scholarly journals Chemical Characterization and Antioxidant Activity of Amazonian (Ecuador) Caryodendron orinocense Karst. and Bactris gasipaes Kunth Seed Oils

2014 ◽  
Vol 63 (12) ◽  
pp. 1243-1250 ◽  
Author(s):  
Matteo Radice ◽  
Derwin Viafara ◽  
David Neill ◽  
Mercedes Asanza ◽  
Gianni Sacchetti ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Characterization ◽  
Seed Oils ◽  
Bactris Gasipaes ◽  
Amazonian Ecuador

scholarly journals CHEMICAL CHARACTERIZATION AND ANTIOXIDANT CAPACITY OF GUAPEVA

2017 ◽  
Vol 39 (spe) ◽  
Author(s):  
ANA PAULA SILVA SIQUEIRA ◽  
JANIELE DE MEDEIROS OLIVEIRA ◽  
DIVINO RIBEIRO MACHADO JUNIOR ◽  
MARCOS FELIPE DE CASTRO LOURENÇO
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Chemical Characterization ◽  
Healthy Diet ◽  
Brazilian Cerrado ◽  
High Moisture

ABSTRACT Fruits of the Brazilian cerrado usually have typical flavor and high levels of nutrients; however, many of these fruits are little known and marketed. The aim of this study was to chemically and bioactively characterize guapeva fruit, according to standard methodologies. Guapeva has high moisture (65 %) and minerals (1%) content and significant content of phenolic compounds (220 GAE/100g) and consequent antioxidant activity (329.29 µmol/ Trolox eq). This fruit has desirable features to compose a healthy diet and should be further explored in research and economically.

Extraction and chemical characterization of Angelica sinensis polysaccharides and its antioxidant activity

2013 ◽  
Vol 94 (2) ◽  
pp. 731-736 ◽  
Author(s):  
Songtao Ai ◽  
Xindong Fan ◽  
Linfeng Fan ◽  
Qi Sun ◽  
Yu Liu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Characterization ◽  
Angelica Sinensis

scholarly journals Antioxidant activity, color chromaticity coordinates, and chemical characterization of monofloral honeys from Morocco

2017 ◽  
Vol 20 (9) ◽  
pp. 2016-2027 ◽  
Author(s):  
Giacomo Luigi Petretto ◽  
Carlo Ignazio Giovanni Tuberoso ◽  
Maurizio Antonio Fenu ◽  
Jonathan P. Rourke ◽  
Omar Belhaj ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Characterization ◽  
Chromaticity Coordinates

scholarly journals Chemical Characterization and Biological Activities of Essential Oil Obtained from Mint Timija Cultivated under Mineral and Biological Fertilizers

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Ayoub Kasrati ◽  
Chaima Alaoui Jamali ◽  
Robert Spooner-Hart ◽  
Laurent Legendre ◽  
David Leach ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Arbuscular Mycorrhizae ◽  
Biological Activities ◽  
Chemical Characterization ◽  
Mineral Fertilizer ◽  
Agronomic Practices ◽  
Significant Difference ◽  
Vesicular Arbuscular ◽  
Promising Solution ◽  
Biological Fertilizer

Cultivation of mint timija (Mentha suaveolens subsp. timija (Briq.) Harley) constitutes a promising solution to the conservation and sustainable utilization of this Moroccan endemic and threatened species. Optimized agronomic practices require mineral and/or biological fertilizer applications. The aim of this study was to determine the effects of application of a complete (N, P, and K) mineral fertilizer and vesicular arbuscular mycorrhizae (VAM) inoculation on the composition, antioxidant, and insecticidal properties of mint timija essential oils (EOs). The GC-MS analyses identified 27 components representing more than 99.9% of the total oils. Menthone (40.7–49.3%), pulegone (31.3–36.5%), and isomenthone (2.5–4.4%) were found to be the main constituents. Cultivation of mint timija with mineral fertilizer and VAM inoculation induced an increase in menthone content and a parallel decrease of pulegone. Both treatments enhanced the antioxidant activity of the investigated EOs in all assays (IC50 ranged from 2.34 ± 0.03 mg/mL to 6.82 ± 0.25 mg/mL), while no significant difference in the toxicities of these oils against Tribolium confusum du Val. has been observed. Overall, we conclude that cultivation using complete mineral fertilizer and VAM inoculation could be useful in modulating the chemical composition and enhancing the antioxidant activity of the EO of this endemic Moroccan species.

Chemical Characterization of Euphorbia heterophylla L. Essential Oils and Their Antioxidant Activity and Allelopathic Potential on Cenchrus echinatus L.

