Soil & Environmental Health最新文献_第2页

Unravelling the effects of climate change on the soil-plant-atmosphere interactions: A critical review

Soil & Environmental Health

Pub Date : 2025-01-01 DOI: 10.1016/j.seh.2025.100130

Maria Nahin Oishy, Nigar Ahmmad Shemonty, Sadia Islam Fatema, Sadika Mahbub, Ebadunnahar Lukhna Mim, Maimuna Binte Hasan Raisa, Amit Hasan Anik

The soil-plant-atmosphere nexus is vital in terrestrial ecosystems, featuring complex feedback loops that link soil, plant, and atmospheric processes. This review analyzes the significant impacts of climate change on the soil-plant-atmosphere nexus, focusing on soil degradation, plant physiological responses, and atmospheric alterations. This comprehensive review aims to integrate current research, evaluate interdependent feedback mechanisms, and highlight the gaps in understanding the system's resilience under climatic stressors. A systematic literature analysis was done by focusing on 1) soil-plant-atmosphere nexus, 2) climate change impacts on soil dynamics, 3) climate stressors and plant responses, and 4) soil-plant-atmosphere feedback mechanisms, with specific criteria for data on extreme weather events, changed nutrient cycles, and CO₂-related alterations and temperature-related changes. Key findings reveal that climate-induced disruptions such as altered precipitation, increased temperatures, and extreme weather events weaken soil structure, damage nutrient cycling, and modify plant growth, thereby threatening agricultural productivity and ecosystem stability. Elevated CO₂ enhances photosynthesis but is counterbalanced by nutrient limitations and phenological mismatches affecting biodiversity. Feedback loops, such as those driven by decreased carbon sequestration and increased greenhouse gas emissions, amplify these effects. The review emphasizes the urgency of integrated mitigation and adaptation strategies, including the adoption of climate-resilient agricultural practices, urban green infrastructure, and renewable energy technologies.

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引用次数: 0

Advances in bioremediation strategies for PFAS-contaminated water and soil

Soil & Environmental Health

Pub Date : 2025-01-01 DOI: 10.1016/j.seh.2024.100126

Ayushman Bhattacharya , Jesna Fathima , Sunith Varghese , Pritha Chatterjee , Venkataramana Gadhamshetty

Per- and poly-fluoroalkyl substances (PFAS) are emerging contaminants, posing adverse impacts on water and soils due to their persistence, chemical transformations, and bioaccumulation. With over 15,000 different PFAS compounds being identified globally, their toxic effects and half-life spanning from 72 h to 8.5 years in humans are a serious concern. Bioremediation has emerged as an environmentally-friendly and cost-effective approach for PFAS degradation. However, there is still limited understanding of PFAS interactions with microorganisms and the roles of promising microbes in transforming PFAS into non-toxic end products. The knowledge about biotransformation of PFAS is essential to ameliorate the adaptation of microorganisms to local matrix and environment as well as to strengthen the natural enzymatic pathways and activities at a commercial scale, which is a major challenge. This review aims to address these gaps by providing a comprehensive analysis of recent developments in the bioremediation of PFAS-contaminated soil and water systems. The review focuses on the capabilities of phytoremediation, bioelectrochemical systems, and microbial species, including bacteria, fungi, and microalgae. Additionally, this study offers an in-depth overview of PFAS sources, their physicochemical characteristics, and their environmental fate and transport. Furthermore, it examines microbial metabolic activity, the formation of degradation intermediates, the role of co-metabolism, and the behaviour of microorganisms under PFAS stress as well as highlights future research directions. The key findings from this review include: 1) microbial community composition, field application, presence of co-substrate and cationic complexation govern biotransformation and fate of PFAS, 2) long chain PFAS are more susceptible to accumulate in the roots due to high hydrophobicity, and 3) algae-bacteria symbiotic relationships reduce microalgae growth inhibition and stimulates PFAS removal. Overall, this review emphasizes the potential of bioprocesses for large-scale PFAS bioremediation, contributing to environmental protection and mitigating the risks associated with PFAS contamination.

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引用次数: 0

Zinc and cadmium release from soil aggregate of different size fractions during repeated phytoextraction with Sedum plumbizincicola: Insight from stable isotope analysis

Soil & Environmental Health

Pub Date : 2025-01-01 DOI: 10.1016/j.seh.2025.100129

Jiawen Zhou , Jingqi Dong , Rebekah E.T. Moore , Mark Rehkämper , Katharina Kreissig , Barry Coles , Ting Gao , Peter Christie , Longhua Wu

