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Journal Highlight: Continuous desalting of refolded protein solution improves capturing in ion exchange chromatography

Date: Jul 3, 2017

Author: separationsNOW

By combining anion-exchange and cation-exchange chromatography columns in series, two Austrian scientists have created a novel process for the continuous desalting of protein solutions.

Read More thumbnail image: Journal Highlight Continuous desalting of refolded protein solution improves capturing in ion exchange chromatography

Journal Highlight: Determination of three capsaicinoids in raw red peppers and seasoning powders by LC with coulometric detection

Date: Jul 3, 2017

Author: separationsNOW

Scientists from Japan and Belgium have used a coulometric detector with liquid chromatography to determine the concentrations of three capsaicinoids in red peppers, both raw and in food.

Read More thumbnail image: Journal Highlight Determination of three capsaicinoids in raw red peppers and seasoning powders by LC with coulometric detection

Buffalo milk: Bioactive peptides

Date: Jul 1, 2017

Author: Steve Down

Peptides derived from the proteins in buffalo milk fat and colostrum by simulated gastrointestinal digestion have a range of bioactive properties, say Indian researchers, highlighting their potential as health product ingredients and neutraceuticals.

Read More thumbnail image: Buffalo milk Bioactive peptides

DEREK peers at plethora of products in rat urine

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

Fluvastatin is a commonly used statin compound, so it is important to carefully study its metabolites. Researchers based at the National Institutes of Pharmaceutical Education and Research in Hyderabad and S.A.S Nagar examined the metabolites of fluvastatin formed in vivo by rats, along with those formed in vitro by human or rat liver microsomes, using UHPLC-MS/MS. They subsequently ran in silico toxicity studies on these compounds.

Read More thumbnail image: DEREK peers at plethora of products in rat urine

Synthetic Psychoactive Substances Sorted by LC-MS

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

Large numbers of new psychoactive substances (NPS) are produced and sold on the internet every year, providing a challenge for law enforcement agencies. Scientists from the Karolinska Institute and the Karolinska University Laboratory (both in Stockholm) have developed a liquid chromatography-high resolution mass spectrometry method (LC-HRMS) to detect a wide range of such substances, together with legal psychoactive pharmaceuticals and naturally occurring alkaloids.

Read More thumbnail image: Synthetic Psychoactive Substances Sorted by LC-MS

E-liquids’ hidden alcohol revealed by GC protocol

Date: Jul 1, 2017

Author: Ryan De Vooght-Johnson

E-cigarettes are increasingly popular, but doubts remain about their safety and the appropriate level of regulation. Scientists from the Virginia Commonwealth University in Richmond investigated the amount of ethanol in e-liquids by GC with headspace analysis, finding relatively high levels in a number of brands.

Read More thumbnail image: E-liquids hidden alcohol revealed by GC protocol

Answering Life's Questions with Spectroscopy

Date: Jun 28, 2017

Author: Jon Evans

Spectroscopy has been a common analytical technique in laboratories for many years. Recently, however, it has begun to emerge from the laboratory, both figuratively and literally, as more and more researchers discover that it is ideally placed to answer the questions they want to ask.

Read More thumbnail image: Answering Lifes Questions with Spectroscopy

Journal Highlight: Metabolomic analyses of the haemolymph of the Asian citrus psyllid Diaphorina citri, the vector of huanglongbing

Date: Jun 26, 2017

Author: separationsNOW

Scientists in the US have used gas chromatography and anion-exchange chromatography to analyze the chemical composition of the insect circulatory fluid known as haemolymph in the Asian citrus psyllid, a major insect pest of citrus plants.

Read More thumbnail image: Journal Highlight Metabolomic analyses of the haemolymph of the Asian citrus psyllid Diaphorina citri the vector of huanglongbing

Journal Highlight: Separation of cucurbitane triterpenoids from bitter melon drinks and determination of partition coefficients using vortex-assisted dispersive LPME followed by UHPLC analysis

Date: Jun 26, 2017

Author: separationsNOW

Researchers in the US and China have developed a novel vortex-assisted liquid–liquid microextraction method for extracting cucurbitane triterpenoids from bitter melon juices.

Read More thumbnail image: Journal Highlight Separation of cucurbitane triterpenoids from bitter melon drinks and determination of partition coefficients using vortex-assisted dispersive LPME followed by UHPLC analysis

Journal Highlight: The effect of ageing on changes in myofibrillar protein in selected muscles in relation to the tenderness of meat obtained from cross-breed heifers

Date: Jun 26, 2017

Author: separationsNOW

Polish food scientists have used gel electrophoresis and Western blotting to investogate the effects of aging on selected myofibrillar proteins in meat from cows.

Read More thumbnail image: Journal Highlight The effect of ageing on changes in myofibrillar protein in selected muscles in relation to the tenderness of meat obtained from cross-breed heifers
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