Phytochemical characterization and antioxidant activity of Opuntia microdasys (Lehm.) Pfeiff flowers in different stages of maturity

Chahdoura, Hassiba; Barreira, João C.M.; Barros, Lillian; Santos‐Buelga, Celestino; Ferreira, Isabel C.F.R.; Achour, Lotfi

doi:10.1016/j.jff.2014.04.011

Cited by 40 publications

(41 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All of the compounds have been previously described by other authors in Opuntia spp samples (Chahdoura et al, 2014;Chougui et al, 2015;Mata et al, 2016;Morales et al, 2015Morales et al, , 2014 Overall, OE sample presented higher concentration of phenolic compounds, being peak 11 (isorhamnetin-O-(deoxyhexosyl-hexoside)) the major compound found (5.99 mg/g).…”

Section: Phenolic and Betalain Compositionsupporting

confidence: 77%

By-product recovery of Opuntia spp. peels: Betalainic and phenolic profiles and bioactive properties

Melgar

Días

Ćirić

et al. 2017

Industrial Crops and Products

Self Cite

View full text Add to dashboard Cite

A B S T R A C TOpuntia spp. are a tropical and subtropical plant that provides both edible green steams and fruits; however, the processing of this fruits results in the accumulation of enormous amount of by-products that can be a source of bioactive and pigmented compounds. Herein, three cactus pear from the species Opuntia ficus-indica var. sanguigna (OS) and gialla (OG) and Opuntia engelmannii (OE) were fully characterized regarding their phenolic and betalain composition and correlated with their antioxidant and antimicrobial activities. The hydroethanolic extracts of OE gave the highest amount of phenolic compounds isorhamentin-O-(deoxyhexosyl-hexoside) and betacianins (betanin); however, no betaxanthins were identified in this sample. This sample also revealed the lowest EC 50 values in all the antioxidant activity assays. Regarding antimicrobial activity, the hydroethanolic extracts of all species revealed to be more active than ampicillin. The pivotal objective of this work was to focus on exploring by-product biocompounds and possible outputs, thus, we could suggest the use of these natural colorants with intrinsic antioxidant and antimicrobial activity, which would grant industries to produce cleaner label products with functional benefits.

show abstract

Section: Phenolic and Betalain Compositionsupporting

confidence: 77%

By-product recovery of Opuntia spp. peels: Betalainic and phenolic profiles and bioactive properties

Melgar

Días

Ćirić

et al. 2017

Industrial Crops and Products

Self Cite

View full text Add to dashboard Cite

show abstract

“…The elution gradient established was isocratic 15% for 5 min, 15% B to 20% B over 5 min, 20-25% B over 10 min, 25-35% B over 10 min, 35-50% for 10 min, and re-equilibration of the column, using a flow rate of 0.5 mL/min. Double online detection was carried out in the DAD using 280 nm and 370 nm as preferred wavelengths and in a mass spectrometer (MS) connected to HPLC system via the DAD cell outlet (Chahdoura et al, 2014).…”

Section: Chemical Characterization Of the Extractsmentioning

confidence: 99%

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Koike

Barreira

Barros

et al. 2015

Innovative Food Science & Emerging Technologies

Self Cite

View full text Add to dashboard Cite

Edible flowers are increasingly used in food preparations, requiring new approaches to improve their conservation and safety. Food irradiation, particularly electron beam and gamma irradiation, is legally recognized to extend shelf life, improve hygienic quality and disinfest foods. Garden nasturtium (Tropaeolum majus L.) flowers are widely used in food preparations, being also known for their antioxidant properties and high content of phenolics. The purpose of this study was to evaluate the dose-response effects of gamma and electron beam irradiation (unirradiated and doses of 0.5, 0.8 and 1 kGy) on its antioxidant activity and phenolic compounds. Kaempferol-O-hexoside-O-hexoside was the most abundant compound, while pelargonidin-3-O-sophoroside was the major anthocyanin. The flowers showed high antioxidant activity, in particular as reducing agents. The interaction among the effects of irradiation dose and irradiation technology was a significant source of variation for all parameters. In general, irradiated samples gave higher antioxidant activity, maybe due to their higher amounts of phenolic compounds. Anthocyanins were the sole compounds negatively affected by irradiation.These differences were reflected in the linear discriminant analysis, which allowed the perfect separation of the applied doses, as also both irradiation technologies. Accordingly, irradiation represents a feasible technology to preserve the quality of edible flowers.

show abstract

“…However, the flower of Opuntia has been little studied owing not only to the difficulty to get them, but also to its limited flowering duration. Recently, Opuntia flowers have gained great attention thanks to their high levels of phytochemicals and biological activities [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…More recent research works have reported the isolation of isorhamnetin glycosylated compounds as the major phenolic compounds of O. ficus-indica flowers grown in Italy [10] and Tunisia [11].…”

Section: Introductionmentioning

confidence: 99%

Phenolic Profiles, Phytchemicals and Mineral Content of Decoction and Infusion of Opuntia ficus-indica Flowers

Ammar

Ennouri

Bouaziz

et al. 2015

Plant Foods Hum Nutr

View full text Add to dashboard Cite

Opuntia flowers are a natural source of biologically active compounds and they have been used as medicinal plant for a long time. Despite the various uses reported for the decoction and infusion of these flowers, their characterization has been discarded. In this study, the decoction and infusion prepared from Opuntia ficus-indica were analyzed with respect to their content in minerals and phytochemicals in order to evaluate its nutritional characteristics. The obtained data proved that these preparations are a rich source of minerals mainly K and Ca. Moreover, the phytochemical analysis revealed that they have important polyphenols, flavonoids and tannins contents with the infusion that presented the highest polyphenol levels. LC-MS analyses of decoction and infusion allowed the characterization of 20 phenolic compounds. It is mainly identified by the presence of flavonols glycosides.

show abstract

Phytochemical characterization and antioxidant activity of Opuntia microdasys (Lehm.) Pfeiff flowers in different stages of maturity

Cited by 40 publications

References 24 publications

By-product recovery of Opuntia spp. peels: Betalainic and phenolic profiles and bioactive properties

By-product recovery of Opuntia spp. peels: Betalainic and phenolic profiles and bioactive properties

Irradiation as a novel approach to improve quality of Tropaeolum majus L. flowers: Benefits in phenolic profiles and antioxidant activity

Phenolic Profiles, Phytchemicals and Mineral Content of Decoction and Infusion of Opuntia ficus-indica Flowers

Contact Info

Product

Resources

About