Non-destructive Evaluation of Apple Firmness by Impact Technique

Behpour Balesour, Mohsen and Askari Asli-Ardeh, Ezzatollah and Afkari-Sayyah, Amir Hossein (2015) Non-destructive Evaluation of Apple Firmness by Impact Technique. Masters thesis, University of Mohaghegh Ardabili.

Text (بررسی غیرمخرب سفتی میوه سیب بر اساس تکنیک ضربه) Mohsen Behpour Balesour.pdf Download (499kB)

Abstract

Firmness is an important factor in determination of quality of apple texture, especially in predicting physiological attributes of fruit. To evaluate and precise control of ripening process, determining appropriate conditions of transport and storage as well as non destructive evaluation and modeling of the firmness is necessary. In this study, the firmness evaluation of Golden Delicious apple variety by a non-destructive impact test as fruit fall in static conditions on a load cell at three levels drop height (10,20 and 30 mm) and two control methods (Magness-Taylor and soluble solid content) was carried out. Regression equations were determined by SPSS statistical software. The results of physical properties showed that the product uniformity is acceptable. The results showed that the peak of impact force is most effective factor in determining the firmness equations based on nondestructive method. Also the results showed that the firmness of the Golden Delicious apple based on physiological index of SSC with maximum R2=0.854 can be predicted with linearly multiple regression by non destructive impact test.

Actions (login required)

View Item