Eerdunbayaer , CHUN Yan, BAI Hefei, et al. Preservation Effect of Polypropylene and PBAT Resin Blend Film on Flammulina velutipes [J]. Science and Technology of Food Industry, 2021, 42(19): 329−335. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2020110174.
Citation: Eerdunbayaer , CHUN Yan, BAI Hefei, et al. Preservation Effect of Polypropylene and PBAT Resin Blend Film on Flammulina velutipes [J]. Science and Technology of Food Industry, 2021, 42(19): 329−335. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2020110174.

Preservation Effect of Polypropylene and PBAT Resin Blend Film on Flammulina velutipes

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  • Received Date: November 19, 2020
  • Available Online: August 08, 2021
  • In this study, polypropylene (PP) with chemical resistance, heat resistance, high strength mechanical properties and high wear resistance processing properties was selected as the base material to blend with the biodegradable material PBAT resin with high moisture permeability. After mixing, selected the ratio of the best modification effect (PP80%/PBAT20%) to make PPT2 blend film, and carried out PPT2 vacuum packaging and PPT2 sealed packaging on Flammulina velutipes. By comparing the blank group without packaging, the market packaging group, the PPT2 sealing group and the PPT2 vacuum group, it was found that the unpackaged group wilted and rotted at the 3rd day and lost its edible value. The market packaging group had a decline in soluble solid content at 18 days and condensation and swelling on the packaging bag lost its edible value. PPT2 was sealed due to the unstable atmosphere control of the packaging group in the early stage, the soluble solid content appears to rise suddenly when breathing is strong. PPT2 vacuum packaging group Flammulina velutipes weight loss rate, Vc content change, and soluble solid content decreased relatively smoothly, and there was no phenomenon such as swelling and condensation, and wilting and rotting do not appear until 27 days of storage. It losed its edible value. The comparison was excellent. Therefore, the PPT2 blend film combined with vacuum packaging could effectively control the elongation of the stalk caused by the growth of Flammulina velutipes, thereby extending the shelf life.
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