งานวิจัยนี้มีวัตถุประสงค์เพื่อศึกษา

This research aims to study the antioxidant activity in a number of rare tree species, by type of study only 132 of these plants extracted with ethanol, ethanol extracts brings to study the antioxidant (free radical scavenging DPPH method with assay test results found that the extracts exhibit antioxidant plant with all types showing 102% inhibition is greater than 50% and 60% active ingredient, there are good shows type inhibition is greater than 90% IC50 value when I found out that there is a value in the range type 31 plants 1-100 ppm, 17 plant species have value in the range 1-50 plants and 11 ppm-type with a value in the range 1-25 ppm by 11 plant species show antioxidant capabilities.Very good is the water to snatch kradon Thailand Monday Miller, anchor. Bael guests Cassia grandis takro taku Garcinia dulcis Thailand WA flacourtia Indica plants exhibit is best and dug a water kradon IC50 as follows: 7.01  0.09 and 0.25 respectively  7.64.

This research aims to study the effects of antioxidants on the rare plants of 132 species studied, only the leaves of the plant. Extracted with ethanol Extract ethanol to study the antioxidant activity by DPPH (free radical scavenging assay results showed that the extracts displayed strong antioxidant plant all 102 species listed% inhibition greater than 50% and there are 60 kinds. the exhibit has more than 90% inhibition% when applied to the plants, 31 species are found to have IC50 values ​​in the range 1-100 ppm 17 plant species have a value in the range 1-50 ppm and 11 plant species in the first period. -25 ppm by 11 plant species that are capable of antioxidants is a logical anchor Jumping Thailand Monday feeders quince guest Takhop Thailand Cassia grandis Takhro tiller said Ma Wan power plant Show Jumping is the best, and took the water with. IC50 values ​​below 7.010.09 and 7.640.25 respectively.

The purpose of this research is to study the effect of antioxidant in the rare plants were 132 type. By studying only the leaves of the plant extracts with ethanol. The study of ethanol extracts antioxidant activity DPPH way (free radical scavenging assay test results indicated that the extract showed antioxidant activity. All the plants 102 species show% inhibition than 50% and 60 types show good effect,% inhibition than 90% when นำไปหา value. IC50 found that plants 31 types were in the range of 1-100 ppm plants 17 types were in the range of 1-50 ppm and plant 11 types were in the range of 1-25 ppm by 11 plant species. Talent show in the antioxidant good is in jumping. Sponge, Terminalia chebula. Monday bucket elevator fruit Garcinia dulcis. Guest HF, takhro, giant star. Taku wa plants show effects is the best jump and sponge, which is IC50 follows 7.01  0.09 7.64  and 0.25 respectively.