Exopolysaccharides from milk fermented by lactic acid bacteria enhance dietary carotenoid bioavailability in humans in a randomized crossover trial and in rats

Autor: Tatsuya Sugawara, Tomoyuki Fukasawa, Satomi Ichikawa, Masami Kitade, Yuki Manabe, Yukio Asami, Masashi Morifuji
Rok vydání: 2020
Předmět:
Zdroj: The American Journal of Clinical Nutrition. 111:903-914
ISSN: 0002-9165
DOI: 10.1093/ajcn/nqaa020
Popis: BACKGROUND Dietary supplementation with carotenoids can have beneficial health effects, but carotenoids are poorly absorbed. OBJECTIVES We aimed to evaluate how milk fermented by lactic acid bacteria affects dietary carotenoid bioavailability in humans and rats and to investigate mechanisms by which active components in milk fermented by Lactobacilli enhance dietary carotenoid absorption. METHODS Male rats (n = 8/group) were administered β-carotene or β-carotene + fermented milk. Rats (n = 6/group) were also pretreated with ezetimibe, a cholesterol absorption inhibitor, to investigate β-carotene transport mechanisms. In humans, 3 studies were conducted using a randomized crossover method. Subjects (n = 16/study) consumed a vegetable (carrot, tomato, or spinach) drink alone or with a fermented milk drink. Blood samples were collected at various time points after consumption. RESULTS In rats, the serum β-carotene area under the concentration-time curve (AUC) was significantly higher for the β-carotene + fermented milk than for β-carotene only. A significant correlation (r = 0.83, P
Databáze: OpenAIRE