Profiling Phenolic Composition in Pomegranate Peel From Nine Selected Cultivars Using UHPLC-QTOF-MS and UPLC-QQQ-MS
Guowei Man, Lei Xu, Yongtao Wang, Xiaojun Liao, Zhenzhen Xu
Frontiers in Nutrition
Abstract
Pomegranate is widely cultivated across China, and the phenolics in its peel are principal components associated with health benefits. Ultra-high performance liquid chromatography coupled to a quadrupole time-of-flight mass spectrometer (UHPLC-QTOF-MS) and ultra-performance liquid chromatography coupled to a triple quadrupole mass spectrometer (UPLC-QQQ-MS) were used in this study, aiming at profiling the total phenolic composition in pomegranate peel from nine selected cultivars in 7 production areas. Sixty-four phenolic compounds were identified or annotated, and 23 of them were firstly reported in pomegranate peel. Principal component analysis (PCA) plots show differences and similarities of phenolics among nine cultivars. Furthermore, 15 phenolic compounds were quantified with the standards, and punicalagin, ellagic acid, gallocatechin, punicalin, catechin, and corilagin were found to be dominant. Punicalagin weighed the highest content (28.03-104.14 mg/g). This study can provide a deeper and more detailed insight into the phenolic composition in pomegranate peel and facilitate the health-promoting utilization of phenolics.
Extracted Claims
3 claims extracted from this paper into the knowledge graph
punicalagin weighed the highest content pomegranate peel
“Punicalagin weighed the highest content (28.03-104.14 mg/g).”
phenolic compounds identified or annotated pomegranate peel
“Sixty-four phenolic compounds were identified or annotated, and 23 of them were firstly reported in pomegranate peel.”
ellagic acid, gallocatechin, punicalin, catechin, corilagin found to be dominant pomegranate peel
“punicalagin, ellagic acid, gallocatechin, punicalin, catechin, and corilagin were found to be dominant.”