| 摘要 |
A new naturally occurring phenolic acid; 5-(3"-(3', 4'- dihydroxyphenyl) acryloyloxy)-2, 3, 4-trihydroxypentanoic acid [5- caffeoyl-2, 3, 4- trihydroxypentanoic acid] was isolated from the Solanum incanum L. seeds.The structure was determined from its physical and spectral data. Solanum incanum L. fruit is used to destroys the tooth decay which is proved by examined its effect on many patient using specific techniques and also by studying its antimicrobial activities especially against specific species of bacteria are believed to cause mainly dental caries (toothdecay) which are: Streptococcus mutans, Lactobacillus acidophilus and Actinomyces.
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