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Evaluation of the protein quality of Porphyridium cruentum

Safi, Carl and Charton, Michael and Pignolet, Olivier and Pontalier, Pierre-Yves and Vaca-Garcia, Carlos Evaluation of the protein quality of Porphyridium cruentum. (2013) Journal of Applied Psychology, 25 (2). 497-501. ISSN 0921-8971

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Official URL: https://doi.org/10.1007/s10811-012-9883-4


The amino acid profile of the red microalga Porphyridium cruentum and its protein extract have been determined in order to assess the nutritional quality of this biomass for human consumption. Total protein determined by elemental analysis represented 56 % of its dry weight. Hydro-soluble proteins extracted at pH 12 and 40 °C were analysed by the Lowry method giving 47 %, which represented 84 % of total protein per dry weight. The amino acid sequence of the biomass and the protein extract was composed of a set of essential (39 % for the former and 37 % for the latter) and non-essential amino acids (61 % for the former and 63 % for the latter) that compares favourably with the standard protein/amino acid requirements proposed by Food and Agricultural Organisation and World Health Organisation.

Item Type:Article
HAL Id:hal-02064788
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Laboratory name:
Deposited On:12 Mar 2019 09:59

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