Articles
Effect of different growing districts on the quality and functional components of the edible rose ‘Yves Piaget’
Article number
1434_47
Pages
335 – 342
Language
English
Abstract
Rose (Rosa hybrida) is one of the most important ornamental plants.
Recently, it has been used as an edible flower, not only for its color and fragrance, but also for its antioxidant activity due to phytochemicals such as polyphenols.
Rose cut flowers are mainly grown in greenhouses, and it is known that not only growth but also phytochemicals are affected by environmental conditions such as temperature and light.
In this study, the growth, quality and functional components, and antioxidant activity of fresh petals of the aromatic cut rose cultivar Yves Piaget were investigated in different growing districts (Yamagata, Nagano, Tochigi, Chiba, Kanagawa and Aichi prefectures) in order to improve the use value of roses as edible flowers.
Sugar content ranged from 5.7 to 8.4%, titratable acidity from 0.3 to 0.7% and nitrate nitrogen content from 36.8 to 16.3 mg g 1 FW, with variation depending on the growing district.
Ascorbic acid (AsA) content was significantly higher in rose grown in Kanagawa Pref. than in the other five districts.
Total tannin content tended to be higher in rose grown in Tochigi, Kanagawa and Aichi Pref.
There was no significant difference in total polyphenol content between the different growing districts.
On the other hand, DPPH radical scavenging activity tended to be higher in rose grown in Aichi, Chiba and Yamagata pref.
These results indicate that the nitrate nitrogen content, AsA content and total tannin content of Yves Piaget petals increased with increasing average temperature in the growing district.
However, other quality and functional components did not correlate with temperature, suggesting that other factors had an influence.
Recently, it has been used as an edible flower, not only for its color and fragrance, but also for its antioxidant activity due to phytochemicals such as polyphenols.
Rose cut flowers are mainly grown in greenhouses, and it is known that not only growth but also phytochemicals are affected by environmental conditions such as temperature and light.
In this study, the growth, quality and functional components, and antioxidant activity of fresh petals of the aromatic cut rose cultivar Yves Piaget were investigated in different growing districts (Yamagata, Nagano, Tochigi, Chiba, Kanagawa and Aichi prefectures) in order to improve the use value of roses as edible flowers.
Sugar content ranged from 5.7 to 8.4%, titratable acidity from 0.3 to 0.7% and nitrate nitrogen content from 36.8 to 16.3 mg g 1 FW, with variation depending on the growing district.
Ascorbic acid (AsA) content was significantly higher in rose grown in Kanagawa Pref. than in the other five districts.
Total tannin content tended to be higher in rose grown in Tochigi, Kanagawa and Aichi Pref.
There was no significant difference in total polyphenol content between the different growing districts.
On the other hand, DPPH radical scavenging activity tended to be higher in rose grown in Aichi, Chiba and Yamagata pref.
These results indicate that the nitrate nitrogen content, AsA content and total tannin content of Yves Piaget petals increased with increasing average temperature in the growing district.
However, other quality and functional components did not correlate with temperature, suggesting that other factors had an influence.
Authors
H. Ikeura, F. Ito, R. Kimura
Keywords
edible flower, functional component, rose, quality, Yves Piaget
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