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Table 1 The TPC and TFC in ethanol extract of H. cuspidatus in different years

From: HPLC-DAD analysis of Hyssopus Cuspidatus Boriss extract and mensuration of its antioxygenation property

Compounds

Regression equation

r2

Linear range (mg/ml)

Sample

Contents (mg/g)

RSD (%)

TPC

Y = 0.124X-0.009

0.9987

0.002–0.005

H. cuspidatus(2017)

14.198 ± 0.493

3.47

H. cuspidatus(2018)

13.391 ± 0.381

2.85

H. cuspidatus(2019)

20.588 ± 0.551*

2.68

TFC

Y = 11.209X-0.007

0.9999

0.010–0.060

H. cuspidatus(2017)

36.669 ± 0.523*

1.43

H. cuspidatus(2018)

33.279 ± 0.693*

2.08

H. cuspidatus(2019)

44.847 ± 1.013*

2.26

  1. Values are presented in mean ± SD, n = 3. * represents the values of different H. cuspidatus sample group are significantly different from each other (P < 0.05)