Non-destructive detection of peach bruise by E-nose

• Published in: Nanjing nongye daxue xuebao Vol. 36; no. 1
• Main Authors: Zhu Na, Nanjing Agricultural University,Nanjing(China),College of Food Science and Technology, Pan Leiqing, Nanjing Agricultural University,Nanjing(China),College of Food Science and Technology, Mao Shubo, Nanjing Agricultural University,Nanjing(China),College of Food Science and Technology
• Format: Journal Article
• Language: Chinese
• Published: 01.01.2013
• Subjects: ANALYTICAL METHODS; CAPTEUR; DURAZNO; http://www.fao.org/aos/agrovoc#c_1513; http://www.fao.org/aos/agrovoc#c_28279; http://www.fao.org/aos/agrovoc#c_4788; http://www.fao.org/aos/agrovoc#c_5638; http://www.fao.org/aos/agrovoc#c_7377; METHODE; METHODE STATISTIQUE; METHODS; METODOS; METODOS ESTADISTICOS; PEACHES; PECHE (FRUITS); SENSORES; SENSORS; STATISTICAL METHODS; TECHNIQUE ANALYTIQUE; TECNICAS ANALITICAS
• ISSN: 1000-2030

为建立一种无损检测桃果实瘀伤的方法,对桃果实施加外力使其产生瘀伤,在24℃、相对湿度85%条件下贮藏24 h后逐个提取电子鼻响应信号,并对其进行主成分分析。结果显示：不同瘀伤等级果实的分离度为100%。电子鼻传感器阵列所含的10个传感器响应信号与瘀伤等级的相关性分析表明,大部分传感器（传感器W5S、W6S除外）响应信号与瘀伤等级均有显著相关性。利用向后消去法进行多元线性回归分析,结合取整函数建立了桃果实瘀伤等级的预测模型,验证试验表明,该模型具有较好适用性,总体准确率达到95%。 A new method to detect bruise in peaches by E-nose was proposed.Bruise damages of peaches were made by external forces and the damaged peaches were held at 24 ℃,RH 85% for 24 h.They were then tested by the E-nose one by one.Principal component analysis of sensors′ response showed that the E-nose could be used to differentiate peach fruits subjected to dif