Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/34941
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Ballesteros, Lina F. | por |
dc.contributor.author | Cerqueira, M. A. | por |
dc.contributor.author | Teixeira, J. A. | por |
dc.contributor.author | Mussatto, Solange I. | por |
dc.date.accessioned | 2015-04-22T13:49:13Z | - |
dc.date.available | 2015-04-22T13:49:13Z | - |
dc.date.issued | 2015-08-20 | - |
dc.identifier.issn | 0144-8617 | por |
dc.identifier.uri | https://hdl.handle.net/1822/34941 | - |
dc.description.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 approx. 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. | por |
dc.description.sponsorship | The authors acknowledge the financial support of the Science and Technology Foundation of Portugal (grant SFRH/BD/80948/2011) and the Strategic Project PEst-OE/EQB/LA0023/2013. The authors also thank the Project "BioInd - Biotechnology and Bioengineering for improved Industrial and Agro-Food processes", REF. NORTE-07-0124-FEDER-000028 Co-funded by the Programa Operacional Regional do Norte (ON.2 - O Novo Norte), QREN, FEDER. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | por |
dc.subject | Antimicrobial activity | por |
dc.subject | Antioxidant capacity | por |
dc.subject | Polysaccharides | por |
dc.subject | Spent coffee grounds | por |
dc.subject | Structural properties | por |
dc.title | Characterization of polysaccharides extracted from spent coffee grounds by alkali pretreatment | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.journals.elsevier.com/carbohydrate-polymers/ | por |
dc.comments | CEB19899 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 347 | por |
oaire.citationEndPage | 354 | por |
oaire.citationConferencePlace | United Kingdom | - |
oaire.citationTitle | Carbohydrate Polymers | por |
oaire.citationVolume | 127 | por |
dc.date.updated | 2015-04-18T21:10:37Z | - |
dc.identifier.eissn | 0144-8617 | - |
dc.identifier.doi | 10.1016/j.carbpol.2015.03.047 | por |
dc.identifier.pmid | 25965493 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Carbohydrate Polymers | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
document_19899_1.pdf | 2,04 MB | Adobe PDF | Ver/Abrir |