scholarly journals Enrichment of Mango Fruit Leathers with Natal Plum (Carissa macrocarpa) Improves Their Phytochemical Content and Antioxidant Properties

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 431
Author(s):  
Tshudufhadzo Mphaphuli ◽  
Vimbainashe E. Manhivi ◽  
Retha Slabbert ◽  
Yasmina Sultanbawa ◽  
Dharini Sivakumar

Natal plum fruit (Carissa macrocarpa) is indigenous to South Africa and a rich source of cyanidin derivatives. Indigenous fruits play a major role in food diversification and sustaining food security in the Southern African region. Agro-processing of indigenous are practiced adopted by the rural African communities in order to reduce the postharvest wastage of fruit commodities. In the current study, Natal plum was added to mango pulp at different ratios (mango and Natal plum (5:1, 3:1, 2:1)) to develop a healthy-functional snack (fruit leather). The effects of added Natal plum on the availability of antioxidant constituents and in vitro antioxidant properties of a mango-based fruit leather were evaluated by comparing with mango fruit leather. Fruit leather containing mango and Natal plum (2:1) retained the highest content of cyanidin-3-O-glucoside chloride, cyanidin- 3-O-β-sambubioside, epicatechin, apigenin, kaempferol, luteolin, quercetin-3-O-rhamnosyl glucoside, catechin, quinic, and chlorogenic acids, and in vitro antioxidant activity. Proximate analysis showed that 100 g of fruit leather (2:1) contained 63.51 g carbohydrate, 40.85 g total sugar, 0.36 g fat, and 269.88 cal. Therefore, enrichment of mango fruit leather with Natal plum (2:1) increases its phytochemical content and dietary phytochemical intake, especially for school children and adolescents.

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
GITA MISHRA ◽  
HEMESHWER KUMAR CHANDRA ◽  
NISHA SAHU ◽  
SATENDRA KUMAR NIRALA ◽  
MONIKA BHADAURIA

Pergularia daemia belongs to the family Asclepiadaceae, known to have anticancer, anti-inflammatory activity. Aim of the present study was to evaluate qualitative and quantitative phytochemical and antioxidant properties of ethanolic extracts of leaf, stem and root parts of P. daemia . Preliminary phytochemical analysis and in vitro antioxidant properties were evaluated by standard methods. The qualitative phytochemical analysis of P. daemia showed presence of flavonoids, tannins, alkaloid, phytosterol, carbohydrate, phenol, saponin, glycosides, terpenoids, steroids proteins and reducing sugars. Quantitative analysis showed polyphenol, flavonoid, flavonone, flavone and flavonol in P. daemia leaves, stem and root in considerable quantity. The in vitro antioxidant activity of P. daemia clearly demonstrated that leaf, stem and root parts have prominent antioxidant properties and was effective in scavenging free radicals.


2021 ◽  
Vol 25 (1) ◽  
pp. 75-79
Author(s):  
S.O. Olubodun ◽  
G.E. Eriyamremu ◽  
M.E. Ayevbuomwan ◽  
C.I. Nzoputa

The presence of various bioactive components makes it necessary to analyse plants for their potential to act as a source of useful treatments and cures for many inflammatory, infectious and pathogenic diseases. This study was carried out to determine phytochemicals and in-vitro antioxidant activities of the leaf extracts of Acalypha godseffiana. The leaves of A. godseffiana were collected, dried, pulverized and extracted separately with methanol and water using maceration method. The extract was concentrated in vacuo with rotary evaporator at 40oC. The extracts were subjected to quantitative phytochemical analysis and different anti-oxidant analytical procedures like FRAP, DPPH etc to determine the radical scavenging capabilities. The results of phytochemical analysis estimated the quantities and revealed the presence of alkaloids, flavonoids, tannins, saponins and terpenoids which varied in both extracts. The methanol and aqueous extracts exhibited antioxidant activities with relatively high IC50 (IC50 = 3.67 ìg/ml and 4.42ìg/ml respectively) which accounted for a low free radical-scavenging activity when compared with the reference antioxidant, vitamin C (IC50 = 1.51ìg/ml). The results of the study indicates that A. godseffiana leaf extracts contain secondary metabolites and possesses antioxidant properties.


Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 505
Author(s):  
Valentina Amodeo ◽  
Mariangela Marrelli ◽  
Veronica Pontieri ◽  
Roberta Cassano ◽  
Sonia Trombino ◽  
...  

