Nondestructive measurement of soluble solids in fruits having a

Details Nondestructive measurement of soluble solids in fruits having a Nondestructive measurement of soluble solids in fruits having a

1990-08-06

1992-02-18

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, 2503581, G01N 2135

Patent

active

050897012

ABSTRACT:
The instant invention is drawn to efficient and nondestructive measurement of soluble solids in fruits having a rind or skin, utilizing: infrared radiation source means for providing a beam or near infrared radiation of sufficient intensity to penetrate the fruit, intensity measurement means for measuring the intensity of radiation exiting the fruit, correlating means for correlating the measurements of intensities of the exiting radiation: wherein the near infrared radiation source means and the intensity measurement means are positioned such that when a fruit is positioned within the device, the distance measured along the rind or skin of the fruit between (1) where the center of the beam intersects the rind/skin, and (2) a point on the rind/skin where the center of the field of detection intersects the rind/skin is at least about 8 cm.

REFERENCES:
Dull et al., "Use of Near Infrared Analysis for the Nondestructive Measurement of Dry Matter in Potatoes" American Potatoe Journal, vol. 66, 1989, pp. 215-225.
Birth et al., "Nondestructive Spectrophotometric Determination of Dry Matter in Onions", Journal American Society of Hort. Sci. 110(2):297-303, 1985.
Dull et al., "Near Infrared Analysis of Soluble Solids in Intact Cantaloupe", Journal Food Sci. 54(2):393-395, Mar./Apr. 1989.

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