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

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

doi:10.1039/c4fo00456f

Cited by 28 publications

(14 citation statements)

References 27 publications

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“…[7] Tender young pads from Opuntia, named "nopal" in Mexico, are green cladodes rich in mucilage (soluble fiber), crude fiber, sugars, organic acids, and phenolic compounds. [8] Microwave-assisted disinfestation treatments and microwave drying have advantages over conventional methods, since volumetric heating does not degrade the fruits biocompounds as much as traditional heating. In order to develop microwave heating methods, the dielectric properties (DPs) of the foods should be obtained.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of guava, mamey sapote, prickly pears, and Nopal in the microwave range

Kataria

Olvera‐Cervantes

Corona‐Chávez

et al. 2017

International Journal of Food Properties

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Dielectric properties (DPs) of selected fruits: guava (Psidium guajava), mamey sapote (Pouteria sapota), red prickly pear (fruit from Opuntia streptacantha), and white prickly pear (fruit from Opuntia ficus-indica), as well as nopal (young cactus pads or cladodes from Opuntia ficus-indica) were studied. DPs were determined using the open-ended coaxial probe method at microwave frequencies (500 MHz-2 GHz) and temperatures of 20, 40, and 60ºC. At 20ºC and 915 MHz for unripe fruits, dielectric constant values ranged from 65.7 to 70.9, while the loss factor had values between 8.4 and 20.7. Both dielectric constant and dielectric loss factor were affected by temperature and frequency (p < 0.05). For example, loss factor for red prickly pear at 2450 MHz decreased from 13.88 at 20ºC to 12.8 at 40ºC and 11.7 at 60ºC. DPs of fruits were also affected by their ripening (quantified through the maturity index). In addition, penetration depth decreased with increasing frequency, ranging from 1.98 to 4.80 cm at 915 MHz and from 0.25 to 0.41 cm at 5800 MHz. Results are valuable to develop further applications with microwave technology for these foods, such as microwave-assisted disinfestation treatments or microwave drying.

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Section: Introductionmentioning

confidence: 99%

Dielectric properties of guava, mamey sapote, prickly pears, and Nopal in the microwave range

Kataria

Olvera‐Cervantes

Corona‐Chávez

et al. 2017

International Journal of Food Properties

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“…, 177 (19), 162 (10), 150(29), 149 (15), 148 (17), 137 (14), 136 (21), 122(12), 109 (8), 98(12), 96(33), 80 (8), 55 (9), 41 (11) 9α-Hydroxymatrine: HPLC-IT-TOF, MS n=2-4 (CE: 50%): 247(52), 150(63), 148(100), 112(20) [1] EI-MS (CE: NA): 264(100), 263(67), 247 (16), 246 (5), 235 (9), 222 (10), 221 (13), 219 (21), 208 (15), 205(84), 193 (19), 178 (8), 166(35), 164(22), 153 (10), 152 (10), 114 (11), 112 (18), 98 (9), 96(43), 55(28), 41(24) […”

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A Hexa-Herbal TCM Decoction Used to Treat Skin Inflammation: An LC-MS-Based Phytochemical Analysis

Chang¹,

Lane²,

Yang³

et al. 2016

Planta Med

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In order to understand the chemical relationship between a traditional hexa-herbal Chinese medicine formula and botanical drugs it is derived from, an analytical platform comprising liquid chromatography coupled with triple quadrupole mass spectrometry and data mining was developed to separate and identify key chemical components. The hexa-herbal formula comprises the rootstock of Scutellaria baicalensis, Rheum tanguticum, Sophora flavescens, the root bark of Dictamnus dasycarpus, the bark of Phellodendron chinense, and the fruit of Kochia scoparia. Seventy-three compounds including alkaloids, anthraquinone derivatives, coumarins, coumarins derivatives, flavonoids, flavone glycosides, naphthalene derivatives, phenylbutanone glucopyranoside, phenolic acids, pterocarpans, stilbenes, stilbenes derivatives, and tannins were putatively identified based on mass measurement and characteristic fragment ions. Among the botanical drugs of the hexa-herbal Chinese medicine formula, the rootstock of R. tanguticum and S. flavescens, bark of P. chinense, and rootstock of S. baicalensis contributed to the majority of the extracted metabolites of the formula decoction. The developed method appeared to be a versatile tool for monitoring chemical constituents in extracts of a traditional Chinese medicine formula in a relatively comprehensive and systematic manner, and helped to understand the importance of the individual botanical drugs within a formulation.

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“…have been recently reported as containing high quantities of polyphenols (especially flavonoids) and a strong antioxidant activity. 6 The interest in plant materials containing phenolic compounds is increasing due to their high antioxidant potency, which may offer protection against different diseases, such as cancer through the inhibition of oxidative damage (known for being a potential cause of mutation). 7 Furthermore, there is a rising awareness regarding the use of volatiles in both the food and the pharmaceutical industries, justifying a systematic examination of plant extracts for these compounds.…”

Section: Introductionmentioning

confidence: 99%

Bioactivity, proximate, mineral and volatile profiles along the flowering stages of Opuntia microdasys (Lehm.): defining potential applications

et al. 2016

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Opuntia spp. flowers have been traditionally used for medical purposes, mostly because of their diversity in bioactive molecules with health promoting properties. The proximate, mineral and volatile compound profiles, together with the cytotoxic and antimicrobial properties were characterized in O. microdasys flowers at different maturity stages, revealing several statistically significant differences. O. microdasys stood out mainly for its high contents of dietary fiber, potassium and camphor, and its high activities against HCT15 cells, Staphylococcus aureus, Aspergillus versicolor and Penicillium funiculosum. The vegetative stage showed the highest cytotoxic and antifungal activities, whilst the full flowering stage was particularly active against bacterial species. The complete dataset has been classified by principal component analysis, achieving clearly identifiable groups for each flowering stage, elucidating also the most distinctive features, and comprehensively profiling each of the assayed stages. The results might be useful to define the best flowering stage considering practical application purposes.

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

Cited by 28 publications

References 27 publications

Dielectric properties of guava, mamey sapote, prickly pears, and Nopal in the microwave range

Dielectric properties of guava, mamey sapote, prickly pears, and Nopal in the microwave range

A Hexa-Herbal TCM Decoction Used to Treat Skin Inflammation: An LC-MS-Based Phytochemical Analysis

Bioactivity, proximate, mineral and volatile profiles along the flowering stages of Opuntia microdasys (Lehm.): defining potential applications

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