Spontaneous edible plants have an old history of use in popular traditions all around the world, and the rediscovery of these species could also be useful for the search of new drugs. Chenopodium album L. (Amaranthaceae) and Sisymbrium officinale (L.) Scop. (Brassicaceae) are two annual plants traditionally used both as food and herbal remedies against inflammatory disorders. In this work, the potential anti-inflammatory and anti-arthritic activities of these plant species have been investigated, together with their antioxidant potential. The phytochemical composition was assessed as well by means of gas chromatography coupled to mass spectrometry (GC-MS) and high performance thin layer chromatography (HPTLC). The antioxidant properties were assessed using the DPPH and β-carotene bleaching test. The ability of extracts to protect against lipid peroxidation was also examined in rat-liver microsomal membranes. All the samples showed a preservation of antioxidant activity up to 60 min. A significant inhibitory activity on the production of the pro-inflammatory mediator nitric oxide was induced in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells by the dichloromethane fraction of C. album extract, with an IC50 value equal to 81.7 ± 0.9 μg/mL. The same sample showed also a concentration-dependent anti-denaturation effect on heat-treated bovine serum albumin (IC50 = 975.6 ± 5.5 μg/mL), even if the best in vitro anti-arthritic activity was observed for the dichloromethane fraction of S. officinale extract, with an IC50 value of 680.9 ± 13.2 μg/mL.


2020 ◽  
Vol 12 (4) ◽  
pp. 621-632
Author(s):  
A. D. Pal ◽  
T. M. Zakir

The present study was designed to document the nutritional and functional properties of Ceylon Spinach, Mustard as well as Pumpkin leaves. These samples were selected owing to their economic affordability and utilization within the local population. Proximate analysis revealed a significant percentage of minerals, proteins, carbohydrates and vitamin C in all the leaf extracts. Phytochemical screening displayed Ceylon Spinach, Pumpkin and Mustard leaves to be rich sources of polyphenols (106.6, 76.24 and 89.86 mg/100 g) and alkaloids (12.8 %, 13.2 % and 16.8 %) respectively. Furthermore, these edible leaves could effectively scavenge 2, 2-diphenyl-1-picryl-hydrazyl (DPPH) and hydrogen peroxide (H2O2) free radicals with Mustard leaves showing the greatest efficiency, hence portraying antioxidant properties. Ceylon Spinach leaves depicted the highest reducing power compared to the other samples. Additionally, the edible leaf extracts were shown to possess anti-bacterial abilities with Mustard leaves displaying the strongest inhibition against growth of both Gram positive (ZOI 18.5mm) and negative bacteria (ZOI 25.5mm). Interestingly, the selected samples could also elevate the growth of probiotic Lactobacillus acidophilus in vitro thereby confirming their prebiotic potential. Therefore, inclusion of these edible leaves in the diet may promote good health owing to their nutritional and therapeutic benefits.


2017 ◽  
Vol 13 (1) ◽  
pp. 56-59
Author(s):  
Aura M. Blandón ◽  
Oscar M. Mosquera ◽  
Antônio E. G. Sant’ana ◽  
Aldenir F. Dos Santos ◽  
Luana L. S. Pires

The present study describes the in vitro antioxidant activity of methanol extracts of 34 plant species collected in the Colombian coffee-growing eco-region belonging to Euphorbiaceae, Piperaceae and Solanaceae families. The antioxidant properties of extracts were evaluated by determining radical scavenging power measured with a DPPH assay. The methanolic extracts of  Hyeronimia antioquiensis, Mabea montana, and Alchornea grandis species (Euphorbiaceae), presents EC50 values equal to 0.686, 12.35, and 13.01 µg/mL, respectively, showing high antioxidant potential.


Author(s):  
Soumia Bouzidi ◽  
Benkiki Naima ◽  
Allaoua Zina

ABSTRACTObjective: The aim of this study is to evaluate the in vitro antioxidant activity of Paronychia capitata various extracts, acute toxicity, the in vivoantipyretic and anti-inflammatory activities of the n-butanol extract.Methods: The antioxidant properties were tested using 2,2-diphenyl 1-picrylhydrazyl radical scavenging and β-carotene linoleic acid system, thetotal phenolic and flavonoid contents were determined. Furthermore, anti-inflammatory activity and antipyretic activity of the n-butanol extractwere assessed on male Wistar rats at the dose levels 250, 500 mg/kg body weight, using the egg albumin-induced edema, and brewer’s yeast-inducedpyrexia method, respectively.Results: The n-butanol extract of P. capitata had considerably the highest antiradical activity with inhibitory concentration 50 value of 8.667 μg/ml.Conclusion: The experimental data demonstrated that n-butanol extract of P. capitata possess significantly remarkable anti-inflammatory andantipyretic activities compared to the standard drugs.Keywords: Caryophyllaceae, Flavonoid, Inflammation, Fever, Paronychia capitata.


