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Phenol Profiling and Nutraceutical Potential of Lycium spp. Leaf Extracts Obtained with Ultrasound and Microwave Assisted Techniques

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Phenol Profiling and Nutraceutical Potential of Lycium spp. Leaf Extracts Obtained with Ultrasound and Microwave Assisted Techniques

dc.contributor.author	Pollini, Luna
dc.contributor.author	Rocchi, Rachele
dc.contributor.author	Cossignani, Lina
dc.contributor.author	Mañes Vinuesa, Jordi
dc.contributor.author	Compagnone, Dario
dc.contributor.author	Blasi, Francesca
dc.date.accessioned	2019-09-05T06:37:27Z
dc.date.available	2019-09-05T06:37:27Z
dc.date.issued	2019
dc.identifier.citation	Pollini, Luna Rocchi, Rachele Cossignani, Lina Mañes Vinuesa, Jordi Compagnone, Dario Blasi, Francesca 2019 Phenol Profiling and Nutraceutical Potential of Lycium spp. Leaf Extracts Obtained with Ultrasound and Microwave Assisted Techniques Antioxidants 2019 8 260-1 260-15
dc.identifier.uri	https://hdl.handle.net/10550/71339
dc.description.abstract	In recent years, agricultural and industrial residues have attracted a lot of interest in the recovery of phytochemicals used in the food, pharmaceutical, and cosmetic industries. In this paper, a study on the recovery of phenol compounds from Lycium spp. leaves is presented. Ultrasound‐assisted extraction (UAE) and microwave‐assisted extraction (MAE) have been used with alcoholic and hydroalcoholic solvents. Methanolic UAE was the most successful technique for extracting phenols from Lycium leaves, and we used on leaves from L. barbarum and L. chinense cultivated in Italy. The extracts were then characterized as regards to the antioxidant properties by in vitro assays and the phenol profiling by a high performance liquid chromatography‐diode array detector (HPLC‐DAD). Chlorogenic acid and rutin were the main phenol compounds, but considerable differences have been observed between the samples of the two Lycium species. For example, cryptochlorogenic acid was found only in L. barbarum samples, while quercetin‐3‐O‐rutinoside‐7‐O‐glucoside and quercetin‐3‐O‐sophoroside‐7‐O‐rhamnoside only in L. chinense leaves. Finally, multivariate statistical analysis techniques applied to the phenol content allowed us to differentiate samples from different Lycium spp. The results of this study confirm that the extraction is a crucial step in the analytical procedure and show that Lycium leaves represent an interesting source of antioxidant compounds, with potential use in the nutraceutical field.
dc.language.iso	eng
dc.relation.ispartof	Antioxidants, 2019, vol. 2019, num. 8, p. 260-1-260-15
dc.subject	Alimentació
dc.title	Phenol Profiling and Nutraceutical Potential of Lycium spp. Leaf Extracts Obtained with Ultrasound and Microwave Assisted Techniques
dc.type	journal article	es_ES
dc.date.updated	2019-09-05T06:37:28Z
dc.identifier.idgrec	133720
dc.rights.accessRights	open access	es_ES