粉葛块根膨大期淀粉和矿质元素的积累

Starch and mineral element accumulation during root tuber expansion period of Pueraria thomsonii Benth.

机构信息

Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha 410128, People's Republic of China.

Agricultural Resource and Environment Research Institute, Guangxi Academy of Agriculture Science, Nanning, Guangxi 530007, People's Republic of China.

出版信息

Food Chem. 2021 May 1;343:128445. doi: 10.1016/j.foodchem.2020.128445. Epub 2020 Oct 22.

DOI:10.1016/j.foodchem.2020.128445

PMID:33129614

Abstract

Pueraria is a medicine plant with rich starch, and thus can be a potential agricultural and industrial resource. In this study, we evaluated the root tuber yield of a cultivar of starch kudzu (Pueraria thomsonii) and the starch accumulation during expansion period of root tuber. Additionally, mineral elements were quantified in root tuber and starch. The results indicated that the starch kudzu cultivar owned high yield of root tuber (greater than42 tons/hm), high starch content (greater than17% FW) in root tuber, and rich accumulation of beneficial mineral elements. Interestingly, the root tuber of P. thomsonii contained a high concentration of selenium (70 mg/kg FW) and strontium (40 mg/kg FW), and thus it can be utilized as a Se and Sr rich food. Furthermore, Se and Sr can be well preserved in starch through the optimized starch extraction method.

摘要

葛根是一种富含淀粉的药用植物，因此具有成为潜在的农业和工业资源的潜力。在这项研究中，我们评估了淀粉葛根（粉葛）品种的块根产量和块根膨大期的淀粉积累情况。此外，还对块根和淀粉中的矿物质元素进行了定量分析。结果表明，该淀粉葛根品种的块根产量高（大于 42 吨/公顷），块根淀粉含量高（大于 17%FW），并且有益矿物质元素积累丰富。有趣的是，粉葛的块根含有高浓度的硒（70mg/kgFW）和锶（40mg/kgFW），因此可以作为富含硒和锶的食品。此外，通过优化的淀粉提取方法，可以将硒和锶很好地保存在淀粉中。