Fruit ripeness detection by using H sup 1 NMR (Nuclear Magnetic Resonance)

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:7109239

Cho, Seong In; Krutz, G. W. ^[1]

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1. Purdue Univ., Lafayette, IN (USA). Dept. of Agricultural Engineering

The possibility of detecting ripeness of raw fruit by measuring sugar content with an A-200 Fourier Transform (FT) Nuclear Magnetic Resonance (NMR) was investigated. Then, the samples of sugar-water mixtures and real fruit were tested with the NMR and the correlations of sugar contents to NMR spectra were obtained. Sugar content (or ripeness level) was linearly correlated to the intensity of sugar peaks in the NMR spectra. This result make it possible to grade raw fruit non-destructively. 10 refs., 11 figs., 3 tabs.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States); Purdue Univ., Lafayette, IN (USA). Dept. of Agricultural Engineering
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC07-76ID01570; FC07-89ID12917
• OSTI ID: 7109239
• Report Number(s): EGG-M-89483; CONF-891280-1; ON: DE90007042
• Resource Relation: Conference: 1989 ASAE winter meeting, New Orleans, LA (USA), 11 Dec 1989
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
60 APPLIED LIFE SCIENCES
FRUITS
RIPENING
DETECTION
AGRICULTURE
CORRELATIONS
FOURIER ANALYSIS
MEASURING INSTRUMENTS
NUCLEAR MAGNETIC RESONANCE
QUALITY CONTROL
QUANTITATIVE CHEMICAL ANALYSIS
SACCHAROSE
SAMPLING
CARBOHYDRATES
CHEMICAL ANALYSIS
CONTROL
DISACCHARIDES
FOOD
INDUSTRY
MAGNETIC RESONANCE
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
RESONANCE
SACCHARIDES
320300* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes
656002 - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)
553000 - Agriculture & Food Technology