char = S;code = 83
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = E;code = 69
char = r;code = 114
char = i;code = 105
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = p;code = 112
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = -;code = 45
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = H;code = 72
char = P;code = 80
char = L;code = 76
char = C;code = 67
char = -;code = 45
char = A;code = 65
char = B;code = 66
char = T;code = 84
char = S;code = 83
char = /;code = 47
char = D;code = 68
char = P;code = 80
char = P;code = 80
char = H;code = 72
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
result sql = Screening of free radical scavengers from Erigeron breviscapus using on-line HPLC-ABTS/DPPH based assay and mass spectrometer detection.
Screening of free radical scavengers from Erigeron breviscapus using on-line HPLC-ABTS/DPPH based assay and mass spectrometer detection.
char = E;code = 69
char = r;code = 114
char = i;code = 105
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = p;code = 112
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = -;code = 45
char = k;code = 107
char = n;code = 110
char = o;code = 111
char = w;code = 119
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = C;code = 67
char = h;code = 104
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = b;code = 98
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = -;code = 45
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = H;code = 72
char = P;code = 80
char = L;code = 76
char = C;code = 67
char = -;code = 45
char = A;code = 65
char = B;code = 66
char = T;code = 84
char = S;code = 83
char = /;code = 47
char = D;code = 68
char = P;code = 80
char = P;code = 80
char = H;code = 72
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = M;code = 77
char = S;code = 83
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = f;code = 102
char = y;code = 121
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = 7;code = 55
char = 0;code = 48
char = %;code = 37
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = E;code = 69
char = .;code = 46
char = ;code = 32
char = b;code = 98
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = p;code = 112
char = u;code = 117
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = U;code = 85
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = -;code = 45
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = H;code = 72
char = P;code = 80
char = L;code = 76
char = C;code = 67
char = -;code = 45
char = A;code = 65
char = B;code = 66
char = T;code = 84
char = S;code = 83
char = -;code = 45
char = M;code = 77
char = S;code = 83
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = H;code = 72
char = P;code = 80
char = L;code = 76
char = C;code = 67
char = -;code = 45
char = D;code = 68
char = P;code = 80
char = P;code = 80
char = H;code = 72
char = -;code = 45
char = M;code = 77
char = S;code = 83
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = 1;code = 49
char = 3;code = 51
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = 4;code = 52
char = -;code = 45
char = O;code = 79
char = -;code = 45
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = o;code = 111
char = y;code = 121
char = l;code = 108
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 4;code = 52
char = -;code = 45
char = C;code = 67
char = Q;code = 81
char = A;code = 65
char = );code = 41
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 9;code = 57
char = -;code = 45
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = o;code = 111
char = y;code = 121
char = l;code = 108
char = -;code = 45
char = 2;code = 50
char = ,;code = 44
char = 7;code = 55
char = -;code = 45
char = a;code = 97
char = n;code = 110
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = -;code = 45
char = 2;code = 50
char = -;code = 45
char = o;code = 111
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = l;code = 108
char = o;code = 111
char = s;code = 115
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 9;code = 57
char = -;code = 45
char = C;code = 67
char = O;code = 79
char = A;code = 65
char = );code = 41
char = ;code = 32
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 3;code = 51
char = -;code = 45
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = o;code = 111
char = y;code = 121
char = l;code = 108
char = -;code = 45
char = 2;code = 50
char = ,;code = 44
char = 7;code = 55
char = -;code = 45
char = a;code = 97
char = n;code = 110
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = -;code = 45
char = 3;code = 51
char = -;code = 45
char = d;code = 100
char = e;code = 101
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = -;code = 45
char = 2;code = 50
char = -;code = 45
char = o;code = 111
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = l;code = 108
char = o;code = 111
char = p;code = 112
char = y;code = 121
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = s;code = 115
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 3;code = 51
char = -;code = 45
char = C;code = 67
char = D;code = 68
char = O;code = 79
char = A;code = 65
char = );code = 41
char = ;code = 32
char = (;code = 40
char = 3;code = 51
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = I;code = 73
char = ;code = 32
char = (;code = 40
char = 4;code = 52
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = e;code = 101
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = -;code = 45
char = 3;code = 51
char = -;code = 45
char = O;code = 79
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = u;code = 117
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 5;code = 53
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = t;code = 116
char = y;code = 121
char = o;code = 111
char = l;code = 108
char = -;code = 45
char = 7;code = 55
char = -;code = 45
char = O;code = 79
char = -;code = 45
char = g;code = 103
char = l;code = 108
char = u;code = 117
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = 6;code = 54
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = u;code = 117
char = t;code = 116
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = 7;code = 55
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 1;code = 49
char = ,;code = 44
char = 4;code = 52
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = O;code = 79
char = -;code = 45
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = o;code = 111
char = y;code = 121
char = l;code = 108
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = ,;code = 44
char = 4;code = 52
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = C;code = 67
