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.

scholarly journals Chemical characterization of the pulp, peel and seeds of cocona (Solanum sessiliflorum Dunal)

2015 ◽  
Vol 18 (3) ◽  
pp. 192-198 ◽  
Author(s):  
Liliana SERNA-COCK ◽  
Diana Patricia VARGAS-MUÑOZ ◽  
Carlos Andrés RENGIFO-GUERRERO
Keyword(s):  
Dietary Fibre ◽  
Dry Matter ◽  
Functional Foods ◽  
Food Additives ◽  
Chemical Characterization ◽  
Value Added ◽  
Mineral Contents ◽  
Fruit Processing ◽  
Value Added Products

Summary The chemical characterization of the pulp, peel and seeds of cocona (Solanum sessiliflorum Dunal) was determined. In artisanal fruit processing, 26.3% of peel and 9.7% of seeds were obtained. The seeds showed a high potential for the development of value-added products because of their dry matter contents (23.46%) as follows: carbohydrate (69.37% dry basis (d.b.)), nitrogen (3.18 g/100 g of seed d.b.), K (0.023 g/100 g of seed d.b.), Fe (0.0185 g/100 g of seed d.b.) and dietary fiber (21.27 g/100 g of seed d.b.). The carbohydrate, dietary fibre and mineral contents of the pulp, peel and seeds also highlighted the agroindustrial potential of the fruit in that these constituents could be used to develop functional foods, food additives, preparations for functional diets and dietary supplements.

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

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 Synthesis and structural characterization of novel O-substituted phenolic and chalcone derivatives with antioxidant activity

2020 ◽  
pp. 174751982093278
Author(s):  
Bathélémy Ngameni ◽  
Musa Erdoğan ◽  
Victor Kuete ◽  
Erdin Dalkılıç ◽  
Bonaventure T Ngadjui ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Click Reaction ◽  
Radical Scavenging ◽  
Aromatic Aldehydes ◽  
Schmidt Method ◽  
Reaction Conditions ◽  
Aromatic Azide ◽  
Work Up ◽  
Radical Scavenging Assay

A series of novel 4- O-alkyltriazolylphenolic derivatives is first synthesized with good to excellent yields via the click reaction of 3-methoxy-4- O-propargylbenzaldehyde or 3-allyl-4- O-propargylacetophenone and aromatic azide derivatives. Next, the chalcones are prepared via the Claisen-Schmidt method from 4- O-alkylphenylketone derivatives in the presence of the corresponding (hetero)aromatic aldehydes as electrophiles. The structures of the newly synthesized compounds are confirmed from their infrared, nuclear magnetic resonance spectral data, and by elemental analysis. The main advantages of this procedure are the simplicity of the reaction conditions, easily available starting materials, and simple work-up. The antioxidant activity of several of the products is determined using the DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) radical scavenging assay. 4- O-propargylvanillin (IC50 = 14.54 µg/mL) had moderate antioxidant activity.

scholarly journals Value-Added Lager Beer Enriched with Eggplant (Solanum melongena L.) Peel Extract

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 731 ◽  
Author(s):  
Georgiana Horincar ◽  
Elena Enachi ◽  
Carmen Bolea ◽  
Gabriela Râpeanu ◽  
Iuliana Aprodu
Keyword(s):  
Antioxidant Activity ◽  
Radical Scavenging ◽  
Solanum Melongena ◽  
Value Added ◽  
Linear Increase ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
Biological Value ◽  
Beer Production ◽  
Peel Extract

Manufacturing beer with a high biological value requires identifying new methods for increasing the health-enhancing compounds level. The aim of this study was to increase the biological value of beer by adding antioxidant-rich eggplant (Solanum melongena L.) peel extract (EPE). The total phenolic content (TPC), total flavonoid content (TFC), and total monomeric anthocyanin content (TMA) were determined. Moreover, the antioxidant activity was evaluated by different radical scavenging assays. The addition of different levels of EPE resulted in a significant increase of TPC and TFC of beer samples from 0.426 to 0.631 mg GAE/mL, and from 0.065 to 0.171 mg CE/mL, respectively. The EPE-supplemented beer samples developed a reddish color because of the presence of anthocyanin pigments. The TMA content of beer varied from 0.011 to 0.083 mg D3G/mL with the level of added EPE. The HPLC analysis indicated that the anthocyanins prevailing in the eggplant peels were delphinidin-3-rutinoside, delphininidin-3-glucoside and delphinidin-3-rutinoside-5-glucoside. The radical scavenging assays indicated a linear increase of the antioxidant activity following EPE addition, without altering the physicochemical parameters of the beer. These results are promising for using the EPE as a functional ingredient for beer production.

