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result sql = Improved antimicrobial activity of nisin-incorporated polymer films by formulation change and addition of food grade chelator.
Improved antimicrobial activity of nisin-incorporated polymer films by formulation change and addition of food grade chelator.
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char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 3;code = 51
char = 0;code = 48
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = (;code = 40
char = 1;code = 49
char = 0;code = 48
char = );code = 41
char = ;code = 32
char = c;code = 99
char = f;code = 102
char = u;code = 117
char = /;code = 47
char = c;code = 99
char = m;code = 109
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
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 = P;code = 80
char = E;code = 69
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = P;code = 80
char = E;code = 69
char = O;code = 79
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = C;code = 67
char = L;code = 76
char = U;code = 85
char = S;code = 83
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = I;code = 73
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = P;code = 80
char = E;code = 69
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = P;code = 80
char = E;code = 69
char = O;code = 79
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = P;code = 80
char = E;code = 69
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = E;code = 69
char = D;code = 68
char = T;code = 84
char = A;code = 65
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = B;code = 66
char = T;code = 84
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = y;code = 121
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = P;code = 80
char = E;code = 69
char = ;code = 32
char = +;code = 43
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = S;code = 83
char = I;code = 73
char = G;code = 71
char = N;code = 78
char = I;code = 73
char = F;code = 70
char = I;code = 73
char = C;code = 67
char = A;code = 65
char = N;code = 78
char = C;code = 67
char = E;code = 69
char = ;code = 32
char = A;code = 65
char = N;code = 78
char = D;code = 68
char = ;code = 32
char = I;code = 73
char = M;code = 77
char = P;code = 80
char = A;code = 65
char = C;code = 67
char = T;code = 84
char = ;code = 32
char = O;code = 79
char = F;code = 70
char = ;code = 32
char = T;code = 84
char = H;code = 72
char = E;code = 69
char = ;code = 32
char = S;code = 83
char = T;code = 84
char = U;code = 85
char = D;code = 68
char = Y;code = 89
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = N;code = 78
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = -;code = 45
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = o;code = 111
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = y;code = 121
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = o;code = 111
char = w;code = 119
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = r;code = 114
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = e;code = 101
char = l;code = 108
char = f;code = 102
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = f;code = 102
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = b;code = 98
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = a;code = 97
char = f;code = 102
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = s;code = 115
char = .;code = 46
result sql = AIMS : The following polymers were developed: polyethylene (PE), a PE and polyethylene oxide (70% PE and 30% PEO; PE + PEO) blend, PE and nisin (PE + nisin), PE, nisin, and EDTA (PE + nisin + EDTA), and PE + PEO with nisin (PE + PEO + nisin).

METHODS AND RESULTS : Of the polymers tested, PE and PE + PEO did not exhibit any antimicrobial activity against Brochothrix thermosphacta (BT); however, PE + nisin, PE + nisin + EDTA, and PE + PEO + nisin did. Beef surfaces were experimentally inoculated with 3.50 log10 cfu/cm2 of BT, vacuum packaged with each of the five polymers, and held at 4 degrees C for 21 d. After 3 d at 4 degrees C, BT was reduced > 1.70 log(10) by PE + nisin and > 3.50 log(10) with PE + nisin + EDTA or PE + PEO + nisin. By 21 d at 4 degrees C, BT was reduced to 0.30 log(10) cfu/cm(2) when treated with PE + PEO + nisin.

CONCLUSION : It appears that PE + PEO + nisin or PE + nisin + EDTA were more effective for reducing BT, as compared to polymers composed of PE + nisin.

SIGNIFICANCE AND IMPACT OF THE STUDY : Nisin-incorporated polymers may control the growth of undesirable bacteria, thereby extending the shelf life and possibly enhancing the microbial safety of meats.

Publication: Lett. Appl. Microbiol. 2001 Oct ;33(4)::325-8.
Publication Date: 2001 Oct
Study Author(s): Cutter, C N;Willett, J L;Siragusa, G R;
Institution: United States Department of Agriculture, Agricultural Research Service, Roman L. Hruska U.S. Meat Animal Research Center, PO Box 166, Clay Center, NE 68933, USA. [email protected]
Shortcut link to this study:
AIMS : The following polymers were developed: polyethylene (PE), a PE and polyethylene oxide (70% PE and 30% PEO; PE + PEO) blend, PE and nisin (PE + nisin), PE, nisin, and EDTA (PE + nisin + EDTA), and PE + PEO with nisin (PE + PEO + nisin).

METHODS AND RESULTS : Of the polymers tested, PE and PE + PEO did not exhibit any antimicrobial activity against Brochothrix thermosphacta (BT); however, PE + nisin, PE + nisin + EDTA, and PE + PEO + nisin did. Beef surfaces were experimentally inoculated with 3.50 log10 cfu/cm2 of BT, vacuum packaged with each of the five polymers, and held at 4 degrees C for 21 d. After 3 d at 4 degrees C, BT was reduced > 1.70 log(10) by PE + nisin and > 3.50 log(10) with PE + nisin + EDTA or PE + PEO + nisin. By 21 d at 4 degrees C, BT was reduced to 0.30 log(10) cfu/cm(2) when treated with PE + PEO + nisin.

CONCLUSION : It appears that PE + PEO + nisin or PE + nisin + EDTA were more effective for reducing BT, as compared to polymers composed of PE + nisin.

SIGNIFICANCE AND IMPACT OF THE STUDY : Nisin-incorporated polymers may control the growth of undesirable bacteria, thereby extending the shelf life and possibly enhancing the microbial safety of meats.
PMID: 11559410

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