Differentiation of maturity and quality of fruit using noninvasive extractive electrospray ionization quadrupole time-of-flight mass spectrometry

Huanwen Chen, Yanping Sun, Arno Wortmann, Haiwei Gu, Renato Zenobi

Research output: Contribution to journalArticle

102 Scopus citations


Maturity is an essential factor that determines storage-life and final quality of most fruits and vegetables. Maturity monitoring is thus of paramount importance for postharvest handling and fruit quality regulation. Ideal analytical procedures for maturity investigation require high sensitivity, specificity, and high throughput and should be noninvasive. For the purpose of maturity differentiation, extractive electrospray ionization quadrupole time-of-flight mass spectrometry (EESI-QTOF-MS) is developed for rapid fingerprinting of compounds released from various fruits. Ripening stages of bananas, grapes, and strawberries are successfully differentiated by performing principal component analysis (PCA) of the mass spectral finger-prints of the fruits. Methodological reproducibility was also evaluated experimentally and in terms of PCA clusters. The data indicate that EESI-QTOF-MS is a useful noninvasive tool for rapid investigation and differentiation of maturity and quality of fruits without sample preparation.

Original languageEnglish (US)
Pages (from-to)1447-1455
Number of pages9
JournalAnalytical Chemistry
Issue number4
StatePublished - Feb 15 2007
Externally publishedYes


ASJC Scopus subject areas

  • Analytical Chemistry

Cite this