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  2. Naturally occurring phenols - Wikipedia

    en.wikipedia.org/wiki/Naturally_occurring_phenols

    This article is about the class of organic compounds containing a phenol group. For the parent compound, see Phenol. In biochemistry, naturally occurring phenols are natural products containing at least one phenol functional group. [ 1 ][ 2 ][ 3 ] Phenolic compounds are produced by plants and microorganisms. [ 4 ]

  3. Phenols - Wikipedia

    en.wikipedia.org/wiki/Phenols

    In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (−O H) bonded directly to an aromatic hydrocarbon group. [1] The simplest is phenol, C 6 H 5 OH. Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the ...

  4. Phenol - Wikipedia

    en.wikipedia.org/wiki/Phenol

    Phenol is also a versatile precursor to a large collection of drugs, most notably aspirin but also many herbicides and pharmaceutical drugs. Phenol is a component in liquid–liquid phenol–chloroform extraction technique used in molecular biology for obtaining nucleic acids from tissues or cell culture samples.

  5. Polyphenol - Wikipedia

    en.wikipedia.org/wiki/Polyphenol

    Polyphenols (/ ˌpɒliˈfiːnoʊl, - nɒl /) are a large family of naturally occurring phenols. [ 1 ] They are abundant in plants and structurally diverse. [ 1 ][ 2 ][ 3 ] Polyphenols include phenolic acids, flavonoids, tannic acid, and ellagitannin, some of which have been used historically as dyes and for tanning garments.

  6. Phenol red - Wikipedia

    en.wikipedia.org/wiki/Phenol_red

    Phenol red is a weak estrogen mimic, and in cell cultures can enhance the growth of cells that express the estrogen receptor. [11] It has been used to induce ovarian epithelial cells from post-menopausal women to differentiate into cells with properties of oocytes (eggs), with potential implications for both fertility treatment and stem cell ...

  7. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.

  8. Antioxidant effect of polyphenols and natural phenols

    en.wikipedia.org/wiki/Antioxidant_effect_of_poly...

    A polyphenol antioxidant is a hypothesized type of antioxidant studied in vitro. Numbering over 4,000 distinct chemical structures mostly from plants, such polyphenols have not been demonstrated to be antioxidants in vivo. [1][2][3] In vitro at high experimental doses, polyphenols may affect cell-to-cell signaling, receptor sensitivity ...

  9. Tannin - Wikipedia

    en.wikipedia.org/wiki/Tannin

    Tannins are mainly physically located in the vacuoles or surface wax of plants. These storage sites keep tannins active against plant predators, but also keep some tannins from affecting plant metabolism while the plant tissue is alive. Tannins are classified as ergastic substances, i.e., non-protoplasm materials found in cells.