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Fructo-Oligosaccharide Production from Inulin Through Partial Citric or Phosphoric Acid Hydrolyses.
MedLine Citation:
PMID:  21663491     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Purified inulin from Dahlia tubers was partially hydrolyzed to form fructo-oligosaccharides by using citric or phosphoric acids (pH, 2.0-2.5) as mild acid catalysts. The ideal kinetic conditions to ensure a high yield of fructo-oligosaccharides relative to free fructose were a temperature range of 85°C-95°C, a hydrolysis time of 15-25 minutes, and a catalyst pH of 2.5. At the higher temperature and the longest hydrolysis time, an inversion of the product ratio occurred. Under these conditions, co-generation of hydroxymethylfurfural occurred, and it was eliminated by activated charcoal. Unlike in classic hydrolysis with hydrochloric or sulfuric acid, deionization of the actual hydrolysates was not necessary because the catalyst neutralization with common bases results in the formation of co-nutrients with alternative uses as foods or fermentation substrates. These whole hydrolysates can be advantageously added as nutraceuticals to carbonated beverages and acidic foods, such as soft drinks and yogurts.
Authors:
José Domingos Fontana; Adelia Grzybowski; Marcela Tiboni; Maurício Passos
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-11
Journal Detail:
Title:  Journal of medicinal food     Volume:  -     ISSN:  1557-7600     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812512     Medline TA:  J Med Food     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1 Biomass Chemo/Biotechnology Laboratory, Department of Pharmacy, Jardim Botânico Campus, Federal University of Paraná (UFPR) , Curitiba, Paraná, Brazil .
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