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Moisture determination in starch‐rich food products by pulsed nuclear magnetic resonance
Author(s) -
BROSIO E.,
CONTI F.,
LINTAS C.,
SYKORA S.
Publication year - 1978
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1978.tb00784.x
Subject(s) - water content , extrapolation , moisture , starch , analytical chemistry (journal) , chemistry , hydrogen , low resolution , materials science , nuclear magnetic resonance , high resolution , chromatography , food science , mathematics , physics , organic chemistry , mathematical analysis , geotechnical engineering , engineering , remote sensing , geology
Summary The possibility of applying the low resolution pulsed NMR technique to moisture determination in starch‐rich low‐fat food products is described. The water content of the samples is measured from the liquid to solid ratio. The evaluation of the ratio depends upon the way of extrapolating the free induction decay (FID). The values of the extrapolation coefficients for the liquid and solid phases are measured and their dependence upon the sample water content is given. The method of standard addition for converting the percentage of moisture obtained in terms of hydrogen content to percentage in weight is described. The error statistical analysis is also reported.