Preparation of carboxymethyl chitosan/double-formaldehyde cellulose based hydrogel loaded with ginger essential oil nanoemulsion for meat preservation

Xutao Mai; Xinxiao Zhang; Minmin Tang; Yuhang Zheng; Daoying Wang; Weimin Xu; Fang Liu; Zhilan Sun

doi:10.1007/s10068-023-01437-4

Preparation of carboxymethyl chitosan/double-formaldehyde cellulose based hydrogel loaded with ginger essential oil nanoemulsion for meat preservation

Food Sci Biotechnol. 2023 Nov 28;33(6):1359-1369. doi: 10.1007/s10068-023-01437-4. eCollection 2024 May.

Authors

Xutao Mai^#^{1

2}, Xinxiao Zhang^#¹, Minmin Tang¹, Yuhang Zheng¹, Daoying Wang^{1

3

4}, Weimin Xu^{1

2}, Fang Liu³, Zhilan Sun^{1

4}

Affiliations

¹ Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China.
² School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210097 China.
³ Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China.
⁴ Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing, 210014 China.

^# Contributed equally.

Abstract

An antibacterial nano-hydrogel (ginger essential oil nanoemulsion hydrogel, GEONH) based on Schiff base reaction was prepared using double-formaldehyde micro fibrillated cellulose (DAMFC) and carboxymethyl chitosan (CMCS) loaded with ginger essential oil nanoemulsion (GEON). It was found that when the mass ratio of DAMFC/CMCS/GEON was 1/9/270, the gel time, the water absorbency, gel strength, and morphology were the best. The results of X-ray diffraction and FT-IR confirmed that the aldehyde group on the DAMFC molecular chain formed a stable chemical crosslinking with the amino group on the CMCS molecular chain, resulting in a change in the crystal structure. GEONH showed excellent bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. Simultaneously, the prepared GEONH decreased the total viable count, Malondialdehyde, and total sulfhydryl content and improved the taste in the storage of boiled salted duck. Therefore, GEONH film is a promising fresh-keeping packaging for storing meat products.

Supplementary information: The online version contains supplementary material available at 10.1007/s10068-023-01437-4.

Keywords: Carboxymethyl chitosan; Double-formaldehyde micro fibrillated cellulose; Ginger essential oil; Hydrogel; Schiff base reaction.

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