Oolong Tea Project Dataset for "Postprandial metabolic responses to high-fat feeding in healthy adults following ingestion of oolong tea-derived polymerized polyphenols: a randomized, double-blinded, placebo-controlled crossover study"

This dataset contains data for 50 participants who completed the 4-arm Oolong Tea Project study. Data are participant sex, age, height, and weight, along with 3-hour meal tolerance test response data. These data are serum triacylglycerol, and plasma triacylglycerol, insulin, C-peptide, non-esterified fatty acids (NEFA), glycerol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, glucose, and apolipoproteins AI, AII, B, CII, CIII, and E. Timepoints were 0 mins (pre-ingestion of treatment), and 30, 60, 90, 120, and 180 minutes. Treatments were 100mg polymerized polyphenols from oolong tea, 150mg polymerized polyphenols from oolong tea, and 100mg polymerized polyphenols from oolong tea plus 50 mg caffeine and 63 mg catechins, versus a placebo with no active ingredients.

Keywords:
Polymerized polyphenols, oolong tea, lipidaemia
Subjects:
Biomolecules and biochemistry
Food science and nutrition

Cite this dataset as:
Perkin, O., Betts, J., Gonzalez, J., 2023. Oolong Tea Project Dataset for "Postprandial metabolic responses to high-fat feeding in healthy adults following ingestion of oolong tea-derived polymerized polyphenols: a randomized, double-blinded, placebo-controlled crossover study". Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-01273.

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Access on request: Dataset will be made available on request to bona fide researchers.

Creators

Oly Perkin
University of Bath

James Betts
University of Bath

Contributors

University of Bath
Rights Holder

Coverage

Collection date(s):

From 16 October 2017 to 21 March 2018

Geographical coverage:

UK, England, Bath

Documentation

Data collection method:

10 mL blood samples collected from a canula inserted into the antecubital vein were drawn into a syringe, and immediately dispensed into untreated serum tubes with silicate clotting activator, and tripotassium ethylenediaminetetraacetic acid (K3 EDTA) treated tubes (both Sarstedt, Nümbrecht, Germany) for serum and plasma separation respectively. Before centrifugation, blood samples for serum separation were allowed to clot at room temperature for 20 minutes. Samples were centrifuged at 1300 g for 15 minutes at 4°C, then supernatant was immediately aliquoted, frozen on dry ice, and stored at -80°C for later analysis. Serum TG, and plasma TG, NEFA, glycerol, glucose, HDL-c, LDL-c, and ApoA-I, A-II, B, C-II, C-III, and E, were measured with commercially available spectrophotometric assays (Daytona Rx, Randox, Crumlin, UK) as per the manufacturer’s instructions. Commercially available enzyme linked immunosorbent assay (ELISA) was used to determine concentrations of plasma insulin (Mercodia, Uppsala, Sweden) and C-peptide (MilliporeSigma, Massachusetts, USA).

Funders

Lucozade Ribena Suntory

Industrial Grant (LucozadeRibenaSuntory)- Effect of Oolong Tea Extract on Blood Lipid Response to Dietary Fat
17-01145

Publication details

Publication date: 18 April 2023
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-01273

URL for this record: https://researchdata.bath.ac.uk/id/eprint/1273

Related papers and books

Perkin, O. J., Chen, Y.-C., Johnson, D. A., Thomas, J. E., Atkinson, G., Betts, J. A., and Gonzalez, J. T., 2023. Postprandial Metabolic Responses to High-fat Feeding in Healthy Adults Following Ingestion of Oolong Tea–Derived Polymerized Polyphenols: A Randomized, Double-blinded, Placebo-controlled Crossover Study. The American Journal of Clinical Nutrition, 118(1), 132-140. Available from: https://doi.org/10.1016/j.ajcnut.2023.04.020.

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Oly Perkin

Departments:

Faculty of Humanities & Social Sciences
Health

Research Centres & Institutes
Centre for Nutrition, Exercise and Metabolism (CNEM)