Antioxidant capacity and total phenolic contents in hydrophilic extracts of selected Bangladeshi medicinal plants

Tukun, Avonti Basak; Shaheen, Nazma; Banu, C.; Mohiduzzaman, Md.; Islam, Saiful; Begum, Mahfuza

doi:10.1016/s1995-7645(14)60291-1

Cited by 44 publications

(38 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…So it could be concluded that the antioxidant potential of extracts rich in free aglycone forms of phenols was principally attributed to their redox properties, which allowed them to act as F I G U R E 1 Trend in percentage increase in total phenolic contents (TPC), free radical scavenging activity (FRSA), and ferric ion reducing antioxidant power (FRAP) of fermented lupin prepared from non-germinated and germinated seeds reducing agents, donors of hydrogen and quenchers of radicals. In the previously reported literature, the antioxidant capacity of different plant foods is proportional to their TPCs (Alali et al, 2007;Amzad Hossain & Shah, 2015;Tukun et al, 2014), however, this correlation was found weaker in the current study which might be due to the possible interaction of reducing amino acids and peptides with Folin-Ciocalteu reagent (Medina, 2011). In fact, these amino acids and small size peptides are formed after fermentation with microorganisms (Ruth Nazaretha Sandessy et al, 2018).…”

Section: Tpc and Antioxidant Potentialcontrasting

confidence: 67%

Development of a fermented product with higher phenolic compounds and lower anti‐nutritional factors from germinated lupin ( Lupinus angustifolius L.)

Khan

Karnpanit

Nasar‐Abbas

et al. 2018

J Food Process Preserv

View full text Add to dashboard Cite

The nutritional profile of lupin (Lupinus angustifolius L.) seeds has recently increased the scientific importance to develop variety of lupin‐enriched food products. In this study, a fermented food product from lupin was developed as another product to Tempe (a fermented food product made from cereals) family for its improved nutrient profile. For this purpose, whole lupin seeds were subjected to germination at 25°C for 0, 3, 6, 9, and 12 hr. After dehulling and cooking, lupin seeds from each germination period were fermented using Rhizopus oligosporus. Fermentation significantly increased the phenolic contents and antioxidant potential by 300%–450% and 100%–300%, respectively. Decrease in phytate content from 14.2 to 4.7 mg/g DM and tannins from 0.88 to 0.07 mg CE/g DM were also noted. In conclusion, germination of seeds can be used as a pretreatment to obtain higher quantities of bioavailable phytochemical components in fermented lupin. Practical applications The presence of different innovative food products in the market shows the commitment of food scientists to fulfill the consumer demand for food with high nutritive value. The process of fermentation is known to improve the nutrients’ profile, thus helps to meet the consumer demands. The nutritive importance of Australian sweet lupin is known well‐demonstrated for its application in various food products. The outcome of this study could be of great importance to food industry for production of a novel‐fermented food product with improved nutritional value from germinated lupin. The proposed product is relatively cheap compared with traditional Tempe made from soybean due to its lower agronomical production cost. The study could be extended to analyze protein digestibility and to improve the sensory acteristics of product for higher consumer acceptability.

show abstract

Section: Tpc and Antioxidant Potentialcontrasting

confidence: 67%

Development of a fermented product with higher phenolic compounds and lower anti‐nutritional factors from germinated lupin ( Lupinus angustifolius L.)

Khan

Karnpanit

Nasar‐Abbas

et al. 2018

J Food Process Preserv

View full text Add to dashboard Cite

show abstract

“…It has been reported that polyphenolic compounds significantly constitute the active substances in these plants having multiple biological activities both in vitro and in vivo [4] In Algeria, more than 600 species of medicinal and aromatic plants are employed commonly in the practice of traditional medicine, and only a few have been studied phytochemically and evaluated for their biological activity. Rubus fruticosus (Rosaceae) and Zizhyphus vulgaris (Rhamnaceae) are used in the Algerian folkl medicine for hundreds of years as antidiarrheal, anti-inflammatory, local antalgic, warmer and urinary antiseptic [5,6].…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and Anti-Inflammatory Activities of Rubus Fruticosus and Zizyphus Vulgaris Methanol Extracts

