The Effect of Multiplicative Scatter Correction (MSC) and Linearity Improvement in NIR Spectroscopy

Abstract

Near-infrared (NIR) reflectance spectra of five different food products were measured. The spectra were transformed by multiplicative scatter correction (MSC). Principal component regression (PCR) was performed, on both scatter-corrected and uncorrected spectra. Calibration and prediction were performed for four food constituents: protein, fat, water, and carbohydrates. All regressions gave lower prediction errors (7–68% improvement) by the use of MSC spectra than by the use of uncorrected absorbance spectra. One of these data sets was studied in more detail to clarify the effects of the MSC, by using PCR score, residual, and leverage plots. The improvement by using nonlinear regression methods is indicated.

Keywords

NIR Near-infrared reflectance Multiplicative scatter correction PCR Principal component regression

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References

Geladi

MacDougall

, and Martens

, Appl. Spectrosc. 39, 491 (1985).

Stark

Luchter

, and Margoshes

, Appl. Spectrosc. Rev. 22, 335 (1986).

Hruschka

W. R.

, Near Infrared Reflectance Spectroscopy: Principles and Applications, Williams

and Norris

, Eds. (Am. Assoc, of Cereal Chemists, St. Paul, Minnesota, 1987), p. 35.

Norris

K. H.

, Food Research and Data Analysis, Martens

and Russwurm

Jr. , Eds. (Appl. Sci. Publ., Essex, 1983), p. 95.

Hoerl

A. E.

Kennard

R. W.

, and Hoerl

R. W.

, Appl. Stat. 34, 114 (1985).

Martens

Jensen

, and Geladi

, Proc. Nordic Symp. on Applied Statistics (Stavanger, Stokkand Forlag, 1983), p. 205.

Nses

Irgens

, and Martens

, Appl. Stat. 35, 195 (1986).

Kubelka

and Munk

, Z. Tech. Phys. 12, 593 (1931).

Saunderson

J. L.

, J. Opt. Soc. Am. 32, 727 (1942).

10.

Mandel

, Am. Stat. 36, 15 (1982).

11.

Cowe

and McNicol

J. W.

, Appl. Spectrosc. 39, 257 (1985).

12.

Isaksson

and Næs

, Proc. of Euro Food Chem. IV (Norwegian Food Research Institute, Norway, 1987), p. 509.

13.

Næs

and Martens

, J. of Chemometrics 2, 155 (1988).

14.

Joliffe

I. T.

, Appl. Stat. 31, 300 (1982).

15.

Stone

, J. Roy. Stat. Soc. B. 36, 111 (1973).

16.

Martens

and Næs

, Near-Infrared Reflectance Spectroscopy: Principles and Applications, Williams

and Norris

, Eds. (Am. Assoc, of Cereal Chemists, St. Paul, Minnesota, 1987), p. 57.

17.

Friedman

J. H.

and Stuetzle

, J. of the Am. Stat. Ass. 76, 812 (1981).

18.

Breiman

and Friedman

J. H.

, J. of the Am. Stat. Ass. 80, 580 (1985).

19.

Osborne

B. G.

, Analyst 113, 263 (1988).