Meadowsweet (Filipendula ulmaria (L.) Maxim.) and dropwort (Filipendula vulgaris Moench) are herbaceous perennials employed in folk medicine for their antirheumatic, antipyretic and anti-ulcer ...properties.
To assess ethnomedicinal claims through investigation of antioxidant, anti-inflammatory and gastroprotective effects of F. ulmaria and F. vulgaris lyophilized flower infusions (LFIs) as well as the F. vulgaris isolated flavonoids spiraeoside, kaempferol 4′-O-glucoside, astragalin 2′-O-gallate, mixture of hyperoside 2′-O-gallate and isoquercitrin 2′-O-gallate, and a tannin tellimagrandin II.
Free radical scavenging activity of the tested samples was determined by examining their ability to neutralize DPPH and OH radicals in vitro, whereas reducing properties were assessed in Ferric Reducing Antioxidant Power (FRAP) assay. Anti-inflammatory activity was studied ex vivo in human platelets by monitoring the effect on eicosanoid biosynthesis. Gastroprotective action was estimated in animal model of acute gastric injury induced by ethanol.
LFIs and spiraeoside exerted activities comparable to those of positive control in DPPH-radical scavenging and FRAP antioxidant assays, whereas notable hydroxyl radical scavenging ability was demonstrated only for spiraeoside (IC50 = 5.1μg/mL). Among tested samples, astragalin 2″-O-gallate (IC50 = 141.1μg/mL) and spiraeoside (IC50 = 4.69μg/mL) the most markedly inhibited production of pro-inflammatory prostaglandin E2 and 12(S)-hydroxy-(5Z,8Z,10E,14Z)-eicosatetraenoic acid in human platelets, respectively. Examination of LFIs (100–300mg/kg, p.o.) gastroprotective action in rats revealed their capacity to preserve mucosal integrity. In addition, spiraeoside (50mg/kg, p.o.) and tellimagrandin II (40mg/kg, p.o.) showed ulcer preventive ability.
Current study supports documented traditional use of investigated herbs and indicates that flavonoid and tannin components are partially responsible for the demonstrated pharmacological activities.
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A comparative in vitro study of the antioxidant potential of natural phenols (zingerone, curcumin, raspberry ketone, magnolol) and their synthesized derivatives was performed. The antioxidant ...efficiency was evaluated in blood serum obtained from healthy individuals, by means of spectrophotometry, before and after the addition of pro-oxidant
-butyl hydroperoxide (TBH). Moreover, the antioxidant effect of an equimolar mixture of curcumin and zingerone was investigated. Interpretation of our results reveals that in the blood serum of healthy individuals curcumin (C1), raspberry ketone (RK1), magnolol (M1) and synthesized derivative of zingerone (Z2) demonstrate remarkable antioxidant effects (
< 0.05). However, in the state of TBH-induced excessive oxidative stress natural magnolol and synthesized derivatives C1, Z1 and RK1 show powerful antioxidant activity and thus can be further investigated to obtain information about their metabolic transformations and their potential influence at the cellular level. Results obtained from measurements in an equimolar mixture of zingerone and curcumin indicate synergism (
< 0.05) between the two compounds. This combination is especially successful due to the fast and efficient neutralization of added pro-oxidant TBH. The commercial availability of turmeric and ginger and their frequent combined use in diet suggest ideas for further broader utilization of the beneficial synergistic effect of their phenolic components.
Blackthorn (
L.) fruit is bluish-black wild fruit traditionally used in nutrition and medicine. It is recently gaining attention as a functional food and an underutilized source of bioactive ...compounds for application in the food and pharmaceutical industry. This study aimed to assess the health-promoting potential of blackthorn fruits from Serbia by examining their chemical composition and in vitro biological activities. Phytochemical analysis of the blackthorn fruit extracts was performed using LC-DAD-ESI-MS. The total phenolic (TPC), total flavonoid (TFC), total anthocyanin (TAC) content, antioxidant capacity, and enzyme inhibitory activities were determined spectrophotometrically. The antimicrobial and prebiotic properties were tested using the broth microdilution method. Twenty-seven phenolics belonging to the classes of hydroxybenzoic and hydroxycinnamic acids derivatives, flavonoids, and anthocyanins were identified, with caffeoylquinic acid as the most abundant compound. Blackthorn extracts were characterized by notable TPCs, TFCs, and TACs, and free radical scavenging and reducing ability. The enzyme inhibitory effects (IC
= 0.43-2.16 mg/mL) were observed towards
-amylase,
-glucosidase, acetylcholinesterase, and tyrosinase. Blackthorn fruit extracts in a concentration-dependent manner (0.3-5 mg/mL) stimulated the growth of several probiotic microorganisms and their mixtures, especially the yeast
. Obtained results support further evaluation of the functional food potential of blackthorn fruit.
