Journal
NATURAL PRODUCT RESEARCH
Volume -, Issue -, Pages -Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2023.2245535
Keywords
White lupin; legumes; polyphenols; ellagic acid; LC-HRMS
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This study examined the polyphenol contents in white lupin samples cultivated in Southern Italy using a LC-HRMS method. The results showed that ellagic acid and apigenin were the most abundant polyphenols. The study also found that the cultivation area had a significant influence on the polyphenol contents. This work provides the first data on the polyphenol contents of white lupins cultivated in Italy.
In this work we examined the contents of 14 polyphenols in white lupin (Lupinus albus L.) samples cultivated in Southern Italy by the optimisation and validation of a LC-HRMS method. The validation of the LC-HRMS method showed linearity results r(2) > 0.989 and recovery values between 71 and 119% for a very wide range of concentrations. Ellagic acid was the most abundant polyphenol, with mean concentrations of 16271.86 +/- 19798.53 mu g/Kg, followed by apigenin (2749.51 +/- 889.95 mu g/Kg). A significant variability in ellagic acid contents was found between the areas of cultivation examined (p < 0.05). As far as we know, this work provides the first data on the polyphenols contents of white lupins cultivated in Italy. The comparison with other study confirms the role of the cultivation area for the determination of the polyphenol's contents. The study also confirms white lupins as a promising source of antioxidant and anti-inflammatory substances in a balanced diet.
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