A5071374457- Meat and Animal Product Quality
- Analytical Chemistry and Chromatography
- Mass Spectrometry Techniques and Applications
- Seaweed-derived Bioactive Compounds
- Pharmacological Effects and Assays
- Fatty Acid Research and Health
- Lignin and Wood Chemistry
- Phytochemicals and Antioxidant Activities
- Metabolomics and Mass Spectrometry Studies
- Muscle metabolism and nutrition
- Algal biology and biofuel production
- Advanced Chemical Sensor Technologies
- Microbial Metabolic Engineering and Bioproduction
- Biofuel production and bioconversion
- Advanced Chemical Physics Studies
- Digestive system and related health
- Echinoderm biology and ecology
- Infant Nutrition and Health
- Proteins in Food Systems
- Enzyme Catalysis and Immobilization
- Diet, Metabolism, and Disease
- Ruminant Nutrition and Digestive Physiology
- Antibiotics Pharmacokinetics and Efficacy
- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
Norwegian University of Life Sciences
2016-2025
Bangladesh Livestock Research Institute
2014
Oregon State University
2007
SINTEF
2004
The Research Council of Norway
2002
University of Oslo
1991-1993
Phenolic compounds in strawberry (Fragaria x ananassa) fruits were identified and characterized by using the complementary information from different high-performance liquid chromatography detectors: diode array, mass spectrometer positive negative mode, coulometric array. Electrochemical profiles obtained array detector contributed to structural elucidation suggested UV-vis spectra. About 40 phenolic including glycosides of quercetin, kaempferol, cyanidin, pelargonidin, ellagic acid,...
Abstract Negative electrospray ionization tandem quadrupole mass spectrometry was used to study the collision‐induced dissociation (CID) of O ‐glycosidic bond from different commercially available flavonoid glycosides. Depending on structure, glycosides can undergo both a homolytic and heterolytic cleavage producing deprotonated radical aglycone ((Y 0 − H) −· ) (Y product ions. The relative abundance fragment flavonol‐3‐ ‐glycosides increased with increasing number hydroxyl substituents in B...
In this study the impact of achenes on polyphenolic compounds, ascorbic acids, and antioxidant activities in strawberry purees at production after storage 6 22 °C for 8 16 weeks was investigated. Strawberry were made from flesh, berry, achene-enriched homogenate contained 0, 1.2, 2.9% achenes, respectively. At production, flesh more anthocyanins, p-coumaroyl glycosides, whereas increasing achene levels caused ellagic acid derivatives, proanthocyanidins, flavonols, total phenolics (TP),...
Lytic polysaccharide monooxygenases (LPMOs) catalyze oxidative cleavage of crystalline polysaccharides such as cellulose and are crucial for the conversion plant biomass in Nature industrial applications. Sunlight promotes microbial litter; this effect has been attributed to photochemical degradation lignin, a major redox-active component secondary cell walls that limits enzyme access wall carbohydrates. Here, we show exposing lignin visible light facilitates solubilization by promoting...
ABSTRACT This study aimed to comprehensively analyze lipid classes after in vitro digestion of high‐fat commercial dairy products. The research focused on the fatty acid (FA) profiles triacylglycerols, diacylglycerols, monoacylglycerols (MAG), free FA (FFA), and polar lipids digested full‐fat cream, sour cream cheese, a Gouda‐type cheese. We employed INFOGEST 2.0 model. isolated were fractionated by solid‐phase extraction, profile each fraction was analyzed using GC–MS. products revealed...
Mucoromycota fungi are important producers of low- and high-value lipids. Mortierella alpina is used for arachidonic acid production at industrial scale. In addition, oleaginous promising candidates biodiesel production. A critical step in the development such biotechnological applications selection suitable strains lipid The aim present study was to use Duetz-microtiter plate system combined with Fourier transform infrared (FTIR) spectroscopy high-throughput screening potential 100 produce...
