Physicochemical study of the antioxidant activity of the corn silk extracts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F22%3A63557578" target="_blank" >RIV/70883521:28110/22:63557578 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Physicochemical study of the antioxidant activity of the corn silk extracts
Original language description
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'-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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů