Int. J. Mol. Sci. 2007, 8(9), 989-1000; doi:10.3390/i8090989
Article

Relationships between Xanthohumol and Polyphenol Content in Hop Leaves and Hop Cones with Regard to Water Supply and Cultivar

1 Slovenian Institute for Hop Research and Brewing, Žalskega tabora 2, SI-3310 Žalec, Slovenia 2 Chair of Chemisty, Department of Food Science and Technology,, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
* Author to whom correspondence should be addressed.
Received: 30 May 2007; in revised form: 20 August 2007 / Accepted: 9 September 2007 / Published: 12 September 2007
(This article belongs to the Special Issue Phenolics and Polyphenolics)
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Abstract: The effect of water supply – especially of drought stress – on the content ofsome secondary metabolites in hops (Humulus lupulus L.) was studied. The experimenttook place in 2006. Some relevant data from 2005 were included for comparison. Leavesand cones of nine hop cultivars grown under field conditions as well as in a pot experimentunder three water regimes were analyzed. The cultivars ranged from those most grown inSlovenia to promising crossbreed being tested. Leaves were sampled from July 18, 2006 toAugust 18, 2006, while cones were picked in the time of technological maturity. Standardanalytical methods were applied to determine the contents of xanthohumol, polyphenolsand α-acids in hop leaves and hop cones. The contents of the secondary metabolites inquestion depended more on the cultivar under investigation than on the water supply, atleast as far the growing conditions for a relatively normal development of the plant weremet.
Keywords: Xanthohunol; polyphenols; hops; Humulus lupulus; water supply

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MDPI and ACS Style

Ceh, B.; Kac, M.; Košir, I.J.; Abram, V. Relationships between Xanthohumol and Polyphenol Content in Hop Leaves and Hop Cones with Regard to Water Supply and Cultivar. Int. J. Mol. Sci. 2007, 8, 989-1000.

AMA Style

Ceh B, Kac M, Košir IJ, Abram V. Relationships between Xanthohumol and Polyphenol Content in Hop Leaves and Hop Cones with Regard to Water Supply and Cultivar. International Journal of Molecular Sciences. 2007; 8(9):989-1000.

Chicago/Turabian Style

Ceh, Barbara; Kac, Milica; Košir, Iztok J.; Abram, Veronika. 2007. "Relationships between Xanthohumol and Polyphenol Content in Hop Leaves and Hop Cones with Regard to Water Supply and Cultivar." Int. J. Mol. Sci. 8, no. 9: 989-1000.

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