Screening Analyses of Pinosylvin Stilbenes, Resin Acids and Lignans in Norwegian Conifers

Hovelstad, Hanne; Leirset, Ingebjørg; Øyaas, Karin; Fiksdahl, Anne

doi:10.3390/11010103

Cited by 80 publications

(85 citation statements)

References 22 publications

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“…Increased amounts of stilbenes in knotwood compared to stemwood have been reported for Pinus sylvestris (Willför et al 2003a) and Pinus radiata (Hillis and Inoue 1968;Pietarinen et al 2006a). Mass ratios of pinosylvin monomethyl ether/pinosylvin in the range 1.1 to 1.4 (near the values determined in this work) have been reported for Pinus sylvestris (Hovelstad et al 2006).…”

Section: Water-soluble Saccharidessupporting

confidence: 60%

“…Studies have reported the occurrence and the extraction of pinosylvins from conifers such as Picea abies, Pinus sylvestris (Willför et al 2003a(Willför et al , 2003bPietarinen et al 2006a;Hovelstad et al 2006), Pinus thunbergii (Kokubo et al 1990), Pinus strobus (Geraldo de Carvalho et al 1996), Pinus radiata (Hillis and Inoue 1968), Pinus contorta (Loman 1970), Pinus sibirica, and Pinus cembra (Willför et al 2003c). The occurrence of pinosylvins has also been reported for Pinus jeffreyi (Anderson 1956), Pinus resinosa (Simard et al 2008), and Pinus griffithii (Mahesh and Seshadri 1954).…”

Section: Water-soluble Saccharidesmentioning

confidence: 99%

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Water-Soluble Components of Pinus pinaster Wood

Conde¹,

Fang²,

Hemming³

et al. 2013

BioResources

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Aqueous fractionation of wood has been proposed as a suitable processing method for biorefineries. When treatments are performed under low severity conditions, water-soluble components (which could be detrimental in further processing stages) are removed, whereas polysaccharides, lignin, and other water-insoluble constituents remain in solid phase with little alteration. In order to explore the presence of added-value products in aqueous extracts from Pinus pinaster wood, different samples (heartwood and sapwood with and without knots) were extracted with water at 130 to 140 ºC, and the resulting solutions were assayed for yield and composition (by GC-FID, GC-MS, and HPLC). The major extract components, such as polysaccharide-derived products, simple phenolics, stilbenes, lignans, flavonoids, organic acids, jubaviones, steryl esters, and triglycerides, were identified and quantified. In order to assess a possible application of the extracts, their antioxidant activity was measured using the Trolox Equivalent Antioxidant Capacity assay.

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Section: Water-soluble Saccharidessupporting

confidence: 60%

Section: Water-soluble Saccharidesmentioning

confidence: 99%

Water-Soluble Components of Pinus pinaster Wood

Conde¹,

Fang²,

Hemming³

et al. 2013

BioResources

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“…Previous studies reported that reaction zones in Picea abies wood, the formation of which was induced by the fungus Fomes annosus, contained a significantly increased concentration of hydroxymatairesinol (up to 6% of the total dry mass fraction), whereas the sound sapwood contained negligible amounts of the lignan compounds (Hovelstad et al 2006;Shain and Hillis 1971). At least a small part of brown stained phenolic compounds that occur in the necrotic rays of Picea abies wood may be related to lignans (Johansson et al 2004).…”

Section: Discussionmentioning

confidence: 99%

The onset of hazel wood formation in Norway spruce (Picea abies [L.] Karst.) stems

Račko

Kačík

Mišíková

et al. 2018

Annals of Forest Science

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Key message Fungal infection was outlined as a potential reason for the onset of indented annual growth ring formation during the juvenile phase of hazel wood growth. Annual growth ring indentations resulted from the formation of disturbed zones which originated solely in close proximity to leaf traces. Context Hazel wood is an abnormal type of woody tissue that is formed as a result of exogenous stimuli that may trigger long-term responses in the cambium. Cambial responses produce anatomical alterations in the surrounding xylem tissue that can be observed as an indentation of annual growth rings. The chemical profiles of lignan hydroxymatairesinol may provide an indication of its possible role in the protection of a living tree against the spread of a fungal or microbial infection at the onset of indentation. Aims The objectives of this study were to reveal the anatomical differences in the altered woody tissue of Picea abies hazel wood at both the onset and the later stages of annual growth ring indentation and to determine the chemical profiles for hydroxymatairesinol upon elicitation by a fungal infection in the disturbed zones. Methods Light and scanning electron microscopy observations were carried out on radial, tangential, and cross sections of hazel wood zones separated from P. abies stems. Concentrations of hydroxymatairesinol were determined for both the disturbed zones and the non-indented zones using a gradient high-performance liquid chromatography. Results The formation of disturbed zones was accompanied by significant changes in both the direction and width of the tracheids which produced an abnormal formation of intertwined and twisted tracheids. Fungal hyphae, radial cell wall cracks, and unusually large cross-field pitting were all found in the tracheids of the disturbed zones. Conclusion The content of hydroxymatairesinol in the acetone extract determined from the disturbed zones was 3.4 times greater than that present in the non-disturbed tissues. By means of vascular dysfunction in the leaf traces, host trees responded to the fungal infection by plugging the lumens of conductive leaf trace tissue and filling the vascular pathway with polyphenolic compound deposits.

