On measurement of colour of maize and its products.

Mancharkumar, B. and Gerstenkorn, P. and Seiler, K. and Bolling, H. (1978) On measurement of colour of maize and its products. Journal of Food Science and Technology, India, 15 (1). 6-11, 15 ref..

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Abstract

Colour was measured in 8 German maize var. (i) and their products [(ii) semolina and (iii) extrudate] using a reflectance photometer, and was expressed as yellowness, brightness and excitation purity. Particle size distribution, sample size and moisture content influenced the colour expressions. Var. Forla had max. yellowness; Zistron had the least. Brightness was the least varying character among var. Excitation purity also varied amongst var. and their products. The 3 colour expressions are independent of each other. There was no change in dominant wavelength in var. and their products, in all their colour was located in the yellow region in chromaticity diagram. An improvement in colour and its purity from (i) to (ii) during milling and a decrease in colour and purity due to extrusion cooking were observed. High association in yellowness (r = 0.93) and brightness (r = 0.76) between (i) and (ii) was noted. Negative tendency in correlations between (ii) and (iii) with respect to brightness and excitation purity was also noted. [See also preceding abstr.]

Item Type:	Article
Uncontrolled Keywords:	BREED-; corn, var. & colour of; MILLING-; corn products, milling & colour of; COLOUR-; CORN-; var. & colour of corn; milling & colour of corn products
Subjects:	600 Technology > 08 Food technology > 18 Processed foods 600 Technology > 08 Food technology > 22 Legumes-Pulses > 02 Maize
Divisions:	Grain Science and Technology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	29 Jan 2021 10:37
Last Modified:	29 Jan 2021 10:37
URI:	http://ir.cftri.res.in/id/eprint/6989

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