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Near infrared reflectance as a rapid and inexpensive surrogate measure for fatty acid composition and oil content in peanuts (Arachis hypogaea L.)

Fox, G.P. and Cruickshank, A. (2005) Near infrared reflectance as a rapid and inexpensive surrogate measure for fatty acid composition and oil content in peanuts (Arachis hypogaea L.). Journal of Near Infrared Spectroscopy, 13 (5). pp. 287-291.

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Publisher URL: http://www.impublications.com

Abstract

The fatty acid composition of ground nuts (Arachis hypogaea L.) commonly known as peanuts, is an important consideration when a new variety is being released. The composition impacts on nutrition and, importantly, self-life of peanut products. To select for suitable breeding material, it was necessary to develop a rapid, non-derstructive and cost-efficient method. Near infrared spectroscopy was chosen as that methodology. Calibrations were developed for two major fatty-acid components, oleic and linoleic acids and two minor components, palmitic and stearic acids, as well as total oil content. Partial least squares models indicated a high level of precision with a squared multiple correlation coefficient of greater than 0.90 for each constitutent. Standard errors for prediction for oleic, linoleic, palmitic, stearic acids and total oil content were 6.4%, 4.5%, 0.8%, 0.9% and 1.3% respectively. The results demonstrated that reasonable calibrations could be developed to predict oil composition and content of peanuts for a breeding programme.

Item Type:Article
Business groups:Crop and Food Science, Agri-Science
Additional Information:© NIR Publications.
Keywords:NIR; fatty acids; oleic acid; linoleic acid; peanuts.
Subjects:Technology > Technology (General) > Spectroscopy > NIR (Near Infrared)
Plant culture > Fruit and fruit culture > Nuts
Deposited On:12 Mar 2007
Last Modified:20 Oct 2011 05:19

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