1, 1,6-Trimethyl-1,2-dihydronaphthalene (TDN): A Possible Degradation Product of Lutein and beta-Carotene

  • J. Marais Nietvoorbij Institute for Viticulture and Oenology, Stellenbosch
DOI: https://doi.org/10.21548/13-1-2200

Abstract

Lutein and beta-carotene were heated in H2S04 and ethanol/tartaric acid media adjusted to pH 1 and 3, respectively. Various products were formed, but 1,1,6-trimethyl-1,2-dihydronaphthalene (TDN), responsible for the kerosene-like flavour of aged Weisser Riesling wines, derived from lutein only.

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Published
2017-05-04
Issue
Vol. 13 No. 1 (1992)
Section
Articles

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