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“…Lipids in lignocellulose comprise a wide range of different compounds including fatty acids, glycerides, sterols and waxes [45]. Terpenoids such as monoterpenes and diterpenes can be found in softwood residues [46,47] and triterpenes are constituents of hardwood bark [48]. Polyphenols are found in softwood and hardwood and are represented by a wide range of compounds including gallotannins and ellagitannins, proanthocyanidins, flavonoids, lignans and stilbenes [49][50][51].…”

Section: Composition and Treatment Of Lignocellulose Materialsmentioning

confidence: 99%

Effect of Lignocellulose Related Compounds on Microalgae Growth and Product Biosynthesis: A Review

et al. 2014

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Microalgae contain valuable compounds that can be harnessed for industrial applications. Lignocellulose biomass is a plant material containing in abundance organic substances such as carbohydrates, phenolics, organic acids and other secondary compounds. As growth of microalgae on organic substances was confirmed during heterotrophic and mixotrophic cultivation, lignocellulose derived compounds can become a feedstock to cultivate microalgae and produce target compounds. In this review, different treatment methods to hydrolyse lignocellulose into organic substrates are presented first. Secondly, the effect of lignocellulosic hydrolysates, organic substances typically present in lignocellulosic hydrolysates, as well as minor co-products, on growth and accumulation of target compounds in microalgae cultures is described. Finally, the possibilities of using lignocellulose hydrolysates as a common feedstock for microalgae cultures are evaluated.Keywords: lignocellulose; hydrolysis; microalgae; cultivation; extraction; bioproducts OPEN ACCESSEnergies 2014, 7 4447 Microalgae: A Source of Valuable CompoundsMicroalgae include several groups of microorganisms that belong to the Prokaryota or Eukaryota, typically found in fresh water or marine systems in single cell forms or in groups. They are capable of performing photosynthesis, producing approximately half of the atmospheric oxygen while using the greenhouse gas carbon dioxide to grow photoautotrophically [1]. Microalgae contain valuable compounds such as lipids, proteins and pigments (Table 1) which have substantial potential for commercial applications. Microalgae cells accumulate lipids which include triacylglycerides (TAGs), polyunsaturated fatty acids (PUFAs) and sterols [2]. These lipids constitute storage materials or membrane structural components in microalgae and can be used for biofuel, food supplement and pharmaceutical production. Indeed, fossil fuels are nowadays still the main source of carbon based fuels, the exploitation of which causes emission of greenhouse CO 2 . Biodiesel production from oil crops is seen as currently the best alternative, but still presents the main drawback of competing with food production for arable land. Therefore, production of biodiesel from TAGs present in microalgae can become an environmentally friendly alternative as microalgae produce oil and fix CO 2 from atmosphere without the necessity of implementing vast arable areas for cultivation [3]. On the other hand, consumption of PUFAs in the human diet can help prevent the development of cardiovascular and mental diseases [4]. Fish are a rich source of PUFAs, but uncontrolled fishing has led to a substantial decrease in the worldwide fish population [5]. Production of PUFAs from microalgae may overcome this problem. On the other hand, sterols from microalgae are important part of the diet for juvenile scallops or prawns in aquaculture hatcheries [6]. Moreover, the high protein content in microalgae makes them a possible fodder for agricultural livestock [7]. In ad...

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Screening Analyses of Pinosylvin Stilbenes, Resin Acids and Lignans in Norwegian Conifers

Cited by 80 publications

References 22 publications

Water-Soluble Components of Pinus pinaster Wood

Water-Soluble Components of Pinus pinaster Wood

The onset of hazel wood formation in Norway spruce (Picea abies [L.] Karst.) stems

Effect of Lignocellulose Related Compounds on Microalgae Growth and Product Biosynthesis: A Review

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