Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability

Canelli, Greta; Neutsch, Lukas; Carpine, Roberta; Tevere, Sabrina; Giuffrida, Francesca; Rohfritsch, Zhen; Dionisi, Fabiola; Bolten, Christoph J.; Mathys, Alexander

doi:10.1016/j.algal.2019.101754

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-28480

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability
Authors:	Canelli, Greta Neutsch, Lukas Carpine, Roberta Tevere, Sabrina Giuffrida, Francesca Rohfritsch, Zhen Dionisi, Fabiola Bolten, Christoph J. Mathys, Alexander
et. al:	No
DOI:	10.1016/j.algal.2019.101754 10.21256/zhaw-28480
Published in:	Algal Research
Volume(Issue):	45
Page(s):	101754
Issue Date:	17-Dec-2019
Publisher / Ed. Institution:	Elsevier
ISSN:	2211-9264
Language:	English
Subjects:	PUFAs; Bioaccessibility; Oxidation; Chlorella vulgaris; Heterotrophic cultivation
Subject (DDC):	579: Microbiology
Abstract:	Microalgal biomass is an emerging source of several health-related compounds, including polyunsaturated fatty acids. Herein, Chlorella vulgaris was cultivated heterotrophically in a 16-L stirred tank bioreactor. The lipid oxidative stability and lipid bioaccessibility of the biomass harvested during the exponential and stationary phases were evaluated. The biomass harvested during the stationary phase showed lower lipid oxidation than that harvested during the exponential phase, likely due to the higher content of antioxidants in the former. In both biomasses, the hexanal and propanal profiles showed only moderate increase over 12 weeks of storage at 40 °C, indicating good oxidative stability. Lipid bioaccessibility measured in an infant in vitro model was 0.66% ± 0.16% and 2.41% ± 0.61% for the biomass harvested during the exponential and late stationary phases, respectively. This study indicates that C. vulgaris biomass can be considered as a stable and nutritious (optimal ω3:ω6 profile) source of essential fatty acids. Our results suggested that regarding lipid stability and bioaccessibility, harvesting during stationary phase could be preferred choice. In general, treatment of the biomass to increase lipid bioaccessibility should be investigated.
URI:	https://digitalcollection.zhaw.ch/handle/11475/28480
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Chemistry and Biotechnology (ICBT)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Canelli, G., Neutsch, L., Carpine, R., Tevere, S., Giuffrida, F., Rohfritsch, Z., Dionisi, F., Bolten, C. J., & Mathys, A. (2019). Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability. Algal Research, 45, 101754. https://doi.org/10.1016/j.algal.2019.101754

Canelli, G. et al. (2019) ‘Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability’, Algal Research, 45, p. 101754. Available at: https://doi.org/10.1016/j.algal.2019.101754.

G. Canelli et al., “Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability,” Algal Research, vol. 45, p. 101754, Dec. 2019, doi: 10.1016/j.algal.2019.101754.

CANELLI, Greta, Lukas NEUTSCH, Roberta CARPINE, Sabrina TEVERE, Francesca GIUFFRIDA, Zhen ROHFRITSCH, Fabiola DIONISI, Christoph J. BOLTEN und Alexander MATHYS, 2019. Chlorella vulgaris in a heterotrophic bioprocess : study of the lipid bioaccessibility and oxidative stability. Algal Research. 17 Dezember 2019. Bd. 45, S. 101754. DOI 10.1016/j.algal.2019.101754

Canelli, Greta, Lukas Neutsch, Roberta Carpine, Sabrina Tevere, Francesca Giuffrida, Zhen Rohfritsch, Fabiola Dionisi, Christoph J. Bolten, and Alexander Mathys. 2019. “Chlorella Vulgaris in a Heterotrophic Bioprocess : Study of the Lipid Bioaccessibility and Oxidative Stability.” Algal Research 45 (December): 101754. https://doi.org/10.1016/j.algal.2019.101754.

Canelli, Greta, et al. “Chlorella Vulgaris in a Heterotrophic Bioprocess : Study of the Lipid Bioaccessibility and Oxidative Stability.” Algal Research, vol. 45, Dec. 2019, p. 101754, https://doi.org/10.1016/j.algal.2019.101754.