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Adv Food Nutr Res. 2013;68:101-24. doi: 10.1016/B978-0-12-394294-4.00006-7.

Secondary metabolite components of kiwifruit.

Author information

  • 1The New Zealand Institute for Plant & Food Research Limited, Palmerston North, New Zealand. tony.mcghie@plantandfood.co.nz

Abstract

Both green and gold kiwifruit contain high concentrations of vitamin C, and much of the "health story" of kiwifruit involves this vitamin. Kiwifruit also contain other compounds that are bioactive and beneficial to health. In this chapter, the secondary metabolite composition of kiwifruit is presented. Although there are limited compositional data for kiwifruit published in the scientific literature, the concentrations of 42 compounds have been documented. Included are compounds that are often associated with "healthfulness," such as the vitamins (A, C, E, and K), carotenoids (lutein and β-carotene), folate, and antioxidant phenolic compounds. Metabolite discovery is advancing rapidly with the introduction of "metabolomic" studies where the goal is to identify and measure the complete metabolite composition of a sample. In a metabolomic experiment using liquid chromatography and high-resolution mass spectrometry, it was possible to measure more than 500 metabolites in kiwifruit extracts. The large number of detectable metabolites present suggests that there is an abundance of kiwifruit metabolites still to be discovered. Such studies will provide a more complete understanding of the metabolite composition of kiwifruit that will lead to new and improved hypotheses as to the function and effects of kiwifruit metabolites, including their relevance to human health.

Copyright © 2013 Elsevier Inc. All rights reserved.

[PubMed - indexed for MEDLINE]
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