Evidence-Based Complementary and Alternative Medicine / 2015 / Article / Tab 3 / Review Article
Evaluation of Chemical Constituents and Important Mechanism of Pharmacological Biology in Dendrobium Plants Table 3 Assessment of the ABTS, hydroxyl, and DPPH scavenging abilities of DNP and compounds DNP4-2, DNP2-1, DNP3-1, and DNP1-1 derived from DNP.
DNP, DNP4-2, DNP2-1, DNP3-1, and DNP1-1
0.5 mg for DPPH scavenging (%)
1 mg for DPPH scavenging (%) Type Scavenging (%) Type Scavenging (%) DNP 20 DNP 20–30 DNP4-2 20–30 DNP4-2 30–40 DNP2-1 5–10 DNP2-1 10–20 DNP3-1 About 5 DNP3-1 <5 DNP1-1 <5 DNP1-1 About 5
0.5 mg for ABTS scavenging (%)
1 mg for ABTS scavenging (%) Type Scavenging (%) Type Scavenging (%) DNP 30–40 DNP <60 DNP4-2 About 40 DNP4-2 >60 DNP2-1 <20 DNP2-1 About 40 DNP3-1 ≥20 DNP3-1 30–40 DNP1-1 10 DNP1-1 30
0.5 mg for hydroxyl scavenging (%)
1 mg for hydroxyl scavenging (%) Type Scavenging (%) Type Scavenging (%) DNP 30–40 DNP 35–40 DNP4-2 20–30 DNP4-2 30–35 DNP2-1 10 DNP2-1 10–15 DNP3-1 5–10 DNP3-1 10 DNP1-1 0 DNP1-1 5
Based on data for DNP, DNP4-2, DNP2-1, DNP3-1, and DNP1-1 scavenging (%)
DPPH scavenging % (0.5 mg content): DNP4-2 > DNP > DNP2-1 > DNP3-1 > DNP1-1
DPPH scavenging % (1 mg content): DNP4-2 > DNP > DNP2-1 > DNP1-1 > DNP3-1
ABTS scavenging % (0.5 mg content): DNP4-2 > DNP > DNP3-1 > DNP2-1 > DNP1-1
ABTS scavenging % (1 mg content): DNP4-2 > DNP > DNP2-1 > DNP3-1 > DNP1-1
Hydroyl scavenging % (0.5 mg content): DNP > DNP4-2 > DNP2-1 > DNP3-1 > DNP1-1
Hydroyl scavenging % (1 mg content): DNP > DNP4-2 > DNP2-1 > DNP3-1 > DNP1-1
Up the table: it is shown that DPPH and ABTS free radical scavenging (%) of DNP4-2 are better than other compounds; however, the hydroxyl free radical scavenging (%) of DNP is better than other compounds.