American Potato Journal

, Volume 66, Issue 4, pp 215–225 | Cite as

Use of near infrared analysis for the nondestructive measurement of dry matter in potatoes

  • Gerald G. Dull
  • Gerald S. Birth
  • Richard G. Leffler
Article
Accepted:

Abstract

Near infrared spectrophotometry in the direct transmittance mode and in the wavelength range of 800 to 1000 nm was used to measure the % dry matter (DM) in sliced and intact potato tubers (cv Russet Burbank). With thin tissue slices, the correlation (r) between spectral and DM data was-0.975 with a standard error of calibration (SEC) of 0.91. With thick slices and intact potatoes the r, SEC, and standard error of prediction (SEP) values were -0.952, 1.28, 1.69 and -0.918, 1.04 and 1.52, respectively.

Additional Key Words

Potato dry matter specific gravity NIR spectrophotometry 

Compendio

Se utilizó la espectrofotometría cercana al infrarojo en transmisión directa y en intervalos de longitud de onda de 800 a 1 000 nm, para medir el % de materia seca (MS) en tubérculos de papa cortados en rebanadas, y enteros (cv Russet Burbank). Con rebanadas delgadas de tejido la correlación (r) entre los datos del espectro y la MS fue de -0,975 con un error estándar de calibración (EEC) de 0,91. Con rebanadas gruesas y tubérculos enteros los valores de la r, EEC, y el error estándar de predicción (EEP) fueron -0,952, 1,28, 1,69 y -0,918, 1,04, y 1,52, respectivamente.

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Copyright information

© Springer 1989

Authors and Affiliations

  • Gerald G. Dull
    • 1
  • Gerald S. Birth
    • 1
  • Richard G. Leffler
    • 1
  1. 1.R.B. Russell Agricultural Research CenterUnited States Department of Agriculture, Agricultural Research ServiceAthens

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