National Repository of Grey Literature 8 records found  Search took 0.00 seconds. 
Insect repellent and feeding deterrent activity of natural sesquiterpene lactones and their derivatives
Adekenov, S. M. ; Mukhametzhanova, G. M. ; Atazhanova, G. A. ; Harmatha, Juraj
Thirty compounds were investigated in order to detect their repellent and antifeedant activity. The substances were tested on several insect test-objects: Sitophilus granarius, Tribolium confusum and Trogoderma granarium. Five sesquiterpene alpha-exometylene-gamma-lactones and one structurally transformed dimethylamino derivative showed high antifeedant and repellent activities.
Wine As Medicine throughout Ages and Within Changes of Knowledge
Harmatha, Juraj
Wine with its curative effect was, is, and within certain limits definitely will remain in the mind and memory of pople a medium, worthy of attention of professionals, as well as amateur consumers, longing for good health and carefree aging. Through the ages, the wine has been mostly considered a medicine. However, the current drug definition shifted this part of its identity among the bioactive dietary supplements - nutraceuticals with health benefits. The actual therapeutic value of wine, however, remained identical.
Chemical factors affecting the taste and medicinal activity of wine
Harmatha, Juraj
The wine is presented as a complicated multi-component, and permanently varying (maturing) natural product, with unique properties, acquired from several sources, e.g. the grape origin, the growth locality, the enological processes, as well as the qualified evaluation with a feedback to all factors shaping the character and quality of wine. Chemical components are regarded as generators of perceivable sensory (taste) properties of wine, as well as providers of its pharmacological effects and medicinal value, qualifying wine as active functional food additive (nutraceutical) with a significant impact on health.
The quality of wine from the aspect of a chemist and sommelier
Harmatha, Juraj
The wine substances are regarded not only as providers of perceivable sensory properties, but also as a basis of medicinel effects of wines. The wine is presented as an active functional food additive - nutraceutical, with significant impact on health.
Resveratrol
Šmidrkal, J. ; Filip, V. ; Prekop, J. ; Kolouchová, I. ; Melzoch, K. ; Harmatha, Juraj
Resveratrol is a polyphenolic stilbenoid present in Vitis vinifera, as well as in wine, and is responsible for the "French paradox". It is assumed that its derivatives pterostilben and pinosylvin may display similar activities.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.