Antioxidant activity of flavonoids as an important phytochemical compound in plants

Milad Daneshniya¹ Mohammad Hossein Maleki² Hamid Mehdipour Liavali³ Mohammad Reza Hassanjani⁴ Nima Keshavarz bahadori⁵ Moein Ali mohammadi⁶ Hooman Jalilvand nezhad⁷

1) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
2) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
3) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
4) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
5) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
6) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,
7) Young Researchers and elite Club , Qazvin Branch , Islamic Azad University , Qazvin , Iran,

Publication : 2nd International Congress On Engineering, Technology and Innovation(eticong.com/2nd)
Abstract :
Flavonoids are a group of secondary metabolites with variable phenolic structures that are abundantly found in foods with herbal Sources and are often considered as antioxidants. These compounds play different roles in plants and can be extracted in different ways. Flavonoids are the most widespread group of polyphenols found in fruits and vegetables and include a large group of phytochemicals in plants. Also, they are known as phytochemical compounds with high antioxidant activity. Flavonoids are divided into eight families as follows: Flavones, Isoflavones, Flavonols, Flavanones, Dihydroflavonols, Flavan-3-ols, Proanthocyanidins, and Anthocyanidins; each family consists of at least two members. The biosynthesis of these compounds occurs in plants as a secondary metabolite of the phenylpropanoid pathway. The Cytosolic Multiple Enzymatic Complexes play a critical role in the biosynthesis of flavonoids. The antioxidant mechanism of action of flavonoids is transferring hydrogen toward free radicals. Accordingly, the more the structure of flavonoid makes the hydrogen transfer faster and easier, the antioxidant power of flavonoid will be more. Therefore, the antioxidant activity of the flavonoids which have hydroxy groups in their structure is higher among the different flavonoids.
Keywords : Antioxidants Phenolic Compounds plant Synthetic natural