Microwave superheated water extraction of polysaccharides from spent coffee grounds
► Microwave assisted extraction (MAE) allows the recovery of arabinogalactans (AG). ► Re-extraction of the material left (MAE2) allowed to recover galactomannans (GM). ► 74% and 66% of total galactose and mannose could be extracted from spent coffee grounds. ► Oligosaccharides, mainly derived from G...
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| Veröffentlicht in: | Carbohydrate polymers 2013-04, Vol.94 (1), p.626-633 |
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| creator | Passos, Cláudia P. Coimbra, Manuel A. |
| description | ► Microwave assisted extraction (MAE) allows the recovery of arabinogalactans (AG). ► Re-extraction of the material left (MAE2) allowed to recover galactomannans (GM). ► 74% and 66% of total galactose and mannose could be extracted from spent coffee grounds. ► Oligosaccharides, mainly derived from GM, can be obtained in MAE2. ► Different proportions of GM/AG can be obtained depending on operating conditions.
The spent coffee grounds (SCG) are a food industry by-product that can be used as a rich source of polysaccharides. In the present work, the feasibility of microwave superheated water extraction of polysaccharides from SCG was studied. Different ratios of mass of SCG to water, from 1:30 to 1:5 (g:mL) were used for a total volume of 80mL. Although the amount of material extracted/batch (MAE1) increased with the increase of the concentration of the sample, the amount of polysaccharides achieved a maximum of 0.57g/batch for 1:10. Glycosidic-linkage composition showed that all extraction conditions allowed to obtain mainly arabinogalactans. When the unextracted insoluble material was re-extracted under the same conditions (MAE2), a further extraction of polysaccharides was observed (0.34g/batch for 1:10), mainly galactomannans. Also, a high amount of oligosaccharides, mainly derived from galactomannans, can be obtained in MAE2 (0.96g/batch for 1:10). This technology allows to obtain galactomannans and arabinogalactans in proportions that are dependent on the operating conditions. |
| doi_str_mv | 10.1016/j.carbpol.2013.01.088 |
| format | Article |
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The spent coffee grounds (SCG) are a food industry by-product that can be used as a rich source of polysaccharides. In the present work, the feasibility of microwave superheated water extraction of polysaccharides from SCG was studied. Different ratios of mass of SCG to water, from 1:30 to 1:5 (g:mL) were used for a total volume of 80mL. Although the amount of material extracted/batch (MAE1) increased with the increase of the concentration of the sample, the amount of polysaccharides achieved a maximum of 0.57g/batch for 1:10. Glycosidic-linkage composition showed that all extraction conditions allowed to obtain mainly arabinogalactans. When the unextracted insoluble material was re-extracted under the same conditions (MAE2), a further extraction of polysaccharides was observed (0.34g/batch for 1:10), mainly galactomannans. Also, a high amount of oligosaccharides, mainly derived from galactomannans, can be obtained in MAE2 (0.96g/batch for 1:10). This technology allows to obtain galactomannans and arabinogalactans in proportions that are dependent on the operating conditions.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/j.carbpol.2013.01.088</identifier><identifier>PMID: 23544583</identifier><identifier>CODEN: CAPOD8</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Arabinogalactans ; Biological and medical sciences ; Carbohydrate Conformation ; Coffee - chemistry ; Coffee residue ; Ethanol - chemistry ; Exact sciences and technology ; Food industries ; food industry ; Fractional Precipitation ; Fundamental and applied biological sciences. Psychology ; Galactans - chemistry ; Galactans - isolation & purification ; Galactomannans ; Hot Temperature ; industrial byproducts ; Mannans - chemistry ; Mannans - isolation & purification ; Microwave assisted extraction ; Microwaves ; Natural polymers ; oligosaccharides ; Physicochemistry of polymers ; Polysaccharides - chemistry ; Polysaccharides - isolation & purification ; Solid Phase Extraction - methods ; Solvents - chemistry ; Starch and polysaccharides ; Structural analysis ; Use and upgrading of agricultural and food by-products. Biotechnology ; Waste Products ; Water - chemistry</subject><ispartof>Carbohydrate polymers, 2013-04, Vol.94 (1), p.626-633</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c419t-e1bcfeccfaf8f6423dcb939698b65e5fbd9a1bacc43bb5a01e239c6bf41a67743</citedby><cites>FETCH-LOGICAL-c419t-e1bcfeccfaf8f6423dcb939698b65e5fbd9a1bacc43bb5a01e239c6bf41a67743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.carbpol.2013.01.088$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27239362$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23544583$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Passos, Cláudia P.</creatorcontrib><creatorcontrib>Coimbra, Manuel A.</creatorcontrib><title>Microwave superheated water extraction of polysaccharides from spent coffee grounds</title><title>Carbohydrate polymers</title><addtitle>Carbohydr Polym</addtitle><description>► Microwave assisted extraction (MAE) allows the recovery of arabinogalactans (AG). ► Re-extraction of the material left (MAE2) allowed to recover galactomannans (GM). ► 74% and 66% of total galactose and mannose could be extracted from spent coffee grounds. ► Oligosaccharides, mainly derived from GM, can be obtained in MAE2. ► Different proportions of GM/AG can be obtained depending on operating conditions.
