Journal
CARBOHYDRATE POLYMERS
Volume 95, Issue 1, Pages 233-240Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.02.062
Keywords
Response surface methodology (RSM); Sugar beet pulp pectin (SBPP); Extraction; Yield stress; Tint; Emulsifying property
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Funding
- Beijing Municipal Science and Technology Commission Project [D12110003112002]
- China Postdoctoral Science Foundation Project [2012M520462]
- National Natural Science Foundation of China [31000813]
- Chinese Universities Scientific Fund [2012QJ009]
- High Technology Research and Development Program of China [2011AA100802]
- Commonwealth Guild Agricultural Scientific Research Program of China [201003077]
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A central composite design was employed to determine the optimum extraction condition to obtain higher yield, better color attribute as well as better rheological and emulsifying properties in pectin extracted from sugar beet pulp (SBP). A second-order polynomial model was developed for predicting the yield of sugar beet pulp pectin (SBPP) based on the composite design. Response surface methodology (RSM) was used to quantify the integral effect of three processing parameters (extraction temperature, time and pH) on yield, yield stress, color attribute (tint value) and emulsifying activity index (EAI). Through the frequency analysis it was found that the optimal temperature, time and pH value of the extraction were 93.7 degrees C, 3 h, and 1.21, respectively. The yield, yield stress and tint value of the SBPP extracted at the optimal condition were 24.45%, above 0.1 Pa and -6.0, respectively. (c) 2013 Elsevier Ltd. All rights reserved.
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