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The possibilities of near infrared reflecetion spectroscopy to predict total-phosphorus, phytate-phosphorus and phytase activity in vegetable feedstuffs. / De Boever, Johan; Eeckhout, W; Boucque, CV.

In: Netherlands Journal of Agricultural Science, Vol. 42, Nr. 4, 01.12.1994, blz. 357-369.

Onderzoeksoutput: Bijdrage aan tijdschriftA1: Web of Science-artikel

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De Boever, J, Eeckhout, W & Boucque, CV 1994, 'The possibilities of near infrared reflecetion spectroscopy to predict total-phosphorus, phytate-phosphorus and phytase activity in vegetable feedstuffs', Netherlands Journal of Agricultural Science, vol. 42, nr. 4, blz. 357-369.

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Author

De Boever, Johan ; Eeckhout, W ; Boucque, CV. / The possibilities of near infrared reflecetion spectroscopy to predict total-phosphorus, phytate-phosphorus and phytase activity in vegetable feedstuffs. In: Netherlands Journal of Agricultural Science. 1994 ; Vol. 42, Nr. 4. blz. 357-369.

Bibtex

@article{fd617634763c4ae59e193999eae9cf60,
title = "The possibilities of near infrared reflecetion spectroscopy to predict total-phosphorus, phytate-phosphorus and phytase activity in vegetable feedstuffs",
abstract = "Two hundred thirty eight samples, representing 19 vegetable feedstuffs, were analyzed for total- and phytate phosphorus (P). Phytase activity was determined on a limited number of feedstuffs with an activity of more than 100 units kg(-1). Near infrared reflection spectra (NIRS) were taken between 1100 and 2500 nm in steps of 4 nm. By means of principal component analysis the feedstuffs were grouped in so called starchy (n = 150) and protein-rich feedstuffs (n = 88). NIRS-calibrations were developed using partial least square regression and tested by cross-validation. Total-P varied from 0.22 to 1.25{\%} and phytate-P from 0.05 to 1.02{\%} for starchy feedstuffs and respectively from 0.46 to 1.37{\%} and from 0.22 to 0.56{\%} for protein-rich feedstuffs. Within these broad ranges, NIRS-values were highly correlated to determined total- and phytate-P with prediction errors of 0.08{\%} and 0.08 respectively for starchy feedstuffs and 0.08{\%} and 0.04 respectively for protein-rich feedstuffs. However, considering the mostly small deviation of mean or calculated values for the separate feedstuffs, NIRS only makes practical sense to predict total-P for wheat by-products and phytate-P for maize gluten feed. On the other hand, NIRS could be used for unknown or not tabulated products. Spectral signals from total and phytate-P are partly based on direct responses from organic complexes but also on secondary relationships through protein and fat. NIRS seems not sensitive enough to detect phytase.",
author = "{De Boever}, Johan and W Eeckhout and CV Boucque",
year = "1994",
month = "12",
day = "1",
language = "English",
volume = "42",
pages = "357--369",
journal = "Netherlands Journal of Agricultural Science",
issn = "1573-5214",
publisher = "Koninklijk Landbouwkundige Vereniging/Royal Netherlands Society of Agricultural Sciences",
number = "4",

}

RIS

TY - JOUR

T1 - The possibilities of near infrared reflecetion spectroscopy to predict total-phosphorus, phytate-phosphorus and phytase activity in vegetable feedstuffs

AU - De Boever, Johan

AU - Eeckhout, W

AU - Boucque, CV

PY - 1994/12/1

Y1 - 1994/12/1

N2 - Two hundred thirty eight samples, representing 19 vegetable feedstuffs, were analyzed for total- and phytate phosphorus (P). Phytase activity was determined on a limited number of feedstuffs with an activity of more than 100 units kg(-1). Near infrared reflection spectra (NIRS) were taken between 1100 and 2500 nm in steps of 4 nm. By means of principal component analysis the feedstuffs were grouped in so called starchy (n = 150) and protein-rich feedstuffs (n = 88). NIRS-calibrations were developed using partial least square regression and tested by cross-validation. Total-P varied from 0.22 to 1.25% and phytate-P from 0.05 to 1.02% for starchy feedstuffs and respectively from 0.46 to 1.37% and from 0.22 to 0.56% for protein-rich feedstuffs. Within these broad ranges, NIRS-values were highly correlated to determined total- and phytate-P with prediction errors of 0.08% and 0.08 respectively for starchy feedstuffs and 0.08% and 0.04 respectively for protein-rich feedstuffs. However, considering the mostly small deviation of mean or calculated values for the separate feedstuffs, NIRS only makes practical sense to predict total-P for wheat by-products and phytate-P for maize gluten feed. On the other hand, NIRS could be used for unknown or not tabulated products. Spectral signals from total and phytate-P are partly based on direct responses from organic complexes but also on secondary relationships through protein and fat. NIRS seems not sensitive enough to detect phytase.

AB - Two hundred thirty eight samples, representing 19 vegetable feedstuffs, were analyzed for total- and phytate phosphorus (P). Phytase activity was determined on a limited number of feedstuffs with an activity of more than 100 units kg(-1). Near infrared reflection spectra (NIRS) were taken between 1100 and 2500 nm in steps of 4 nm. By means of principal component analysis the feedstuffs were grouped in so called starchy (n = 150) and protein-rich feedstuffs (n = 88). NIRS-calibrations were developed using partial least square regression and tested by cross-validation. Total-P varied from 0.22 to 1.25% and phytate-P from 0.05 to 1.02% for starchy feedstuffs and respectively from 0.46 to 1.37% and from 0.22 to 0.56% for protein-rich feedstuffs. Within these broad ranges, NIRS-values were highly correlated to determined total- and phytate-P with prediction errors of 0.08% and 0.08 respectively for starchy feedstuffs and 0.08% and 0.04 respectively for protein-rich feedstuffs. However, considering the mostly small deviation of mean or calculated values for the separate feedstuffs, NIRS only makes practical sense to predict total-P for wheat by-products and phytate-P for maize gluten feed. On the other hand, NIRS could be used for unknown or not tabulated products. Spectral signals from total and phytate-P are partly based on direct responses from organic complexes but also on secondary relationships through protein and fat. NIRS seems not sensitive enough to detect phytase.

M3 - A1: Web of Science-article

VL - 42

SP - 357

EP - 369

JO - Netherlands Journal of Agricultural Science

JF - Netherlands Journal of Agricultural Science

SN - 1573-5214

IS - 4

ER -