Microwave-assisted alkaline extraction of galactan-rich rhamnogalacturonan I from potato cell wall by-product.

  title={Microwave-assisted alkaline extraction of galactan-rich rhamnogalacturonan I from potato cell wall by-product.},
  author={Nastaran Khodaei and S. Karboune and V. Orsat},
  journal={Food chemistry},
Galactan-rich rhamnogalacturonan I (RG I), exhibiting promising health benefits, is the most abundant polysaccharide in potato pulp by-product. In the present study, the microwave-assisted alkaline extraction of galactan-rich RG I was investigated. Solid/liquid ratio was identified as the most significant parameter affecting linearly yield and galactose/rhamnose contents. Microwave power and solid/liquid ratio exhibited a significant adverse interactive effect on the yield. Galactose content of… Expand
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Enzymatic extraction of galactan-rich rhamnogalacturonan I from potato cell wall by-product
Abstract Potato cell wall was used as low-value source for the enzymatic extraction of galactan-rich rhamnogalacturonan I (RG I). The effects of selected reaction parameters of endo-polygalacturonaseExpand
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The results reveal the high debranching of arabinan side chains of RG I as compared to the galactan ones under harsh alkaline conditions, and the molecular weight distribution shows that the enzymatic extraction led to the highest proportion of high-molecular weight polysaccharides. Expand
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