Effects of a High Fat Meal Matrix and Protein Complexation on the Bioaccessibility of Blueberry Anthocyanins Using the TNO Gastrointestinal Model (TIM-1)
Overview
Nutritional Sciences
Authors
Affiliations
The TNO intestinal model (TIM-1) of the human upper gastrointestinal tract was used to compare intestinal absorption/bioaccessibility of blueberry anthocyanins under different digestive conditions. Blueberry polyphenol-rich extract was delivered to TIM-1 in the absence or presence of a high-fat meal. HPLC analysis of seventeen anthocyanins showed that delphinidin-3-glucoside, delphinidin-3-galactoside, delphinidin-3-arabinoside and petunidin-3-arabinoside were twice as bioaccessible in fed state, whilst delphinidin-3-(6″-acetoyl)-glucoside and malvidin-3-arabinoside were twice as bioaccessible under fasted conditions, suggesting lipid-rich matrices selectively effect anthocyanin bioaccessibility. TIM-1 was fed blueberry juice (BBJ) or blueberry polyphenol-enriched defatted soybean flour (BB-DSF) containing equivalent amounts of free or DSF-sorbed anthocyanins, respectively. Anthocyanin bioaccessibility from BB-DSF (36.0±10.4) was numerically, but not significantly, greater than that from BBJ (26.3±10.3). Ileal efflux samples collected after digestion of BB-DSF contained 2.8-fold more anthocyanins than same from BBJ, suggesting that protein-rich DSF protects anthocyanins during transit through upper digestive tract for subsequent colonic delivery/metabolism.
Calvigioni M, Mazzantini D, Celandroni F, Vozzi G, Ghelardi E Microb Biotechnol. 2024; 17(10):e70036.
PMID: 39435730 PMC: 11494453. DOI: 10.1111/1751-7915.70036.
Experimental Protocols Used to Mimic Gastrointestinal Protein Digestion: A Systematic Review.
Luz A, de Medeiros A, de Medeiros G, Piuvezam G, Passos T, de Araujo Morais A Nutrients. 2024; 16(15).
PMID: 39125281 PMC: 11314321. DOI: 10.3390/nu16152398.
Xue H, Zha M, Tang Y, Zhao J, Du X, Wang Y Molecules. 2024; 29(12).
PMID: 38930881 PMC: 11206947. DOI: 10.3390/molecules29122815.
Bioavailability of Anthocyanins: Whole Foods versus Extracts.
Kumkum R, Aston-Mourney K, Mcneill B, Hernandez D, Rivera L Nutrients. 2024; 16(10).
PMID: 38794640 PMC: 11123854. DOI: 10.3390/nu16101403.
Wang Y, Zhu S, Zhang T, Gao M, Zhan X Foods. 2024; 13(5).
PMID: 38472826 PMC: 10931329. DOI: 10.3390/foods13050713.