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Protein Quality Of Amaranth Grains Cultivated In Ethiopia: Impact Of Popping And Fermentation.pdf

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Preview of Protein Quality of Amaranth Grains Cultivated in Ethiopia: Impact of Popping and Fermentation
🔗 Source: horizon.documentation.ird.fr
📊 Size: 663 KB
👤 Author: Amare, E.; Mouquet Rivier, Claire; Servent, A.; Morel, G.; Adish, A.; Guledat Desse, H.
⬇️ Downloads: 133

Summary

This study investigates the effect of popping and fermentation on the protein quality of three varieties of amaranth grains cultivated in Ethiopia. Key findings include:

- Protein Content and Amino Acid Composition: Amaranth grains have higher total lysine content than common cereals but comparable to legumes, with higher methionine and cysteine levels compared to cereal and legume proteins. Essential amino acids (excluding tryptophan) constitute 43%–49%, exceeding the WHO reference pattern (31%).

- Impact of Processing: Popping reduces total lysine and cysteine by 36% and 37%, respectively, while fermentation decreases these by 16%–20%. Fermentation increases most free amino acids (except arginine) significantly.

- Protein Digestibility: Popping decreases in vitro protein digestibility (IVPD) by 8.3%–17.1%, while fermentation increases it by 4.8%–7.5%.

- Potential for Complementary Foods: Substituting amaranth for wheat or maize in complementary food formulations could meet daily indispensable amino acid requirements for young children, given its high protein content and digestibility after appropriate processing.

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Description

The study analyzes changes in amino acid composition and digestibility to determine optimal processing methods for enhancing the nutritional value of these grains.

Technical Information

  • File Format: PDF
  • File Size: 663 KB
  • Pages: 12
  • Language: EN
  • Author: Amare, E.; Mouquet Rivier, Claire; Servent, A.; Morel, G.; Adish, A.; Guledat Desse, H.
  • Total Downloads: 133
  • Last Updated: 2 weeks ago

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Protein guideProtein tutorialQuality guideQuality tutorialAmaranth guideAmaranth tutorialGrains guideGrains tutorialCultivated guideCultivated tutorialEthiopia: guideEthiopia: tutorialImpact guideImpact tutorialPopping guidePopping tutorialFermentation guideFermentation tutorial

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