A comparative study of the content of some antioxidants in the fruits of autochthonous pomegranate varieties
Journal
Agro-knowledge Journal, vol. 23, no. 4, 2022, 221-228
Date Issued
2022
Author(s)
Abstract
The contents of total phenolics, anthocyanins, flavan-3-ols, and the fruit
antioxidant activity of 9 pomegranate varieties (‘Zumnarija’, ‘Bejnarija’, ‘Valandovska
kisela’, ‘Valandovska kiselo-slatka’, ‘Hidjas’, ‘Kisela’, ‘Karamustafa’, ‘Lifanka’,
and ‘Ropkavec’) were examined. Autochthonous pomegranate varieties contained
4354.4 – 6480.9 mg/kg FW total phenols, 160 – 698.2 mg/kg FW anthocyanins,
96.9 – 157.2 mg/kg FW flavan-3-ols, and high antioxidant activity of fruits (71.2
– 92.5% inhibition). The ‘Valandovska kisela’ variety had the highest content of
total phenolics (6480.87 mg/kg FW), flavan-3-ols (157.190 mg/kg FW) and
higher fruit antioxidant activity (92.5% inhibition) compared to the standard
‘Karamustafa’ variety and the other autochthonous varieties. The ‘Hidjas’ variety
had the highest content of anthocyanins (698.20 mg/kg FW). A positive
correlation (0.9815) was found between the content of total phenolics and the
fruit antioxidant activity. A moderate positive, insignificant correlation was also
found between the content of flavan-3-ols and anthocyanins.
Key words: Autochthonous pomegranate varieties, Total phenolics,
Anthocyanins, Flavan-3-ols, Antioxidant activity.
antioxidant activity of 9 pomegranate varieties (‘Zumnarija’, ‘Bejnarija’, ‘Valandovska
kisela’, ‘Valandovska kiselo-slatka’, ‘Hidjas’, ‘Kisela’, ‘Karamustafa’, ‘Lifanka’,
and ‘Ropkavec’) were examined. Autochthonous pomegranate varieties contained
4354.4 – 6480.9 mg/kg FW total phenols, 160 – 698.2 mg/kg FW anthocyanins,
96.9 – 157.2 mg/kg FW flavan-3-ols, and high antioxidant activity of fruits (71.2
– 92.5% inhibition). The ‘Valandovska kisela’ variety had the highest content of
total phenolics (6480.87 mg/kg FW), flavan-3-ols (157.190 mg/kg FW) and
higher fruit antioxidant activity (92.5% inhibition) compared to the standard
‘Karamustafa’ variety and the other autochthonous varieties. The ‘Hidjas’ variety
had the highest content of anthocyanins (698.20 mg/kg FW). A positive
correlation (0.9815) was found between the content of total phenolics and the
fruit antioxidant activity. A moderate positive, insignificant correlation was also
found between the content of flavan-3-ols and anthocyanins.
Key words: Autochthonous pomegranate varieties, Total phenolics,
Anthocyanins, Flavan-3-ols, Antioxidant activity.
Subjects
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