Journal
FOOD CHEMISTRY
Volume 343, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.128445
Keywords
Pueraria thomsonii; Kudzu starch; Root tuber; Mineral element; Selenium
Funding
- Lici Kudzu Characteristic Industrial Base Project of National New Rural Development Institute of Hunan Agricultural University [2018xny-tc007]
- Scientific Research Fund of Hunan Provincial Education Department [18K042]
- Open Project of Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization [18KFXM06]
- Science and Technology Major Project of Guangxi [AA17202026, AB16380087]
- Innovation and Entrepreneurship Training Program for College Students in Hunan Province
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The study found that the starch kudzu cultivar has high yield of root tuber and starch content, as well as rich accumulation of beneficial mineral elements, particularly selenium and strontium, making it a potential food resource rich in these two elements.
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(2)), 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.
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