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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ballesteros, Lina F. Cerqueira, Miguel A. Teixeira, José A. Mussatto, Solange I. |
| Description | Country affiliation: Portugal Author Affiliation: Ballesteros LF ( Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal.); Cerqueira MA ( Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal.); Teixeira JA ( Centre of Biological Engineering, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal.); Mussatto SI ( Department of Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlands. Electronic address: S.I.Mussatto@tudelft.nl.) |
| Abstract | Spent coffee grounds (SCG), obtained during the processing of coffee powder with hot water to make soluble coffee, are the main coffee industry residues and retain approximately seventy percent of the polysaccharides present in the roasted coffee beans. The purpose of this study was to extract polysaccharides from SCG by using an alkali pretreatment with sodium hydroxide at 25°C, and determine the chemical composition, as well as the antioxidant and antimicrobial properties of the extracted polysaccharides. Galactose (60.27%mol) was the dominant sugar in the recovered polysaccharides, followed by arabinose (19.93%mol), glucose (15.37%mol) and mannose (4.43%mol). SCG polysaccharides were thermostable, and presented a typical carbohydrate pattern. Additionally, they showed good antioxidant activity through different methods and presented high antimicrobial percent inhibition against Phoma violacea and Cladosporium cladosporioides (41.27% and 54.60%, respectively). These findings allow identifying possible applications for these polysaccharides in the food industry. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 127 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-01-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Antifungal Agents Pharmacology Antioxidants Coffee Chemistry Fungi Drug Effects Polysaccharides Isolation & Purification Sodium Hydroxide Microbial Sensitivity Tests Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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