บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Non-destructive quality measurement and modelling in fruits.

Ruiz Altisent, M.; Barreiro, P.; Garcia, J. L.;

International Agrophysics Year: 1994 Vol: 8 Issue: 3 Pages: 445-453 Ref: 10 ref.

1994

บทคัดย่อ

Non-destructive quality measurement and modelling in fruits.

ABSTRACT :

 

A European Project entitled 'Quality of fruits: Engineering research for improving the quality preservation during pre- and postharvest operations' conducted by 6 European research institutions is discussed. Relevant aspects of quality of fresh fruit in the European market were investigated. Firmness sensing of selected varieties of apples, pears and avocado fruits using a non-destructive impact technique was developed. Postharvest ripeness of apples and pears was monitored by spectrophotometric reflectance measurements, and that of avocados by Hunter colour measurements. The data obtained from firmness sensing were analysed by 3 analytical procedures: principal components, correlation, and stepwise discriminant analysis. New software was developed to control the impact test, analyse the data, and sort the fruit into specified classes, based on the criteria obtained from a training run. Similar procedures were used to analyse the reflectance and colour data. Both sensing systems were able to cla

ssify fruits with good accuracy. An automated prototype of an on-line classifier was constructed.