Title of article :
New water resistant biomaterial biocide film based on guar gum
Author/Authors :
Das، نويسنده , , Debasis and Ara، نويسنده , , Tarannum and Dutta، نويسنده , , Sriparna and Mukherjee، نويسنده , , Arup، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
6
From page :
5878
To page :
5883
Abstract :
This work was aimed to develop water resistant biocide film from renewable resources for applications in food and water technology. Guar gum, a polymeric galactomannan, was intrinsically modified to a new guar gum benzamide. Benzoylation was carried out by benzoyl chloride reaction in water medium and a propyl amine spacer was used to impart a high degree of hydrophobicity. The new guar gum benzamide was resistant to water and soluble in non aqueous solvent like dimethyl sulfoxide. Cast films of thickness 0.162 mm had a breaking point tensile strength of 21.95 Mpa. The water vapor permeability of biomaterial film was 0.28 g mm kPa−1 h−1 m−2 and water contact angle on evaporative surface was 90.35 degree. Qualitative and quantitative biocide activity of film was established against Salmonella enterica, Escherichia coli, Staphylococcus aureus and Bacillus subtilis. The new guar gum benzamide absorbed strongly in UV region.
Keywords :
Guar gum , hydrophobic , Biocide film , Guar gum benzamide , Biopolymer
Journal title :
Bioresource Technology
Serial Year :
2011
Journal title :
Bioresource Technology
Record number :
1924230
Link To Document :
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