scholarly journals Phytochemical Content and Antioxidant activity in aqueous and ethanolic extracts of Eryngium foetidum L.

2020 ◽  
Vol 991 ◽  
pp. 012026
Author(s):  
N Q N Thi ◽  
T N T An ◽  
O B Nguyen ◽  
L T Dung ◽  
L V Minh ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phytochemical Content ◽  
Ethanolic Extracts ◽  
Eryngium Foetidum

scholarly journals Comparative Study on Seed Characteristics, Antioxidant Activity, and Total Phenolic and Flavonoid Contents in Accessions of Sorghum bicolor (L.) Moench

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3964
Author(s):  
Bimal-Kumar Ghimire ◽  
Ji-Won Seo ◽  
Chang-Yeon Yu ◽  
Seung-Hyun Kim ◽  
Ill-Min Chung
Keyword(s):  
Antioxidant Activity ◽  
Agronomic Traits ◽  
Germination Rate ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Extensive Study ◽  
Total Phenolic ◽  
Phytochemical Content ◽  
Seed Characteristics ◽  
Seed Extracts

Sorghum is a major cereal food worldwide, and is considered a potential source of minerals and bioactive compounds. Its wide adaptive range may cause variations in its agronomic traits, antioxidant properties, and phytochemical content. This extensive study investigated variations in seed characteristics, antioxidant properties, and total phenolic (TPC) and flavonoid contents (TFC) of sorghum collected from different ecological regions of 15 countries. The antioxidant potential of the seed extracts of various sorghum accessions was determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azinobis 3-ethylbenzothiazoline-6-sulfonate (ABTS) radical scavenging assays. Significant variations in TPC were observed among the sorghum accessions. All 78 sorghum accessions used in this study exhibited significant variations in TFC, with the lowest and highest amount observed in accessions C465 and J542, respectively. DPPH scavenging potential of the seed extracts for all the accessions ranged from 11.91 ± 4.83 to 1343.90 ± 81.02 µg mL−1. The ABTS assay results were similar to those of DPPH but showed some differences in the accessions. Pearson’s correlation analysis revealed a wide variation range in the correlation between antioxidant activity and TPC, as well as TFC, among the sorghum accessions. A wide diversity range was also recorded for the seed characteristics (1000-seed weight and seed germination rate). A dendrogram generated from UPGMA clustering, based on seed traits, antioxidant activity, TPC, and TFC was highly dispersed for these accessions. Variations among the accessions may provide useful information regarding the phytoconstituents, antioxidant properties, and phytochemical contents of sorghum and aid in designing breeding programs to obtain sorghum with improved agronomic traits and bioactive properties.

Phytochemical content and antioxidant activity of six diverse varieties of whole wheat

2010 ◽  
Vol 119 (1) ◽  
pp. 249-257 ◽  
Author(s):  
Neal Okarter ◽  
Chang-Shu Liu ◽  
Mark E. Sorrells ◽  
Rui Hai Liu
Keyword(s):  
Antioxidant Activity ◽  
Phytochemical Content ◽  
Whole Wheat

scholarly journals Utero-relaxing and anti-free-radical effects of hydro-ethanolic extracts of Desmodium ramosissimum in the wistar female rats

2021 ◽  
Vol 2 ◽  
pp. 6
Author(s):  
Hèzouwè Madjalani ◽  
Kossi Metowogo ◽  
Tcha Pakoussi ◽  
Aklesso Nabede ◽  
Essodjolon Kanabiya ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Medicinal Plants ◽  
Rural Areas ◽  
Public Health Problem ◽  
Stem Bark ◽  
Sub Saharan Africa ◽  
Female Rats ◽  
Phenolic Constituents ◽  
Ethanolic Extracts

