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Seaweed Proteins and Amino Acids as Nutraceuticals-Chapter 24

Authors
Publisher
Elsevier Science & Technology
Publication Date
Identifiers
DOI: 10.1016/b978-0-12-387669-0.00024-7
Keywords
  • Seaweed
  • Protein
  • Amino Acid
  • Nutritional Value
  • Digestion
  • Malnutrition
Disciplines
  • Biology
  • Ecology
  • Geography
  • Medicine

Abstract

Abstract Seaweeds demonstrate original and interesting nutritional characteristics. Protein concentration ranges from 5% to 47% of dry basic. Its value depends particularly on species and the environmental conditions. Seaweed protein is a source of all amino acids, especially glycine, alanine, arginine, proline, glutamic, and aspartic acids. In algae, essential amino acids (EAAs) represent almost a half of total amino acids and their protein profile is close to the profile of egg protein. In case of non-EAAs, all three groups (green, brown, and red seaweeds) contain the similar amount. Red seaweed seems to be a good source of protein because its value reaches 47%. The issue of protein malnutrition supports the trend to find a new and cheap alternative source of protein. Algae could play an important role in the above-mentioned challenge because of relatively high content of nitrogen compounds. Algae may be used in the industry as a source of ingredients with high nutritional quality.

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