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Compositional features and bioactive properties of aloe vera leaf (Fillet, mucilage, and rind) and flower

2019Journal article Open access
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dc.contributor.authorAñibarro Ortega, Mikel
dc.contributor.authorPinela, José
dc.contributor.authorBarros, Lillian
dc.contributor.authorĆirić, Ana
dc.contributor.authorSilva, Soraia P.
dc.contributor.authorCoelho, Elisabete
dc.contributor.authorMocan, Andrei
dc.contributor.authorCalhelha, Ricardo C.
dc.contributor.authorSoković, Marina
dc.contributor.authorCoimbra, Manuel A.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2020-01-06T14:09:46Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2020-01-06T14:09:46Z
dc.date.issued2019
dc.description.abstractThis work aimed to characterize compositional and bioactive features of Aloe vera leaf (fillet, mucilage, and rind) and flower. The edible fillet was analysed for its nutritional value, and all samples were studied for phenolic composition and antioxidant, anti-inflammatory, antimicrobial, tyrosinase inhibition, and cytotoxic activities. Dietary fibre (mainly mannan) and available carbohydrates (mainly free glucose and fructose) were abundant macronutrients in fillet, which also contained high amounts of malic acid (5.75 g/100 g dw) and -tocopherol (4.8 mg/100 g dw). The leaf samples presented similar phenolic profiles, with predominance of chromones and anthrones, and the highest contents were found in mucilage (131 mg/g) and rind (105 mg/g) extracts, which also revealed interesting antioxidant properties. On the other hand, the flower extract was rich in apigenin glycoside derivatives (4.48 mg/g), effective against Pseudomonas aeruginosa (MIC = 0.025 mg/mL and MBC = 0.05 mg/mL) and capable of inhibiting the tyrosinase activity (IC50 = 4.85 mg/mL). The fillet, rind, and flower extracts also showed a powerful antifungal activity against Aspergillus flavus, A. niger, Penicillium funiculosum, and Candida albicans, higher than that of ketoconazole. Thus, the studied Aloe vera samples displayed high potential to be exploited by the food or cosmetic industries, among others.
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER(European Regional Development Fund) under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2019) and the research contracts of J. Pinela, R.C. Calhelha, and L. Barros (national funding by FCT, through the institutional scientific employment program-contract); to the Project AllNat—POCI-01-0145-FEDER-030463 (PTDC/EQU-EPQ/30463/2017), funded by FEDER funds through COMPETE2020—Programa Operacional Competitividade e Internacionalização (POCI)—and by national funds through FCT/MCTES; and to FEDER-Interreg España-Portugal programme for financial support through the project 0377_Iberphenol_6_E.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationAñibarro-Ortega, Mikel; Pinela, José; Barros, Lillian; Ćirić, Ana; Silva, Soraia P.; Coelho, Elisabete; Mocan, Andrei; Calhelha, Ricardo C.; Soković, Marina; Coimbra, Manuel A.; Ferreira, Isabel C.F.R. (2019). Compositional features and bioactive properties of aloe vera leaf (Fillet, mucilage, and rind) and flower. Antioxidants. ISSN 2076-3921. 8, p. 1-21en_EN
dc.identifier.doi10.3390/antiox8100444en_EN
dc.identifier.urihttp://hdl.handle.net/10198/20247
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.relationMountain Research Centre
dc.subjectAloe barbadensis Millen_EN
dc.subjectAntimicrobial activityen_EN
dc.subjectAntioxidant capacityen_EN
dc.subjectCytotoxicityen_EN
dc.subjectNeutral sugarsen_EN
dc.subjectNutritional compositionen_EN
dc.subjectOrganic acidsen_EN
dc.subjectPhenolic compoundsen_EN
dc.subjectTyrosinase inhibitory activityen_EN
dc.titleCompositional features and bioactive properties of aloe vera leaf (Fillet, mucilage, and rind) and floweren_EN
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FEQU-EPQ%2F30463%2F2017/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream9471 - RIDTI
person.familyNameAñibarro-Ortega
person.familyNamePinela
person.familyNameBarros
person.familyNameCalhelha
person.familyNameFerreira
person.givenNameMikel
person.givenNameJosé
person.givenNameLillian
person.givenNameRicardo C.
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
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person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-2835-5079
person.identifier.orcid0000-0001-7523-1637
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0002-6801-4578
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridB-4466-2014
person.identifier.ridJ-3600-2013
person.identifier.ridJ-2172-2014
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id54392272800
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id6507978333
person.identifier.scopus-author-id36868826600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
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