Objectives: In sub-Saharan Africa, the therapeutic use of medicinal plants is of arousing interest. Reproductive disorders are a public health problem like everywhere else in the world. The population, especially in rural areas, uses medicinal plants for their beneficial effects. In Africa, the population uses these medicinal plants for their healthcare, including solving problems related to childbirth where there is an increase in the number of women known as “traditional birth attendants.” The effects of its medicinal plants relate to the various reproductive processes in women, from pregnancy to induction of labor, elimination of placental retention, and management of postpartum hemorrhage. To contribute to the enhancement of medicinal plants traditionally used in reproductive healthcare in Togo and to make information on their pharmacological effects available to the population, this work focused on the evaluation utero-relaxing and anti-free radical effects of extracts of Desmodium ramosissimum in the female rats of the Wistar strain. Material and Methods: The effects of hydro-ethanolic extracts of leaves, stem barks, and roots of D.ramosissimum were then tested on shreds Myometer of the female rats mounted in an organ vat and the antioxidant activity of these extracts tested was then determined. Results: The results show that hydro-ethanolic extracts from leaves, stem bark, and roots of D.ramosissimum cause a reduction in the frequency of spontaneous contractions of the uterine muscle. This reduction shows that these extracts have relaxing effects on the contraction of this muscle. The leaves extract showed better antioxidant activity compared to other extracts. Conclusion: This antioxidant activity is probably due to the phenolic constituents and its metabolites would be partly responsible for the pharmacological activities of D.ramosissimum. D.ramosissimum could thus be used to reduce uterine contractions in order to avoid Threats of Premature Labor.

scholarly journals Effect of Different Pre-Treatments on Antinutrients and Antioxidants of Rice Bean (Vigna umbellata)

2020 ◽  
Vol 24 (1) ◽  
pp. 25-38
Author(s):  
Damanpreet Kaur ◽  
Kajal Dhawan ◽  
Prasad Rasane ◽  
Jyoti Singh ◽  
Sawinder Kaur ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Low Cost ◽  
Nutrient Content ◽  
Nutritional Factors ◽  
Rice Bean ◽  
Phytochemical Content ◽  
Vigna Umbellata ◽  
Commercial Applications ◽  
Maximum Content ◽  
Orphan Crop

AbstractRice bean (Vigna umbellata) is a legume that belongs to Vigna genus. Native to Indo-Chinese region, it is considered to be an ‘under-utilized’ or ‘orphan’ crop. Rice bean is known to possess high nutritional potential and antioxidant activity. But the use of rice bean supplementation in routine diet is limited despite its high nutritional profile due to the presence of non-nutritional factors. Thus, various pre-treatments like soaking, germination, oven roasting, sand roasting, boiling and pressure cooking at different time and temperature were carried out to reduce the anti-nutritional content of rice bean and to study its effect on antioxidant activity and phytochemical content. All the pre-treatments were able to significantly reduce the anti-nutrient content in rice bean, but germination showed the maximum reduction. Also germinated rice bean showed the maximum antioxidant potential and maximum content of total phenols, total flavonoids, vitamin C and carotenoids. Rice bean has been underutilized so far, owing to its antinutrient content and low popularity. This experiment attempted to use low cost processing to reduce the content of antinutrients and track the antioxidant content in rice bean. The concluded processing could be adopted for commercial applications for dietary supplementation.

scholarly journals Evaluation of the Antioxidant Activity of Ethanolic Extracts of Some Varieties of Onions

2014 ◽  
Vol 03 (02) ◽  
pp. 26-34
Author(s):  
María del Carmen Gutierrez ◽  
Patricia Della Rocca ◽  
Elizabeth De Seta ◽  
Fernando Reina
Keyword(s):  
Antioxidant Activity ◽  
Ethanolic Extracts

scholarly journals Prunus persica var. platycarpa (Tabacchiera Peach): Bioactive Compounds and Antioxidant Activity of Pulp, Peel and Seed Ethanolic Extracts

2015 ◽  
Vol 70 (3) ◽  
pp. 331-337 ◽  
Author(s):  
Monica R. Loizzo ◽  
Deborah Pacetti ◽  
Paolo Lucci ◽  
Oscar Núñez ◽  
Francesco Menichini ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Prunus Persica ◽  
Ethanolic Extracts

