Comparison of phenolic acids in organically and conventionally grown pac choi (Brassica rapaL.chinensis)

An untargeted approach to profiling of polyphenolics of Brassicaceae microgreens was employed to characterize the phenolic composition in microgreens grown under 8 different treatments of combined amber (590 nm), blue (455 nm), and red (655 nm) LED, using full MS and HRMS/MS-ESI. Hydroxycinnamic acid (HCA) derivatives predominated the pool of phenolics in the microgreens, followed by free phenolic acids and flavonol glycosides/acylglycosides, with most of the HCA derivatives existing as malate esters. Most HCA malates in mustard (Barbarossa) and all HCA malates in mizuna (red kingdom)/ radish (red Rambo, organic) were significantly decreased under most treatments, whereas all malates were overall increased under combined lighting in radish (red Rambo), mustard (Garnet Giant), mizuna (organic), Pac choi (red Pac) and mustard (Scarlet Frills). The present study demonstrated that amber in combination with blue and red LED contributed to the altered phenolic profile and increase and/or decrease in quantity of certain phenolic compounds, particularly the HCA malates.

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Flavonoids and phenolic acids in adenostoma, a dominant genus of the californian chaparral

Phytochemistry ◽

10.1016/s0031-9422(00)80599-3 ◽

1985 ◽

Vol 23 (12) ◽

pp. 2889-2891

Author(s):

M Proksch

Keyword(s):

Phenolic Acids

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Screening of sage and thyme plant extracts for some phenolic acids and rutin

Planta Medica ◽

10.1055/s-0030-1264592 ◽

2010 ◽

Vol 76 (12) ◽

Author(s):

S Huseinovic ◽

M Salihovic ◽

A Topcagic ◽

K Kalcher ◽

S Cavar ◽

...

Keyword(s):

Phenolic Acids ◽

Plant Extracts

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Content of some phenolic acids and rutin in the leaves and roots of Symphytum officinale L.

Planta Medica ◽

10.1055/s-0030-1264591 ◽

2010 ◽

Vol 76 (12) ◽

Cited By ~ 7

Author(s):

I Tahirovic ◽

Z Rimpapa ◽

S Cavar ◽

S Huseinovic ◽

S Muradic ◽

...

Keyword(s):

Phenolic Acids ◽

Symphytum Officinale ◽

Leaves And Roots

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Phenolic acids and C-glycoside flavonoids in Merostachys riedeliana (bamboo)

Planta Medica ◽

10.1055/s-0034-1394976 ◽

2014 ◽

Vol 80 (16) ◽

Cited By ~ 1

Author(s):

L Torres ◽

C José ◽

R Shirasuna ◽

MT Grombone-Guaratini

Keyword(s):

Phenolic Acids

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Inhibition by Phenol and Phenolic Acids of Platelet Release Reaction

Thrombosis and Haemostasis ◽

10.1055/s-0038-1649082 ◽

1973 ◽

Vol 30 (02) ◽

pp. 334-338 ◽

Cited By ~ 1

Author(s):

Felisa C. Molinas

Keyword(s):

Renal Failure ◽

Phenolic Compounds ◽

Phenolic Acids ◽

Platelet Function ◽

Deleterious Effect ◽

Release Reaction ◽

Contributory Factors ◽

Adp Release ◽

Platelet Release

SummaryIt has been postulated that the high phenol and phenolic acids plasmatic levels found in patients with chronic renal failure are contributory factors in the abnormal platelet function described in these patients. This hypothesis was corroborated by “in vitro” studies showing the deleterious effect of these compounds on certain platelet function after pre-incubation of PRP with phenol and phenolic compounds. The present studies were conducted to determine the influence of phenolic compounds on platelet release reaction. It was found that phenol inhibited from 62.5 to 100% the effect of the aggregating agents thrombin, adrenaline and ADP on platelet 5-HT-14C release. The phenolic acids p-, m-, and o-HPAA inhibited from 36.35 to 94.8% adrenaline and ADP-induced platelet 5-HT-14C release. Adrenaline-induced platelet ADP release was inhibited from 27.45 to 38.10% by the phenolic compounds. These findings confirm the hypothesis that phenolic compounds interfere with platelet function through the inhibition of the release reaction.

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PHYTOCHEMICAL SCREENING, ANTIOXIDANT, ANTI-CYTOTOXIC AND ANTICANCER EFFECTS OF GALINSOGA PARVIFLORA AND VERNONIA POLYANTHES (ASTERACEAE) EXTRACTS

International Journal of Research -GRANTHAALAYAH ◽

10.29121/granthaalayah.v8.i10.2020.1782 ◽

2020 ◽

Vol 8 (10) ◽

pp. 84-98

Author(s):

Sula M. V. Feleti ◽

Renê L. Aleluia ◽

Suiany V. Gervásio ◽

Jean Carlos V. Dutra ◽

Jessica R. P. Oliveira ◽

...

Keyword(s):

Fatty Acids ◽

Phenolic Acids ◽

Unsaturated Fatty Acids ◽

Biological Effects ◽

Human Lymphocytes ◽

Chemical Characterization ◽

Total Content ◽

Ags Cells ◽

Ft Icr Ms ◽

Ft Icr

The study was designed to investigate the chemical composition and the biological effects of G. parviflora and V. polyanthes ethanolic extracts in vitro. Total content of phenols, flavonoids and tannins was quantified by spectrophotometry; chemical characterization was permed by mass spectrometry (ESI (-) FT-ICR MS and APCI (+) FT-ICR MS analysis). Antioxidant activities were determined by FRAP and Fe2+ chelating methods. Extracts cytotoxicity was evaluated in human lymphocytes, sarcoma-180 (S-180) and human gastric adenocarcinoma (AGS) cells, by MTT assay. V. polyanthes presented higher total content of tannins and G. parviflora presented higher amount of phenols and flavonoids. Chemical characterization showed the presence of flavonoids, phenolic acids and sesquiterpene lactones in V. polyanthes extract, and steroids, phenolic acids and fatty acids (Poly Unsaturated Fatty Acids - PUFA) in G. parviflora extract. V. polyanthes extract stood out in the Fe2+ chelation test. G. parviflora extract did not present outstanding antioxidant results in the tested protocols. Both species showed a tendency to promote cytotoxicity in human lymphocyte cells. Regarding the antiproliferative effect, both species were able to reduce S-180 cell viability and G. parviflora extract showed high antiproliferative potential in the assay with AGS cells. These findings reinforce the medicinal use of these plants, as well as suggest their potential use for the development of new drugs and for the treatment of cancers.

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