Bioactive phenolic compounds, metabolism and properties : a review on valuable chemical compounds in Scots pine and Norway spruce

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Metsämuuronen , S & Sirén , H 2019 , ' Bioactive phenolic compounds, metabolism and properties : a review on valuable chemical compounds in Scots pine and Norway spruce ' , Phytochemistry Reviews , vol. 18 , no. 3 , pp. 623–664 . https://doi.org/10.1007/s11101-019-09630-2

Title: Bioactive phenolic compounds, metabolism and properties : a review on valuable chemical compounds in Scots pine and Norway spruce
Author: Metsämuuronen, Sari; Sirén, Heli
Contributor: University of Helsinki, Department of Chemistry
Date: 2019-06
Language: eng
Number of pages: 42
Belongs to series: Phytochemistry Reviews
ISSN: 1572-980X
URI: http://hdl.handle.net/10138/305520
Abstract: Phenolics and extracted phenolic compounds of Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) show antibacterial activity against several bacteria. The majority of phenolic compounds are stilbenes, flavonoids, proanthocyanidins, phenolic acids, and lignans that are biosynthesized in the wood through the phenylpropanoid pathway. In Scots pine (P. sylvestris), the most abundant phenolic and antibacterial compounds are pinosylvin-type stilbenes and flavonol- and dihydroflavonol-type flavonoids, such as kaempferol, quercetin, and taxifolin and their derivatives. In Norway spruce (P. abies) on the other hand, the main stilbene is resveratrol and the major flavonoids are quercetin and myricetin. In general, when the results from the literature regarding the activities of flavonoid glycosides and their aglycones against a total of twenty-one microorganisms are summarized, it was found that phenolic glycosides are less active than the corresponding aglycones, although a number of exceptions are also known. The aglycones in plants respond to various kinds of biotic stress. Synergistic effects between aglycones and their glycosides have been observed. Minimum inhibition concentrations of below 10 mg L−1 against bacteria have been reported for gallic acid, apigenin, and several methylated and acylated flavonols present in these industrially important trees. In general, the phenolic compounds are more active against Gram-positive bacteria, but apigenin is reported to exhibit strong activity against Gram-negative bacteria. The present review lists some of the biosynthesis pathways for the antibacterial phenolic metabolites found in Scots pine (P. sylvestris) and Norway spruce (P. abies). The antimicrobial activity of the compounds is collected and compared to gather information about the most effective secondary metabolites.
Subject: ACYLATED FLAVONOL GLYCOSIDES
ANTIBACTERIAL ACTIVITY
ANTIOXIDANT ACTIVITY
Antibacterial compounds
EMBRYOGENIC-CELL CULTURES
Metabolic pathway
Norway spruce
PICEA-ABIES
Phenols
Plant enzymes
RESISTANT STAPHYLOCOCCUS-AUREUS
SECONDARY METABOLITES
SOLID-STATE FERMENTATION
STILBENE SYNTHASE
Scots pine
UV-B RADIATION
Wood
116 Chemical sciences
1182 Biochemistry, cell and molecular biology
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