【摘要】 咖啡碱是茶树的主要生物碱和特征性物质之一,通过滤纸片法、生长速率法、饲喂称重法对咖啡碱抑菌、抗虫作用的研究,发现咖啡碱对供试细菌和真菌有一定的抑菌能力,对棉铃虫和菜粉蝶、家蚕幼虫具有毒害和抑制生长的影响。咖啡碱作为茶树的次生代谢产物具有抗病抗虫的的生物学功能。更多还原

【Abstract】 Caffeine is the major component of alkaloids in tea plant.Biological function of caffeine in tea plant was studied in this paper.Filter paper dispersion and mycelial growth rate methods were used to determine the antimicrobial activity.The method of feeding insect with caffeine to determine the insecticidal activity.The results showed the caffeine could inhibit the growth of tested bacteria and fungi,and the caffeine had high toxicity to tested insect.更多还原