基于TPA模式对3个葡萄品种果实质构性能的比较

摘要

In order to study the texture profile analysis and screen proper index on three grape cultivars berry texture,the flesh texture parameters of Kyoho,Muscat Hamburg,Red Globe were studied by using texture profile analysis with texture analyzer. The results showed that the firmness,elasticity,flocculabili-ty, chewiness of Red Globe grape fruit significantly greater than Kyoho, Muscat Hamburg grape. There was a positive correlation between the four indexes of texture parameters, especially firmness, which was significantly positively correlated with chewiness.%为了探讨不同葡萄品种果实质地的多面分析方法并筛选适宜的评价指标，以我国3个主栽葡萄品种巨峰、玫瑰香、红地球的成熟果实为试材，采用质地多面分析（TPA）法，利用物性测试仪测定了果肉的硬度、弹性、凝聚性和咀嚼性；并利用SPSS数据分析软件，对葡萄果肉4个质地参数之间的相关性进行了分析。结果表明：红地球的果肉硬度、弹性、凝聚性和咀嚼性均显著高于其他2个品种，而玫瑰香与巨峰的果肉质地参数除弹性外其他指标差异均不显著；质地参数两两之间均呈正相关，其中，咀嚼性与硬度的相关性达到了显著水平（P约0.05）。在对葡萄果肉质地进行简单评价时，可以将去皮硬度作为反映葡萄咀嚼性的重要指标。