This study employed the MTT assay to assess the cytotoxicity of one flavan and two stilbene derivatives isolated from the false indigo-bush (
L.) fruits: 5,7-dihydroxy-8-geranylflavanone (
), ...2-carboxy-3,5-dihydroxy-4-geranylbibenzyl (
), and 2-carboxy-3-hydroxy-4-prenyl-5-methoxybibenzyl (
). The examined compounds reduced the survival of human cervical and colon tumour cells (HeLa, HT-29, HCT-116, and LS174) with IC
values ranging from 10.55 to 147.09 μg/mL, except for
, which did not affect LS174 cells within the tested concentrations. The highest activity was observed for
against HeLa cells, and
also exhibited the weakest effect against normal foetal lung fibroblasts (IC
= 166.11 μg/mL), demonstrating good potency and selectivity. Stilbenes
and
proved efficacious, but lacked selectivity compared to
. Our findings revealed the cytotoxicity of false indigo-bush constituents, justifying further mechanistic and
investigations, particularly on 5,7-dihydroxy-8-geranylflavanone, which displayed considerable
anticancer capacity and a potentially favourable safety profile.
The present study aimed to evaluate the antioxidant capacity of ethanolic extracts from post-harvest sunflower and maize stalk residues, and their impact on the chemical composition, physicochemical ...parameters, lipid oxidative stability, microbiological properties, and sensory characteristics of pork liver pâtés over a 90-day storage period. Four formulations were prepared: a control group (CON), a batch with butylated hydroxytoluene as a synthetic antioxidant (BHT), 1% ethanolic extract from sunflower residues (SSRE), and 1% ethanolic extract from maize residues (MSRE). The MSRE had a higher total phenol content and showed better antioxidant activity relative to the SSRE (
< 0.01). The addition of SSRE decreased the lightness and increased the redness in the pork liver pâtés, with these pâtés showing the highest total color difference compared to the control (
< 0.01). The crop extracts increased the n-6 and total PUFA contents in pâtés and improved the PUFA/SFA ratio (
< 0.01). Formulations containing crop residue extracts showed higher TBARs and POV values than the control and BHT group (
< 0.01), indicating a pro-oxidant effect and accelerated lipid oxidation in pâtés during storage. As far as microbiological quality, the presence of crop residue extracts decreased the total viable count, lactic acid bacteria, and psychotropic aerobic bacteria (
< 0.01). The incorporation of crop extracts in the pork pâtés impaired their sensory quality, particularly color, odor, aroma, and flavor, and decreased their overall acceptability. These results indicated that, while the crop residue extracts were not as effective as synthetic antioxidants in preserving the lipid stability of pâtés, they demonstrated potential for enhancing the microbial quality of this type of meat product.
Meadowsweet (Filipendula ulmaria (L.) Maxim.), and dropwort (Filipendula vulgaris Moench) flowers are traditionally used to treat various ailments, including inflammatory conditions. The aim of the ...present study was to validate the aforementioned ethnomedicinal claim by assessing antihyperalgesic and antiedematous activities and toxicity of orally administered lyophilized flower infusions (LFIs) of F. ulmaria and F. vulgaris in experimental animals.
The phytochemical analysis of LFIs was performed by HPLC-DAD. Antihyperalgesic and antiedematous activities were estimated in a rat model of inflammation induced by intraplantar injection of carrageenan using Von Frey anesthesiometer and plethysmometer, respectively. Moreover, acute oral toxicity of LFIs in mice was evaluated by observing changes in animal behavior and mortality for a period of 14 days following the treatment.
HPLC-DAD analysis revealed the presence of phenolic acids and flavonoids in LFIs, among which spiraeoside was identified as the principal component (56.27±1.03 and 55.67±1.82mg/g of LFI in F. ulmaria and F. vulgaris, respectively). The LFIs of F. ulmaria and F. vulgaris (100–300mg/kg; p.o.) produced significant and dose-dependent antihyperalgesic effects: ED50±SEM values were 164.8±15.4mg/kg (110.3–246.3mg/kg) and 172.2±6.2mg/kg (147.4–201.3mg/kg) for F. ulmaria and F. vulgaris, respectively. On the other hand, LFIs of both species (100–300mg/kg; p.o.) did not significantly reduce edema. Good safety profiles were evidenced in the toxicological study. The median lethal dose (LD50) of the tested extracts is likely to be greater than 2000mg/kg.
