Title:
METHOD FOR PREPARING OAT PROTEIN AND PULLULAN POLYSACCHARIDE COMPOSITE FRUIT AND VEGETABLE CLING FILM BY ULTRASOUND
Document Type and Number:
WIPO Patent Application WO/2022/227701
Kind Code:
A1
Abstract:
The present invention relates to the technical field of food packaging material preparation, and provides a method for preparing an oat protein and pullulan polysaccharide composite fruit and vegetable cling film by ultrasound. The method comprises the following steps: preparation of an oat protein/pullulan polysaccharide film-forming solution; preparation of a Nisin-loaded oat protein/pullulan polysaccharide film-forming solution; preparation of an ultrasound-treated Nisin-loaded oat protein/pullulan polysaccharide film-forming solution; and flow casting to form a film, and drying to obtain a composite film. In the preparation process of the composite film, Nisin is added to improve the mechanical properties of the composite membrane, and make the composite film have good antibacterial properties; the use of multi-mode ultrasound treatment technology is beneficial to enhancing the degree of crosslinking between the oat protein, the pullulan polysaccharide, and Nisin, and ultrasound treatment reduces the light transmittance of the composite film and improves the water barrier properties and oxygen barrier properties of the composite film. According to the present invention, strawberries are coated with the composite film for preservation, thus, the decay rate, the weight loss rate, and the hardness loss of the strawberries are significantly reduced, and the shelf life of the strawberries is prolonged.
Inventors:
REN XIAOFENG (CN)
LIANG QIUFANG (CN)
MA HAILE (CN)
QU WENJUAN (CN)
CHEN HUANXIN (CN)
LIU YUXUAN (CN)
KANG LIXIN (CN)
HOU TING (CN)
LIANG QIUFANG (CN)
MA HAILE (CN)
QU WENJUAN (CN)
CHEN HUANXIN (CN)
LIU YUXUAN (CN)
KANG LIXIN (CN)
HOU TING (CN)
Application Number:
PCT/CN2022/071248
Publication Date:
November 03, 2022
Filing Date:
January 11, 2022
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
C08L5/00; C08J3/28; C08J5/18; C08K5/053; C08L89/00
Foreign References:
| CN113214514A | 2021-08-06 | |||
| KR20200033603A | 2020-03-30 | |||
| CN110964331A | 2020-04-07 | |||
| CN1723803A | 2006-01-25 | |||
| CN101558784A | 2009-10-21 | |||
| CN103013139A | 2013-04-03 |
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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