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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Principal component analysis (PCA) scores plot. The PCA scores plot shows a clear segregation of Tonda di Giffoni and Romana samples, indicating that Tonda di Giffoni and Tonda Gentile Romana have different metabolic profiles.