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Development and investigation of antibacterial and antioxidant characteristics of poly lactic acid films blended with neem oil and curcumin
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Abstract
Antibacterial films based on polyla ctic acid (PLA) were developed by blende dwith neem oil (NO) and curcumin via solvent casting techni que. Nuclear mag-netic re sonance (NMR) results revealed the presence of fillers (NO and cur-cumin) in the PLA matrix. Without losing much of the PLA film's transparency, the composite film has excepti onal ult ra violet-blocking proper-ties.
The addition of NO to the PLA matrix incr eased the elongat ion of the composite film by reducing tensile strength while not affect their thermal sta-bility. The water vapor transfer rate (WVTR), water contact angle (WCA), and oxygen transmission rate (OTR) of the film were margin ally improved by the introduction of NO and curcu min. The curcu min inclusion prevented the plas-ticized PLA/NO/cur cumin compositions surfaces from porosity acco rding to the morphology studies. Further, the PLA/NO/cu rcumin composites films exhibited good antibacter ial, antioxidan t activity and therefore have the possi-bility to use as an active packaging material for food preservation and safety.
KEYWOR DS films, mechanical properties, packaging
LƯU Ý:
Tài liệu được chia sẻ bởi CTV EBOOKBKMT "Nguyễn Duy Long" chỉ được dùng phục vụ mục đích học tập và nghiên cứu.
Abstract
Antibacterial films based on polyla ctic acid (PLA) were developed by blende dwith neem oil (NO) and curcumin via solvent casting techni que. Nuclear mag-netic re sonance (NMR) results revealed the presence of fillers (NO and cur-cumin) in the PLA matrix. Without losing much of the PLA film's transparency, the composite film has excepti onal ult ra violet-blocking proper-ties.
The addition of NO to the PLA matrix incr eased the elongat ion of the composite film by reducing tensile strength while not affect their thermal sta-bility. The water vapor transfer rate (WVTR), water contact angle (WCA), and oxygen transmission rate (OTR) of the film were margin ally improved by the introduction of NO and curcu min. The curcu min inclusion prevented the plas-ticized PLA/NO/cur cumin compositions surfaces from porosity acco rding to the morphology studies. Further, the PLA/NO/cu rcumin composites films exhibited good antibacter ial, antioxidan t activity and therefore have the possi-bility to use as an active packaging material for food preservation and safety.
KEYWOR DS films, mechanical properties, packaging
LƯU Ý:
Tài liệu được chia sẻ bởi CTV EBOOKBKMT "Nguyễn Duy Long" chỉ được dùng phục vụ mục đích học tập và nghiên cứu.
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