Protein-rich microalgal biomass compositions of optimized sensory quality
First Claim
1. A method for determining the organoleptic quality of a protein-rich microalgal biomass composition, comprising determining the content of 11 volatile organic compounds, the 11 volatile organic compounds being pentanal, hexanal, 1-octen-3-ol, 2-pentylfuran, octanal, 3,5-octadien-2-ol (or 3-octen-2-one), 3,5-octadien-2-one, nonanal, 2-nonenal, (E,E)-2,4-nonadienal and hexanoic acid, characterized in that the microalgal biomass comprises more than 50% proteins by dry weight of biomass and in that the microalgae are of the Chlorella genus.
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Abstract
The invention relates to a method for determining the organoleptic quality of a protein-rich microalgal biomass composition, comprising the determination of the content of 11 volatile organic compounds, wherein the 11 volatile organic compounds are pentanal, hexanal, 1-octen-3-ol, 2-pentylfuran, octanal, 3,5-octadien-2-ol (or 3-octen-2-one), 3,5-octadien-2-one, nonanal, 2-no-nenal, (E,E)-2,4-nonadienal and hexanoic acid.
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Citations
13 Claims
- 1. A method for determining the organoleptic quality of a protein-rich microalgal biomass composition, comprising determining the content of 11 volatile organic compounds, the 11 volatile organic compounds being pentanal, hexanal, 1-octen-3-ol, 2-pentylfuran, octanal, 3,5-octadien-2-ol (or 3-octen-2-one), 3,5-octadien-2-one, nonanal, 2-nonenal, (E,E)-2,4-nonadienal and hexanoic acid, characterized in that the microalgal biomass comprises more than 50% proteins by dry weight of biomass and in that the microalgae are of the Chlorella genus.
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8. A method for defining an analytical profile of volatile organic compounds making it possible to evaluate the organoleptic quality of the protein-rich microalgal biomass compositions, comprising:
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the construction of a first matrix associating microalgal biomass compositions, including two controls of acceptable and unacceptable organoleptic quality, with the evaluation of their organoleptic qualities by a sensory panel of at least 15 individuals, the construction of a second matrix associating with these same compositions their characterization by a volatile organic compound analysis profile, and the correlation of the first matrix with the second to produce a relationship model on the basis of which the compositions having an optimized organoleptic profile can thus be characterized by their analytical profile of volatile organic compounds; characterized in that the microalgal biomass comprises more than 50% proteins by dry weight of biomass and in that the microalgae are of the Chlorella genus. - View Dependent Claims (9)
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10. A method for determining the organoleptic quality of a protein-rich microalgal biomass composition, comprising determining the content of 4 volatile organic compounds, these 4 organic compounds being 3,5-octadien-2-ol (or 3-octen-2-one), 1-octen-3-ol, 3,5-octadien-2-one and (E,E)-2,4-nonadienal and calculating an overall flavor value from the sum of the individual flavor values of 3,5-octadien-2-ol (or 3-octen-2-one), 1-octen-3-ol, 3,5-octadien-2-one and (E,E)-2,4-nonadienal,
characterized in that the microalgal biomass comprises more than 50% proteins by dry weight of biomass and in that the microalgae are of the Chlorella genus.
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13. A method for selecting protein-rich microalgal biomass compositions having an acceptable organoleptic profile, characterized in that the organoleptic quality is determined by the method as claimed in 9, and that the composition is selected when the overall flavor value calculated by the method is between 0 and 40% relative to that of an organoleptically unacceptable reference microalgal biomass composition, characterized in that the microalgal biomass comprises more than 50% proteins by dry weight of biomass and in that the microalgae are of the Chlorella genus.
Specification