Change in the contents of fatty acids and antioxidant capacity of purslane in relation to fertilization

Montoya-García, César Omar; Volke-Haller, Víctor; Trinidad-Santos, Antonio; Villanueva-Verduzco, Clemente

doi:10.1016/j.scienta.2018.02.043

Cited by 25 publications

(9 citation statements)

References 31 publications

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“…Similar results regarding the effect of harvesting stage on the compositions of phenolic compounds and oleracein derivatives have been reported by Lim and Quah [37], who also observed a decrease in total phenolic compounds and oleracein derivatives in leaves with increasing maturity. The differences in the compositions of phenolic compounds and oleracein derivatives could be attributed to differences in the tested genotypes [35,37], to different cultivation regimes and growing conditions [14,18] and also to extraction protocols [38].…”

Section: Resultsmentioning

confidence: 99%

“…Genetic material is also important for obtaining edible parts of high nutritional value, since many studies have suggested significant differences in the chemical compositions of purslane accessions and genotypes, especially regarding fatty acid and oxalic acid content [6,15] and bioactive properties [16]. Cultivation practices such as planting date or fertilization rates can also be proven as useful means towards the modulation of the chemical composition of purslane edible parts [17,18]. In addition, cultivation systems may affect the nutritional value of purslane aerial parts, with soilless culture showing promising results in regards to improving fatty acid composition and decreasing oxalic acid content [19].…”

Section: Introductionmentioning

confidence: 99%

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Nutritional Value, Chemical Composition and Cytotoxic Properties of Common Purslane (Portulaca oleracea L.) in Relation to Harvesting Stage and Plant Part

et al. 2019

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Purslane (Portulaca oleraceae L.) is a widespread weed, which is highly appreciated for its high nutritional value with particular reference to the content in omega-3 fatty acids. In the present study, the nutritional value and chemical composition of purslane plants in relation to plant part and harvesting stage were evaluated. Plants were harvested at three growth stages (29, 43 and 52 days after sowing (DAS)), while the edible aerial parts were separated into stems and leaves. Leaves contained higher amounts of macronutrients than stems, especially at 52 DAS. α-tocopherol was the main isoform, which increased at 52 DAS, as well total tocopherols (values were in the ranges of 197–327 μg/100 g fresh weight (fw) and 302–481 μg/100 g fw, for α-tocopherol and total tocopherols, respectively). Glucose and fructose were the main free sugars in stems and leaves, respectively, whereas stems contained higher amounts of total sugars (values were ranged between 0.83 g and 1.28 g/100 g fw). Oxalic and total organic acid content was higher in leaves, especially at the last harvesting stage (52 DAS; 8.6 g and 30.3 g/100 g fw for oxalic acid and total organic acids, respectively). Regarding the fatty acid content, stems contained mainly palmitic (20.2–21.8%) and linoleic acid (23.02–27.11%), while leaves were abundant in α-linolenic acid (35.4–54.92%). Oleracein A and C were the major oleracein derivatives in leaves, regardless of the harvesting stage (values were in the ranges of 8.2–103.0 mg and 21.2–143 mg/100 g dried weight (dw) for oleraceins A and C, respectively). Cytotoxicity assays showed no hepatotoxicity, with GI50 values being higher than 400 μg/mL for all the harvesting stages and plant parts. In conclusion, early harvesting and the separation of plant parts could increase the nutritional value of the final product through increasing the content of valuable compounds, such as omega-3 fatty acids, phenolic compounds and oleracein derivatives, while at the same time, the contents of anti-nutritional compounds such as oxalic acid are reduced.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nutritional Value, Chemical Composition and Cytotoxic Properties of Common Purslane (Portulaca oleracea L.) in Relation to Harvesting Stage and Plant Part

et al. 2019

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“…In fact, it can be consumed fresh [12,14,24], cooked [25], or dried in tea or soup [19]. Purslane is characterized by its higher nutritional value compared with other cultivated vegetables; it is a rich source of α-tocopherol, β-carotene, ascorbic acid [3,26], polysaccharides, cardiac glycosides, anthraquinone glycosides [27], ω3 fatty acids, and antioxidants [26,[28][29][30][31][32]. It was reported that the major phenolic compounds found in P. oleracea are flavonoids (such as kaempferol, apigenin, myricetin, quercetin, and luteolin) [6,24,33], monoterpene glycosides [34], and alkaloids [8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Pigments, Phenolic and Volatile Compounds, and Antioxidant Activity of a Spontaneous Population of Portulaca oleracea L. Grown in Tunisia

