A Water-absorbent Mat Incorporating β-cyclodextrin/eugenol Inclusion Complex for Preservation of Cold Fresh Mutton

To extend the shelf life of cold fresh mutton, the water-absorbent antibacterial mat was developed. This mat was composed of polylactic acid-β-cyclodextrin/eugenol (PLA-β-CD/EUG) fiber membrane, super absorbent polymer (SAP) and filter paper, in which the fiber membrane was developed by the electrospinning technique. The β-CD/EUG inclusion complexes were shown to form successfully by scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR), water contact angle (WCA) analysis. The release experiment indicated that the PLA-β-CD/EUG fiber membranes had a slow-release effect, especially in the fatty food simulant. The water-absorbent antibacterial mats can restrain the growth of six spoilage bacteria. The mats were evaluated for the preservation of cold fresh mutton. The results revealed that it displayed prolongation of shelf life upon 8 days during the mutton at 4 °C storage period. The water-absorbent antibacterial mat can slowly release natural antibacterial agents and absorb water to achieve preservation, suggesting a potential application in meat products.

     

An Ultrahigh Narrowband Absorber Close to the Information Communication Window

Plasmonics - In this paper, we demonstrate a plasmonic ultrahigh narrowband perfect absorber, which realizes an absorption intensity of up to 99.99% in the near-infrared electromagnetic spectrum...