Publication
New biophenols in olive mill wastewaters
| Summary: | Olive mill wastewaters (OMW) have been attracting the attention of food and pharmaceutical industries, as it is a potential source of biophenols with a wide range of biological activities. This effluent produced in the olive oil industry contains approximately half of the total phenolic compounds of the olive fruit and it is currently exploited for industrial extraction of hydroxytyrosol [1]. Still, the phenolic composition of OMW is extremely complex, and many compounds are yet unidentified. In this context, the identification of unknown phenolic compounds can encourage the search of new bioactive compounds in OMW and contribute to further valorize this waste. In the present work, six new phenolic compounds were identified in Portuguese olive mill wastewaters. The phenolic extracts of OMW were obtained by methanol and were fractionated on Sep Pack C18 cartridges, by elution of the cartridges with 50% (v/v) methanol. The analysis of the purified fractions by electrospray mass spectrometry in the negative mode showed high relative abundant [M-H]− ions at m/z 539 and m/z 523, corresponding respectively to oleuropein and ligstroside isomers that contain the glucose unit linked to its hydroxytyrosol moiety. Glucoside derivatives of these compounds were also found in the two OMW samples. In particular, the fragmentation pathway of the [M-H]− ion at m/z 863 demonstrated the presence of a diglucoside derivative of the oleuropein isomer, while those of the ions at m/z 685 and m/z 847 were consistent with mono- and a di-glucosides of the ligstroside isomer, respectively. Moreover, the structure of an elenoic derivative of the ion at m/z 685 was also elucidated. Studies regarding the abundance and the iological activities of these compounds are now required to determine their possible industrial exploitation. [1] Agallias A., Magiatis P., Skaltsounis A.-P., Mikros E., Tsarbopoulos A., Gikas E., Spanos I., Manios T. (2007). J. Agric. Food Chem. 55: 2671-2676. |
|---|---|
| Main Authors: | Cardoso, Susana M. |
| Other Authors: | Falcão, Soraia; Peres, António M.; Domingues, Maria R.M. |
| Subject: | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| Year: | 2010 |
| Country: | Portugal |
| Document type: | conference output |
| Access type: | open access |
| Associated institution: | Instituto Politécnico de Bragança |
| Language: | English |
| Origin: | Biblioteca Digital do IPB |
| _version_ | 1867172975952789504 |
|---|---|
| author | Cardoso, Susana M. |
| author2 | Falcão, Soraia Peres, António M. Domingues, Maria R.M. |
| author2_role | author author author |
| author_facet | Cardoso, Susana M. Falcão, Soraia Peres, António M. Domingues, Maria R.M. |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Cardoso, Susana M.\"},{\"Person.name\":\"Falcão, Soraia\",\"Person.identifier.orcid\":\"0000-0003-3735-6951\"},{\"Person.name\":\"Peres, António M.\",\"Person.identifier.orcid\":\"0000-0001-6595-9165\"},{\"Person.name\":\"Domingues, Maria R.M.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Cardoso, Susana M. Falcão, Soraia Peres, António M. Domingues, Maria R.M. |
| datacite.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-07-11T08:46:59Z |
| datacite.date.embargoed.fl_str_mv | 2012-07-11T08:46:59Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| datacite.titles.title.fl_str_mv | New biophenols in olive mill wastewaters |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Cardoso, Susana M. Falcão, Soraia Peres, António M. Domingues, Maria R.M. |
| dc.date.Accepted.fl_str_mv | 2010-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-07-11T08:46:59Z |
| dc.date.embargoed.fl_str_mv | 2012-07-11T08:46:59Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/7176 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| dc.title.fl_str_mv | New biophenols in olive mill wastewaters |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | Olive mill wastewaters (OMW) have been attracting the attention of food and pharmaceutical industries, as it is a potential source of biophenols with a wide range of biological activities. This effluent produced in the olive oil industry contains approximately half of the total phenolic compounds of the olive fruit and it is currently exploited for industrial extraction of hydroxytyrosol [1]. Still, the phenolic composition of OMW is extremely complex, and many compounds are yet unidentified. In this context, the identification of unknown phenolic compounds can encourage the search of new bioactive compounds in OMW and contribute to further valorize this waste. In the present work, six new phenolic compounds were identified in Portuguese olive mill wastewaters. The phenolic extracts of OMW were obtained by methanol and were fractionated on Sep Pack C18 cartridges, by elution of the cartridges with 50% (v/v) methanol. The analysis of the purified fractions by electrospray mass spectrometry in the negative mode showed high relative abundant [M-H]− ions at m/z 539 and m/z 523, corresponding respectively to oleuropein and ligstroside isomers that contain the glucose unit linked to its hydroxytyrosol moiety. Glucoside derivatives of these compounds were also found in the two OMW samples. In particular, the fragmentation pathway of the [M-H]− ion at m/z 863 demonstrated the presence of a diglucoside derivative of the oleuropein isomer, while those of the ions at m/z 685 and m/z 847 were consistent with mono- and a di-glucosides of the ligstroside isomer, respectively. Moreover, the structure of an elenoic derivative of the ion at m/z 685 was also elucidated. Studies regarding the abundance and the iological activities of these compounds are now required to determine their possible industrial exploitation. [1] Agallias A., Magiatis P., Skaltsounis A.-P., Mikros E., Tsarbopoulos A., Gikas E., Spanos I., Manios T. (2007). J. Agric. Food Chem. 55: 2671-2676. |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10198/7176 |
