Physicochemical study of the antioxidant activity of the corn silk extracts

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Physicochemical study of the antioxidant activity of the corn silk extracts

Popis výsledku v původním jazyce

Antioxidants from natural sources act as free radical scavengers. These compounds help balance oxidation processes and prevent oxidative stress diseases in humans1.Corn silk (Stigma maydis) is a dried thrum and stigma of the female flower Zea mays L.Corn silk extract contains many functional biological substances such as flavonoids, polysaccharides, and steroids2. Due to corn silk availability, price and the fact it has high-yield makes this perfect candidate for antioxidant study. In this work we investigated the antioxidant activity of corn silk extracts related to the substances and maturity of corn silk samples. Spin trapping electron paramagnetic resonance technique (EPR), 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2&apos;-azino-bis(3-ethylbenzo-thiazoline-6-sulfonic acid) (ABTS) wasused to measure radical scavenging effect. Ferric ion reducing antioxidant power and copper ion reductive capacity methods were also used for research of antioxidant properties. The radical scavenging capacity depended on maturity stage of corn silk as well as on the used extraction process. It was found that the final maturity stage (mature stage) had the most potent radical scavenging effect. Another maturity stage was the earliest (silky stage) which did reach better results than second maturity stage (milky stage) with the worst radical scavenging effect.

Název v anglickém jazyce

Physicochemical study of the antioxidant activity of the corn silk extracts

Popis výsledku anglicky

Antioxidants from natural sources act as free radical scavengers. These compounds help balance oxidation processes and prevent oxidative stress diseases in humans1.Corn silk (Stigma maydis) is a dried thrum and stigma of the female flower Zea mays L.Corn silk extract contains many functional biological substances such as flavonoids, polysaccharides, and steroids2. Due to corn silk availability, price and the fact it has high-yield makes this perfect candidate for antioxidant study. In this work we investigated the antioxidant activity of corn silk extracts related to the substances and maturity of corn silk samples. Spin trapping electron paramagnetic resonance technique (EPR), 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2&apos;-azino-bis(3-ethylbenzo-thiazoline-6-sulfonic acid) (ABTS) wasused to measure radical scavenging effect. Ferric ion reducing antioxidant power and copper ion reductive capacity methods were also used for research of antioxidant properties. The radical scavenging capacity depended on maturity stage of corn silk as well as on the used extraction process. It was found that the final maturity stage (mature stage) had the most potent radical scavenging effect. Another maturity stage was the earliest (silky stage) which did reach better results than second maturity stage (milky stage) with the worst radical scavenging effect.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10403 - Physical chemistry

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů