บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Non-destructive quality measurements of apples by means of NIR-spectroscopy.

Peirs, A.; Lammertyn, J.; Nicolai, B.; Baerdemaeker, J. de;

Acta Horticulturae Year: 2000 Issue: No. 517 Pages: 435-440 Ref: 7 ref.

2000

บทคัดย่อ

Non-destructive quality measurements of apples by means of NIR-spectroscopy.

The objective of this study was to evaluate the use of NIR reflectance spectroscopy as a tool to measure quality attributes of apples, such as soluble solid contents, acidity, starch index and firmness in the context of optimal picking time determination. Soluble solids, acidity, starch index and firmness were measured on 255 apples of the cultivars Jonagold, Golden Delicious, Elstar, Cox's Orange Pippin, and Boskoop, grown at Velm in Belgium, at different dates over a 5- to 7-week period before the picking date. For each apple, 4 spectra were recorded and averaged. The maturity of the apples was highly correlated with the spectra. More precise models, for soluble solid content, starch content and acidity, were also very satisfactory with high validation correlations. A good correlation was obtained between the Streif-index, an indication of the picking time, and the spectra. The results indicate that it is possible to use NIR spectroscopy as a non-destructive technique for measuring internal ap

ple quality.