Effect of pretreatment combined with modified atmosphere packaging on the quality of mixed fresh-cut fruits and vegetables
PU Yanqing1, LU Lixin1,2*, PAN Liao1,2, WANG Qing3, LU Lijing1, ZHANG Dahai4
1(School of Mechanical Engineering, Jiangnan University, Wuxi 214122,China) 2(Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment Technology, Wuxi 214122,China) 3(Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100081,China) 4(Suqian Lihua Agricultural Development Co.Ltd., Suqian 223833, China)
Abstract: For the mixed fresh-cut fruits and vegetables, their breathing will affect each other, and it will be more susceptible to browning and deterioration, which will shorten the shelf life of the products. This study screened out the proportion of modified atmosphere components which were suitable for mixing fresh-cut fruits and vegetables. Apples, carrots and oranges were used as experiment materials. The fresh-cut fruits and vegetables were pretreated by edible coated film and preserved with different modified atmosphere packaging (MAP) at 4 °C. The quality of mixed fresh-cut fruits and vegetables was determined by sensory score, color difference, soluble solid content, vitamin C content, weight loss rate and the total number of colonies. Principal component analysis was used to determine the suitable gas components in MAP. Results showed that MAP could effectively improve the browning and cross-infection of mixed fresh-cut fruits and vegetables during storage. The preservation effect of MAP was better under the ratio of 5% O2+5%CO2+90%N2 gas composition than the control group. MAP could inhibit the interaction of respiratory action of mixed fresh-cut fruits and vegetables. In addition, MAP could also delay browning of fresh-cut apple and reduce whitening and lignification of carrot. Moreover, MAP could inhibit the growth of microorganisms and slow down the rate of decrease in TSS content and vitamin C content of mixed fresh-cut fruits and vegetables. In conclusion, pretreating with edible coated film and preserving with MAP(5% O2+5%CO2+90%N2)showed the optimal effect on maintaining the quality of the mixed fresh-cut fruits and vegetables. The shelf life could be prolonged to 8 days using this method.
濮艳清,卢立新,潘嘹,等. 预处理结合气调包装对混合鲜切果蔬品质的影响[J]. 食品与发酵工业, 2020, 46(6): 114-120.
PU Yanqing,LU Lixin,PAN Liao,et al. Effect of pretreatment combined with modified atmosphere packaging on the quality of mixed fresh-cut fruits and vegetables[J]. Food and Fermentation Industries, 2020, 46(6): 114-120.
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2020, Vol. 46 