2020 ◽  
Vol 10 (6) ◽  
pp. 331-340
Author(s):  
Adebowale Emmanuel Aladejana ◽  
Graeme Bradley ◽  
Anthony Jide Afolayan

The phytochemical contents of the acetone, ethanol, and boiled and cold aqueous whole-plant extracts of Helichrysum petiolare were determined using standard phytochemical reaction methods. ABTS, DPPH, NO and TAC assays were used to evaluate their antioxidant properties. This study reported the highest total phenolic content (212,963 mg/g) in the boiled aqueous extract, while the ethanol had the highest flavonoid (172.393 mg/g) and proanthocyanidin contents (65.855 mg/g). Alkaloids, flavonols, and saponin were highest in the acetone extract, while the cold aqueous extract had the lowest phytochemical content. Among the extracts, the boiled aqueous extract had the highest DPPH•+ (IC50 0.02 mg/mL) and ABTS•+ (IC50 0.07) inhibition capacities, while the ethanol extract exhibited the highest NO• Inhibition (IC50 0.41 mg/mL) and TAC (IC50 0.19 mg/mL). These findings justify the use of H. petiolare in traditional medicine and further recommend the ethanol and boiled aqueous extracts of the plant as more effective extracts for medicinal treatment.


2021 ◽  
Vol 74 (3) ◽  
pp. 9707-9714
Author(s):  
Haim Behar Montes ◽  
Oscar Reategui ◽  
Danae Marcela Liviac Muñoz ◽  
Jesús Heráclides Arcos Pineda ◽  
Iván Karlos Best Cuba

Mashua (Tropaeolum tuberosum R. & P.) is an Andean crop of high nutritional value and medicinal properties, which presents a great diversity in morphology and color. The aim of the study was to evaluate the content of phenolic compounds and in vitro antioxidant activity of the most economically important mashua accessions in the Puno Region, Peru. Six accessions of mashua (three purplecolored and three yellow-colored) were evaluated. The content of total polyphenols, total flavonoids and identification of phenolic compounds was determined by the Folin-Ciocalteu assay, aluminum chloride colorimetric method and HPLC-DAD, respectively. In vitro antioxidant activity was evaluated using the FRAP and DPPH assays. In general, the purple-colored mashua had a significantly higher content of total polyphenols, total flavonoids, and in vitro antioxidant activity compared to the yellowcolored mashua; being the Tt-23 accession purple-colored (peel/pulp, purple/purple), which presented a significantly higher content of phenolic compounds and in vitro antioxidant activity compared to the other accessions evaluated (P<0.05). Furthermore, a significant correlation was observed between FRAP and DPPH activities with the total content of polyphenols and flavonoids (P<0.01), as well as between FRAP activity and the caffeic acid and rutin levels (P<0.05). These results suggest that purple-colored mashua, particularly the Tt-23 accession (peel/pulp, purple/purple), has better nutraceutical and antioxidant properties due to its higher content of phenolic compounds.


Author(s):  
Gopal Murugan Velmurugan ◽  
Subramaniam Parvathi Anand

  Objectives: In this study, we determined the in vitro antioxidant capacity of Phyllodium pulchellum of aqueous, ethanol, and chloroform leaf extracts.Methods: In this context, the in vitro antioxidant activity was demonstrated by 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azinobis(3- ethylbenzothiazolone-6-sulfonic acid) (ABTS+) radical scavenging assay, the total antioxidant activity of phosphomolybdenum assay and hydroxyl radical scavenging activity in different leaf extracts of P. pulchellum. The antioxidant activity of the extracts was compared to standard ascorbic acid.Results: All the four methods of antioxidant showed good reducing power and reducing capacity with increasing concentration again taking the ethanol leaf extract to the top position. Remarkable of antioxidant activity was observed in ethanol leaf extract on the hydrogen peroxide scavenging activity with the lowest inhibitory concentration 50 values of (155.40 μg/ml) followed by DPPH (432.90 μg/ml) and ABTS+ (524.40 μg/ml).Conclusion: These results suggest that the leaf of P. pulchellum could be a valuable source of new antioxidant properties, from the above results it seen that this plant exhibits pharmaceutical activity. 


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