Research Technician
- 51cg
-
- Email Address
- gary.duncan@abdn.ac.uk
- Telephone Number
- +44 (0)1224 438669
- School/Department
- School of Medicine, Medical Sciences and Nutrition
Biography
Gary has over 25 years of Mass Spectrometry experience. He started work at what was then the Rowett Research Institute in 1986, and after six weeks training in analytical techniques, started working in the Gas Isotope Ratio Mass Spectrometry (GIRMS) laboratory assisting Dr Brian McGaw and Mr Eric Milne. As interest in this technique grew, the lab eventually had four mass spectrometers dedicated to analysing the stable isotopes of Carbon, Hydrogen and Oxygen from a variety of biological sources, supporting research into energy expenditure and protein synthesis. The research programmes of the Rowett then required Liquid Chromatography Mass Spectrometry (LC/MS) and a MAT 900 double-sector LC-MS/MS system was purchased in 1998, along with a LaserMAT MALDI mass spectrometer. Initially his role was to develop techniques for sample analysis on the MALDI, but soon took over the role of managing the LC/MS mass facility. This coincided with a ‘take-off’ in the popularity of using LCMSMS in sample analysis, firstly in the growth of identifying proteins separated on 2D gels and more recently the targeted quantitation analysis of small molecules. The main areas of analysis are in the quantification of Polyphenols relating to dietary consumption and human health and the quantification of Mycotoxins in foods and crops, in particular, the detoxification of Deoxynivalenol. The LCMSMS facility now has four mass spectrometers, with access to an ion trap to support work in these areas of research.
Other Areas of interest include:
- Vitamin D3
- Methylamines
- Anthocyanins
- Nicotinamides
- Carboxymethyl Lysines
- Antibiotics
Latest Publications
Nutritional and Phytochemical Characterization of Commercially Available Chia, Quinoa, Pumpkin Seed, Flaxseed and Triticale Products
Plants, vol. 15, no. 13, 2079Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Nutritional composition and functional properties of Scottish cold-pressed hemp oil and by-products for sustainable food applications
Grain & Oil Science and TechnologyContributions to Journals: Articles- [ONLINE]
- [ONLINE] DOI:
Hemp Seed Hull Powder: A Sustainable Source of Bioavailable Micronutrients and Phytochemicals with Inhibitory Activity Against α-Amylase and α-Glucosidase
Food Bioscience, vol. 79, 108691Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Persimmon by-products, rich in fibre, promote beneficial gut bacteria
Food & Function, vol. 17, no. 5, pp. 2340-2356Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Nutritional Content, Phytochemical Composition, and Physicochemical Properties of Different Quinoa (Chenopodium quinoa Willd.) Seed Varieties
Cereal Chemistry, vol. 103, no. 1, pp. 93-109Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
- Publications
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Page 2 of 3 Results 26 to 50 of 69
Intestinal hydrolysis and microbial biotransformation of diacetoxyscirpenol-α-glucoside, HT-2-β-glucoside and N-(1-deoxy-d-fructos-1-yl) fumonisin B1 by human gut microbiota ¾±²ÔÌý±¹¾±³Ù°ù´Ç
International Journal of Food Sciences and Nutrition, vol. 71, no. 5, pp. 540-548Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Multi-mycotoxin exposure assessment in UK children using urinary biomarkers - a pilot survey
Journal of Agricultural and Food Chemistry, vol. 68, no. 1, pp. 351-357Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
Rapid method for quantification of anthocyanidins and anthocyanins in human biological samples
Food Chemistry, vol. 290, pp. 56-63Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
Porcine small and large intestinal microbiota rapidly hydrolyze the masked mycotoxin deoxynivalenol-3-glucoside and release deoxynivalenol in spiked batch cultures in vitro
Applied and Environmental Microbiology, vol. 84, no. 2, pp. 1-9Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Masked trichothecene and zearalenone mycotoxins withstand digestion and absorption in the upper GI tract but are efficiently hydrolyzed by human gut microbiota in vitro
Molecular Nutrition & Food Research, vol. 61, no. 4, 1600680Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [OPEN ACCESS]
Availability and dose response of phytophenols from a wheat bran-rich cereal product in healthy human volunteers
Molecular Nutrition & Food Research, vol. 61, no. 3, pp. 1-15Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Nutritional and Phytochemical Content of High-Protein Crops
