4.7 Article

Micronutrient composition and microbial community analysis across diverse landraces of the Ethiopian orphan crop enset

期刊

FOOD RESEARCH INTERNATIONAL
卷 137, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.foodres.2020.109636

关键词

Ensete ventricosum; Ethiopia; Fermentation; Free amino acids; Food security; Kocho; Micronutrients

资金

  1. GCRF Foundation Awards for Global Agricultural and Food Systems Research [BB/P02307X/1]
  2. EPSRC [EP/T024925/1] Funding Source: UKRI

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Enset (Ensete ventricosum) is a major starch staple and food security crop for 20 million people. Despite substantial diversity in morphology, genetics, agronomy and utilization across its range, nutritional characteristics have only been reported in relatively few landraces. Here, we survey nutritional composition in 22 landraces from three enset growing regions. We present mineral characterization of enset corm tissue, free amino acid characterization of raw and processed (fermented) tissues and genomic analysis of the microbial community associated with fermentation. We show that compared to regionally important tubers and cereals, enset is high in calcium, iron, potassium and zinc and low in sodium. We report changes in free amino acid composition due to processing, and establish that the bacteria genera Acetobacter, Lactobacillus and Bifidobacterium, predominate during fermentation. Nutritional and microbial variation presents opportunities to select for improved composition, quality and safety with potentially significant impacts in food security and public health.

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