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1. Polyphenolic components of knotwood extracts from Populus tremula (quaking aspen)

   An extract from the knotwood of Populus tremula (quaking aspen) was studied by HPLC, NMR spectroscopy, and mass spectrometry in order to identify new...

   D. E. Tsvetkov, A. S. Dmitrenok, ... N. E. Nifantiev in Russian Chemical Bulletin

   Article 01 August 2022

2. Polyphenolic components of knotwood extracts from Abies sibirica

   An extract from the knotwood of Abies sibirica (Siberian fir) was studied by HPLC, NMR spectroscopy, and mass spectrometry with the goal to identify...

   D. E. Tsvetkov, A. S. Dmitrenok, ... N. E. Nifantiev in Russian Chemical Bulletin

   Article 01 July 2021

3. Polyphenol components of the knotwood extracts of Salix capreal.

   According to HPLC, NMR spectroscopy, and mass spectrometry, the extracts of the knotwood of Salix caprea l . contain catechin ( 1 ), 7- O -(β- d -glucopyranos...

   D. E. Tsvetkov, A. S. Dmitrenok, ... N. E. Nifantiev in Russian Chemical Bulletin

   Article 29 December 2020

4. Chemical constituents of the extracts of the knotwood of Pinus roxburghii Sarg. and their antioxidant activity

   Chemical composition of the extract from the Pinus roxburghii Sarg. knotwood was studied for the first time. The extracts were obtained by ultrasound...

   D. E. Tsvetkov, R. Kumar, ... N. E. Nifantiev in Russian Chemical Bulletin

   Article 01 December 2019

5. Polyphenolicic compounds in the extracts of the birch Betula pendula knotwood

   Four polyphenolic compounds were isolated from the extracts of the birch Betula pendula knotwood, purified by HPLC and identified by NMR spectroscopy...

   D. E. Tsvetkov, A. S. Dmitrenok, ... N. E. Nifantiev in Russian Chemical Bulletin

   Article 01 June 2015

6. Analysis, pretreatment and enzymatic saccharification of different fractions of Scots pine

   Background

   Forestry residues consisting of softwood are a major lignocellulosic resource for production of liquid biofuels. Scots pine, a commercially...

   Monica Normark, Sandra Winestrand, ... Leif J Jönsson in BMC Biotechnology

   Article Open access 19 March 2014
   

7. Direct and Indirect Applications of Sub- and Supercritical Water in Food-Related Analysis

   In this chapter, a brief survey is presented of applications of subcritical and supercritical water in food-related analytical separations. As...

   Michal Roth, Pavel Karásek, ... Karel Šlais in High Pressure Fluid Technology for Green Food Processing

   Chapter 2015
   

8. Subcritical Water as a Green Solvent for Plant Extraction

   Subcritical water extraction (SWE), as a method, is non-toxic, non-flammable, cheap, readily available, safe, environmental friendly and uses a green...

   Mustafa Zafer Özel, Fahrettin Göğüş in Alternative Solvents for Natural Products Extraction

   Chapter 2014
   

9. Pressurized liquid extraction (PLE)

   La pressurized liquid extraction (PLE) — spesso indicata anche con gli acronimi PSE (pressurized solvent extraction) o ASE (accelerated solvent...

   Sabrina Moret, Lanfranco S. Conte in Il campione per l’analisi chimica

   Chapter 2014
   

10. Gold Catalysts for Selective Aerobic Oxidation of the Lignan Hydroxymatairesinol to Oxomatairesinol: Catalyst Deactivation and Regeneration

    Abstract

    The lignan oxomatairesinol was synthesized from the biomass-derived lignan hydroxymatairesinol via selective aerobic oxidation over a...

    Olga A. Simakova, Elena V. Murzina, ... Dmitry Yu Murzin in Catalysis Letters

    Article 22 June 2012
    

11. Critical review on recent developments in solventless techniques for extraction of analytes

    The most recent contributions on solventless extraction techniques have been reviewed. This paper deals with those techniques that use solid phases,...

    C. Nerín, J. Salafranca, ... R. Batlle in Analytical and Bioanalytical Chemistry

    Article 19 October 2008