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Christmas treats: Irradiated turkey off-odour

Date: Dec 1, 2016

Author: Steve Down

Christmas cooks this year might be surprised to learn that raw turkey breast develops an off-odour following irradiation treatment designed to kill pathogens, say researchers in the US, who also studied the factors behind the accompanying change in colour.

Read More thumbnail image: Christmas treats Irradiated turkey off-odour

Depression diagnosis: Lipid biomarker panel

Date: Nov 16, 2016

Author: Steve Down

A panel of specific lipids has been proposed as biomarkers for major depressive disorder following a lipidomics examination that exploits the disturbed metabolism that the sufferers experience.

Read More thumbnail image: Depression diagnosis Lipid biomarker panel

Journal Highlight: In pursuit of resolution in time-of-flight mass spectrometry: A historical perspective

Date: Nov 7, 2016

Author: spectroscopyNOW

Time-of-flight mass spectrometry is reviewed from its inception in the 1940s to the present day. The review is concerned with fundamentals of time-of-flight analyzers and of ion sources to the extent that sources influence analyzers.

Read More thumbnail image: Journal Highlight In pursuit of resolution in time-of-flight mass spectrometry A historical perspective

Polyamines in distilled drinks: Host-guest complexation for mass spectrometry

Date: Nov 1, 2016

Author: Steve Down

Biogenic polyamines that are toxic to humans can be measured in distilled drinks using a direct mass spectrometric method after trapping them in inclusion complexes.

Read More thumbnail image: Polyamines in distilled drinks Host-guest complexation for mass spectrometry

SFC/MS for doping control: Polar drugs resolved

Date: Oct 15, 2016

Author: Steve Down

Polar drugs of abuse that are on the WADA prohibited list and are difficult to separate by HPLC have been analysed successfully using SFC linked to mass spectrometry, providing a complementary technique to give improved coverage.

Read More thumbnail image: SFCMS for doping control Polar drugs resolved

Journal Highlight: Chemically synthesized peptide libraries as a new source of BBB shuttles. Use of mass spectrometry for peptide identification

Date: Oct 10, 2016

Author: spectroscopyNOW

A new high-throughput screening methodology has been developed to identify new peptide blood-brain barrier shuttles in a broadly unexplored chemical space, using state-of-the-art mass spectrometry techniques.

Read More thumbnail image: Journal Highlight Chemically synthesized peptide libraries as a new source of BBB shuttles_ Use of mass spectrometry for peptide identification

Pathogens in eggs: Marker metabolites pass through shells

Date: Oct 1, 2016

Author: Steve Down

Internal contamination of eggs by fungi and bacteria can be confirmed by detecting specific volatile compounds that diffuse through intact eggshells, providing a nondestructive monitor for the food and poultry industries.

Read More thumbnail image: Pathogens in eggs Marker metabolites pass through shells

Prebiotic acids: LC/MS analysis from spark discharge mixtures

Date: Sep 15, 2016

Author: Steve Down

The synthesis of α-hydroxy acids in prebiotic mixtures, which helped to create the organic compounds necessary for Life, can be studied more easily following the development of a new LC/MS method for their measurement.

Read More thumbnail image: Prebiotic acids LCMS analysis from spark discharge mixtures

Journal Highlight: Mass spectrometry-based plant metabolomics: Metabolite responses to abiotic stress

Date: Sep 6, 2016

Author: spectroscopyNOW

Recent applications of metabolomics to study plant responses to environmental factors including drought, salt, low oxygen caused by waterlogging or flooding, temperature, light and oxidative stress have been reviewed.

Read More thumbnail image: Journal Highlight Mass spectrometry-based plant metabolomics Metabolite responses to abiotic stress

Medicinal herb quality: Paper cone spray ionisation mass spectrometry

Date: Sep 1, 2016

Author: Steve Down

Paper cone spray ionisation, a recently developed form of ambient ionisation mass spectrometry, has been used for the chemical fingerprinting of raw Chinese medicinal herbs and can distinguish easily between phenotypes.

Read More thumbnail image: Medicinal herb quality Paper cone spray ionisation mass spectrometry
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