Limited appearance of apocarotenoids is observed in plasma after consumption of tomato juices: a randomized human clinical trial

Autor: David M. Francis, Morgan J. Cichon, Earl H. Harrison, Steven J. Schwartz, Jessica L. Cooperstone, Ken M. Riedl, Robert W. Curley, Janet A. Novotny
Rok vydání: 2018
Předmět:
Zdroj: The American Journal of Clinical Nutrition. 108:784-792
ISSN: 0002-9165
Popis: BACKGROUND: Nonvitamin A apocarotenoids occur in foods. Some function as retinoic acid receptor antagonists in vitro, though it is unclear if apocarotenoids are absorbed or accumulate to levels needed to elicit biological function. OBJECTIVE: The aim of this study was to quantify carotenoids and apocarotenoids (β-apo-8′-, -10′-, -12′-, and -14′-carotenal, apo-6′-, -8′-, -10′-, -12′-, and -14′-lycopenal, retinal, acycloretinal, β-apo-13-carotenone, and apo-13-lycopenone) in human plasma after controlled consumption of carotenoid-rich tomato juices. DESIGN: Healthy subjects (n = 35) consumed a low-carotenoid diet for 2 wk, then consumed 360 mL of high-β-carotene tomato juice (30.4 mg of β-carotene, 34.5 μg total β-apocarotenoids/d), high-lycopene tomato juice (42.5 mg of lycopene, 119.2 μg total apolycopenoids/d), or a carotenoid-free control (cucumber juice) per day for 4 wk. Plasma was sampled at baseline (after washout) and after 2 and 4 wk, and analyzed for carotenoids and apocarotenoids using high-pressure liquid chromatography (HPLC) and HPLC-tandem mass spectrometry, respectively. The methods used to analyze the apocarotenoids had limits of detection of ∼ 100 pmol/L. RESULTS: Apocarotenoids are present in tomato juices at 0.1–0.5% of the parent carotenoids. Plasma lycopene and β-carotene increased (P
Databáze: OpenAIRE