Int J Biol Macromol
College of Food Science and Engineering, Shandong Agricultural University, Taian, China; Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, Taian, China; Grain Process Technology and Engineering Technology Center in Shandong Province, Taian, China. Electronic address:
Published: April 2020
In order to develop the antioxidant and gas permeability packaging film, the effects of three plant extracts (pine nut shell, peanut shell and jujube leaf) on the physical, antioxidative and structural properties of chitosan based biodegradable films were studied. The results showed that three plant extracts improved the antioxidant capacity of films. The DPPH radical scavenging activity of chitosan-jujube leaf films increased by 3.8 times compared with the control films. The chitosan-pine nut shell films had the highest water vapor and oxygen permeability, while chitosan-peanut shell films showed greatest increase in CO permeability with a value of 1.71 × 10 cm/(m·24h) under standard test. In addition, three plant extracts reduced the homogeneity and caused porous structure of chitosan films. Chitosan-peanut shell films had the highest thermal stability compared with the control and other two films. X-ray diffraction and FTIR indicated three plant extracts changed the hydrogen bonding of film matrix and caused the changes of crystal and chemical structure. The study provided a reference for the preparation of polysaccharide-based active films with strong antioxidant and gas permeability.
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http://dx.doi.org/10.1016/j.ijbiomac.2019.11.108 | DOI Listing |
Drug Des Devel Ther
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State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China.
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Guang'anmen Hospital, China Academy of Chinese Medical Sciences Beijing 100053, China.
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the First Clinical Medical College, Nanjing University of Chinese Medicine Nanjing 210023, China Affiliated Hospital of Nanjing University of Chinese Medicine Nanjing 210029, China Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine in Prevention and Treatment of Tumor Nanjing 210023, China.
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