Meziti

Bouriche

Hichem

et al. 2017

Int J Pharm Pharm Sci

View full text Add to dashboard Cite

Objective: This report is an attempt to study the phenolic composition of Rubus fruticosus (RFE) and Zizyphus vulgaris (ZVE) methanol extracts and evaluate their antioxidant and anti-inflammatory effects in-vitro and in-vivo. Methods:Total phenolic and total flavonoids contents of extracts were determined by spectrophotometric methods. Phenolic compounds were identified by HPLC-TOF/MS. The antioxidant activities were evaluated in vitro using DPPH, ABTS and FRAP assays. The effect of RFE and ZVE on DNA cleavage induced by H2O2 Results:The phytochemical analysis of these extracts showed that RFE possesses higher polyphenolic and flavonoid content than ZVE. in the same way RFE exerted the highest antioxidant capacity with IC UV-photolysis was also investigated. The antioxidant effect of RFE and ZVE was tested in vivo using the blood total antioxidant capacity test in mice. On the other hand, the anti-inflammatory activity was assessed in vivo using two models of acute inflammation ear edema and vascular permeability. 50 value of 14 µg/ml in DPPH assay, 1.58 mmol of Trolox E/mg extract and 3.39 of mmol FesO4/mg extract in ABTS, and FRAP assay respectively. The studied extracts showed a concentration-dependent protective effect on DNA cleavage induced by H2O2 UV-photolysis. The daily oral administration of 200 mg/kg of RFE or ZVE during three weeks showed an improvement of the blood total antioxidant capacity; the HT50 Conclusion:The results obtained in this investigation showed that RFE possesses strong antioxidant and anti-inflammatory potential in comparison with ZVE, which may be attributed to the presence of polyphenolic phytoconstituents. values were151.45 min and 146.72 min for the groups treated with RFE and ZVE, respectively versus 122.5 min for the control group. The topical application of 2 mg/ear of RFE inhibited the croton oil-induced ear edema by 75.72%, while the inhibition exerted by ZVE was 64.24%. These inhibitions were higher than that of indomethacin, used as a reference. Moreover, the oral administration of 400 mg/kg of RFE inhibited significantly (33.57%) acetic acid induced vascular permeability in mice. However, this effect was lower than this of indomethacin. The inhibition effect exerted by ZVE was not significant.

show abstract

“…It also contains glycosides, flavonoids, saponins and tannins (3) and has water extractable phytochemicals of medicinal importance. The total phenolic content (TPC) and trolox equivalent antioxidant capacity (TEAC) of alligator weed and the contents were 0.56±0.03 mg GAE/g FW and 0.14±0.00 µmol TE/g FW, respectively (4). It has great potential for phytoremediation (5,19,20).…”

Section: Introductionmentioning

confidence: 99%

Health risks of leafy vegetable Alternanthera philoxeroides (Alligator weed) rich in phytochemicals and minerals

Suthari

Kiran

Prasad

2017

The EuroBiotech Journal

View full text Add to dashboard Cite

Alternanthera philoxeroides (alligator weed) grows abundantly in polluted Peri-urban Greater Hyderabad, India. It is collected at no cost and sold in the market as a leafy vegetable in the name of “Ceylon Spinach”. The plant accumulates iron (Fe), manganese (Mn), cadmium (Cd), lead (Pb) and zinc (Zn) in roots and leaves. Soil samples were analyzed for pH, EC, available nitrogen (N), phosphorus (P) and potassium (K) and showed significant metal concentrations of Pb, Mn and Zn, which varied from one location to another. The metal accumulation order in the plants is root>leaf>stem in all the studied sites. The results revealed that the massive roots of alligator weed are effective in the bioconcentrating Fe, Mn, Zn, Pb and Cd, although the plant parts are rich in nutraceuticals like phenolics and antioxidants. Therefore, low income community prefers to consume it as vegetable. However, its consumption as a leafy vegetable can cause health risks.

show abstract

Antioxidant capacity and total phenolic contents in hydrophilic extracts of selected Bangladeshi medicinal plants

Abstract: The results of the present study implies that the analyzed plants possess varying degree of antioxidant capacity and, therefore, the antioxidant potency of these underused plants may be utilized to prevent oxidative damage and oxidative stress related disorders.

Cited by 44 publications

References 19 publications

Development of a fermented product with higher phenolic compounds and lower anti‐nutritional factors from germinated lupin ( Lupinus angustifolius L.)

Development of a fermented product with higher phenolic compounds and lower anti‐nutritional factors from germinated lupin ( Lupinus angustifolius L.)

Antioxidant and Anti-Inflammatory Activities of Rubus Fruticosus and Zizyphus Vulgaris Methanol Extracts

Health risks of leafy vegetable Alternanthera philoxeroides (Alligator weed) rich in phytochemicals and minerals

Contact Info

Product

Resources

About