The results of the present study support the use of F. ulmaria and F. vulgaris flowers in folk medicine for relieving pain in diseases with an inflammatory component.
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Large quantities of agricultural residues are generated every year. Most of the crop-based residues are underutilized, mainly left to decay on the land or to be burnt, which can lead to an increase ...in a load of environmental pollution. Considering this, different strategies have been developed to use these renewable resources as raw materials for the production of bioactive compounds, their isolation and characterization, and potential application in a wide range of fields, particularly in the food industry as natural preservatives. In this study, the antibacterial efficacy of wheat, sunflower, and maize crop residue ethanolic extracts against six bacterial strains (Salmonella Typhimurium, Salmonella Enteritidis, Staphylococcus aureus, Escherichia coli, Listeria monocytogenes and Yersinia enterocolitica) was evaluated by the broth microdilution method. Used extracts inhibited the growth of selected microorganisms with a minimal inhibitory concentration (MIC) of 320 μg/mL for most of the tested bacteria. L. monocytogenes showed a MIC value of 640 μg/mL for wheat ethanolic extract, and the MIC value of sunflower ethanolic extract for S. Typhimurium was 160 μg/mL. There were no minimum bactericidal concentration (MBC) values for any of the bacteria within the extract’s concentration ranges tested (≤ 2560 μg/mL). The results of the present study indicate that crop residue ethanolic extracts could exhibit bacteriostatic effect and therefore have the potential as natural additives in food preservation.
BACKGROUND: Due to the presence of wide-range phytochemicals, particularly anthocyanins, and their health-promoting activities, black goji fruits (Lycium ruthenicum Murr., LRf) gained attention as ...functional foods or nutraceuticals. However, data on the phytochemical composition and bioactivities of LRf from outside Asian countries are very limited. OBJECTIVE: This study reports the polyphenols profile and in vitro biological activities of LRf cultivated in the southern part of Serbia. METHODS: The total content of polyphenols, flavonoids and anthocyanins of LRf was determined spectrophotometrically, while the polyphenol profile was evaluated by LC-DAD-ESI-MS. Antioxidant and enzyme-inhibitory potentials against α-amylase, α-glucosidase, acetylcholinesterase, tyrosinase, and 15-lipoxygenase properties were determined spectrophotometrically. The prebiotic potential was assessed by the broth microdilution method. RESULTS: Chromatographic analysis confirmed that hydroxycinnamic acid derivatives and acylated anthocyanins were the predominant polyphenols of LRf. In addition to antioxidative activities, Lycium ruthenicum methanol extract (LRe) showed inhibitory effects against all tested enzymes (IC50 = 5.28–7.28 mg/mL). Prebiotic potential on the growth of various microorganisms’ species was observed, with a marked effect on the growth of yeast Saccharomyces boulardii. CONCLUSIONS: The polyphenol pattern of LRf cultivated in Serbia corresponds with the literature data. Observed bioactivities support further phytochemical characterizations of LRf and investigations of their health-promoting effects, especially prebiotic properties.
L. is a well-known aromatic plant used in traditional medicine and the food and cosmetics industry. The aim of this study is to assess the antioxidant, genotoxic, antigenotoxic and cytotoxic ...properties of characterized hyssop essential oils and methanol extracts. Chemical composition was analyzed by gas chromatography - mass spectrometry (GC-MS) and liquid chromatography with diode array detection and mass spectrometry (LC-DAD-MS), respectively. Antioxidant activity was examined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing/antioxidant power (FRAP) tests; genotoxic and antigenotoxic activity were examined by the comet assay, while cytotoxicity was evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide dye (MTT) test against tumor cell lines (SW480, MDA-MB 231, HeLa) and non-transformed human lung fibroblast cell lines (MRC-5). The essential oils were rich in monoterpene hydrocarbons (e.g., limonene; 7.99-23.81%), oxygenated monoterpenes (1,8-cineole; 38.19-67.1%) and phenylpropanoids (methyl eugenol; 0.00-28.33%). In methanol extracts, the most abundant phenolics were chlorogenic and rosmarinic acid (23.35-33.46 and 3.53-17.98 mg/g, respectively). Methanol extracts expressed moderate to weak antioxidant activity (DPPH IC
= 56.04-199.89 µg/mL, FRAP = 0.667-0.959 mmol Fe
/g). Hyssop preparations significantly reduced DNA damage in human whole blood cells, induced by pretreatment with hydrogen peroxide. Methanol extracts exhibited selective and potent dose- and time-dependent activity against the HeLa cell line. Results of the current study demonstrated notable
.
medicinal potential, which calls for further investigation.
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