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Ultrahigh-pressure supercritical fluid extraction and chromatography of Moringa oleifera and Moringa peregrina seed lipids

An ultrahigh-pressure supercritical fluid extraction method was optimized and applied to extract seed oil lipids from two moringa species, namely Moringa oleifera (MO) and Moringa peregrina (MP). A full-factorial design was used to investigate the direct and interaction influence of pressure and temperature in the range of 40 to 80 MPa and 40 to 70 °C, respectively, on the...

Oxidative Depolymerisation of Lignosulphonate Lignin into Low-Molecular-Weight Products with Cu–Mn/δ-Al2O3

Lignin depolymerisation receives great attention due to the pressing need to find sustainable alternatives to fossil sources for production of fuels and chemicals. In this study, alumina-supported Cu–Mn and Ni–Mo catalysts were tested for oxidative depolymerisation of a technical lignin stream—sodium lignosulphonates—to produce valuable low-molecular-weight aromatics that may be...

Identification of lignin oligomers in Kraft lignin using ultra-high-performance liquid chromatography/high-resolution multiple-stage tandem mass spectrometry (UHPLC/HRMSn)

Kraft lignin is the main source of technically produced lignin. For the development of valuable products based on Kraft lignin, its molecular structure is important. However, the chemical composition of Kraft lignin is still not well known. So far, the analysis of Kraft lignin by mass spectrometry (MS) has been mainly focused on monomeric compounds. Previous MS studies on lignin...

Analytical chemistry for a sustainable society – trends and implications

, Department of Chemistry, Lund University , P.O. Box 124, 22100 Lund , Sweden 1 Analytical Chemistry, Department of Chemistry - BMC, Uppsala University , P.O. Box 599, 75124 Uppsala , Sweden 2 Charlotta Turner ... applications of analytical chemistry. Method development in itself involves obtaining faster, more sensitive, - Published in the topical collection Euroanalysis XIX with guest editors Charlotta Turner and

Ultra-high-performance supercritical fluid chromatography with quadrupole-time-of-flight mass spectrometry (UHPSFC/QTOF-MS) for analysis of lignin-derived monomeric compounds in processed lignin samples

-22100 Lund , Sweden 1 Charlotta Turner The conversion of lignin to potentially high-value low molecular weight compounds often results in complex mixtures of monomeric and oligomeric compounds. In this

Probiotic fruit beverages with different polyphenol profiles attenuated early insulin response

Consumption of polyphenol-rich fruits and vegetables may improve postprandial glucose and insulin levels and hence promote well-being. Previously it has been observed that consumption of bilberry decreases the postprandial insulin demand. The intention with the present study was to compare the impact of different supplements with various polyphenol profiles, on the postprandial...

Superamphiphobic coatings based on liquid-core microcapsules with engineered capsule walls and functionality

Scholar Search for Thomas Paulraj in:Nature Research journals • PubMed • Google Scholar Search for Charlotta Turner in:Nature Research journals • PubMed • Google Scholar Search for Valter Ström in:Nature

Green and Efficient Extraction Method to Determine Polyphenols in Cocoa and Cocoa Products

declares that she has no conflict of interest. Charlotta Turner declares that she has no conflict of interest. Ethical Approval This article does not contain any studies with human participants or animals

Supercritical Fluid Extraction and Chromatography of Lipids in Bilberry

-015-2680-x) contains supplementary material, which is available to authorized users. * Charlotta Turner is an important nutritional resource for both humans and animals. In Europe, bilberry is also

Pressurised hot water extraction in continuous flow mode for thermolabile compounds: extraction of polyphenols in red onions

Extraction and analysis of labile compounds in complex sample matrices, such as plants, is often a big analytical challenge. In this work, the use of a “green and clean” pressurised hot water extraction (PHWE) approach performed in continuous flow mode is explored. Experimental data for extraction and degradation kinetics of selected compounds were utilised to develop a...

A Novel Molecularly Imprinted Polymer for the Selective Removal of Chlorophyll from Heavily Pigmented Green Plant Extracts prior to Instrumental Analysis

 Ronald Majors,3 Charlotta Turner,4 and Nelson Torto2 1Department of Earth & Environmental Science (Chemistry Unit), Botswana International University of Science & Technology, P.O. Box 041, Bontleng

Aglycone specificity of Thermotoga neapolitana β-glucosidase 1A modified by mutagenesis, leading to increased catalytic efficiency in quercetin-3-glucoside hydrolysis

Background The thermostable β-glucosidase (TnBgl1A) from Thermotoga neapolitana is a promising biocatalyst for hydrolysis of glucosylated flavonoids and can be coupled to extraction methods using pressurized hot water. Hydrolysis has however been shown to be dependent on the position of the glucosylation on the flavonoid, and e.g. quercetin-3-glucoside (Q3) was hydrolysed slowly...