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| 001 | u205125 | ||
| 003 | SIRSI | ||
| 008 | 100705s2003 ua ss b eng d | ||
| 040 | _aEAL | ||
| 041 |
_aeng _bara |
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| 090 | _aART MUJAS V28 No3 23 | ||
| 100 | 1 | _aEl-Akel, A. T. | |
| 240 | 1 | 0 |
_aMansoura University journal of agricultural sciences, 2003 v. 28 (3) _h[electronic resource]. |
| 245 | 1 | 0 |
_aApplication of low density polyethylene films : _b1- their mechanical, physical and antimicrobial properties _h[electronic resource]. |
| 246 | 1 | 5 |
_aأغلفة البولى اثيلين منخفض الكثافة المضادة للكائنات الحية الدقيقة : _b1- خواصها الطبيعية والميكانيكية والمضادة للكائنات الحية والدقيقة. |
| 300 | _ap.1865-1877. | ||
| 504 | _aIncludes reference. | ||
| 520 | _aThis study was carried out to evaluate low density polyethylene (LDPE) films, of 180 microns thickness, when impregnated with potassium sorbate or calcium propionate (at the concentrations of 1,2,3 and 4% w/w) which were processed by the blown film extrusion process. LDPE films were examined for their physical properties (i.e. haze, gloss, water vapor permeability, oxygen permeability, heat sealability and shrinkability) besides, their mechanical properties (i.e. tensile strength, elongation, slip, tear strength and burst strength). Mechanical and physical properties were significantly affected by the incorporation of potassium sorbate or calcium propionate up to 4% (w/w) in the films as their haze, water vapor permeability, slip and burst strength increased, while their gloss, heat sealability, shrinkability, tensile strength, elongation, tear strength and oxygen permeability decreased as the concentration of potassium sorbate or calcium propionate increased in the films. LDPE films were also tested against some species of microorganisms on agar plate medium, from which it was noticed that, the inhibitory effect of the films against the growth of Aspergillus flavus, Fusarium oxysporium, Penicillium chrysogenum DSM 844 in a disk test was higher than that in case of Bacillus subtilis, E. coli and S. aureus as the concentration of potassium sorbate or calcium propionate increased up to 4%. | ||
| 546 | _aSummary in Arabic. | ||
| 650 | 0 | _aPolyethylene. | |
| 650 | 3 | _aantimicrobial properties. | |
| 650 | 3 | _acalcium propionate. | |
| 650 | 3 | _apotassium sorbate. | |
| 650 | 3 | _apolyethylene film. | |
| 773 | 0 |
_tMansoura University Journal of Agricultural Sciences. _g2003.v.28(3) _x1110-0346 _7nnas _wu182197 |
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| 856 | 4 | 0 |
_uhttp://nile.enal.sci.eg/EALE/2003/MUJAS/2803/3/1865.pdf _zFull Text Article. |
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