The spent coffee grounds (SCG) are a food industry by-product that can be used as a rich source of polysaccharides. In the present work, the feasibility of microwave superheated water extraction of polysaccharides from SCG was studied. Different ratios of mass of SCG to water, from 1:30 to 1:5 (g:mL) were used for a total volume of 80mL. Although the amount of material extracted/batch (MAE1) increased with the increase of the concentration of the sample, the amount of polysaccharides achieved a maximum of 0.57g/batch for 1:10. Glycosidic-linkage composition showed that all extraction conditions allowed to obtain mainly arabinogalactans. When the unextracted insoluble material was re-extracted under the same conditions (MAE2), a further extraction of polysaccharides was observed (0.34g/batch for 1:10), mainly galactomannans. Also, a high amount of oligosaccharides, mainly derived from galactomannans, can be obtained in MAE2 (0.96g/batch for 1:10). This technology allows to obtain galactomannans and arabinogalactans in proportions that are dependent on the operating conditions.</description><subject>Applied sciences</subject><subject>Arabinogalactans</subject><subject>Biological and medical sciences</subject><subject>Carbohydrate Conformation</subject><subject>Coffee - chemistry</subject><subject>Coffee residue</subject><subject>Ethanol - chemistry</subject><subject>Exact sciences and technology</subject><subject>Food industries</subject><subject>food industry</subject><subject>Fractional Precipitation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Galactans - chemistry</subject><subject>Galactans - isolation & purification</subject><subject>Galactomannans</subject><subject>Hot Temperature</subject><subject>industrial byproducts</subject><subject>Mannans - chemistry</subject><subject>Mannans - isolation & purification</subject><subject>Microwave assisted extraction</subject><subject>Microwaves</subject><subject>Natural polymers</subject><subject>oligosaccharides</subject><subject>Physicochemistry of polymers</subject><subject>Polysaccharides - chemistry</subject><subject>Polysaccharides - isolation & purification</subject><subject>Solid Phase Extraction - methods</subject><subject>Solvents - chemistry</subject><subject>Starch and polysaccharides</subject><subject>Structural analysis</subject><subject>Use and upgrading of agricultural and food by-products. Biotechnology</subject><subject>Waste Products</subject><subject>Water - chemistry</subject><issn>0144-8617</issn><issn>1879-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1v1DAQhi1URLeFnwDkUqmXBE_sOMmpqiq-pCIOpWdr7Ixbr7JxsJOW_ntc7QJHfBhfnpl3_Jixt8Ar4KA-bCuL0cxhrGoOouJQ8a57wTbQtX0JQsojtuEgZdkpaI_ZSUpbno8C_ood16KRsunEht188zaGR3ygIq0zxXvChYbiMddY0K8lol18mIrgipz1lNDae4x-oFS4GHZFmmlaChucIyruYlinIb1mLx2Oid4c7lN2--njj6sv5fX3z1-vLq9LK6FfSgJjHVnr0HVOyVoM1vSiV31nVEONM0OPYHKgFMY0yIFq0VtlnARUbSvFKTvfz51j-LlSWvTOJ0vjiBOFNWkQtag74EpktNmj-bEpRXJ6jn6H8UkD188-9VYffOpnn5qDzj5z37tDxGp2NPzt-iMwA2cHAJPF0UWcrE__uDbvLFSdufd7zmHQeBczc3uTk1T-k6bumzYTF3uCsrIHT1En62myNPhIdtFD8P9Z9jf6BKHN</recordid><startdate>20130415</startdate><enddate>20130415</enddate><creator>Passos, Cláudia P.</creator><creator>Coimbra, Manuel A.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20130415</creationdate><title>Microwave superheated water extraction of polysaccharides from spent coffee grounds</title><author>Passos, Cláudia P. ; Coimbra, Manuel A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c419t-e1bcfeccfaf8f6423dcb939698b65e5fbd9a1bacc43bb5a01e239c6bf41a67743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Arabinogalactans</topic><topic>Biological and medical sciences</topic><topic>Carbohydrate Conformation</topic><topic>Coffee - chemistry</topic><topic>Coffee residue</topic><topic>Ethanol - chemistry</topic><topic>Exact sciences and technology</topic><topic>Food industries</topic><topic>food industry</topic><topic>Fractional Precipitation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Galactans - chemistry</topic><topic>Galactans - isolation & purification</topic><topic>Galactomannans</topic><topic>Hot Temperature</topic><topic>industrial