Stable strontium isotope fractionation in hydroponically grown mung and soy bean sprouts

Hye Bin Choi, Woo Jin Shin, Hou Chun Liu, Yan Hong Chen, Jia You Hsieh, Kwang Sik Lee

研究成果: Article同行評審

摘要

This study investigated whether stable strontium isotope (88Sr/86Sr) fractionation occurs during nutrient uptake by bean plants. Mung and soy beans were cultivated hydroponically using two nutrient solutions with different strontium (Sr) isotope compositions. The Sr and calcium (Ca) concentrations, 87Sr/86Sr ratios and δ88/86Sr values of the seeds, organs, initial nutrient solutions, and residual nutrient solutions were measured. The triple Sr isotope plot illustrates that bean sprout organs deviated considerably from the binary end-member mixing lines between intact bean seeds and the initial nutrient solutions, indicating fractionation of δ88/86Sr. In addition, the residual nutrient solutions had heavier δ88/86Sr values than the initial nutrient solutions, further supporting preferential uptake of lighter Sr isotopes by bean sprouts. This study indicates that stable Sr isotope fractionation occurs during nutrient uptake by bean plants, and that controlled hydroponic experiments are highly effective for observing this process.

原文English
文章編號105081
期刊Journal of Food Composition and Analysis
116
DOIs
出版狀態Published - 2023 3月

All Science Journal Classification (ASJC) codes

  • 食品科學

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