Secondary Metabolites

Agostini-Costa, Tnia da S.; Roberto, F.; Humberto, R.; Silveira, Dmaris; Marcos, A.

doi:10.5772/35705

Cited by 44 publications

(28 citation statements)

References 76 publications

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“…Plants produce hundreds of non-protein amino acids, among which L-DOPA, 4 a compound with strong allelopathic activity, stands out. This allelochemical is found in large quantities (1% and 4-7% in the leaves and seeds, respectively) 5 in velvet bean [Mucuna pruriens (L.) var.…”

mentioning

confidence: 99%

The role of L-DOPA in plants

Soares

Marchiosi

Siqueira-Soares

et al. 2014

Plant Signaling & Behavior

148

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confidence: 99%

The role of L-DOPA in plants

Soares

Marchiosi

Siqueira-Soares

et al. 2014

Plant Signaling & Behavior

148

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“…Based on their chemical characteristics, they can be classified into a number of groups, such as alkaloids, characterized by a basic nitrogen function, or phenolics, which are characterized by aromatic ring systems having a phenolic hydroxyl group, or other groups with a certain type of basic skeleton, e.g., anthracene, coumarine, quinone, indole, isoquinoline, etc. [19]. Alkaloids, which are defined as pharmacologically active basic compounds synthesized by living organisms, containing one or more heterocyclic nitrogen atoms and derived mostly from amino acids, compose a very large group of secondary metabolites.…”

Section: Plant Secondary Metabolitesmentioning

confidence: 99%

A Novel Approach for Production of Colchicine as a Plant Secondary Metabolite by in Vitro Plant Cell and Tissue Cultures

Kefi¹

2018

JAST-A

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The secondary metabolites synthesized by plants are economically important chemical compounds in the agricultural and industrial areas such as food, perfumery and pharmaceutical sectors. In recent years, attempts for their production by in vitro plant cell and tissue cultures have been accelerated considerably. Colchicine, the principle secondary metabolite of Colchicum autumnale L. and Gloriosa superba L., is an important alkaloid that has poison effect used for treatment of various diseases and plant breeding studies. Presently, colchicine has been produced by using the seeds of C. autumnale L. and the tubers of G. superba L. through different chemical extraction methods. Applying in vitro plant cell and tissue cultures together with metabolic and genetic engineering techniques, large-scale production of colchicine can be achieved from the above two plant species.

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“…Medicinal plants can be considered an extensive and not expensive source of phytochemicals, which are valuable compounds for pharmaceutical industry application and drug discovery, thanks to their important antioxidant, antibacterial, antiviral and antitumour properties …”

Section: Introductionmentioning

confidence: 99%

Comparison of different green‐extraction techniques and determination of the phytochemical profile and antioxidant activity of Echinacea angustifolia L. extracts

Russo

Faraone

Labanca

et al. 2019

Phytochemical Analysis

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Introduction Nowadays several plant species, such as Echinacea angustifolia L., can be considered natural important sources for therapeutic applications. Echinacea angustifolia is one of the most known medicinal plants, it shows protective and preventive effects against many chronic diseases, thanks to immunostimulant properties, mostly due to its polysaccharides and antioxidants. However, the optimisation of green extraction techniques to respect the environment is, currently, a hard challenge for the recovery of secondary metabolites. Methodology Hydro‐enzymatic extraction has been performed for the first time, it was compared with other different extraction techniques, for their efficacy in bioactive compound recovery. Phytochemical characterisation has been carried out through high‐performance liquid chromatography diode array detector (HPLC‐DAD) analysis and the antioxidant activity has been also measured. Results The highest extractive yields and the strongest antioxidant activity was obtained by cellulase and xylanase enzyme extraction. The enzymatic extraction with pectinase enzyme led to a higher polysaccharide content in comparison with the literature. The hydro‐enzymatic extraction method and analytical conditions allowed the identification and quantification of two compounds, to the best of our knowledge, for the first time in E. angustifolia root extract. Conclusion The optimised extraction methods discussed in this work led to a higher polysaccharides content, in comparison to previous literature results. The enzymatic extraction seems to be the best extraction technique, in terms of antioxidant yield and efficacy in bioactive compound recovery.

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Secondary Metabolites

Cited by 44 publications

References 76 publications

The role of L-DOPA in plants

The role of L-DOPA in plants

A Novel Approach for Production of Colchicine as a Plant Secondary Metabolite by in Vitro Plant Cell and Tissue Cultures

Comparison of different green‐extraction techniques and determination of the phytochemical profile and antioxidant activity of Echinacea angustifolia L. extracts

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