byproducts</topic><topic>Mannans - chemistry</topic><topic>Mannans - isolation & purification</topic><topic>Microwave assisted extraction</topic><topic>Microwaves</topic><topic>Natural polymers</topic><topic>oligosaccharides</topic><topic>Physicochemistry of polymers</topic><topic>Polysaccharides - chemistry</topic><topic>Polysaccharides - isolation & purification</topic><topic>Solid Phase Extraction - methods</topic><topic>Solvents - chemistry</topic><topic>Starch and polysaccharides</topic><topic>Structural analysis</topic><topic>Use and upgrading of agricultural and food by-products. Biotechnology</topic><topic>Waste Products</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Passos, Cláudia P.</creatorcontrib><creatorcontrib>Coimbra, Manuel A.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Carbohydrate polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Passos, Cláudia P.</au><au>Coimbra, Manuel A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microwave superheated water extraction of polysaccharides from spent coffee grounds</atitle><jtitle>Carbohydrate polymers</jtitle><addtitle>Carbohydr Polym</addtitle><date>2013-04-15</date><risdate>2013</risdate><volume>94</volume><issue>1</issue><spage>626</spage><epage>633</epage><pages>626-633</pages><issn>0144-8617</issn><eissn>1879-1344</eissn><coden>CAPOD8</coden><abstract>► Microwave assisted extraction (MAE) allows the recovery of arabinogalactans (AG). ► Re-extraction of the material left (MAE2) allowed to recover galactomannans (GM). ► 74% and 66% of total galactose and mannose could be extracted from spent coffee grounds. ► Oligosaccharides, mainly derived from GM, can be obtained in MAE2. ► Different proportions of GM/AG can be obtained depending on operating conditions.
The spent coffee grounds (SCG) are a food industry by-product that can be used as a rich source of polysaccharides. In the present work, the feasibility of microwave superheated water extraction of polysaccharides from SCG was studied. Different ratios of mass of SCG to water, from 1:30 to 1:5 (g:mL) were used for a total volume of 80mL. Although the amount of material extracted/batch (MAE1) increased with the increase of the concentration of the sample, the amount of polysaccharides achieved a maximum of 0.57g/batch for 1:10. Glycosidic-linkage composition showed that all extraction conditions allowed to obtain mainly arabinogalactans. When the unextracted insoluble material was re-extracted under the same conditions (MAE2), a further extraction of polysaccharides was observed (0.34g/batch for 1:10), mainly galactomannans. Also, a high amount of oligosaccharides, mainly derived from galactomannans, can be obtained in MAE2 (0.96g/batch for 1:10). This technology allows to obtain galactomannans and arabinogalactans in proportions that are dependent on the operating conditions.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23544583</pmid><doi>10.1016/j.carbpol.2013.01.088</doi><tpages>8</tpages></addata></record> |
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| ispartof | Carbohydrate polymers, 2013-04, Vol.94 (1), p.626-633 |
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| subjects | Applied sciences Arabinogalactans Biological and medical sciences Carbohydrate Conformation Coffee - chemistry Coffee residue Ethanol - chemistry Exact sciences and technology Food industries food industry Fractional Precipitation Fundamental and applied biological sciences. Psychology Galactans - chemistry Galactans - isolation & purification Galactomannans Hot Temperature industrial byproducts Mannans - chemistry Mannans - isolation & purification Microwave assisted extraction Microwaves Natural polymers oligosaccharides Physicochemistry of polymers Polysaccharides - chemistry Polysaccharides - isolation & purification Solid Phase Extraction - methods Solvents - chemistry Starch and polysaccharides Structural analysis Use and upgrading of agricultural and food by-products. Biotechnology Waste Products Water - chemistry |
| title | Microwave superheated water extraction of polysaccharides from spent coffee grounds |
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