char = Q;code = 81
char = A;code = 65
char = );code = 41
char = ;code = 32
char = (;code = 40
char = 8;code = 56
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 3;code = 51
char = ,;code = 44
char = 5;code = 53
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = C;code = 67
char = Q;code = 81
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = 9;code = 57
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 1;code = 49
char = -;code = 45
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = o;code = 111
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = -;code = 45
char = 3;code = 51
char = ,;code = 44
char = 5;code = 53
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = C;code = 67
char = Q;code = 81
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = 0;code = 48
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = g;code = 103
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = B;code = 66
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = 1;code = 49
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = 4;code = 52
char = ,;code = 44
char = 5;code = 53
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = C;code = 67
char = Q;code = 81
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = 2;code = 50
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 4;code = 52
char = ,;code = 44
char = 9;code = 57
char = -;code = 45
char = d;code = 100
char = i;code = 105
char = -;code = 45
char = C;code = 67
char = D;code = 68
char = O;code = 79
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = 1;code = 49
char = 3;code = 51
char = );code = 41
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 9;code = 57
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = 1;code = 49
char = ,;code = 44
char = ;code = 32
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char = ;code = 32
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char = o;code = 111
char = r;code = 114
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char = i;code = 105
char = t;code = 116
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char = l;code = 108
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char = f;code = 102
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char = r;code = 114
char = ;code = 32
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char = h;code = 104
char = o;code = 111
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char = c;code = 99
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char = m;code = 109
char = p;code = 112
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char = n;code = 110
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char = l;code = 108
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char = e;code = 101
char = r;code = 114
char = ;code = 32
char = r;code = 114
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char = c;code = 99
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char = i;code = 105
char = o;code = 111
char = n;code = 110
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result sql = Erigeron breviscapus is a well-known traditional Chinese herbal medicine. In this study, on-line HPLC-ABTS/DPPH assay coupled with MS detection were applied to screen and identify the free radical scavengers in 70% methanol extracts of E. breviscapus. Using on-line HPLC-ABTS-MS and HPLC-DPPH-MS assay, 13 radical scavengers (including 4-O-caffeoylquinic acid (4-CQA) (1), 9-caffeoyl-2,7-anhydro-2-octulosonic acid (9-COA) (2), 3-caffeoyl-2,7-anhydro-3-deoxy-2-octulopyranosonic acid (3-CDOA) (3), erigeside I (4), quercetin-3-O-glucuronide (5), eriodictyol-7-O-glucuronide (6), scutellarin (7), 1,4-di-O-caffeoylquinic acid (1,4-di-CQA) (8), 3,5-di-CQA (9), 1-malonyl-3,5-di-CQA (10), erigoster B (11), 4,5-di-CQA (12) and 4,9-di-CDOA (13)) and 9 radical scavengers (including 1, 4, 7, 8, 9, 10, 11, 12 and 13) were discovered, respectively. Furthermore, the anti-oxidative activities of 4 compounds, including 7, 9, 11 and 12 were evaluated. Reverse anti-oxidative activity order of scutellarin and 3,5-di-CQA was observed in on-line HPLC-ABTS assay and on-line HPLC-DPPH assay. To validate their anti-oxidative activities, the off-line ABTS and DPPH assays were performed. Given sufficient reaction time, 3,5-di-CQA showed higher activity than scutellarin, which was consistent with the order obtained in on-line HPLC-ABTS assay. These results revealed that on-line HPLC-ABTS assay is a more sensitive method for screening and determining free radical scavengers, especially more suitable for those compounds with slower reaction kinetics.

Publication: Free Radic. Res. 2012 Mar ;46(3)::286-94. :doi: 10.3109/10715762.2011.652628.
Publication Date: 2012 Mar
Study Author(s): Li, Fei;Zhang, Lin-Dong;Li, Bao-Cai;Yang, Jian;Yu, Hua;Wan, Jian-Bo;Wang, Yi-Tao;Li, Peng;
Institution: Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China.
Shortcut link to this study:
Erigeron breviscapus is a well-known traditional Chinese herbal medicine. In this study, on-line HPLC-ABTS/DPPH assay coupled with MS detection were applied to screen and identify the free radical scavengers in 70% methanol extracts of E. breviscapus. Using on-line HPLC-ABTS-MS and HPLC-DPPH-MS assay, 13 radical scavengers (including 4-O-caffeoylquinic acid (4-CQA) (1), 9-caffeoyl-2,7-anhydro-2-octulosonic acid (9-COA) (2), 3-caffeoyl-2,7-anhydro-3-deoxy-2-octulopyranosonic acid (3-CDOA) (3), erigeside I (4), quercetin-3-O-glucuronide (5), eriodictyol-7-O-glucuronide (6), scutellarin (7), 1,4-di-O-caffeoylquinic acid (1,4-di-CQA) (8), 3,5-di-CQA (9), 1-malonyl-3,5-di-CQA (10), erigoster B (11), 4,5-di-CQA (12) and 4,9-di-CDOA (13)) and 9 radical scavengers (including 1, 4, 7, 8, 9, 10, 11, 12 and 13) were discovered, respectively. Furthermore, the anti-oxidative activities of 4 compounds, including 7, 9, 11 and 12 were evaluated. Reverse anti-oxidative activity order of scutellarin and 3,5-di-CQA was observed in on-line HPLC-ABTS assay and on-line HPLC-DPPH assay. To validate their anti-oxidative activities, the off-line ABTS and DPPH assays were performed. Given sufficient reaction time, 3,5-di-CQA showed higher activity than scutellarin, which was consistent with the order obtained in on-line HPLC-ABTS assay. These results revealed that on-line HPLC-ABTS assay is a more sensitive method for screening and determining free radical scavengers, especially more suitable for those compounds with slower reaction kinetics.
PMID: 22239535

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