Determination of dry matter content in potato tubers by low-field nuclear magnetic resonance (LF-NMR)

Christian Lyndgaard Hansen; Anette Thybo; Hanne Christine S. Bertram; Nanna Viereck; Franciscus Winfried J van der Berg; Søren Balling Engelsen

doi:10.1021/jf101319q

Determination of dry matter content in potato tubers by low-field nuclear magnetic resonance (LF-NMR)

Christian Lyndgaard Hansen, Anette Thybo, Hanne Christine S. Bertram, Nanna Viereck, Franciscus Winfried J van der Berg, Søren Balling Engelsen

51 Citationer (Scopus)

Abstract

The objective of this study was to develop a calibration model between time-domain low-field nuclear magnetic resonance (LF-NMR) measurements and dry matter (DM) content in single potatoes. An extensive sampling procedure was used to collect 210 potatoes from eight cultivars with a wide range in DM content, ranging from 16 to 28%. The exponential NMR relaxation curves were resolved into four mono-exponential components using a number of solution diagnostics. Partial least-squares (PLS) regression between NMR parameters (relaxation time constants T_2,1-4 and magnitudes M_0,1-4) and DM content resulted in a model with low error (RMSECV, 0.71; RMSEP, 0.60) and high correlation (r_CV, 0.97; r_test, 0.98) between predicted and actual DM content. Correlation between DM content and each of the proton populations revealed that M_0,1 (T_2,1, 3.6ms; SD, 0.3 ms; r, 0.95) and M_0,4 (T_2,4, 508 ms; SD, 53 ms; r, -0.90) were the major contributors to the PLS regression model.

Originalsprog	Engelsk
Tidsskrift	Journal of Agricultural and Food Chemistry
Vol/bind	58
Udgave nummer	19
Sider (fra-til)	10300-10304
Antal sider	5
ISSN	0021-8561
DOI	https://doi.org/10.1021/jf101319q
Status	Udgivet - 13 okt. 2010

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10.1021/jf101319q

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title = "Determination of dry matter content in potato tubers by low-field nuclear magnetic resonance (LF-NMR)",

abstract = "The objective of this study was to develop a calibration model between time-domain low-field nuclear magnetic resonance (LF-NMR) measurements and dry matter (DM) content in single potatoes. An extensive sampling procedure was used to collect 210 potatoes from eight cultivars with a wide range in DM content, ranging from 16 to 28%. The exponential NMR relaxation curves were resolved into four mono-exponential components using a number of solution diagnostics. Partial least-squares (PLS) regression between NMR parameters (relaxation time constants T2,1-4 and magnitudes M0,1-4) and DM content resulted in a model with low error (RMSECV, 0.71; RMSEP, 0.60) and high correlation (rCV, 0.97; rtest, 0.98) between predicted and actual DM content. Correlation between DM content and each of the proton populations revealed that M0,1 (T2,1, 3.6ms; SD, 0.3 ms; r, 0.95) and M0,4 (T2,4, 508 ms; SD, 53 ms; r, -0.90) were the major contributors to the PLS regression model.",

author = "Hansen, {Christian Lyndgaard} and Anette Thybo and Bertram, {Hanne Christine S.} and Nanna Viereck and {van der Berg}, {Franciscus Winfried J} and Engelsen, {S{\o}ren Balling}",

year = "2010",

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doi = "10.1021/jf101319q",

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pages = "10300--10304",

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T1 - Determination of dry matter content in potato tubers by low-field nuclear magnetic resonance (LF-NMR)

AU - Hansen, Christian Lyndgaard

AU - Thybo, Anette

AU - Bertram, Hanne Christine S.

AU - Viereck, Nanna

AU - van der Berg, Franciscus Winfried J

AU - Engelsen, Søren Balling

PY - 2010/10/13

Y1 - 2010/10/13

N2 - The objective of this study was to develop a calibration model between time-domain low-field nuclear magnetic resonance (LF-NMR) measurements and dry matter (DM) content in single potatoes. An extensive sampling procedure was used to collect 210 potatoes from eight cultivars with a wide range in DM content, ranging from 16 to 28%. The exponential NMR relaxation curves were resolved into four mono-exponential components using a number of solution diagnostics. Partial least-squares (PLS) regression between NMR parameters (relaxation time constants T2,1-4 and magnitudes M0,1-4) and DM content resulted in a model with low error (RMSECV, 0.71; RMSEP, 0.60) and high correlation (rCV, 0.97; rtest, 0.98) between predicted and actual DM content. Correlation between DM content and each of the proton populations revealed that M0,1 (T2,1, 3.6ms; SD, 0.3 ms; r, 0.95) and M0,4 (T2,4, 508 ms; SD, 53 ms; r, -0.90) were the major contributors to the PLS regression model.

AB - The objective of this study was to develop a calibration model between time-domain low-field nuclear magnetic resonance (LF-NMR) measurements and dry matter (DM) content in single potatoes. An extensive sampling procedure was used to collect 210 potatoes from eight cultivars with a wide range in DM content, ranging from 16 to 28%. The exponential NMR relaxation curves were resolved into four mono-exponential components using a number of solution diagnostics. Partial least-squares (PLS) regression between NMR parameters (relaxation time constants T2,1-4 and magnitudes M0,1-4) and DM content resulted in a model with low error (RMSECV, 0.71; RMSEP, 0.60) and high correlation (rCV, 0.97; rtest, 0.98) between predicted and actual DM content. Correlation between DM content and each of the proton populations revealed that M0,1 (T2,1, 3.6ms; SD, 0.3 ms; r, 0.95) and M0,4 (T2,4, 508 ms; SD, 53 ms; r, -0.90) were the major contributors to the PLS regression model.

U2 - 10.1021/jf101319q

DO - 10.1021/jf101319q

M3 - Journal article

C2 - 20853901

SN - 0021-8561

VL - 58

SP - 10300

EP - 10304

JO - Journal of Agricultural and Food Chemistry

JF - Journal of Agricultural and Food Chemistry

IS - 19

ER -

Determination of dry matter content in potato tubers by low-field nuclear magnetic resonance (LF-NMR)

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