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Phytochemistry

Phytochemistry is the study of chemicals produced by plants, known as phytochemicals. The document discusses how phytochemists strive to describe the structures and functions of secondary metabolites found in plants, as well as how plants synthesize these compounds for protection and other reasons. The major classes of phytochemicals are alkaloids, phenylpropanoids, polyketides, and terpenoids. Phytochemistry involves techniques like extraction and isolation of natural products, and chromatography. Many plants produce phytochemicals for defense against herbivores and human settlements are often surrounded by weeds containing phytochemicals.

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64 views2 pages

Phytochemistry

Phytochemistry is the study of chemicals produced by plants, known as phytochemicals. The document discusses how phytochemists strive to describe the structures and functions of secondary metabolites found in plants, as well as how plants synthesize these compounds for protection and other reasons. The major classes of phytochemicals are alkaloids, phenylpropanoids, polyketides, and terpenoids. Phytochemistry involves techniques like extraction and isolation of natural products, and chromatography. Many plants produce phytochemicals for defense against herbivores and human settlements are often surrounded by weeds containing phytochemicals.

Uploaded by

vijay kumar honnali
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Phytochemistry

Chemistry of life

 Index
 Outline
 History

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Key components

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List of biochemists

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Biomolecule families

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Chemical synthesis

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Biochemistry fields

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Glossaries

 Category

 v
 t
 e

Phytochemistry is the study of phytochemicals, which are chemicals derived


from plants. Phytochemists strive to describe the structures of the large number
of secondary metabolites found in plants, the functions of these compounds in human
and plant biology, and the biosynthesis of these compounds. Plants synthesize
phytochemicals for many reasons, including to protect themselves
against insect attacks and plant diseases. The compounds found in plants are of many
kinds, but most can be grouped into four major biosynthetic
classes: alkaloids, phenylpropanoids, polyketides, and terpenoids.

Phytochemistry can be considered a subfield of botany or chemistry. Activities can be


led in botanical gardens or in the wild with the aid of ethnobotany. Phytochemical
studies directed toward human (i.e. drug discovery) use may fall under the discipline
of pharmacognosy, whereas phytochemical studies focused on the ecological functions
and evolution of phytochemicals likely fall under the discipline of chemical ecology.
Phytochemistry also has relevance to the field of plant physiology.

Techniques[edit]
Techniques commonly used in the field of phytochemistry are extraction, isolation,
and structural elucidation (MS,1D and 2D NMR) of natural products, as well as
various chromatography techniques (MPLC, HPLC, and LC-MS).

Phytochemicals[edit]
Many plants produce chemical compounds for defence against herbivores. The major
classes of pharmacologically active phytochemicals are described below, with examples
of medicinal plants that contain them.[1] Human settlements are often surrounded by
weeds containing phytochemicals, such as nettle, dandelion and chickweed.[2][3]

Many phytochemicals, including curcumin, epigallocatechin gallate, genistein,


and resveratrol are pan-assay interference compounds and are not useful in drug
discovery

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