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Mineral and antinutrient content of high quality cassava-tigernut composite flour extruded snack

Mineral and antinutrient content of high quality cassava-tigernut composite flour extruded snack

Adebowale, A. A., Kareem, S. T., Sobukola, O. P., Adebisi, M. A., Obadina, A. O., Kajihausa, O. E., Adegunwa, M. O., Sanni, L. O. and Tomlins, K. (2016) Mineral and antinutrient content of high quality cassava-tigernut composite flour extruded snack. Journal of Food Processing and Preservation, 41 (5):e13125. ISSN 0145-8892 (Print), 1745-4549 (Online) (doi:10.1111/jfpp.13125)

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Abstract

This study investigated the mineral and antinutrient composition of extruded snack produced from different blends of high quality cassava and tigernut flour. The extruded snacks were produced using a single-screw laboratory extruder at constant feed moisture (27%), screw speed (60 rpm) and barrel temperature (80C). It was observed that the extrudates had higher values for mineral composition (phosphorus, calcium, magnesium, potassium and iron) than the composite flour which showed that extrusion cooking improves the absorption of the minerals. The antinutrient (tannin, phytate, saponin, oxalate, alkaloids and total phenolic) contents of all the flour blends significantly (P < 0.05) increased with tigernut flour inclusion. Extrusion cooking resulted in significant (P < 0.05) reduction in the antinutrients of the extrudates. The study showed that extrusion cooking reduced the antinutritional factors thereby increasing the bioavailabilty of minerals. Also, the minerals were not affected by the extrusion cooking process probably because minerals are heat stable.

Item Type: Article
Uncontrolled Keywords: Extruded snack; Cassava flour; Tigernut flour
Subjects: S Agriculture > S Agriculture (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Last Modified: 21 Dec 2017 16:07
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/18416

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