Journal article
Recovering Valuable Bioactive Compounds from Potato Peels with Sequential Hydrothermal Extraction
Waste and biomass valorization, Vol.12(3), pp.1465-1481
03/2021
Handle:
https://hdl.handle.net/2376/117871
Abstract
Potato peel is a major underutilized by-product stream from potato processing industry and a potential source of valuable bioactives such as antioxidants. A Sequential Hydrothermal Extraction (SeqHTE) process was employed for recovering compounds of high commercial value from the peels. Process performance was evaluated in terms of effectiveness, quality and yields of the bioactive extracts. The highest recoveries of polyphenols were 22.48 and 32.87 mg/g dry peel from the Russet Burbank and peel mixture sample, respectively. The extracts displayed significant antioxidant activities, measured as free radical inhibition, ranging from 40 to 92%. Moreover, glycoalkaloids, polysaccharides, and soluble nutrients were also recovered through the SeqHTE process. Alkaloid extraction ranged from 20 to 450 and from 35 to 610 mg/kg dry peel for the Russet Burbank and peel mixture, respectively. Similarly, polysaccharide yield varied from 0 to 35.7 wt%. Separating these compounds significantly reduced solid content in the remaining stream, which may effectively alleviate concerns about adverse environmental impacts and costs associated with handling raw potato peels. These results demonstrated the suitability of SeqHTE as a platform for valorizing waste biomass by fractionating and recovering high value compounds from it.
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Details
- Title
- Recovering Valuable Bioactive Compounds from Potato Peels with Sequential Hydrothermal Extraction
- Creators
- Jose S Martinez-FernandezAyca SekerMaryam DavaritouchaeeXiangyu GuShulin Chen
- Publication Details
- Waste and biomass valorization, Vol.12(3), pp.1465-1481
- Academic Unit
- Biological Systems Engineering, Department of
- Identifiers
- 99900583055201842
- Language
- English
- Resource Type
- Journal article