Optimization of production yield and functional properties of pectin extracted from sugar beet pulp

Cheng Lv, Yong Wang, Li Jun Wang, Dong Li, Benu Adhikari

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Abstract

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 °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.

Original languageEnglish
Pages (from-to)233-240
Number of pages8
JournalCarbohydrate Polymers
Volume95
Issue number1
DOIs
Publication statusPublished - 5 Jun 2013
Externally publishedYes

Keywords

  • Emulsifying property
  • Extraction
  • Response surface methodology (RSM)
  • Sugar beet pulp pectin (SBPP)
  • Tint
  • Yield stress

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