冷等离子体降解葡萄干中赭曲霉毒素A模型
Model for degrading ochratoxin A in raisins using cold plasma
张文乐 1张绍君 1黄渭元 2王英3
作者信息
- 1. 新疆农业大学食品科学与药学学院,新疆 乌鲁木齐 830052
- 2. 西北农林科技大学机械与电子工程学院,陕西 杨凌 712100
- 3. 新疆农业大学食品科学与药学学院,新疆 乌鲁木齐 830052;陕西工业职业技术学院机械工程学院,陕西 咸阳 712000
- 折叠
摘要
冷等离子体是降解农产品中真菌毒素的有效方法,但毒素的降解过程受冷等离子体工艺参数影响.为准确预测葡萄干中赭曲霉毒素A降解过程,利用有限元软件COMSOL建立计算模型.该模型考虑了冷等离子体的工艺参数,包括放电频率、反应器尺寸和食品基质形状,可预测葡萄干中赭曲霉毒素A降解过程.结果表明,模型和试验结果具有较高的一致性.随着放电频率的增大,赭曲霉毒素A的降解半衰期明显缩短,放电频率从 0.6 kHz增加至 1.2 kHz时,半衰期缩短至原始时间的 57%.葡萄干形状和反应器尺寸对降解效果的影响不显著.该模型是优化冷等离子体处理条件的一种可靠工具,可为冷等离子体降解农产品中真菌毒素的工业化应用提供理论依据.
Abstract
Cold plasma is an effective method for degrading fungal toxins in agricultural products,but degradation process is influenced by parameters of cold plasma process.To accurately predict degradation process of ochratoxin A in raisins,a computational model was developed using finite element software COMSOL.This model considered process parameters of plasma,including discharge frequency,size of reaction chamber,and shape of food matrix,to predict degradation process of ochratoxin A in raisins.Results showed that mod-el and experimental outcomes were highly consistent.As discharge frequency increases,half-life of ochratoxin A degradation signific-antly decreased.When discharge frequency increased from 0.6 to 1.2 kHz,half-life was reduced to 57%of original duration.Raisins shape and reactor size had a minor impact on degradation process.Results confirmed that this model was a reliable tool for optimizing conditions of cold plasma treatment,providing a theoretical basis for industrial application of plasma degradation of fungal toxins in agri-cultural products.
关键词
冷等离子体/赭曲霉毒素A/葡萄干/降解模型Key words
cold plasma/ochratoxin A/raisins/degradation model引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据