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Four types of phytoncide solution (A-Type, AB-Type, D-Type and G-Type) were evaluated as antimutagenic agents with suppressive effects on the SOS-inducing activity of the mutagen 2-(2-furyl)-3-(5-nitro-2-furyl) acrylamide (furylfuramide) using Salmonella typhimurium TA1535/pSK1002 umu test. The A-Type, AB-Type, D-Type and G-Type of phytoncide solution suppressed the SOS-inducing activity on furylfuramide at a concentration of 100 microg/mL by 86.1%, 74.7%, 69.5% and 55.4%, respectively, and the ID(50) (50% inhibitory dose) values were 9.0 microg/mL, 22.5 microg/mL, 36.0 microg/mL and 72.8 microg/mL. They also showed the suppression of SOS-inducing activity against other chemical mutagens, such as 4-nitroquinolin 1-oxide (4NQO) and N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), which do not require liver metabolizing enzymes, and against 2-aminoanthracene (2AA) and 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), which require these enzymes, and against UV irradiation, which is a well known physical mutagen. In the search for the component-activity relationship, the A-Type of phutoncide solution suppressed the SOS-inducing activity greater than the other types of phutoncide solution for furylfuramide, 4NQO and MNNG. However, in case of 2AA and Trp-P-1, the D-Type of phytoncide solution was most effective in suppressing the SOS-inducing activity in the umu test. From these results, the four types of phytoncide solutions showed the suppressive effect of SOS-inducing activity against chemical and physical mutagens.

journal of oleo science

Suppression of Mutagens-Induced SOS Response by Phytoncide Solution Using &lt;i&gt;Salmonella typhimurium&lt;/i&gt; TA1535/pSK1002 &lt;i&gt;umu&lt;/i&gt; Test