บทคัดย่องานวิจัย

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Empirical models to predict apple quality under simulated shelf-life conditions by nondestructive acoustic impulse measurements.

Tu, K.; Nicolai, B.; Baerdemaeker, J. de; Morimoto, T.; Hashimoto, Y.;

International Agricultural Engineering Journal Year: 2000 Vol: 9 Issue: 2 Pages: 97-106 Ref: 21 ref.

2000

บทคัดย่อ

Empirical models to predict apple quality under simulated shelf-life conditions by nondestructive acoustic impulse measurements.

The changes of firmness and weight were monitored for apples (cv. Boskoop, Elstar, Golden Delicious and Jonagold) over a 2 year experiment. The nondestructive acoustic impulse measurement was applied to determine the quality of apple fruits under simulated shelf-life (20 deg C, 65% relative humidity (RH)) conditions. The firmness of apples, indicated by the stiffness factor, showed a decline following storage. An exponential or a second order polynomial regression model was found to fit the experimental firmness data (R2=0.90-0.98). A linear regression model (R2=0.86-0.95) appeared able to express the weight loss of marketable apple fruits. Parameters of the models should be adjusted based on the initial conditions of the fruit and the storage conditions in postharvest practice.