Mycochemical composition and antioxidant potential of Macrolepiota africana (Heim) Heinem. (Agaricaceae), an edible mushroom from Gabon

2021 ◽  
Vol 2 (1) ◽  
pp. 028-033
Author(s):  
Hugues Calixte Eyi Ndong ◽  
André Ledoux Njouonkou
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Activity Index ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Edible Mushroom ◽  
Mushroom Species ◽  
Chemical Screening ◽  
Ethanolic Extracts ◽  
Pharmacological Potential

Macrolepiota africana is a fungus used as food in Gabon for its culinary properties. However, its nutritional value, mycochemical contents, antioxidant properties and health potential still unknown. The present study investigated the phytochemicals and antioxidant properties of this mushroom species. This chemical screening was followed by a study of the antioxidant activity and a prediction of additional pharmacological activities of M. africana. Using standard methodology, the mycochemical analyses were carried out on aqueous, hydro-ethanolic and ethanolic fungi extracts. The antioxidant activity of the mushroom extracts was determined using DPPH radical scavenging assay. Apart from Digitoxigenine, flavonol and gitoxigenine that were not found in any of the extracts, all other tested mycochemical were found in atleast one of the extracts. Alkaloids, flavonoids, polyphenols, oses and holosides, proanthocyanidins and coumarins were found in all extracts at different intensity. Saponosids, sterols and triterpenes, tannins gallics, reducing sugar, anthracenosides and digitoxine were found in two extracts while tannins catechics, flavone and gitoxine were detected only in one extract. The dosage of phenolic compounds confirmed the richness of this fungus in total polyphenols, its moderate richness in proanthocyanidins, the lack of flavonoids in the aqueous extract and the moderate richness of the hydro-ethanolic and ethanolic extracts in flavonoids. Regarding the antioxidant activities, the results obtained for the DPPH trapping test showed that the different extracts had low to moderate antioxidant activity with antioxidant activity index (IAA) ranged 0.29 to 0.97 respectively in aqueous and ethanolic extracts. The presence of these mycochemical compounds along with the identified antioxidant activities shows that this M. africana have some pharmacological potential.

scholarly journals Chemical Fingerprint Analysis of Phenolics of Albizia chinensis Based on Ultra-Performance LC-Electrospray Ionization-Quadrupole Time-of-Flight Mass Spectrometry and Antioxidant Activity

2011 ◽  
Vol 6 (11) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Abha Chaudhary ◽  
Pushpinder Kaur ◽  
Neeraj Kumar ◽  
Bikram Singh ◽  
Shiv Awasthi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Antioxidant Activity ◽  
Electrospray Ionization ◽  
Time Of Flight ◽  
Ethanolic Extract ◽  
Ultra Performance Liquid Chromatography ◽  
Reversed Phase ◽  
Flight Mass Spectrometry ◽  
Ethanolic Extracts ◽  
C Nmr

Albizia species have been shown to have anti-inflammatory and antiallergic properties. However, efficient analytical methods for identification of their active constituents are still lacking. Ultra-performance liquid chromatography coupled with electrospray ionization-quadrupole time-of-flight mass spectrometry (UPLC-ESI-QTOF-MS) was used to study the phenolic composition of the ethanolic extracts of different parts (flowers, leaves, pods and bark) of A. chinensis. In addition, the antioxidant activity of the ethanolic extracts was evaluated by the 1,1-diphenyl-2-picryl hydrazyl (DPPH) free-radical and 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid (ABTS) radical cation scavenging methods. Four compounds were isolated from the ethanolic extract of the flowers and characterized by 1H and 13C NMR spectroscopy as quercetin-3- O-rhamnoside, quercetin, quercetin-3- O-arabinofuranoside, and myricetin-3- O-rhamnoside. Separation and quantification of the phenolics was accomplished using a reversed-phase BEH C18 column with the mobile phase of methanol–water (0.05% formic acid), and detection wavelengths of 360 and 254 nm.

Sign in / Sign up

Export Citation Format

Share Document