Growth-Inhibiting Effects of the Extracts from Coniferous Leaves against Intestinal Bacteria

Hwang, Young-Hee;Kim, Young-Mi;Lee, Hoi-Seon

  • Published : 20040800

Abstract

Extracts of 28 conifer species leaves were tested for their growth-inhibiting activities against Bifidobacterium bifidum, B. breve, Clostridium perfringens, Escherichia coli, and Lactobacillus acidophilus. Growth responses varied according to kinds of bacterial strain and conifer species. At 20 mg/disk, extracts of Abies firma, A. holophylla, Pinus banksiana, P. densiflora for aurescens, P. densiflora, P. densiflora for. umbeliformis, Taxus cuspidate, and Tooreya nucifera strongly inhibited growth of C. peifringens. At 5 and 10 mg/disk, extracts of A. holophylla, P. densiflora, and P. densiflora for. Umbeliformis showed moderate inhibiting activity against C. perfringens without adverse effects on growth of two bifidobacteria and one lactobacilli. Results indicate P. densiflora, P. densiflora for umbeliformis, and A. holophylla have at least one pharmacological intestinal effect.

Keywords

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