利用电子鼻系统检测乙醇喷雾对品丽珠、美乐及其葡萄酒挥发物的影响
monitoring effects of ethanol spray on cabernet franc and merlot grapes and wine volatiles using electronic nose systems
利用电子鼻系统检测乙醇喷雾对品丽珠、美乐及其葡萄酒挥发物的影响
bruce w. zoecklein,1* yamuna s. devarajan,2 kumar mallikarjunan,3 and denise m. gardner2,4
abstract:
the ability of two electronic nose systems (conducting polymer and surface acoustic wave-based) to differentiate volatiles of grapes and wines treated with an aqueous ethanol spray (5% v/v) at veraison was evaluated. ethanol spray induced fruit ethylene production immediay posttreatment, which then declined progressively. the electronic nose evaluations of grape volatiles were compared with cabernet franc and merlot physicochemistry and with wine gas chromatographic and aroma sensory data. canonical discriminant and principal component analysis found that both electronic nose systems and the physicochemical measures (brix, ta, ph, color intensity and hue, total phenols, glycosides, and berry weight) were able to discriminate between ethanol-treated and untreated grapes and wines for both c*rs. grape physicochemical treatment differences were due mainly to variations in hue, phenolic-free glycosides, and total phenols. aroma sensory evaluations using a consumer panel differentiated between ethanol treatments and controls for merlot, but not for cabernet franc wines.
评价了两种电子鼻系统(导电聚合物和表面声波)区分葡萄和葡萄酒在velasin的含水乙醇喷雾(5% v/v)分析的挥发性物质的能力。乙醇喷雾可导致果实乙烯含量迅速上升，然后逐渐降低。对葡萄挥发物的电子鼻评价与品丽珠、美乐、葡萄酒气相色谱和香气感官数据进行了比较。典型判别分析和主成分分析发现，电子鼻系统和理化测量(硬度、ta、ph、颜色强度和色调、总酚类、苷类和浆果重量)都能够区分两个品种的乙醇处理和未处理葡萄和葡萄酒。葡萄理化处理差异主要是由于色泽、无酚苷和总酚的变化。使用消费者小组对美乐葡萄酒进行香气感官评价，这一评价在乙醇处理和对照之间有所区别，但不适用于品丽珠葡萄酒。
key words: electronic nose, volatiles, merlot, cabernet franc
关键词：电子鼻、挥发物、美乐、品丽珠
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利用电子鼻系统检测乙醇喷雾对品丽珠、美乐及其葡萄酒挥发物的影响
PVC薄膜收缩率测试仪操作方法
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利用电子鼻系统检测乙醇喷雾对品丽珠、美乐及其葡萄酒挥发物的影响
bruce w. zoecklein,1* yamuna s. devarajan,2 kumar mallikarjunan,3 and denise m. gardner2,4
abstract:
the ability of two electronic nose systems (conducting polymer and surface acoustic wave-based) to differentiate volatiles of grapes and wines treated with an aqueous ethanol spray (5% v/v) at veraison was evaluated. ethanol spray induced fruit ethylene production immediay posttreatment, which then declined progressively. the electronic nose evaluations of grape volatiles were compared with cabernet franc and merlot physicochemistry and with wine gas chromatographic and aroma sensory data. canonical discriminant and principal component analysis found that both electronic nose systems and the physicochemical measures (brix, ta, ph, color intensity and hue, total phenols, glycosides, and berry weight) were able to discriminate between ethanol-treated and untreated grapes and wines for both c*rs. grape physicochemical treatment differences were due mainly to variations in hue, phenolic-free glycosides, and total phenols. aroma sensory evaluations using a consumer panel differentiated between ethanol treatments and controls for merlot, but not for cabernet franc wines.
评价了两种电子鼻系统(导电聚合物和表面声波)区分葡萄和葡萄酒在velasin的含水乙醇喷雾(5% v/v)分析的挥发性物质的能力。乙醇喷雾可导致果实乙烯含量迅速上升，然后逐渐降低。对葡萄挥发物的电子鼻评价与品丽珠、美乐、葡萄酒气相色谱和香气感官数据进行了比较。典型判别分析和主成分分析发现，电子鼻系统和理化测量(硬度、ta、ph、颜色强度和色调、总酚类、苷类和浆果重量)都能够区分两个品种的乙醇处理和未处理葡萄和葡萄酒。葡萄理化处理差异主要是由于色泽、无酚苷和总酚的变化。使用消费者小组对美乐葡萄酒进行香气感官评价，这一评价在乙醇处理和对照之间有所区别，但不适用于品丽珠葡萄酒。
key words: electronic nose, volatiles, merlot, cabernet franc
关键词：电子鼻、挥发物、美乐、品丽珠
不锈钢焊接小管子自动焊机的应用
厂家介绍保温材料制作包括什么
潜水搅拌机的保养和维护知识
注射用*中盐酸半*含量不确定度的评估
数控液压弯管机如何避免故障发生
利用电子鼻系统检测乙醇喷雾对品丽珠、美乐及其葡萄酒挥发物的影响
PVC薄膜收缩率测试仪操作方法
RZ3000能耗监控装置功能介绍
E+H电容液位计FTI55-AAA1RV143A1A技术参数
自来水供应中活性炭的应用
加工中心光机的高刚性设计与其防护装置
数控薄壁弯管技术是怎样形成的呢？
玻璃反应釜有几种
CKD电磁阀详细介绍
重磅!ATSC 3.0 新一代便携式信号发生器 _调制卡_播发卡
切削液流量计
辐射剂量报警仪能保障我们的健康安全
齿轮泵如何正确安装?
包装撕拉力试验机-数据可靠
超声波焊接机不工作的原因是什么？