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Proceedings Paper

Nondestructive determination of the solids content of horticultural products
Author(s): Gerald S. Birth; Gerald G. Dull; Richard G. Leffler
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Paper Abstract

A high intensity computer controlled spectrophotometer was used to obtain near infrared (700 to 1 100 nm) speciral transmittance data of intact samples of onions, cantaloupes and potatoes. The dry matter was determined by freeze drying and the soluble solids by refractometer. A data reduction program computed the ratio of two second derivatives, opümizing 5 parameters of the computation. Linear correlations were above 0.99 for onions.

Paper Details

Date Published: 1 February 1991
PDF: 6 pages
Proc. SPIE 1379, Optics in Agriculture, (1 February 1991); doi: 10.1117/12.25070
Show Author Affiliations
Gerald S. Birth, Univ. of Minnesota (United States)
Gerald G. Dull, U.S. Dept. of Agriculture (United States)
Richard G. Leffler, U.S. Dept. of Agriculture (United States)

Published in SPIE Proceedings Vol. 1379:
Optics in Agriculture
James A. DeShazer; George E. Meyer, Editor(s)

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