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  • Title: Phenolic compounds, antioxidant capacity and antimutagenic activity in different growth stages of in vitro raised plants of Origanum vulgare L.
    Author: Pandey A, Belwal T, Tamta S, Bhatt ID, Rawal RS.
    Journal: Mol Biol Rep; 2019 Apr; 46(2):2231-2241. PubMed ID: 30756335.
    Abstract:
    Efficient micropropagation procedure was developed for Origanum vulgare, a high-value culinary herb, and the phytochemicals, phenolic content, antioxidant and antimutagenic activity of leaf and stem, derived from different growing stages were analyzed. The agar solidified Murashige and Skoog (MS) medium supplemented with a combination of 6-benzylaminopurine and α-naphthaleneacetic acid was optimized as best shoot-multiplication-medium. Shoots were rooted best on 1/2 strength MS medium supplemented with 50 µM indole-3-butyric acid (IBA). The plantlets were successfully acclimatized ex vitro in a soil, sand and farmyard manure mixture (2:1:1 v/v/v) with 100% survival rate in greenhouse. The total anthocyanin and total phenolic content were observed significantly higher in leaves of in vitro-raised plants. However, total tannin, flavonoid and antioxidant activity remained higher in leaves of mother plant maintained under ployhouse condition. All the plant extracts have shown significant antimutagenic activity except in vitro-growing plants. A total of 13 polyphenolic compounds were detected in different extracts using high performance liquid chromatography. Among these, catechin was detected maximum in in vitro-growing cultures and chlorogenic acid in leaves of mother plant. These findings will help the farmers, medicinal plant growers, and industries for mass multiplication and effective extraction of phytochemicals from O. vulgare.
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