Seabuckthorn (Hippophae salicifolia) Leaves, a Good Source of Natural Antioxidant Compounds

2022 ◽  
Author(s):  
Vijay Laxmi Trivedi ◽  
Dharam Chand Attri ◽  
Amit Bahukhandi ◽  
Mohan Chandra Nautiyal ◽  
Jyoti Sati
Keyword(s):  
Natural Antioxidant ◽  
Antioxidant Compounds ◽  
Good Source ◽  
Hippophae Salicifolia

scholarly journals Trace elements and antioxidants in Astragalus onobrychis L. var. chlorocarpus (Griseb.) S. Kozuharov et D.K. Pavlova

2011 ◽  
Vol 65 (3) ◽  
pp. 323-327 ◽  
Author(s):  
Dragoljub Miladinovic ◽  
Budimir Ilic ◽  
Violeta Milosavljevic
Keyword(s):  
Trace Elements ◽  
Reduced Glutathione ◽  
Seasonal Pattern ◽  
Antioxidant Compounds ◽  
Total Carotenoid ◽  
Good Source ◽  
Vegetative Period ◽  
Stages Of Growth ◽  
Iron Copper ◽  
Initial Stage

Leaves of growing-wild species Astragalus onobrychis L. var. chlorocarpus (Griseb.) S. Kozuharov et D. K. Pavlova were collected during the different stages of growth and analyzed for iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), soluble proteins, reduced glutathione (GSH), total flavonoid and total carotenoid contents. Iron, copper and manganese have shown similar seasonal pattern, increasing of metal content in leaves during the vegetative period. The highest values of the examined elements were in seed forming stage, except zinc. The highest value of this element was recorded in initial stage of vegetation. Antioxidant compounds have the highest values in blooming stage of vegetation. The results from the present study suggest that researched plant species represent a good source of trace elements and antioxidant compounds.

Optimizing extraction of berberine and antioxidant compounds from barberry by maceration and pulsed electric field-assisted methods

2020 ◽  
pp. 1-16 ◽  
Author(s):  
Mozhdeh Sarraf ◽  
Adel Beig-babaei ◽  
Sara Naji-Tabasi
Keyword(s):  
Antioxidant Activity ◽  
Optimum Condition ◽  
Electric Field ◽  
Ethanol Concentration ◽  
Pulsed Electric Field ◽  
Antioxidant Compounds ◽  
Good Source ◽  
Valuable Compounds ◽  
Central Composite ◽  
Different Parts

BACKGROUND: Barberry is a valuable plant, which is useful in the treatment of different diseases. There are valuable compounds in different parts of barberry that are pruned per year and discarded as waste. OBJECTIVE: In this study, the amount of berberine, phenolic compounds and antioxidant activity of barberry fruits, leaves, and stems of different barberry species (B.integerrima and B.thunbergii) were investigated. METHODS: Central composite design of response surface methodology (RSM) were used in this study to investigate the extraction variables (time: 2–24 h, temperature: 24–70°C and ethanol concentration: 50–90%) in the extraction of berberine from the stem of B.integrrima. The responses used as criteria were the amount of berberine, scavenging radical DPPH, and polyphenol. Also, pulsed electric field-assisted (PEF) was applied as a pretreatment (Pulse strengths of 250, 1000 and 1250 Vcm–1; Pulse numbers (n) of 50 and 100; frequency (f) of 1 Hz) and then the extraction was conducted in optimum condition. PEF increased significantly the amount of berberine. RESULTS: The stem of B.integrrima had the most amounts of antioxidant activity and berberine content, and it was selected for more investigation. The optimum condition in the maceration method was: 90% of ethanol, 70°C, and 3.36 h (141.6 min). According to the result of PEF method, the best condition for extraction of berberine from barberry stems was 1000 Vcm–1 and n = 100. CONCLUSIONS: The results demonstrated that the extract of B.integrrima stem is a good source of berberine, antioxidant, and has the potential to be applied in various industries.

Delivery systems for natural antioxidant compounds: Archaeosomes and archaeosomal hydrogels characterization and release study

2011 ◽  
Vol 421 (2) ◽  
pp. 321-331 ◽  
Author(s):  
Ana González-Paredes ◽  
Beatriz Clarés-Naveros ◽  
Mª Adolfina Ruiz-Martínez ◽  
Juan José Durbán-Fornieles ◽  
Alberto Ramos-Cormenzana ◽  
...  
Keyword(s):  
Delivery Systems ◽  
Natural Antioxidant ◽  
Antioxidant Compounds ◽  
Release Study

Natural antioxidant compounds in risk factors for CVD

2007 ◽  
Vol 56 (2) ◽  
pp. 99-109 ◽  
Author(s):  
A KALIORA ◽  
G DEDOUSSIS
Keyword(s):  
Risk Factors ◽  
Natural Antioxidant ◽  
Antioxidant Compounds

