|Table of Contents|

Fresh-keeping Effect of ε-Polylysine Hydrochloride Modified PVA/LDPE Composite Film on Dangshan Pears

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年05
Page:
97-103
Research Field:
Publishing date:

Info

Title:
Fresh-keeping Effect of ε-Polylysine Hydrochloride Modified PVA/LDPE Composite Film on Dangshan Pears
Author(s):
FAN Fei; CHEN Yupeng; ZHOU Jie; GUO Kejun; LI Na; PU Shunchang
(Key Laboratory of Functional Food of Medicine and Food,Bozhou University,Bozhou,Anhui 236800)
Keywords:
ε-polylysine hydrochloride; antibacterial and antifungal; composite film; Dangshan pears; preservation
PACS:
-
DOI:
10.11937/bfyy.20214098
Abstract:
Taking ε-polylysine hydrochloride (ε-PLLH),citric acid and polyvinyl alcohol as film-forming materials,the modified PVA/LDPE composite films were prepared by the casting method.The properties of the composite films were measured,and the effects of different modified composite polyethylene films on the preservation of Dangshan pears were studied,in order to provide reference for the application of PAN/LDP composite film in fruit and vegetable fresh-keeping packaging.The results showed that different content of ε-PLLH modified polyethylene composite film had a certain preservation effect on Dangshan pears,in which the film with 2% ε-PLLH had good antibacterial properties.After storage,the sensory quality of the packaged fresh pears were good,which could significantly delay the decline of hardness,reducing sugar and vitamin C content.It indicated that ε-PLLH had a certain preservation effect on fresh pears,and the comprehensive preservation effect of film packaging with content of 2% ε-PLLH was better.

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Last Update: 2022-05-24