Co-Authors:
Rutenberg, R., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan, Israel, Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
Bernstein, S., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan, Israel
Paster, N., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan, Israel
Fallik, E., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan, Israel
Poverenov, E., Department of Food Quality and Safety, Agricultural Research Organization, The Volcani Center, Bet-Dagan, Israel
Abstract:
A series of active films based on biodegradable cellulose-derived hydrocolloids capable of controlled release of antimicrobial propionic acid (PA) was prepared.β-Cyclodextrin (β-CD), usually used for encapsulation of lipophilic compounds, was utilized in this research to host the hydrophilic PA. It was found that addition of β-CD to the film forming solutions notably enhanced the hydrocolloid matrix capacity and resulted in up to a ten-fold increase in the amount of uploaded PA. In addition, β-CD resulted in a two-fold prolongation of the effective PA release duration. β-CD alone caused undesired effects on the physical, mechanical and morphological properties of the hydrocolloid films. Interestingly, when β-CD was combined with PA in the film formulation, its undesired effects were significantly subdued. The antifungal activity of the films was demonstrated on fresh harvested wheat grains. Films containing β-CD and PA were found to be effective in preventing fungal growth on wheat grains. Thus, incorporation of β-CD and PA in hydrocolloids matrices demonstrated a synergetic effect and resulted in the formation of biodegradable active films that benefit good physical and mechanical properties, high active agent content, prolonged release ability and effective antimicrobial properties. © 2015 Elsevier B.V..
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מונוכרום
הדגשת קישורים
חסימת אנימציה
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