The comparison of antimicroorganism and antioxidant activity of leaf extract between fragrant loquat and common loquat
In this paper,the antimicroorganism and antioxidant activity of different fractional extract of fragrant loquat and common loquat was studied by oxford plate antibacterial experiment,determination of minimal inhibitory concentration(MIC) and DPPH radical scavenging activity. The main results were as follows:On the seven?test organisms,the strongest inhibitory effect was 7#(n-BuOH extract of supernatant) ,and weakest was 3#(EtOAc extract of deposit) . Compared with the potassium sorbate(positive control) ,The minimal inhibitory concentration(MIC) of different fractional extract of fragrant loquat and common loquat were lower,the inhibitory effect were better. The polarity of 5#(Residue of deposit extraction) ,6#(EtOAc extract of supernatant) and 7#(n-BuOH extract of supernatant) was stronger and the antioxidant activity was better. On the whole,the active ingredients of fragrant loquat were similar to common loquat,but it had stronger antimicroorganism and antioxidant activities. The fragrant loquat may have potential medicinal value and had a good prospect.