Evaluation of Absorption Kinetics of Oxygen Scavenger Sachets Using Response Surface Methodology
Evaluation of Absorption Kinetics of Oxygen Scavenger Sachets Using Response Surface Methodology
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DOI：
10.1002/pts.905
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发表时间：
2010-10-01
影响因子：
2.6
通讯作者：
Braga, Jez W. B.
中科院分区：
文献类型：
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作者：
Braga, Lilian R.;Sarantopoulos, Claire I. G. L.;Braga, Jez W. B.
除氧剂的性能受多种条件的影响，如温度(T)和相对湿度(RH)，这被认为是两个主要因素。因此，新型清道夫的开发需要研究它们的性能，这些条件各不相同。本文采用响应面方法(RSM)研究了一种新型除氧剂的性能，模拟了T和RH及其交互作用对新型除氧剂的吸附容量和速率常数的影响。商业氧气清除剂香囊用于比较目的。用以中心点为中心的22析因设计对吸氧量和速率常数进行了评价。结果表明，不同的吸收香囊表现出不同的行为，T和RH之间存在显著的交互作用，因此，RSM最适合于这些研究。在温度为23℃和相对湿度为53%时，所研制的香包的性能优于商用香包，这代表了中等水分活度食品在室温下商业化的条件，而在极端条件下(100%相对湿度和37℃)，所有香包的吸收能力都相似。版权所有(C)2010 John Wiley&Sons，Ltd.
The performance of oxygen scavengers can be influenced by several conditions, such as temperature (T) and relative humidity (RH), which are considered to be the two major factors. Therefore, the development of new scavengers requires the study of their performance, with these conditions varied. In this paper, the response surface methodology (RSM) was used to study the performance of a newly developed oxygen scavenger sachet and to model the influences of T and RH and their interaction on the absorption capacity and rate constant of the developed sachet. Commercial oxygen scavenger sachets were used for comparison purposes. The oxygen absorption capacity and rate constant were evaluated with a 22 factorial design with a central point. The results showed that each absorber sachet presented a different behaviour and there were significant interactions between T and RH; so, the RSM was the most appropriate for these studies. The developed sachet presented a better performance compared with the commercial ones at 23 degrees C and 53% RH, which represents the condition for commercialization at room temperature of foods of intermediary water activity, while in the extreme conditions (100% RH and 37 degrees C) all sachets present a similar absorption capacity. Copyright (C) 2010 John Wiley & Sons, Ltd.