Journal of Agricultural and Food Chemistry, vol. 64, no. 41, pp. 7800-7811Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
Phytochemical profile of commercially available food plant powders: their potential role in healthier food reformulations
Food Chemistry, vol. 179, pp. 159-169Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Erratum to Role of pathogen-derived cell wall carbohydrates and prostaglandin E2 in immune response and suppression of fish immunity by the oomycete Saprolegnia parasitica
Infection and Immunity, vol. 83, no. 1, pp. 454Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Nutritional B vitamin deficiency alters the expression of key proteins associated with vascular smooth muscle cell proliferation and migration in the aorta of atherosclerotic apolipoprotein E null mice
Genes & Nutrition, vol. 10, no. 1, 446Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Role of Pathogen-Derived Cell Wall Carbohydrates and Prostaglandin E2 in Immune Response and Suppression of Fish Immunity by the Oomycete Saprolegnia parasitica
Infection and Immunity, vol. 82, no. 11, pp. 4518-4529Contributions to Journals: Articles- [ONLINE] DOI:
Annual variation of dietary deoxynivalenol exposure during years of different Fusarium prevalence: a pilot biomonitoring study
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, vol. 31, no. 9, pp. 1579-1585Contributions to Journals: Articles- [ONLINE] DOI:
Bound phytophenols from ready-to-eat cereals: comparison with other plant-based foods
Food Chemistry, vol. 141, no. 3, pp. 2880-2886Contributions to Journals: Articles- [ONLINE] DOI:
Microbial metabolism and intestinal absorption of the mycotoxin deoxynivalenol and its metabolites in humans
Annals of Nutrition & Metabolism, vol. 63, no. Suppl 1, pp. 1806Contributions to Journals: AbstractsA methyl-deficient diet fed to rats during the pre- and peri-conception periods of development modifies the hepatic proteome in the adult offspring
Genes & Nutrition, vol. 8, no. 2, pp. 181-190Contributions to Journals: Articles- [ONLINE] DOI:
Human fecal microbiota metabolize deoxynivalenol and deoxynivalenol-3-glucoside and may be responsible for urinary de-epoxy deoxynivalenol
Applied and Environmental Microbiology, vol. 79, no. 6, pp. 1821-1825Contributions to Journals: Articles- [ONLINE] DOI:
Major phenylpropanoid-derived metabolites in the human gut can arise from microbial fermentation of protein
Molecular Nutrition & Food Research, vol. 57, no. 3, pp. 523-535Contributions to Journals: Articles- [ONLINE] DOI:
Inter-organ proteomic analysis reveals insights into the molecular mechanisms underlying the anti-diabetic effects of cis-9, trans-11-conjugated linoleic acid in ob/ob mice
Proteomics, vol. 12, no. 3, pp. 461-476Contributions to Journals: Articles- [ONLINE] DOI:
Anti-platelet effects of olive oil extract: in vitro functional and proteomic studies
European Journal of Nutrition, vol. 50, no. 7, pp. 553-562Contributions to Journals: Articles- [ONLINE] DOI:
High-protein, reduced-carbohydrate weight-loss diets promote metabolite profiles likely to be detrimental to colonic health
The American Journal of Clinical Nutrition, vol. 93, no. 5, pp. 1062-1072Contributions to Journals: Articles- [ONLINE] DOI:
Impact of Obesity and Leptin on Protein Expression Profiles in Mouse Colon
Digestive Diseases and Sciences, vol. 56, no. 4, pp. 1028-1036Contributions to Journals: Articles- [ONLINE] DOI:
Blood folate status and expression of proteins involved in immune function, inflammation, and coagulation: biochemical and proteomic changes in the plasma of humans in response to long-term synthetic folic acid supplementation
Journal of Proteome Research, vol. 9, no. 4, pp. 1941-1950Contributions to Journals: Articles- [ONLINE] DOI:
Intervention with fish oil, but not with docosahexaenoic acid, results in lower levels of hepatic soluble epoxide hydrolase with time in apoE knockout mice
British Journal of Nutrition, vol. 103, no. 1, pp. 16-24Contributions to Journals: Articles- [ONLINE] DOI:
Maternal diets deficient in folic acid and related methyl donors modify mechanisms associated with lipid metabolism in the fetal liver of the rat
British Journal of Nutrition, vol. 102, no. 10, pp. 1445-1452Contributions to Journals: Articles- [ONLINE] DOI:
Balancing Inflammatory, Lipid, and Xenobiotic Signaling Pathways by VSL#3, a Biotherapeutic Agent, in the Treatment of Inflammatory Bowel Disease
Inflammatory Bowel Diseases, vol. 15, no. 11, pp. 1721-1736Contributions to Journals: Articles- [ONLINE] DOI: