Variation in chemical composition and biological activities of two species of Opuntia flowers at four stages of flowering

Ammar, Imen Ben; Ennouri, Monia; Khemakhem, Bassem; Yangui, Thabèt; Attia, Hamadi

doi:10.1016/j.indcrop.2011.11.027

Cited by 74 publications

(45 citation statements)

References 27 publications

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“…23 The MUFA levels lay below 8% in both species, with C18:1 as the major component. The fatty acids profiles are in general agreement with the findings reported in the cladodes 24 and flowers 25 of Tunisian varieties of Opuntia genus.…”

supporting

confidence: 90%

Phytochemical characterization and antioxidant activity of the cladodes of Opuntia macrorhiza (Engelm.) and Opuntia microdasys (Lehm.)

et al. 2014

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The genus Opuntia (Cactaceae) includes different plants well adapted to arid and semi-arid zones. These species are cultivated under restricted growth conditions, not suitable for the growth of other fruits/vegetables. The cactus pear is a well-known example inside Opuntia genus. Its young cladodes, also known as nopalitos, are frequently consumed and used in folk medicine due to their beneficial effects and phytochemical composition. Herein, hydrophilic and lipophilic extracts from cladodes of Opuntia microdasys and Opuntia macrorhiza were Opuntia species regarding a determined application of its natural extracts/isolated compounds.

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supporting

confidence: 90%

Phytochemical characterization and antioxidant activity of the cladodes of Opuntia macrorhiza (Engelm.) and Opuntia microdasys (Lehm.)

et al. 2014

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“…The gallic acid was used as standard. The results were calculated the total contents of phenolic compounds in ethanol extracts in gram gallic acid equivalents (gGAE) to 100 gram of extracts [14,15].…”

Section: Determination Of Total Phenolic Contentsmentioning

confidence: 99%

“…[% DPPH radical scavenging activity = [{(Absorbance of control -Absorbance of sample or standard}/ Absorbance of control]*100. The results can express as IC 50 value in Pg/mL [14,15].…”

Section: Determination Of Dpph Radical Scavenging Abilitymentioning

confidence: 99%

Phytochemical Screening, Total Phenolic Content, Antioxidant Activities and Cytotoxicity ofDendrobium signatumLeaves

Chimsook

2016

MATEC Web of Conferences

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Abstract. In the present work, the leaves of Dendrobium signatum were extracted with ethanol by maceration; called M; and by sonication-maceration for 30 and 45 mins; called MS30 and MS45. Some biological activities of extracts were investigated. The results showed that the sonication for 30 mins and then maceration 72 hr gave the highest yield at 7.32%. The phytochemical investigation revealed that the bioactive compound from M, MS30 and MS45 were similar which composed of carbohydrates, coumarins, alkaloids, flavonoids, phenolics, sterols and glycosides, respectively. The total phenolic contents were assessed by Folin -Ciocalteau method using gallic acid as the chemical standards. The results showed that MS30 displayed the highest total phenolic contents at the value of 8.83 gGAE/100 g extract. The antioxidant activity was measured using DPPH assay. The results showed that MS30 had the stronger free radical scavenging activity than M and MS45 and had moderate radical scavenging ability compared to ascorbic acid. The cytotoxicity was performed against human cancer cell lines using MTT assay. The results showed that all ethanol extracts displayed weak anticancer activity against MCF-7 and NCI-H187 cell lines, compared to the standard drug doxorubicin. In addition, they showed no activity against KB cell lines.

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“…Besides its organoleptic qualities, the Opuntia genus was previously reported as having antioxidant, anti-inflammatory, antiulcerogenic, anti-fungicide, anti-bacterial and anti-diabetic properties. Furthermore, different botanical components like the pulp, cladode or flower, have also been studied for their chemical composition and nutritional value (Maataoui et al, 2006;Ammar et al, 2012;Morales et al, 2012;Chahdoura et al, 2014a,b). The seeds of Opuntia spp., which are tightly packed together in a mucilaginous structure inside the endocarp, contain high amounts of polyunsaturated fatty acids, especially linoleic and linolenic acids, which are known as having a wide variety of health benefits due to their role as biosynthetic precursors of eicosanoids (Simopoulos, 2002;Mannoubi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Seeds of Opuntia spp. as a novel high potential by-product: Phytochemical characterization and antioxidant activity

Chahdoura

Barreira

Barros

et al. 2015

Industrial Crops and Products

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Most of the nearly 1500 species in Opuntia genus contain health-promoting components.These species are able to grow under adverse conditions, not suitable for other fruits/vegetables. Despite the acknowledge interest of their xoconostle fruits, especially due to their exquisite taste, other botanical parts from Opuntia are being scarcely studied. Herein, it was intended characterize Opuntia spp. seeds for their composition in soluble sugars, organic acids, tocopherols and phenolic compounds, besides evidencing their potential as sources of essential fatty acids. In addition, their antioxidant activity was assessed through different in vitro biochemical assays. Seeds of Opuntia spp. presented phytochemical profiles that allow their classification as a high-interest by-product. The levels of linoleic acid, γ-tocopherol and phenolic acids, as also their high antioxidant activity, are amongst the top characteristics that might endorse Opuntia spp. seeds in novel applications in food or pharmaceutical industries.

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Variation in chemical composition and biological activities of two species of Opuntia flowers at four stages of flowering

Cited by 74 publications

References 27 publications

Phytochemical characterization and antioxidant activity of the cladodes of Opuntia macrorhiza (Engelm.) and Opuntia microdasys (Lehm.)

Phytochemical characterization and antioxidant activity of the cladodes of Opuntia macrorhiza (Engelm.) and Opuntia microdasys (Lehm.)

Phytochemical Screening, Total Phenolic Content, Antioxidant Activities and Cytotoxicity ofDendrobium signatumLeaves

Seeds of Opuntia spp. as a novel high potential by-product: Phytochemical characterization and antioxidant activity

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