Micronutrient composition and microbial community analysis across diverse landraces of the Ethiopian orphan crop enset.
Micronutrient composition and microbial community analysis across diverse landraces of the Ethiopian orphan crop enset.
复制标题
埃塞俄比亚孤生作物不同地方品种的微量营养素组成和微生物群落分析。
DOI：
10.1016/j.foodres.2020.109636
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Tamrat S
中科院分区：
文献类型：
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作者：
Tamrat S
Enset(Ensete Ventricosum)是2000万人的主要淀粉主食和粮食安全作物。尽管其在形态、遗传学、农学和利用方面存在很大的多样性，但只有相对较少的地方品种报告了营养特性。在这里，我们调查了来自三个Enset种植区的22个地方品种的营养成分。我们介绍了Enset球茎组织的矿物质特征，生的和加工的(发酵的)组织的游离氨基酸特征，以及与发酵相关的微生物群落的基因组分析。我们发现，与地区性重要的块茎和谷物相比，Enset的钙、铁、钾和锌含量高，钠含量低。我们报告了加工过程中游离氨基酸组成的变化，并确定在发酵过程中以醋酸杆菌、乳杆菌和双歧杆菌为主。营养和微生物变化提供了选择改善成分、质量和安全的机会，可能对食品安全和公共卫生产生重大影响。
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 generaAcetobacter,LactobacillusandBifidobacterium, 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.