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Antioxidants in different parts of oleaster as a function of genotype.

Faramarz S, Dehghan G, Jahanban-Esfahlan A - Bioimpacts (2015)

Bottom Line: The phenol and flavonoid contents were determined using spectrophotometric methods.Antioxidant and antiradical activities were determined using reducing power, ferric-reducing antioxidant potential (FRAP) and ability to scavenge DPPH radical assays.Significant differences ( P < 0.05) were found in phenol and flavonoid contents and antioxidant activity among components of fruit and within various genotypes.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Plant Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran.

ABSTRACT

Introduction: Fruits of oleaster (Elaeagnus angustifolia L.) were used in traditional medicine to treat various diseases. The aim of this study was to evaluate and compare the phenol and flavonoid contents and antioxidant activity of methanol extracts from the fruit peel, flesh and seed of seven genotypes of oleaster.

Methods: The phenol and flavonoid contents were determined using spectrophotometric methods. Antioxidant and antiradical activities were determined using reducing power, ferric-reducing antioxidant potential (FRAP) and ability to scavenge DPPH radical assays.

Results: Significant differences ( P < 0.05) were found in phenol and flavonoid contents and antioxidant activity among components of fruit and within various genotypes.

Conclusion: RESULTS indicated that oleaster has good fruit quality varying among different genotypes. Seeds of fruits have excellent antioxidant activity and phenolic contents in comparison to flesh and peel.

No MeSH data available.


Related in: MedlinePlus

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Mentions: In the present study, we used some methods such as reducing power, FRAP and DPPH assays to determine the antioxidant potential of different parts of E. angustifolia fruits. For the determination of the reductive ability, Fe3+ to Fe2+ transformation in the presence of methanol extract was investigated. All samples revealed a high reducing power that varied among the genotypes (Fig. 3). The absorbance values of the seed extract in different genotypes were found to be more than that of peel and flesh extract. The average of reducing power value in seven genotypes of oleaster seed extract was 0.79 at 700 nm. Maximum reducing power was 1.1 ± 0.04 for IEa-3 and minimum reducing power was 0.47 ± 0.09 for IEa-2. The average of reducing power value in seven genotypes of oleaster flesh extract was 0.548 at 700 nm. Maximum reducing power was 0.61 ± 0.02 for IEa-2 and minimum reducing power was 0.45 ± 0.01 for IEa-6. The average of reducing power value in seven studied genotypes of oleaster peel extract was 0.246 at 700 nm. Maximum reducing power was 0.44 ± 0.08 for IEa-5 and minimum reducing power was 0.13 ± 0.01 for IEa-1.


Antioxidants in different parts of oleaster as a function of genotype.

Faramarz S, Dehghan G, Jahanban-Esfahlan A - Bioimpacts (2015)

© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4492188&req=5

Mentions: In the present study, we used some methods such as reducing power, FRAP and DPPH assays to determine the antioxidant potential of different parts of E. angustifolia fruits. For the determination of the reductive ability, Fe3+ to Fe2+ transformation in the presence of methanol extract was investigated. All samples revealed a high reducing power that varied among the genotypes (Fig. 3). The absorbance values of the seed extract in different genotypes were found to be more than that of peel and flesh extract. The average of reducing power value in seven genotypes of oleaster seed extract was 0.79 at 700 nm. Maximum reducing power was 1.1 ± 0.04 for IEa-3 and minimum reducing power was 0.47 ± 0.09 for IEa-2. The average of reducing power value in seven genotypes of oleaster flesh extract was 0.548 at 700 nm. Maximum reducing power was 0.61 ± 0.02 for IEa-2 and minimum reducing power was 0.45 ± 0.01 for IEa-6. The average of reducing power value in seven studied genotypes of oleaster peel extract was 0.246 at 700 nm. Maximum reducing power was 0.44 ± 0.08 for IEa-5 and minimum reducing power was 0.13 ± 0.01 for IEa-1.

Bottom Line: The phenol and flavonoid contents were determined using spectrophotometric methods.Antioxidant and antiradical activities were determined using reducing power, ferric-reducing antioxidant potential (FRAP) and ability to scavenge DPPH radical assays.Significant differences ( P < 0.05) were found in phenol and flavonoid contents and antioxidant activity among components of fruit and within various genotypes.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Plant Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran.

ABSTRACT

Introduction: Fruits of oleaster (Elaeagnus angustifolia L.) were used in traditional medicine to treat various diseases. The aim of this study was to evaluate and compare the phenol and flavonoid contents and antioxidant activity of methanol extracts from the fruit peel, flesh and seed of seven genotypes of oleaster.

Methods: The phenol and flavonoid contents were determined using spectrophotometric methods. Antioxidant and antiradical activities were determined using reducing power, ferric-reducing antioxidant potential (FRAP) and ability to scavenge DPPH radical assays.

Results: Significant differences ( P < 0.05) were found in phenol and flavonoid contents and antioxidant activity among components of fruit and within various genotypes.

Conclusion: RESULTS indicated that oleaster has good fruit quality varying among different genotypes. Seeds of fruits have excellent antioxidant activity and phenolic contents in comparison to flesh and peel.

No MeSH data available.


Related in: MedlinePlus