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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/9754

Title: Modelling of Milk Solids Extraction from Tigernut (Cyperus Esculentus L) Tubers Using Response Surface Methodology
Authors: Ellis, William Otto
Oduro, Ibok
Saalia, Firibu K.
Asante, Frank A.
Keywords: Response surface methodology
Milk solids extraction
Tiger nut tubers
Issue Date: 2014
Publisher: International Journal of Food Science and Nutrition Engineering
Citation: International Journal of Food Science and Nutrition Engineering 2014, 4(3): 73-79 DOI: 10.5923/j.food.20140403.03
Abstract: Vegetable milk solids from black and brown varieties of tiger nut (Cyperus esculentus L) tubers were extracted using water. Response surface methodology was used to determine the optimum conditions for extraction. The factors and their levels were boiling time (10.125, 240 minutes), milling time (5, 17.5, 30 minutes), and tuber: water (1: 2, 1:5, and 1: 8). The data obtained were fitted to second order polynomial models to enable the determination of variables for the estimation and prediction of the extraction of milk solids. The optimum extraction conditions were for the black cultivar; milling time, 23.8 minutes; tuber: water, 1 g: 7.8 ml; boiling time, 240 minutes and for the brown cultivar, milling time, 22.0 minutes; tuber: water, 1 g: 7.2 ml; boiling time, 10 minutes. Under the experimental conditions the expected milk solids for the black tubers was 65.07 (0.40) % against the predicted value of 70.66 % and that for the brown, 74.84 (1.84) % against the predicted value of 80.99 %.
Description: This Article was published by International Journal of Food Science and Nutrition Engineering 2014, 4(3): 73-79 DOI: 10.5923/j.food.20140403.03
URI: http://hdl.handle.net/123456789/9754
Appears in Collections:College of Science

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