肯尼亚埃姆布塔罗(Colocasia esculenta)的近似分析和矿物质特征

Q3 Agricultural and Biological Sciences Tropical and Subtropical Agroecosystems Pub Date : 2024-04-12 DOI:10.56369/tsaes.5379
A. Karuma, Joyce Wambui Njuguna, Patrick Gicheru, Fabian Kaburu
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引用次数: 0

摘要

背景。芋头(Colocasia esculenta)是肯尼亚未充分利用的作物之一,可在多种环境和气候条件下种植。由于芋头的叶子和茎秆可食用,因此具有极高的食用价值和多种烹饪用途。然而,由于缺乏有关生产的科学信息,人们对肯尼亚芋头的矿物质营养成分仍然知之甚少。目标:确定芋头的近似组成和矿物质营养成分。确定肯尼亚恩布地区不同浇水制度和种植密度下芋头的近似成分和矿物质概况。方法。在 2021 年长雨期(LR)和 2021/2022 年短雨期(SR)期间,在肯尼亚农业和畜牧业研究组织(KALRO)恩布研究中心进行了一项研究。该研究采用了完全随机区组设计的分块布局因子试验。浇水制度(基于田间能力(FC)的 100%、60% 和 30%)为主要因素,种植密度为次要因素,三次重复。种植密度为 0.5 米 × 0.5 米(40,000 株/公顷)、1 米 × 0.5 米(20,000 株/公顷)和 1 米 × 1 米(10,000 株/公顷),分别代表高、中、低种植密度。进行了近似分析和矿物质含量测定。结果芋头中蛋白质、纤维、钾、钙、钠和锌的含量在不同季节有显著差异(P < 0.05)。本研究中观察到的高碳水化合物含量(35 - 39 %)表明,芋头块茎是营养能量的良好来源。钾(> 5000 毫克/千克-1)和镁(> 1000 毫克/千克-1)是芋头茎叶中含量最高的矿物质元素,铜(< 25 毫克/千克-1)含量最低。影响。食用芋头等营养丰富的食物有助于人体利用必要的营养物质来消除营养不良,促进农村社区的粮食安全。结论。芋头叶是钾、镁、钙、锰、铁、铜和锌的良好来源;芋头茎的脂肪和蛋白质含量低、热能高、碳水化合物含量高,因此可作为叶菜推荐食用。芋头是热带许多地区的主要能量来源之一,肯尼亚的亚湿润地区可以推荐生产芋头。
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PROXIMATE ANALYSIS AND MINERAL PROFILE OF TARO (Colocasia esculenta) IN EMBU, KENYA
Background. Taro (Colocasia esculenta) is one of the underutilized crops in Kenya, grown under a wide range of environmental and edaphic conditions. This crop has exceptional dietary value and numerous culinary applications due to its edible leaves and corms. However, the mineral nutrient composition of taro in Kenya is still not well known due to a lack of scientific information concerning production. Objective. To determine the proximate composition and mineral profile of taro under different watering regimes and planting densities in Embu, Kenya. Methodology. A study was conducted at the Kenya Agricultural and Livestock Research Organization (KALRO) – Embu Research Centre, during the long rains (LR) 2021, and short rains (SR) 2021/2022. A factorial experiment with a split-plot layout arranged in a completely randomized block design was adopted. The watering regimes (100 %, 60 %, and 30 % based on the field capacity (FC)) were the main factor while the sub-factor was the planting density, with three replications. The planting densities used were 0.5 m × 0.5 m (40,000 plants ha-1), 1 m × 0.5 m (20,000 plants ha-1), and 1 m × 1 m (10,000 plants ha-1), representative of high, medium, and low planting densities respectively. Proximate analysis and mineral content were determined. Results. Significant differences (P < 0.05) in seasons were noted for protein, fibre, potassium, calcium, sodium, and zinc in the taro corms. The high carbohydrate content observed in this study (35 – 39 %) indicates that taro tubers are a good source of nutritional energy. Potassium (> 5000 mg kg -1) and magnesium (> 1000 mg kg -1) were the most prevalent mineral elements in taro corms and leaves, with copper (< 25 mg kg -1) being the least prevalent. Implications. Consumption of nutrient-rich foods such as taro helps the body to utilize the necessary nutrients to combat malnutrition and promote food security in rural communities. Conclusion. Taro leaves can be recommended as leafy vegetables as they are good sources of potassium, magnesium, calcium, manganese, iron, copper, and zinc; and the corms have low fat and protein content, high calorific energy, and high carbohydrate content. Taro represents one of the main sources of energy in many parts of the tropics and its production can be recommended in sub-humid areas in Kenya.
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来源期刊
Tropical and Subtropical Agroecosystems
Tropical and Subtropical Agroecosystems Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)
CiteScore
1.00
自引率
0.00%
发文量
49
审稿时长
24 weeks
期刊介绍: The journal is an international peer-reviewed publication devoted to disseminate original information contributing to the understanding and development of agroecosystems in tropical and subtropical areas. The Journal recognizes the multidisciplinary nature of its scope and encourages the submission of original manuscripts from all of the disciplines involved in this area. Original contributions are welcomed in relation to the study of particular components of the agroecosystems (i.e. plant, animal, soil) as well as the resulting interactions and their relationship/impact on society and environment. The journal does not received manuscripts based solely on economic acpects o food technology.
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