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| institution | Instituto Politécnico de Bragança |
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| language | eng |
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| person_str_mv | Cardoso, Susana M. Falcão, Soraia Falcão, Soraia https://www.ciencia-id.pt/D41A-6BED-4CBB D41A-6BED-4CBB http://orcid.org/0000-0003-3735-6951 0000-0003-3735-6951 Peres, António M. Peres, António M. https://www.ciencia-id.pt/CF16-5443-F420 CF16-5443-F420 http://orcid.org/0000-0001-6595-9165 0000-0001-6595-9165 Domingues, Maria R.M. |
| publishDate | 2010 |
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| spelling | engporOlive mill wastewaters (OMW) have been attracting the attention of food and pharmaceutical industries, as it is a potential source of biophenols with a wide range of biological activities. This effluent produced in the olive oil industry contains approximately half of the total phenolic compounds of the olive fruit and it is currently exploited for industrial extraction of hydroxytyrosol [1]. Still, the phenolic composition of OMW is extremely complex, and many compounds are yet unidentified. In this context, the identification of unknown phenolic compounds can encourage the search of new bioactive compounds in OMW and contribute to further valorize this waste. In the present work, six new phenolic compounds were identified in Portuguese olive mill wastewaters. The phenolic extracts of OMW were obtained by methanol and were fractionated on Sep Pack C18 cartridges, by elution of the cartridges with 50% (v/v) methanol. The analysis of the purified fractions by electrospray mass spectrometry in the negative mode showed high relative abundant [M-H]− ions at m/z 539 and m/z 523, corresponding respectively to oleuropein and ligstroside isomers that contain the glucose unit linked to its hydroxytyrosol moiety. Glucoside derivatives of these compounds were also found in the two OMW samples. In particular, the fragmentation pathway of the [M-H]− ion at m/z 863 demonstrated the presence of a diglucoside derivative of the oleuropein isomer, while those of the ions at m/z 685 and m/z 847 were consistent with mono- and a di-glucosides of the ligstroside isomer, respectively. Moreover, the structure of an elenoic derivative of the ion at m/z 685 was also elucidated. Studies regarding the abundance and the iological activities of these compounds are now required to determine their possible industrial exploitation. [1] Agallias A., Magiatis P., Skaltsounis A.-P., Mikros E., Tsarbopoulos A., Gikas E., Spanos I., Manios T. (2007). J. Agric. Food Chem. 55: 2671-2676.application/pdfporNew biophenols in olive mill wastewatersCardoso, Susana M.PersonalFalcão, SoraiaDSpacehttp://dspace.org/items/5746ab3e-8ffe-4e26-9a41-8392cf031f28DSpacehttp://dspace.org/items/5746ab3e-8ffe-4e26-9a41-8392cf031f28FalcãoSoraiaCiência IDhttps://www.ciencia-id.ptD41A-6BED-4CBBORCIDhttp://orcid.org0000-0003-3735-6951Scopus Author IDhttps://www.scopus.com14832459200PersonalPeres, António M.DSpacehttp://dspace.org/items/7d93be47-8dc4-4413-9304-5b978773d3bbDSpacehttp://dspace.org/items/7d93be47-8dc4-4413-9304-5b978773d3bbPeresAntónio M.Ciência IDhttps://www.ciencia-id.ptCF16-5443-F420ORCIDhttp://orcid.org0000-0001-6595-9165Researcher IDhttps://www.researcherid.comI-8470-2012Scopus Author IDhttps://www.scopus.com7102331969Domingues, Maria R.M.HostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.pt2012-07-11T08:46:59Z20102010-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/7176http://purl.org/coar/access_right/c_abf2open accessPhenolic compoundsOlive mill wastewatersOleuropeinLigstroside1135248 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference objecthttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/ef9285fa-43a8-4210-93bc-e941e878f350/download2010 EFFOST Annual Meeting - Food and HealthPS2.47PS2.4710-12 Novembro 2010, Dublin - Irlanda |
| spellingShingle | New biophenols in olive mill wastewaters Cardoso, Susana M. Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| status | SINGLETON |
| subject.fl_str_mv | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| title | New biophenols in olive mill wastewaters |
| title_full | New biophenols in olive mill wastewaters |
| title_fullStr | New biophenols in olive mill wastewaters |
| title_full_unstemmed | New biophenols in olive mill wastewaters |
| title_short | New biophenols in olive mill wastewaters |
| title_sort | New biophenols in olive mill wastewaters |
| topic | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| topic_facet | Phenolic compounds Olive mill wastewaters Oleuropein Ligstroside |
| url | http://hdl.handle.net/10198/7176 |
| visible | 1 |