The aim of the present study was to get a total physical and chemical characterization comparison principal components in Bangladeshi buffalo (B), Holstein cross (HX), Indigenous cattle (IC) Red Chittagong Cattle (RCC) milk. Protein casein (CN) composition type, micellar size (CMS), naturally occurring peptides, free amino acids, fat, milk fat globule (MFGS), fatty acid composition, carbohydrates, individual minerals were analyzed. These are related technological nutritional properties...
Abstract Oleaginous filamentous fungi grown under the nitrogen limitation, accumulate high amounts of lipids in form triacylglycerides (TAGs) with fatty acid profiles similar to plant and fish oils. In this study, we investigate effect six phosphorus source concentrations combined two types substrate (yeast extract ammonium sulphate), on biomass formation, lipid production, profile for nine oleaginous Mucoromycota fungi. The analysis was performed by gas chromatography flame ionization...
Abstract This is a comprehensive study of fatty acid (FA) profiles in milk from bovine, caprine, ovine, asine, and equine species. Milks these species are universally common as constituents variety different food dairy products. We have obtained structural information on FAs, discussed their correlation to health effects. The extracted fat all were derivatized FA methyl esters for analysis by GC‐MS. Large differences the lipid content composition between ruminants non‐ruminants observed....
There is a growing interest in more wholesome utilization of biomass as the need for greener chemistry and non-mineral oil-based products increases. Lignin largest renewable resource aromatic chemicals, which found all types lignocellulosic biomass. Steam-explosion useful pretreatment technique to make polymeric material available processing. However, this heat-based known result formation pseudo-lignin, lignin-like polymer made from carbohydrate degradation products. In work, we have...
Abstract Background Oleaginous filamentous fungi can accumulate large amount of cellular lipids and potentially serve as a major source oleochemicals for food, feed, chemical, pharmaceutical, transport industries. Transesterification microbial oils is an essential step in lipid production at both laboratory industrial scale. Direct transesterification considerably reduce costs, increase sample throughput improve yields (in particular fatty acid methyl esters, FAMEs). There need the...
The fatty acid profiles of wild and farmed Atlantic salmon (
An analytical method that can detect low levels of oxidation in food earlier than a sensory panel would be valuable tool for manufacturers as well research institutes. Two model matrixes, pork back fat and mechanically recovered poultry meat (MRPM), were freeze-stored air at −20 °C 26 weeks. Peroxide value, thiobarbituric acid reactive substances, volatiles analyzed with dynamic headspace gas chromatography−mass spectrometry (GC-MS) gas-sensor array technique (electronic nose),...
Abstract Temperature significantly impacts bacterial physiology, metabolism and cell chemistry. In this study, we analysed lipids the total cellular biochemical profile of 74 fast‐growing Antarctic bacteria grown at different temperatures. Fatty acid diversity temperature‐induced alterations aligned with classification—Gram‐groups, phylum, genus species. Total lipid content, varied from 4% to 19% dry weight, was genus‐ species‐specific. Most increased content lower The effect temperature on...
Dynamic headspace/gas chromatography−mass spectrometry (GC-MS), front-face fluorescence spectroscopy, and a gas-sensor array technique (electronic nose) have previously detected lipid oxidation in pork back fat or mechanically recovered poultry meat earlier than at the same time as sensory panel. The present study was focused on measurement of early more complicated product (freeze-stored, smoked sausages with spices). During storage time, formation components contributing to rancid odor...
Abstract The products obtained after the reaction between flavonols and stable free radical 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH • ) in both methanol acetonitrile were characterized using liquid chromatography coupled with negative electrospray ionization tandem mass spectrometry (LC/ESI‐MS/MS) NMR spectroscopy. studied quercetin, kaempferol myricetin. In methanol, two of oxidized quercetin identified LC/ESI‐MS/MS NMR. Quercetin was through a transfer H‐atoms to DPPH subsequently incorporated...