Utilisation of Chlorella vulgaris cell biomass for the production of enzymatic protein hydrolysates

  • Morris H
  • Almarales A
  • Carrillo O
 et al. 
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Abstract

Studies on enzymatic hydrolysis of cell proteins in green microalgae Chlorella vulgaris 87/1 are described. Different proteases can be used for production of hydrolysates from ethanol extracted algae. The influence of reaction parameters on hydrolysis of extracted biomass with pancreatin was considered, and the composition of hydrolysates (Cv-PH) was investigated in relation to the starting materials. Significant changes in the degree of hydrolysis were observed only during the first 2 h and it remained constant throughout the process. An enzyme-substrate ratio of 30-45 units/g algae, an algae concentration of 10-15% and pH values of 7.5-8.0 could be recommended. Differences in the chromatographic patterns of Cv-PH and a hot-extract from Chlorella biomass were observed. Adequate amounts of essential amino acids (44.7%) in relation to the reference pattern of FAO for human nutrition were found, except for sulfur amino acids. Cv-PH could be considered as a potential ingredient in the food industry. © 2008 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Chlorella
  • Enzymatic hydrolysis
  • Food industry
  • Green microalgae
  • Protein hydrolysate

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Authors

  • Humberto J. Morris

  • Angel Almarales

  • Olimpia Carrillo

  • Rosa C. Bermúdez

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