Evaluation of microwave radiation method for sample preparation of pine needles and wood for carbohydrate analysis

Klõšeiko, Jaan

doi:10.1007/s11738-006-0050-x

Cited by 1 publication

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References 15 publications

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“…As expected, glucose, fructose and sucrose were present in all extracts, except from those of pine soil. These carbohydrates are ubiquitous in plants and have previously been found in pine needles (Kltšeiko 2006) and in juniper berries (Türkoglu et al 2008).…”

Section: Evaluation Of Polar Compounds In Pine and Juniper Forestsmentioning

confidence: 92%

From plant to soil: Quantitative changes in pine and juniper extractive compounds at different transformation stages

et al. 2022

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Purpose The transformation of extractable plant compounds after their incorporation into soil was qualitatively and quantitatively studied in two forests under Juniperus communis L. and Pinus sylvestris L. Methods Leaf, litter and soil samples were taken from representative pine and juniper forests in central Spain. The lipid fraction was extracted with dichloromethane, while methanol was used for polar compounds, which were then derivatized (silylation-oximation). Extracts were analyzed by gas chromatography-mass spectrometry. van Krevelen’s graphical-statistical method, enhanced as surface density maps, was used to study changes in molecular assemblages during their transformation from plant to soil. Shannon Wiener diversity indices were also determined for the main groups of molecules to quantify the progressive removal or the appearance of new compounds throughout the transformation. Results In the lipid fraction up to 126 compounds were identified, mainly alkanes (C10–C30 in pine forest and C10–C36 in juniper forest), fatty acids and cyclic compounds. In the polar extracts, up to 22 compounds were found, mainly sugars, polyols, cyclic acids and fatty acids. Conclusion Comparing the successive stages of evolution of leaf extractive compounds, alkanoic acids and disaccharides tend to accumulate in the soil. On the other hand, the greatest molecular complexity was found in the intermediate stage (litter), and attributed to the coexistence of biogenic compounds with their transformation products, while the molecular complexity was simpler in soil extracts. This preliminary investigation could be extended to specific studies on the factors that determine the quality of soil organic matter under different environmental scenarios.

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Section: Evaluation Of Polar Compounds In Pine and Juniper Forestsmentioning

confidence: 92%

From plant to soil: Quantitative changes in pine and juniper extractive compounds at different transformation stages

et al. 2022

View full text Add to dashboard Cite

show abstract

Evaluation of microwave radiation method for sample preparation of pine needles and wood for carbohydrate analysis

Cited by 1 publication

References 15 publications

From plant to soil: Quantitative changes in pine and juniper extractive compounds at different transformation stages

From plant to soil: Quantitative changes in pine and juniper extractive compounds at different transformation stages

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