Document Detail

Technological characterization and stability of Ilex paraguariensis St. Hil. Aquifoliaceae (Maté) spray-dried powder.
MedLine Citation:
PMID:  21370969     Owner:  NLM     Status:  MEDLINE    
The present work was designed to produce an Ilex paraguariensis spray-dried powder (SDP), in semi-industrial scale, in order to characterize its technological and chemical properties as well as to evaluate the thermal stability and photostability of the main polyphenol constituents. The yield of the spray-drying process was satisfactory (67%). The resulting SDP showed to be a material presenting spherical particles with a mean size of 19.6 μm, smooth surface, and good flow properties. The four polyphenol compounds previously reported for the species--neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, and rutin--were identified. Regarding the photostability test, the polyphenols present in the SDP proved to be stable against ultraviolet C radiation for 48 hours, independently of the packaging material. In the thermal stability test, the polyphenols were demonstrated to be hygroscopic and responsive to temperature (40°C) under an atmosphere of high relative humidity (75%) for 4 months, especially when the SDP was conditioned in permeable flasks. These findings demonstrate that heat and residual moisture content play an important role in the stability of the polyphenols and reinforce the relevance of conditioning SDP in humid tight packages under low temperatures.
Francini K J Yatsu; Greice S Borghetti; Valquiria L Bassani
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-03-03
Journal Detail:
Title:  Journal of medicinal food     Volume:  14     ISSN:  1557-7600     ISO Abbreviation:  J Med Food     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-29     Completed Date:  2011-07-12     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  9812512     Medline TA:  J Med Food     Country:  United States    
Other Details:
Languages:  eng     Pagination:  413-9     Citation Subset:  IM    
Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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MeSH Terms
Chlorogenic Acid / analysis
Chromatography, Liquid
Flavonoids / analysis*
Hot Temperature
Ilex paraguariensis / chemistry*
Microscopy, Electron, Scanning
Particle Size
Phenols / analysis*
Plant Extracts / analysis*,  chemistry*
Plant Leaves / chemistry*
Rutin / analysis
Reg. No./Substance:
0/Flavonoids; 0/Phenols; 0/Plant Extracts; 0/Polyphenols; 0/Powders; 153-18-4/Rutin; 327-97-9/Chlorogenic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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