further plant breeding activities
R. was spinosissima was analyzed rosehips ranged from 150.8150.8 mg tomg
Summary
The genus Rosa contains more than 100 species which are widely distributed across Europe, temperate Asia, and North America [1,2]. Roses have been cultivated since ancient times, but some of them can still be found growing in the wild. They are climbing or bushy woody perennials with thorny stems and attractive, sweetly scented flowers of various colors [3]. The leaves have antioxidant and anti-inflammatory properties. Rosehip has traditionally been used against a wide range of ailments due to its biological activities like immunosuppressive, antioxidant, anti-inflammatory, anti-arthritic, analgesic, anti-diabetic, cardioprotective, antimicrobial, gastroprotective, and skin ameliorative effects [5,6,7,8]. The fruits of Rosa species, are well known for their various health benefits like strengthening the immune system and treating digestive disorders. Rosehips are rich in compounds having antioxidant properties, like vitamin C, carotenoids, and phenolics
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