Gas barrier coating based on cellulose nanocrystals and its preservation effects on mango

Mingxia Li; Zhenxu Shi; Shulin He; Qiang Hu; Ping Cai; Lin Gan; Jin Huang; Yongqiang Zhang

doi:10.1016/j.carbpol.2023.121317

Gas barrier coating based on cellulose nanocrystals and its preservation effects on mango

Carbohydr Polym. 2023 Dec 1:321:121317. doi: 10.1016/j.carbpol.2023.121317. Epub 2023 Aug 21.

Authors

Mingxia Li¹, Zhenxu Shi², Shulin He³, Qiang Hu⁴, Ping Cai³, Lin Gan⁵, Jin Huang⁶, Yongqiang Zhang⁷

Affiliations

¹ College of Plant Protection, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China.
² School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China.
³ College of Plant Protection, Southwest University, Chongqing 400715, China.
⁴ Beibu Gulf Institute of Marine Advanced Materials, Beihai 536000, China.
⁵ School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China. Electronic address: swucgl@swu.edu.cn.
⁶ School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China. Electronic address: huangjin2015@swu.edu.cn.
⁷ College of Plant Protection, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River, Ministry of Education, Chongqing 400715, China. Electronic address: zyqiang@swu.edu.cn.

PMID: 37739541
DOI: 10.1016/j.carbpol.2023.121317

Abstract

Mango is the "king of tropical fruits" because of its attractive appearance, delicious taste, rich aroma, and high nutritional value. However, mango keeps fast metabolizing after harvest, leading to water loss, starch conversion into sugar, texture softening, and decay. Here, a gas barrier coating based on cellulose nanocrystals (CNCs) is proposed to control the post-harvest metabolism of mango. The results of gas barrier permeability show that CNCs enhance the barrier ability of the chitosan (CS) membrane on mango by 202 % and 63 % for oxygen and water vapor, respectively. The gas-barrier coating reduces the climb in pH and the decrease in firmness by 84.9 % and 45.8 %, respectively, decelerating the conversion process from starch to sugar. Besides, introducing clove essential oil (CEO), the CEO mainly adsorbs and crystalizes on the hydrophobic facets of CNCs, presenting high compatibility, increases the antibacterial rate to nearly 100 %. As a consequence, the preservation period of the mango coated by the CNC-based membrane is at least 7-day longer than the control group. Such a gas-barrier coating based on eco-friendly composites must have excellent potential in the preservation of mango, and even for other tropical fruits.

Keywords: Cellulose nanocrystals; Eco-friendly; Gas barrier property; Natural coating; Quality guarantee period.

MeSH terms

Cellulose
Clove Oil
Mangifera*
Nanoparticles*
Oils, Volatile*
Starch
Sugars

Substances

Cellulose
Clove Oil
Oils, Volatile
Starch
Sugars