Novel mechanisms of natural antioxidant compounds in biological systems: involvement of glutathione and glutathione-related enzymes

2005 ◽  
Vol 16 (10) ◽  
pp. 577-586 ◽  
Author(s):  
Roberta Masella ◽  
Roberta Di Benedetto ◽  
Rosaria Varì ◽  
Carmela Filesi ◽  
Claudio Giovannini
Keyword(s):  
Biological Systems ◽  
Natural Antioxidant ◽  
Antioxidant Compounds

scholarly journals Antioxidative study of polysaccharides extracted from red (Kappaphycus alvarezii), green (Kappaphycus striatus) and brown (Padina gymnospora) marine macroalgae/seaweed

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Prakash Bhuyar ◽  
Sathyavathi Sundararaju ◽  
Mohd Hasbi Ab. Rahim ◽  
Yuwalee Unpaprom ◽  
Gaanty Pragas Maniam ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Kappaphycus Alvarezii ◽  
Chemical Compounds ◽  
Hot Water ◽  
Marine Macroalgae ◽  
Natural Antioxidant ◽  
Antioxidant Compounds ◽  
Active Components ◽  
Padina Gymnospora ◽  
Polysaccharide Composition

AbstractSterile and fresh tissues of three marine macroalgae red, green and brown (Kappaphycus alvarezii, Kappaphycus striatus and Padina gymnospora) collected from Malaysia east costal seas were compared for the antioxidants and polysaccharide composition of sugars as well as the active components. Results obtained showed that polysaccharides isolated from Kappaphycus alvarezii, Kappaphycus striatus and Padina gymnospora) can be used as a source of natural antioxidant compounds as they possess antioxidant potential in which the Padina gymnospora showed 15.56 ± 0.12 mg/mL to be the best antioxidants among all the polysaccharides studied. The hot water extraction method is effective in isolating polysaccharides from studied seaweeds. The GC–MS analysis revealed that there is presence of chemical compounds such as furfural was 25.53% in Kappaphycus alvarezii and 21.04% in Kappaphycus striatus also Padina gymnospora incorporates n- Hexadecanoic acid about 26.31% in seaweed polysaccharides that contribute to their antioxidant activities. Further studies can be done on determining the seaweed species that are available abundantly with the best source of natural antioxidant compounds.

scholarly journals Antioxidant and Antisenescence Effects of Bergamot Juice

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Eleonora Da Pozzo ◽  
Marinella De Leo ◽  
Immacolata Faraone ◽  
Luigi Milella ◽  
Chiara Cavallini ◽  
...  
Keyword(s):  
High Performance ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Natural Antioxidant ◽  
Antioxidant Compounds ◽  
Cellular Models ◽  
Health Promoting ◽  
Phenolic And Flavonoid

Aging is one of the main risk factor for the onset of cardiovascular diseases; one of the possible explanations could be linked to the age-associated overproduction of free radicals. This increase of oxidative stress can be overcome with a high intake of food antioxidants. In this context, a number of studies have been addressed to assess the antiaging potential of natural antioxidant compounds. Recently, it has been shown that the juice of bergamot (Citrus bergamia Risso et Poiteau), a fruit mostly produced in the Ionian coastal areas of Southern Italy (Calabria), is a valuable source of health-promoting constituents with, among other, antioxidant properties. In order to investigate the potential antiaging effects of this Mediterranean natural antioxidant source, bergamot juices of three different cultivars (“fantastico,” “femminello,” and “castagnaro”) were herein characterized by the mean of high-performance liquid chromatography-photodiode array-electrospray ionization-tandem mass spectrometry. Then, juices were investigated for the evaluation of total polyphenolic and flavonoid contents, cell-free model antioxidant activities, and in vitro antiaging properties on two different cellular models of induced myocardial senescence. The best performing juice was also assessed in vivo. The phytochemical profiles confirmed that juices were rich in flavonoids, both flavone and flavanone glycosides. In addition, two limonoid glycosides were also identified in all cultivars. Each cultivar showed different phenolic and flavonoid contents. In tube results showed the juice robust antioxidant activities that correlate with their phenolic and flavonoid contents. Moreover, for the first time, the ability of juice to counteract the chemical-induced senescence was here demonstrated in both cellular models. Lastly, the in vivo data obtained from mouse hearts evidenced an increase in transcription of genes involved in antiaging and antioxidant responses. The overall results suggest that bergamot juice exerts antioxidant and antisenescence effects, making it useful for nutraceutical purposes.

Oxidative Stress: Role of Natural Antioxidant Compounds

2016 ◽  
pp. 65-76
Author(s):  
Vivek K. Bajpai ◽  
Irfan Ahmad Rather ◽  
Shruti Shukla
Keyword(s):  
Oxidative Stress ◽  
Natural Antioxidant ◽  
Antioxidant Compounds
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