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Bioactivity and chemical composition of humulus lupulus for cosmetic use

2019Conference object Open access
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dc.contributor.authorMagalhães, Cátia
dc.contributor.authorSpafiu, Paula Raluca
dc.contributor.authorTălău, Diana Floriana
dc.contributor.authorPereira, Olívia R.
dc.contributor.authorSousa, Maria João
dc.date.accessioned2020-06-16T09:32:42Z
dc.date.available2020-06-16T09:32:42Z
dc.date.issued2019
dc.description.abstractHumulus lupulus L. is use as a flavoring and stabilizing agent for beer, giving aromas and flavors. Can also be use in cosmetics,for its antibacterial/antioxidant effect. Prepare a cosmetic gel formulations with phenolic extracts of the flowers and vegetative parts and analyze their stability, antioxidant/antimicrobial activity. Phenolic compounds were extracted with ethanol/water. Humulus lupulus varieties used were (vegetative parts):Chinook, Cascade, Polaris, Centennial, Nugget, and (flowers):Cascade, Polaris, Nugget and Centennial. Gel formulations were prepared, using Carbopol and MethylCellulose, with 3 concentrations: 2.5, 5 and 7.5%. For stability we test:pH, density, temperature, light, centrifuge, vibration and UV spectrophotometric analysis. Organoleptic characteristics:odor, color and aspect was test. Extracts were evaluated for antimicrobial activity by agar diffusion assays of E.coli and Candida albicans. pH have no alteration. Centrifuge and vibration tests, most of the gel formulations did not present phase separation. Density was 1.2-1.3 g/cm3 . Candida Albicans test, have no result but bacteria test shown that E.coli was sensible for all concentrations. Flower hydroalcoolic extract are richest in phenolic compounds than the vegetative parts. Phenols composition is different in all varieties. Gels are stable and can be used as a cosmetic in further studies. Humulus lupulus showed positive antibacterial result.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMagalhães, Cátia; Spafiu, Paula Raluca; Tălău, Diana Floriana; Pereira, Olívia R.; Sousa, M. João (2019). Bioactivity and chemical composition of humulus lupulus for cosmetic use. In Livro de resumos do III Congresso Nacional das Escolas Superiores Agrárias. Viseupt_PT
dc.identifier.urihttp://hdl.handle.net/10198/22061
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectHumulus lupuluspt_PT
dc.subjectPhenolspt_PT
dc.subjectCosmetic gelpt_PT
dc.subjectMicrobiological activitypt_PT
dc.titleBioactivity and chemical composition of humulus lupulus for cosmetic usept_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceViseupt_PT
oaire.citation.titleCongresso Nacional de Escolas Superiores Agrárias -pt_PT
person.familyNamePereira
person.familyNameSousa
person.givenNameOlívia R.
person.givenNameMaria João
person.identifier145216
person.identifier.ciencia-idB312-AF21-D2FA
person.identifier.ciencia-idD91E-3571-3979
person.identifier.orcid0000-0002-6275-3134
person.identifier.orcid0000-0002-9946-4926
person.identifier.ridH-1049-2014
person.identifier.scopus-author-id52264387000
person.identifier.scopus-author-id55230282700
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicatione8fdab9a-3ad6-47e6-b90c-7a37aabcb453
relation.isAuthorOfPublicationda5c7615-9844-4fdf-b4d4-64d0c8e72de0
relation.isAuthorOfPublication.latestForDiscoveryda5c7615-9844-4fdf-b4d4-64d0c8e72de0

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