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Proteomics01:33

Proteomics

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Analysis of Fatty Acid Content and Composition in Microalgae
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Proteins from Microalgae: Nutritional, Functional and Bioactive Properties.

Juan Pablo García-Encinas1, Saul Ruiz-Cruz1, Jousé Juárez2

  • 1Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Boulevard Luis Encinas y Rosales, Hermosillo 83000, Sonora, Mexico.

Foods (Basel, Switzerland)
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PubMed
Summary
This summary is machine-generated.

Microalgae offer a sustainable protein source with high yields and nutritional benefits. Optimized extraction methods unlock their potential in food and pharmaceuticals, overcoming commercialization hurdles.

Keywords:
digestibilityextractionfunctional propertiesmicroalgaenutritional propertiesproteins

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Area of Science:

  • * Food Science and Technology
  • * Sustainable Agriculture
  • * Biotechnology

Background:

  • * Microalgae are a sustainable protein alternative, with species like Arthrospira platensis and Chlorella vulgaris containing 50-70% protein.
  • * Cultivation avoids arable land competition, supporting global sustainability.
  • * Rigid cell walls pose extraction challenges, requiring advanced techniques.

Purpose of the Study:

  • * To review microalgae as a sustainable protein source.
  • * To explore protein extraction methods and their efficiency.
  • * To analyze nutritional and functional properties, including bioactive peptide activities.
  • * To identify challenges and opportunities for commercialization.

Main Methods:

  • * Literature review of microalgal protein research.
  • * Analysis of protein content, amino acid profiles, and digestibility.
  • * Evaluation of extraction techniques (bead milling, ultrasonication, enzymatic, PEF).
  • * Assessment of functional properties (emulsifying, water-holding, gelling).
  • * Review of bioactive peptide activities (antioxidant, antimicrobial, anti-inflammatory, antiviral).

Main Results:

  • * High protein content (50-70%) and essential amino acids in microalgae.
  • * Extraction yields up to 96% achieved with optimized methods.
  • * Digestibility ranges from 70-90%, with Spirulina platensis showing high rates.
  • * Microalgal proteins possess valuable functional properties for food applications.
  • * Bioactive peptides exhibit significant antioxidant, antimicrobial, anti-inflammatory, and antiviral effects.
  • * Commercialization faces regulatory, cost, and consumer acceptance barriers.

Conclusions:

  • * Microalgae are a versatile source of nutrition and bioactive compounds.
  • * Optimized extraction and scalable technologies are key for market adoption.
  • * Microalgae hold significant potential for sustainable food and pharmaceutical innovation.