et al. 2020

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Portulaca oleracea L., commonly known as purslane, is a weed with worldwide distribution and considerable medicinal uses due to its high levels of phytochemical compounds. However, until now, few studies have been conducted on the biochemical characterization of P. oleracea grown in Tunisia, a possible area of its origin as other North African countries. Therefore, the aim of the present study was to determine the phytochemical composition and antioxidant potential of leaves and stems from a Tunisian spontaneous population of purslane. Particularly, samples were analyzed for their proximate composition, pigments, and volatiles, whereas ethanolic and aqueous extracts were evaluated for their composition in phenolic compounds and in vitro antioxidant activities. Stems showed higher content of moisture (89.9%) and anthocyanins (4.61 µg g−1 dry matter, DM), whereas leaves revealed higher chlorophyll concentrations (7.42 mg g−1 DM). Significantly higher levels of phenolic compounds and antioxidant capacities (p < 0.05) were obtained in ethanolic extracts, compared with water extracts, irrespective of the analyzed plant part. A high antioxidant activity of stems was obtained, especially when extracted with ethanol. Headspace gas chromatography-mass spectrometry (GC-MS) analyses revealed six volatile classes with monoterpene hydrocarbons, oxygenated monoterpenes, and non-terpene derivatives as the highly represented compounds. Limonene (17.3–32.2%), carvone (38–46%), 2,6-dimethylcyclohexanol (2.2–6.4%), and nonanal (3.4–3.8%) were the most abundant volatiles. Based on the results of the present study, Tunisian purslane should deserve major consideration as an edible vegetable due to its richness in phytochemical compounds and, hence, for its potential health effects.

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“…It has been wildly explored as a natural oriental herb medicine for anti‐inflammatory, prevention of Alzheimer, prevention of arteriosclerosis due to cholesterol reduction, and diabetes (Baradaran Rahimi et al, 2019; Ramadan et al, 2017; Valko et al, 2007). In addition, it also contains a large amount of dopamine, dihydroxyphenylalanine (DOPA), L‐noradrenaline active ingredients, andα‐linolenic acid with excellent anti‐inflammatory effects (Masoodi et al, 2011; Montoya‐García et al, 2018). In this study, the efficacy of P. oleracea methanolic extract (POME) on the cellular invasion associated with MMPs activity as well as the antioxidant effect was investigated in the human fibrosarcoma cells.…”

Section: Introductionmentioning

confidence: 99%

Portulaca oleracea methanol extract inhibits MMP ‐9 via the inactivation of ERK and JNK in human fibrosarcoma cells

Kim

2022

Food Processing Preservation

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Metastasis is the accounts for the largest portion of mortality. This study was to investigate the effect of Portulaca oleracea methanolic extract (POME) on metastasis in human fibrosarcoma cells. POME was analyzed to contain mome inositol, hexadecanoic acid, gamma‐sitosterol, 2‐methoxy‐4‐vinylphenol, neophytadiene, and friedelan‐3‐one by gas chromatography mass spectrometry (GC–MS). Among them, POME contained high amount of polyphenol. Intracellular reactive oxygen species (ROS) was found to be scavenged by the increase of catalase expression through positive modulation of nuclear factor erythroid‐2‐related factor 2 (Nrf2) and Kelch‐like ECH‐associated protein 1 (Keap1) in the presence of POME. POME also inhibited the activation and expression of matrix metalloproteinase‐9 (MMP‐9) by blocking the activation of both extracellular signal‐regulated kinase (ERK) and c‐Jun N‐terminal kinase (JNK) via activator protein 1 (AP‐1) transcription factor. Therefore, the above results suggest that POME, a nature‐friendly phytomedicine, could be used as a potential therapeutic adjuvant against metastasis. Novelty impact statement Portulaca oleracea methanolic extract (POME) increases catalase expression through positive modulation of Nrf2 and Keap1. In addition, POME inhibited the activation and expression of MMP‐9 by blocking the activation of both ERK and JNK via AP‐1 transcription factor. Thus, POME could be utilized as a potential therapeutic adjuvant against metastasis.

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Change in the contents of fatty acids and antioxidant capacity of purslane in relation to fertilization

Cited by 25 publications

References 31 publications

Nutritional Value, Chemical Composition and Cytotoxic Properties of Common Purslane (Portulaca oleracea L.) in Relation to Harvesting Stage and Plant Part

Nutritional Value, Chemical Composition and Cytotoxic Properties of Common Purslane (Portulaca oleracea L.) in Relation to Harvesting Stage and Plant Part

Evaluation of Pigments, Phenolic and Volatile Compounds, and Antioxidant Activity of a Spontaneous Population of Portulaca oleracea L. Grown in Tunisia

Portulaca oleracea methanol extract inhibits MMP ‐9 via the inactivation of ERK and JNK in human fibrosarcoma cells

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