Phytochemical screening and antioxidant activity of some medicinal plants’ crude juices

Farag, R. S.; Abdel-Latif, Mohamed S.; Baky, Hanaa H. Abd El; Tawfeek, Layla S.

doi:10.1016/j.btre.2020.e00536

Cited by 53 publications

(28 citation statements)

References 35 publications

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“…Maize and wheat bran have higher concentration of ferulic acid compared to rye and oat bran (66). Ferulic acid detected in pomegranate peels and leaves of pomegranate, olive, fig and guava (67). Cola nitida and Garcinia kola had compound ferulic acid (68).…”

Section: Nomentioning

confidence: 97%

LC-ESI-QTOF-MS/MS characterization of phenolic compounds from Pyracantha coccinea M.Roem. and their antioxidant capacity

Sharifi‐Rad

Song

Ali

et al. 2021

Cell Mol Biol (Noisy-le-grand)

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Pyracantha coccinea M.Roem. is considered as an important medicinal plant contributing remarkably to health and medicinal benefits. This is attributed to the presence of abundant polyphenols with powerful antioxidant properties. However, little research has been studied on the comprehensive identification and characterization of the phenolic compounds in areal parts of P. coccinea. This study aimed to investigate, characterize, and quantify the phenolic profiles of P. coccinea through liquid chromatography electrospray ionization quadrupole time-of-flight mass spectrometry (LC-ESI-QTOF-MS/MS) and high-performance liquid chromatography-photodiode array (HPLC-PDA. Further, it showed a significantly higher value in total phenolic content (TPC) than that of total flavonoids (TFC) and tannins (TTC). As for antioxidant capacities, P. coccinea presented the highest activity in ABTS (7.12 ± 0.25 mg AAE/g dw) compared with DPPH, FRAP, and TAC assays. The LC-ESI-QTOF-MS/MS analysis detected 28 phenolic compounds, including phenolic acids (12), flavonoids (13), other polyphenols(2), and lignans (1) in P. coccinea samples. The results from HPLC-PDA indicated the chlorogenic acid (11.49 ± 1.89 mg/g) was the most abundant phenolic acid, while kaempferol (14.67 ± 2.17 mg/g) was the predominant flavonoid in P. coccinea. This research confirms the benefits of the P. coccinea plant as a potential source of natural antioxidants for the food and pharmaceutical industries.

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Section: Nomentioning

confidence: 97%

LC-ESI-QTOF-MS/MS characterization of phenolic compounds from Pyracantha coccinea M.Roem. and their antioxidant capacity

Sharifi‐Rad

Song

Ali

et al. 2021

Cell Mol Biol (Noisy-le-grand)

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“…However, free radicals produced during metabolic processes are responsible for numerous ailments in the human body, namely, inflammatory diseases, ischemic diseases, neurological disorders, hemochromatosis, emphysema, acquired immunodeficiency syndrome, and many others [ 61 ]. The presence of phenolic compounds, such as gallic acid, pyrocatechol, taxifolin, ellagic acid, ferulic acid, and several others, is responsible for the antioxidant roles of GLs [ 8 , 13 ]. High-performance liquid chromatography analysis of GL extracts revealed the presence of seven major flavonoids: quercetin, hesperetin, kaempferol, quercitrin, rutin, catchin, and apigenin, while other bioactive compounds, such as kaempfertin, isoquinoline, and corilaginoline alkaloids, were also identified [ 62 ].…”

Section: Biological Activities Of Guava Leaf Extractsmentioning

confidence: 99%

“…The presence of a unique variety of bioactive polyphenolic compounds, like quercetin and other flavonoids, and ferulic, caffeic, and gallic acids, present in guava leaves primarily determine their bioactive and therapeutic properties [ 8 , 13 ]. These phenolic compounds are known as secondary metabolites which exhibit strong antioxidant and immunostimulant activities.…”