2019 ◽  
Vol 16 (5) ◽  
pp. e1900051 ◽  
Author(s):  
Abdelsamed I. Elshamy ◽  
Ahmed M. Abd‐ElGawad ◽  
Abd El‐Nasser G. El Gendy ◽  
Abdulaziz M. Assaeed
Keyword(s):  
Antioxidant Activity ◽  
Essential Oils ◽  
Chemical Characterization ◽  
Allelopathic Potential

scholarly journals Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 542
Author(s):  
Thi Thuy Nguyen ◽  
Lan Phuong Doan ◽  
Thu Huong Trinh Thi ◽  
Hong Ha Tran ◽  
Quoc Long Pham ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Seed Oil ◽  
Radical Scavenging ◽  
Sterol Composition ◽  
Total Phenolic ◽  
Seed Oils ◽  
Free Radical Scavenging Assay ◽  
Phytosterol Composition

This research aimed to investigate the chemical composition of seed oils extracted from three Vietnamese Dalbergia species (D. tonkinensis, D. mammosa, and D. entadoides). The fatty acid profiles and contents of tocopherols and sterols of the seed oils, and total phenolic compounds extracted from the fresh seeds were characterized using different methods. Among the examined samples, D. tonkinensis seed oils showed high contents of linoleic acid (64.7%), whereas in D. mammosa, oleic acid (51.2%) was predominant. In addition, α- and γ-tocopherol and β-sitosterol were major ingredients in the seed oils, whereas ferulic acid and rosmarinic acid are usually predominant in the seeds of these species. Regarding sterol composition, the D. entadoides seed oil figured for remarkably high content of Δ5,23-stigmastadienol (1735 mg/kg) and Δ7-stigmastenol (1298 mg/kg). In addition, extracts with methanol/water (80:20, v/v) of seeds displayed significant in vitro antioxidant activity which was determined by DPPH free radical scavenging assay.

Biochemical characterization and antioxidant activity of grape (Vitis vinifera L.) seed oils from nine Tunisian varieties

2018 ◽  
Vol 42 (5) ◽  
pp. e12595 ◽  
Author(s):  
Hela Harbeoui ◽  
Iness Bettaieb Rebey ◽  
Ines Ouerghemmi ◽  
Wissem Aidi Wannes ◽  
Hassen Zemni ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Vitis Vinifera ◽  
Biochemical Characterization ◽  
Vitis Vinifera L ◽  
Seed Oils

Chemical characterization and in vivo antioxidant activity of parsley (Petroselinum crispum) aqueous extract

2020 ◽  
Vol 11 (6) ◽  
pp. 5346-5356
Author(s):  
Neide Mara de Menezes Epifanio ◽  
Lynn Rykiel Iglesias Cavalcanti ◽  
Karine Falcão dos Santos ◽  
Priscila Soares Coutinho Duarte ◽  
Piotr Kachlicki ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Chemical Characterization ◽  
Flavonoid Glycosides ◽  
Petroselinum Crispum

Twenty-nine flavonoid glycosides were identified in the aqueous extract (PC) of Petroselinum crispum var. crispum leaves and apiin, the major compound, was isolated thereof.

scholarly journals Essential oil of Bassia muricata: Chemical characterization, antioxidant activity, and allelopathic effect on the weed Chenopodium murale

2020 ◽  
Vol 27 (7) ◽  
pp. 1900-1906 ◽  
Author(s):  
Ahmed Abd-ElGawad ◽  
Abd El-Nasser El Gendy ◽  
Yasser El-Amier ◽  
Ahmed Gaara ◽  
Elsayed Omer ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Chemical Characterization ◽  
Allelopathic Effect ◽  
Chenopodium Murale

scholarly journals Characterization of Micronutrients, Bioaccessibility and Antioxidant Activity of Prickly Pear Cladodes as Functional Ingredient

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2176
Author(s):  
Meriam Missaoui ◽  
Isabella D’Antuono ◽  
Massimiliano D’Imperio ◽  
Vito Linsalata ◽  
Sadok Boukhchina ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Dietary Fibre ◽  
Radical Scavenging ◽  
Chemical Characterization ◽  
Value Added ◽  
Prickly Pear ◽  
Functional Ingredient ◽  
Health Promoting ◽  
Ferulic Acids

The Opuntia ficus indica (L.) (OFI) is used as a nutritional and pharmaceutical agent in various dietary and value added products. This study underlines the possible use of native prickly pear cladode powder as a functional ingredient for health-promoting food production. To summarise, chemical characterization of polyphenols, minerals and soluble dietary fibre was performed; furthermore, the antioxidant activity and bioaccessibility of polyphenols and minerals were assessed. Eleven compounds between phenolic acids and flavonoids were identified, with piscidic acid and isorhamnetin derivatives being the most abundant. Opuntia’s dietary fibre was mainly constituted of mucilage and pectin, and was composed of arabinose, galactose, glucose, mannose, rhamnose, and xylose sugars. The polyphenols’ bioaccessibility was very high: piscidic acid at 200%, eucomic and ferulic acids >110% and flavonoids from 89% to 100%. The prickly pear cladode powder is also a source of minerals, as cations (calcium, sodium, potassium and magnesium) and anions (sulphate and chloride), with high magnesium bioaccessibilty (93%). OFI powder showed good capacity of radical scavenging measured by DPPH and ABTS methods, with 740 and 775 μmol Trolox/100 g OFI, respectively. Finally, the presented results allow the consideration of this natural product as a source of several essential nutrients, with a possible use in the food industry as a functional ingredient.

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