نتایج جستجو برای: alpinia galangal
تعداد نتایج: 793 فیلتر نتایج به سال:
1. The Roscoe-Bunsen law holds for the light growth response of Phycomyces if the time component of stimulation is short. With exposures longer than a few seconds, the reaction time to light is determined by the intensity and not by the energy of the flash. 2. The possible nature of the very long latency in the response to light is considered in terms of the structure of the cell and its mechan...
Extracts from 11 plant species belonging to the Zingiberaceae were tested for antifungal activity using disc diffusion bioassays. Extracts from several members, especially Alpinia galanga, Curcuma zedoaria and Zingiber purpureum, were found to have pronounced inhibitory activities against a wide variety of human pathogenic fungi, including strains resistant to the common antifungals amphoterici...
A new record species in the genus Alpinia (Alpinia graminifolia D. Fang & G.Y. Lo) for Vietnam flora
Cinnamic, p-coumaric and ferulic acids were isolated from pineapple stems (Ananas comosus var. Cayenne). Twenty-four kinds of esters were prepared from these acids, alcohols and the components of Alpinia. Isopropyl 4-hydroxycinnamate (11) and butyl 4-hydroxycinnamate (12) were found to have almost the same effectiveness in antifungal activity against Pythium sp. at 10 ppm as that of the commerc...
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