Chen Lintao, Chen Rui, Atwa Elsayed M, Mabrouk Mahmoud, Jiang Huanyu, Mou Xiangwei, Ma Xu
Department of Mechanical Engineering, Guangxi Normal University, Guilin 541004, China.
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
Foods. 2024 Jun 13;13(12):1861. doi: 10.3390/foods13121861.
Cassava is a staple crop in developing countries because its starchy roots provide essential dietary carbohydrates. The aim of this research was to conduct a comprehensive inquiry and scientific evaluation of the nutritional value of cassava tubers. Eight nutritional characteristics were examined in native and imported cassava variants: starch, reduced sugar, anthocyanins, protein, dietary fiber, quinic acid, vitamin C, and dry matter content. Principal component analysis (PCA) was conducted to minimize the dimensionality of the nutritional markers. A scientific assessment technique was developed to calculate a composite score for the various cassava samples. Analysis of the data revealed noticeable variance among the samples' nutritional indicators, suggesting varying degrees of association. Starch had a substantial positive link with lower sugar, protein, and dry matter content ( < 0.01). Anthocyanins and quinic acid interacted favorably ( < 0.05), and a positive link between protein and dry matter content was observed ( < 0.05); however, protein and dietary fiber interacted negatively ( < 0.05). The contribution rate of the top three PCA factors was over 76%, demonstrating that these factors incorporated the primary information acquired from the eight original nutritional indices, while maintaining excellent representativeness and impartiality. The experimental results showed a preliminary nutritional grade for 22 cassava tuber samples. The top five types were Guangxi Muci, Gui Cassava 4, Glutinous Rice Cassava, Huifeng 60, and Dongguan Hongwei. In the cluster analysis, the levels of similarity between the data showed that the 22 types of cassava tubers could be grouped into five categories, each with their own set of nutrients. This study promotes the directed breeding of cassava species and offers a theoretical foundation for creating and using various cassava varieties. Furthermore, this work lays the groundwork for a systematic and dependable technique for the quality assessment, comprehensive evaluation, and reasonable classification of cassava species and similar crops.
木薯是发展中国家的主要作物，因为其富含淀粉的块根能提供必需的膳食碳水化合物。本研究旨在对木薯块茎的营养价值进行全面探究和科学评估。对本地和进口木薯品种的八个营养特性进行了检测：淀粉、还原糖、花青素、蛋白质、膳食纤维、奎尼酸、维生素C和干物质含量。进行主成分分析（PCA）以降低营养指标的维度。开发了一种科学评估技术来计算各种木薯样品的综合得分。数据分析显示，样品的营养指标之间存在显著差异，表明存在不同程度的关联。淀粉与较低的糖、蛋白质和干物质含量呈显著正相关（<0.01）。花青素和奎尼酸相互作用良好（<0.05），观察到蛋白质和干物质含量呈正相关（<0.05）；然而，蛋白质和膳食纤维相互作用呈负相关（<0.05）。前三个主成分分析因子的贡献率超过76%，表明这些因子包含了从八个原始营养指标中获取的主要信息，同时保持了良好的代表性和公正性。实验结果给出了22个木薯块茎样品的初步营养等级。排名前五的品种是广西木薯、桂木薯4号、糯米木薯、惠丰60和东莞红尾。在聚类分析中，数据之间的相似性水平表明，22种木薯块茎可分为五类，每类都有自己的营养成分。本研究促进了木薯品种的定向育种，并为创建和利用各种木薯品种提供了理论基础。此外，这项工作为木薯品种及类似作物的质量评估、综合评价和合理分类奠定了系统可靠技术的基础。