Section: Introductionmentioning

confidence: 99%

Guava (Psidium guajava L.) Leaves: Nutritional Composition, Phytochemical Profile, and Health-Promoting Bioactivities

Kumar

Tomar

Amarowicz

et al. 2021

Foods

165

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Psidium guajava (L.) belongs to the Myrtaceae family and it is an important fruit in tropical areas like India, Indonesia, Pakistan, Bangladesh, and South America. The leaves of the guava plant have been studied for their health benefits which are attributed to their plethora of phytochemicals, such as quercetin, avicularin, apigenin, guaijaverin, kaempferol, hyperin, myricetin, gallic acid, catechin, epicatechin, chlorogenic acid, epigallocatechin gallate, and caffeic acid. Extracts from guava leaves (GLs) have been studied for their biological activities, including anticancer, antidiabetic, antioxidant, antidiarrheal, antimicrobial, lipid-lowering, and hepatoprotection activities. In the present review, we comprehensively present the nutritional profile and phytochemical profile of GLs. Further, various bioactivities of the GL extracts are also discussed critically. Considering the phytochemical profile and beneficial effects of GLs, they can potentially be used as an ingredient in the development of functional foods and pharmaceuticals. More detailed clinical trials need to be conducted to establish the efficacy of the GL extracts.

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“…The crude juices of pomegranate leave and peels, fig leaves, guava leaves and olive leaves have been reported to possess large quantities of bioactive compounds. Pomegranate peels crude juice contained high amounts of phenols, flavonoids, tannins and anthocyanins, similarly, displayed strong antioxidant potential (Farag et al 2020).…”

Section: Introductionmentioning

confidence: 94%

Phytochemicals Analysis and Antimicrobial Activities of Echinops Echinatus From Cholistan Desert, Pakistan

Rafay¹

2021

Agrobiol. Records

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Plants have been used as a source of food as well as medicines by the man throughout history. Echinops echinatus was evaluated for phytochemicals and antibacterial activities against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumonia and Anti-urease inhibition assay activities were tested during the study. The laminar flow cabin was cleaned with 70% ethanol. α-glucosidase inhibition activity was performed according to the standard method with slightly modification. Carbohydrates, phenols and tannins were found positive in leaves, stems and roots. Saponins and glycosides were found in flowers, leaves, roots and stems. While roots and stems revealed the presence of steroids. Terpenoids were found in flowers and leaves. The leaves showed the maximum inhibition zone 10mm against K. pneumonia while against E. coli, S. aureus and P. aeruginosa was found inactive. K. pneumoniae, E. coli and P. aeruginosa were resistant to flowers extract. The root extract showed maximum zone of inhibition 18 mm against S. aureus while against P. aeruginosa and K. pneumonia inhibition zone was 15mm and 14mm respectively. The extracts of leaves, flowers, roots and stem showed positive results for α-glucosidase. The roots extract showed maximum inhibition with 75.3±1.5 with IC50 value of 207.3±1.3 for α-glucosidase. Urease inhibitory activity of stem extracts showed maximum inhibition activity 93.71±0.86 with IC50 value 15.63±0.42. While leaves and roots showed almost same activity 92.45±0.63 and 92.63±0.76, respectively. Echinops echinatus could be considered for further studies in the treatment of various ailments as a natural remedy.

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Phytochemical screening and antioxidant activity of some medicinal plants’ crude juices

Abstract: Graphical abstract

Cited by 53 publications

References 35 publications

LC-ESI-QTOF-MS/MS characterization of phenolic compounds from Pyracantha coccinea M.Roem. and their antioxidant capacity

LC-ESI-QTOF-MS/MS characterization of phenolic compounds from Pyracantha coccinea M.Roem. and their antioxidant capacity

Guava (Psidium guajava L.) Leaves: Nutritional Composition, Phytochemical Profile, and Health-Promoting Bioactivities

Phytochemicals Analysis and Antimicrobial Activities of Echinops Echinatus From Cholistan Desert, Pakistan

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