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Sweetcorn colour change and consumer perception associated with increasing zeaxanthin for the amelioration of age-related macular degeneration

Fanning, K., Kirchhoff, S., Wong, L., Keating, V., O'Hare, T., Martin, I., Pun, S. and Reid, C. (2014) Sweetcorn colour change and consumer perception associated with increasing zeaxanthin for the amelioration of age-related macular degeneration. Acta Horticulturae, 1040 . pp. 221-226. ISSN 0567-7572

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Article Link(s): http://www.actahort.org/books/1040/1040_30.htm

Abstract

Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. Increasing dietary intake of lutein- and zeaxanthin-rich foods is a potential means of preventing, or at least slowing the progression of AMD. Zeaxanthin levels in tropical super-sweetcorn was increased from 1.1 to 11.9 µg/g FW through conventional breeding and selection, associated with both an increase in the proportion of zeaxanthin relative to other carotenoids, and a general increase in carotenoid synthesis. Increasing zeaxanthin was associated with a colour shift from traditional ‘canary-yellow’ kernels to a golden-orange colour. Kernel colour was most closely correlated (r2=69%) with an increase in beta-arm carotenoid concentration. Consumer analysis revealed that prior to any knowledge of zeaxanthin-related health benefit, consumers would readily purchase both yellow and gold cobs. Once the health benefit was explained, this extended to deep-gold cobs. Colour difference between regular yellow sweetcorn and high-zeaxanthin sweetcorn could potentially be used as a visual means of differentiating high-zeaxanthin sweetcorn in the marketplace.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:III International Symposium on Human Health Effects of Fruits and Vegetables-FAVHEALTH 2009 1040
Subjects:Plant culture > Vegetables
Agriculture > Agriculture (General) > Agricultural chemistry. Agricultural chemicals
Deposited On:25 Aug 2014 05:50
Last Modified:25 Aug 2014 05:50

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