Articles
EVALUATION OF DIFFERENTIAL ENERGY X-RAY ANALYSIS FOR NON-DESTRUCTIVE MEASUREMENT OF ‘HAYWARD’ KIWIFRUIT (ACTINIDIA DELICIOSA) ATTRIBUTES
Article number
880_34
Pages
291 – 298
Language
English
Abstract
Hayward kiwifruit (Actinidia deliciosa) were scanned with a differential energy X-ray analysis (DEXA) scanner and fruit weight, firmness, dry matter content, soluble solids content and mineral concentrations (N, P, K, Ca and Mg) were measured.
DEXA variables retrieved from the X-ray images were related to each fruit attribute using stepwise regression.
Fruit weight could be predicted from DEXA image area and the counts of low and high energy X-rays with a R2 of 0.96. The relationships between DEXA variables and dry matter content or mineral concentrations were weak and inconsistent between positions on the conveyer or between measurement times.
Therefore, the DEXA is unlikely to be useful for assessment of kiwifruit quality.
DEXA variables retrieved from the X-ray images were related to each fruit attribute using stepwise regression.
Fruit weight could be predicted from DEXA image area and the counts of low and high energy X-rays with a R2 of 0.96. The relationships between DEXA variables and dry matter content or mineral concentrations were weak and inconsistent between positions on the conveyer or between measurement times.
Therefore, the DEXA is unlikely to be useful for assessment of kiwifruit quality.
Authors
J. Feng, B.R. Mackay, K.M. Maguire, T. Tran, M. Bartle, G. Wallace
Keywords
fruit weight, dry matter content, mineral concentration
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