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. 2012 Apr;13(4):248–253. doi: 10.1631/jzus.B1100254

Table 2.

Substrate specificity of nitroreduction catalyzed by grape extracts

Entry Substrate HPLC condition Retention time of ‒NHOH/‒NH2/‒NO2 (min) Conversion rate (%) ‒NHOH:‒NH2
1 graphic file with name JZUSB13-0248-chem02.jpg 30%‒100% CH3OH, 60 min 19.5/21.2/26.8 >99±1.88A 94:6D
2 graphic file with name JZUSB13-0248-chem03.jpg 30%‒100% CH3OH, 60 min 20.5/22.0/27.2 >99±3.07A 95:5D
3 graphic file with name JZUSB13-0248-chem04.jpg 30%‒51% CH3OH, 18 min 6.5/7.7/14.3 93±2.19B 88:12E
4 graphic file with name JZUSB13-0248-chem05.jpg 30%‒60% CH3OH, 15 min 6.4/7.2/7.4 86±3.98C 83:17F

The conversion rate (mean±SD of triplicate tests) was determined by RP-HPLC. Different letters in the same column indicate significant differences (P<0.05) according to paired t-tests