[1] Liu Ying, Li Yunfei, Wang Ruzhu, Tian Pinghai, et al. Model of gas exchange dynamics for modified-atmospherepackages containing fresh produce [J]. Journal of Southeast University (English Edition), 2005, 21 (3): 314-318. [doi:10.3969/j.issn.1003-7985.2005.03.014]

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Model of gas exchange dynamics for modified-atmospherepackages containing fresh produce()

果蔬MAP包装的气体交换动力学模型

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

21

Issue:

2005 3

Page:

314-318

Research Field:

Energy and Power Engineering

Publishing date:

2005-09-30

Info

Title:

Model of gas exchange dynamics for modified-atmospherepackages containing fresh produce

果蔬MAP包装的气体交换动力学模型

Author(s):

Liu Ying¹;  Li Yunfei²;  Wang Ruzhu²;  Tian Pinghai²

¹Institute of Refrigeration Technology, Shanghai University of Science and Technology, Shanghai 200093, China
²Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200030, China

刘颖¹;  李云飞²;  王如竹²;  田平海²

¹上海理工大学制冷技术研究所, 上海 200093; ²上海交通大学制冷与低温工程研究所, 上海 200030

Keywords:

gas exchange dynamics;  modified-atmosphere package;  respiration rate;  yellow peach

气体交换动力学;  自发气调包装;  呼吸速率;  黄桃

PACS:

TK124

DOI:

10.3969/j.issn.1003-7985.2005.03.014

Abstract:

A model for modified-atmosphere packaging(MAP)systems containing fruits and vegetables was developed.The computer simulation was performed to predict the gas mass concentrations inside the packages and was successfully verified by experiments with yellow peaches at 5, 15 and 25 ℃ using two types of packaging films.A Michaelis-Menten type respiration model with noncompetitive inhibition mechanism due to CO₂ was adopted while the respiration rates were measured with an improved permeable system method suitable for either steady or unsteady state.The applicability of the model in the design of MAP systems was demonstrated with a calculation to evaluate film specification and equilibrium concentrations of O₂ and CO₂ in the package containing yellow peaches.

建立了一个自发气调包装(MAP)系统的气体交换动力学模型, 运用计算机模拟预测包装内气体质量浓度, 并以上海市特产“锦绣黄桃”为研究对象, 采用2种包装薄膜, 在5, 15和25 ℃下进行了实验验证, 实验结果证明了模拟计算结果的正确性.同时还建立了Michaelis-Menten型呼吸速率模型, 该模型将CO₂看作O₂的非竞争性抑制剂.呼吸速率测定采用改进的渗透系统法, 该方法既适用于平衡状态, 也适用于非平衡状态.应用气体交换模型对装有黄桃的MAP系统进行了设计计算, 给出了薄膜特性和包装内O₂和CO₂的平衡浓度.

References:

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Memo

Memo:

Biography: Liu Ying(1967—), female, doctor, lecturer, liuying@sjtu.org.

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