Phytochemical characterisation of two news blood grapefruits by means of HPLC-MS

•New grapefruits with anthocyanins (blood grapefruits).•Contain all the bioactive components described for grapefruits.•Present very low content of furanocoumarins.•Good candidates to boots the consumption of grapefruit juice. In this study, the main flavanones, polymethoxyflavones, anthocyanins and...

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Bibliographic Details
Published in:Food chemistry advances 2022-10, Vol.1, p.100049, Article 100049
Main Authors: del Río, José Antonio, del Río, Yolanda, Ortuño, Ana, Conesa, Agustín, Pina, José Antonio, García-Lidón, Angel
Format: Article
Language:English
Subjects:
Anthocyanins
blood
Blood orange
Citrus grandis
Citrus maxima
Citrus sinensis
cultivars
Flavanones
food chemistry
Furanocoumarins
grapefruits
juices
naringin
oranges
Polymethoxyflavones
psoralens
secondary metabolites
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Summary:•New grapefruits with anthocyanins (blood grapefruits).•Contain all the bioactive components described for grapefruits.•Present very low content of furanocoumarins.•Good candidates to boots the consumption of grapefruit juice. In this study, the main flavanones, polymethoxyflavones, anthocyanins and furanocoumarins were evaluated in two blood grapefruits (CQP 31 and CQP 32), in their juice, peel, and leaves, by means of HPLC-DAD analysis and identified by HPLC-MS-MS. They are compared with the contents of these secondary metabolites in three commercial grapefruits: Star Ruby, Marsh, and Duncan; a blood orange, cv. Sanguinelli and with the parents of both cultivars Citrus grandis cv Azimboa and cv. Violeta de los valles. The flavonic profile in cultivars CQP 31 and CQP 32 revealed the presence of the characteristic flavanones of grapefruit, naringin being the most abundant. The ripe fruits of cultivars CQP 31 and 32 showed a red coloring due to the presence of anthocyanins with a total juice content of 145 and 136 ppm. The levels of furanocoumarins in juices of cultivar CQP 31 were well below the values quantified in Star Ruby, Marsh and Duncan. These furanocoumarins were not detected in the juice of the cultivar CQP 32. These results indicate that CQP 31 and 32 can be classified as blood grapefruits with a high content of bioactive compounds and low content or absence of furanocoumarins.
ISSN:2772-753X
2772-753X
DOI:10.1016/j.focha.2022.100049