Format

Send to

Choose Destination
Int J Food Sci Nutr. 2015 Aug;67(5):507-13. doi: 10.1080/09637486.2016.1181158. Epub 2016 May 5.

Bioaccessibility of carotenoids from Chlorella vulgaris and Chlamydomonas reinhardtii.

Author information

1
a Department of Physiology and Biochemistry of Nutrition , Max Rubner-Institute, Federal Research Institute of Nutrition and Food , Karlsruhe , Germany ;
2
b Institute of Process Engineering in Life Sciences, Section III Bioprocess Engineering, Karlsruher Institute of Technology (KIT) , Karlsruhe , Germany.

Abstract

Microalgae can contribute to a balanced diet because of their composition. Beside numerous essential nutrients, carotenoids are in the focus for food applications. The bioavailability of carotenoids from photoautotrophic-cultivated Chlorella vulgaris (C. vulgaris) and Chlamydomonas reinhardtii (C. reinhardtii) was compared. An in vitro digestion model was used to investigate carotenoid bioaccessibility. Furthermore, the effect of sonication on bioaccessibility was assessed. Lutein was the main carotenoid in both species. C. reinhardtii showed higher amounts of lutein and β-carotene than C. vulgaris. In contrast to C. reinhardtii, no β-carotene and only 7% of lutein were bioaccessible in nonsonicated C. vulgaris. Sonication increased the bioaccessibility of carotenoids from C. vulgaris to a level comparable with C. reinhardtii (β-carotene: ≥ 10%; lutein: ≥ 15%). Thus, C. reinhardtii represents a good carotenoid source for potential use in foods without processing, while the application of processing methods, like sonication, is necessary for C. vulgaris.

KEYWORDS:

in vitro digestion; lutein; microalgae; sonication; β-carotene

PMID:
27146695
DOI:
10.1080/09637486.2016.1181158
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Taylor & Francis
Loading ...
Support Center