Influence of high-dose gamma radiation and particle size on antioxidant properties of Maize ( Zea mays L.) flour

Nawaz, Haq; Shad, Muhammad Aslam; Rehman, Tanzila; Ramzan, Ayesha

doi:10.1590/s1984-82502016000400022

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…The storage conditions, processing techniques, and cooking methods have been also found to affect the phytochemical content and free radical-scavenging activity of maize [21,71]. Recently, studies in our laboratory have shown that high-dose gamma irradiation results in a decrease in antioxidant properties of corn flour [72].…”

Section: Factors Affecting the Phytochemical Profile And Antioxidant mentioning

confidence: 99%

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Nawaz¹,

Muzaffar²,

Aslam³

et al. 2018

Corn - Production and Human Health in Changing Climate

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Corn seeds are used as a nutritional source for humans, and the stem and leaves are utilized as fodder for cattle throughout the world. Corn silk and corn cob are usually discarded as waste. This chapter highlights the nutritional as well as medicinal importance of various parts of corn plant. All parts of corn plant are good source of a variety of bioactive phytochemical compounds which possess antioxidant potential. The principal phytochemicals present in corn seed and corn silk include polyphenols, phenolic acids, flavonoids, anthocyanins, glycosides, carotenoids, and polysaccharides of biological importance, reducing compounds and some water-soluble vitamins. The presence of these phytochemicals makes corn a medicinal plant which shows various biological activities particularly the antioxidant, antimicrobial, antidiabetic, anti-obesity, antiproliferative, hepatoprotective, cardioprotective, and renal-protective activities. On the account of its high antioxidant potential, all parts of corn plant can be used for the management of oxidative stress and the treatment of various diseases.

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Section: Factors Affecting the Phytochemical Profile And Antioxidant mentioning

confidence: 99%

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Nawaz¹,

Muzaffar²,

Aslam³

et al. 2018

Corn - Production and Human Health in Changing Climate

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“…LARC of the extracts was determined by the method described earlier. 25 The reaction mixture without sample was taken as control and the LARC was calculated as percent inhibition of lipid peroxidation in the linoleic acid system as:…”

Section: Linoleic Acid Reduction Capacitymentioning

confidence: 99%

Response Surface Optimization of Flavonoids Extraction, Beta Carotene Bleaching and Lipid-reducing Capacity of Nelumbo nucifera Seed Kernel Extracts

Nawaz¹,

Shad²,

Shah³

et al. 2021

IJPER

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Aim/Background: The safe and complete extraction of flavonoids from plant material influenced by various factors has been ever challenging for the researchers. The study was planned to optimize the extraction of flavonoids from nucifera seeds and their antioxidant activity. Materials and Methods: The flavonoids were extracted at various combination of four extraction factors including particle size of the flour in terms of sieve number (SN), microwave treatment time (MTT), concentration of methanol as extracting solvent (CM) and soaking time (ST) each at five levels using a response surface central composite design. The extracts were analyzed for total flavonoid content (TFC), β-carotene bleaching capacity (BCBC) and linoleic acid reduction capacity (LARC). Results: A statistically significant (p<0.05) effect of the extraction factors was observed on TFC, BCBC and LARC. A linear positive effect of MTT and CM and a quadratic positive effect of SN and CM was observed on TFC. The BCBC and LARC were also found to be increased linearly by increasing the SN, MTT and CM. The levels of SN, MTT, CM and ST to obtain optimal value of TFC (1.468 g/100g dry weight) were found to be 132.94 meshes/inch, 1.85 min, 99.87% and 3.06 h respectively. Conclusion: The increase in TFC by increasing the MTT and CM may be attributed to the microwaveassisted release of bound flavonoids and their amphiphilic structure. The data would be a valuable guideline for the researchers regarding the extraction of plant flavonoids and their antioxidant potential.

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Chronological effects of non-steroidal anti-inflammatory drug therapy on oxidative stress and antioxidant status in patients with rheumatoid arthritis

et al. 2020

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Influence of high-dose gamma radiation and particle size on antioxidant properties of Maize ( Zea mays L.) flour

Cited by 6 publications

References 19 publications

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Response Surface Optimization of Flavonoids Extraction, Beta Carotene Bleaching and Lipid-reducing Capacity of Nelumbo nucifera Seed Kernel Extracts

Chronological effects of non-steroidal anti-inflammatory drug therapy on oxidative stress and antioxidant status in patients with rheumatoid arthritis

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