Chemical Characterization of Sicilian Prickly Pear (Opuntia ficus indica) and Perspectives for the Storage of Its Juice

2000 ◽  
Vol 48 (11) ◽  
pp. 5424-5431 ◽  
Author(s):  
Sergio Gurrieri ◽  
Laura Miceli ◽  
C. Maria Lanza ◽  
Filippo Tomaselli ◽  
Raffaele P. Bonomo ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Prickly Pear ◽  
Opuntia Ficus Indica

scholarly journals Variation in Flavonoid Composition and Radical-Scavenging Activity inGinkgo bilobaL. due to the Growth Location and Time of Harvest

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Laura Rimkiene ◽  
Asta Kubiliene ◽  
Andrejus Zevzikovas ◽  
Daiva Kazlauskiene ◽  
Valdas Jakstas
Keyword(s):  
Antioxidant Activity ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Raw Material ◽  
Quantitative Composition ◽  
Sample Collection ◽  
Health Promoting ◽  
Flavonoid Composition ◽  
Time Of Harvest ◽  
Practical Recommendations

The aim of our research is to investigate the qualitative and quantitative composition and antioxidant activity of flavonoids in leaf samples ofGinkgo bilobaL.(G. biloba)growing in Lithuania and also to provide practical recommendations for the pharmaceutical industry to determine the optimum harvesting time and growth location ofG. bilobaleaves. The obtained results indicate that the growth location and time of sample collection have a significant influence (p≤0.05) on the content of active compounds. July and August are the best months to harvestG. bilobaleaves for industry. To ensure the rational collection ofG. bilobaraw material, the location of plantations is recommended in the western and southwestern phytoregions. The obtained results also indicate that the flavonoid content inG. bilobaleaf has a significantly positive correlation (r=0.952,p≤0.001) with antioxidant activity. The aqueous acetonic extracts from green leaves scavenge radicals to a greater degree than those from yellowGinkgoleaves. The results of this investigation provide information regarding the most suitable Lithuanian growing location to produceG. bilobawith an optimized content of health-promoting compounds.

scholarly journals Green synthesis and Characterization of Silver Nanoparticles Synthesized Using Piper longum and its Antioxidant Activity

2021 ◽  
pp. 342-352
Author(s):  
Taanya Imtiaz ◽  
R. Priyadharshini ◽  
S. Rajeshkumar ◽  
Palati Sinduja
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticles ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Piper Longum ◽  
Pathological Conditions ◽  
Red Color ◽  
Anti Cancer ◽  
Anti Oxidant

Background: Piper longum, a traditional plant used for regenerative medicine commonly known as the long pepper, is used to treat many pathological conditions. Piper longum is used as a source for obtaining the production of various nanoparticles and testing their efficacy. Piper longum has many beneficial activities, such as antifungal, anti-amoebic, anti-asthmatic, anti-cancer, anti-oxidant, anti-inflammatory, antidepressants activities. Silver nanoparticles are widely and commonly used for its antimicrobial activity against various microorganisms. Our study aimed to synthesize Piper longum based silver nanoparticles and to investigate its anti-oxidant property. Materials and Methods: Piper longum plant extract was prepared and silver nanoparticles extract was synthesized. DPPH assay was then performed to assess the free radical scavenging activity of the Piper longum silver nanoparticle extract. The further analysis was that the formation of brownish-red color observed was evident, resulting in thesynthesization of silver nanoparticles. Results: Brown discolouration represents formation of silver nanoparticles and the antioxidant activity was noted to be from 60% to 70% from 10 to 50μL. But when compared to standard vitamin C values the Piper longum silver nanoparticles showed less antioxidant activity. Conclusion: The Piper longum mediated silver nanoparticles showed remarkable and considerable antioxidant activity but when compared with the standard sample values the antioxidant activity was low.

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