Studies based on metal isotope changes at micro-scale interfaces within soils (i.e., between aggregates of different size fractions) can provide further insight into soil-plant interactions during long-term phytoextraction. Here, aggregate size separation was conducted on two contaminated soils that underwent phytoextraction using Zn/Cd hyperaccumulator Sedum plumbizincicola over six consecutive seasons. The dynamic changes in Zn and Cd concentrations, chemical fractionations and isotope compositions in soil aggregates were investigated. As phytoextraction proceeded from the first (C1) to the sixth (C6) season, shoot Zn displayed a marginally heavier isotope composition despite the essentially constant Zn isotope composition of bulk soils and the 50–250, 5–50, 1–5, and <1 μm aggregate size fractions. Most likely, this results from moderate depletion of Zn in the bulk soils (by ≤ 21%) and gradual release of heavy Zn isotopes into soil bioavailable pool due to soil acidification and Zn exchange during repeated phytoextraction. Light isotopes of Cd were significantly enriched in all aggregates of different size fractions (Δ^114/110Cd_C6–_C1 = −0.14 ± 0.04 to −0.02 ± 0.04‰) with similar decreases in Cd concentrations (50–64% and 87–92% in two soils) over the five consecutive seasons. Rayleigh modelling produced similar Cd isotope fractionation factors for aggregates of different size fractions, indicating that similar mechanisms controlled Cd release from soil aggregates. In contrast to other plants preferring light Cd isotopes, Zn/Cd hyperaccumulator continuously took up heavier Cd isotopes from soils. The results were due to the enhanced root exudation to mobilize more Cd from soil solids and organic ligands excreted from roots preferentially complexed heavy Cd isotopes based on density functional theory. The different isotopic behaviours of Zn and Cd suggest different processes controlling their migration in the soil-plant system.

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引用次数: 0

Stabilization of As and Sb in contaminated acidic shooting range soil with apatite mine tailings: Challenge of co-contamination

Soil & Environmental Health

Pub Date : 2025-01-01 DOI: 10.1016/j.seh.2024.100124

Salla H. Venäläinen , Aura Nousiainen , Minna Silvennoinen , Sanna Kanerva

Differences in the behaviors of shot-derived metal Pb and metalloids Sb and As render the remediation of metal(loid)-contaminated shooting range soils challenging. Treatment methods that generally reduce Pb solubility may simultaneously increase Sb and As solubility due to pH changes and ion competition. We investigated the potential of tailings from phosphate mining, previously used to immobilize Pb, to stabilize acidic shooting range soil without incurring the risk of enhanced Sb and As solubility. In a 2.5-year field trial, the soil of a former shooting range, surface-treated with tailings consisting of phlogopite, carbonate minerals calcite and dolomite, and residues of apatite, displayed no evidence of increased Sb or As solubility. Results from a parallel laboratory-scale pot experiment, carried out with test soils from the field site, supported the findings. Under acidic conditions, dissolution of the carbonate fraction of the tailings, and the subsequent decrease in soil acidity, contributed to the release of Sb and As from organic associations and/or Al/ Fe (hydr)oxide surfaces. We concluded that the abundant Ca²⁺ ions liberated upon carbonate dissolution probably reacted with the anionic species of Sb and As to form sparingly soluble Ca-antimonates and Ca-arsenates. Moreover, the solubility of intrinsic and apatite-derived P in the test soils, initially hypothesized to compete for adsorption with Sb and As and thereby increase their solubility, also decreased after tailings treatment. In conclusion, Pb-contaminated shooting range soil was successfully stabilized with the tailings without increasing Sb or As solubility.

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引用次数: 0

Water-stable aggregation and organic matter stabilisation by native plant Acacia auriculiformis in an early Technosol eco-engineered from Fe-ore tailings 由铁矿尾矿生态工程早期技术溶胶中的本地植物金合欢的水稳聚集和有机物稳定作用

Soil & Environmental Health

Pub Date : 2024-10-18 DOI: 10.1016/j.seh.2024.100115

Zhen Li , Songlin Wu , Yunjia Liu , Lars Thomsen , Fang You , Junjian Wang , Yuanfang Huang , Longbin Huang

Ecological engineering of Fe-ore tailings into Technosols (or soil-like growth media) offers a promising way to rehabilitate tailings without resorting to natural topsoil from other places. Among key pedogenic processes, soil aggregate formation and organic matter (OM) stabilisation are critical to the development of sustainable Technosols. The colonisation of pioneer plant species highly adaptive to infertile soils and water deficit may act as competent biological drivers to enhance these critical processes involved in Technosol formation. This study aimed to investigate the role of an Australian native plant species, Acacia auriculiformis, in enhancing water-stable aggregate formation and associated OM stabilisation using a pot experiment under glasshouse conditions. The influences of two relevant abiotic processes, including water deficit and phosphorus deficiency, on these key processes were evaluated. A. auriculiformis colonisation enhanced the formation of water-stable aggregates in the early Technosols, while the proportion of macroaggregates and microaggregates were altered differently, with the former increasing under well-watered conditions and the latter increasing under water deficit conditions. A. auriculiformis colonisation increased N-rich mineral-associated OM within the macroaggregates. In aggregates, OM stabilisation was related to interactions of carboxyl-rich organic groups with tailing minerals. The influences of water deficit and phosphorus deficiency on aggregate formation and OM stabilisation were mediated via their impacts on the growth and root functions of A. auriculiformis, including root extension, entanglement, and exudation. From these findings, the utilisation of A. auriculiformis is recommended as a biological driver to facilitate the development of early Technosols from eco-engineered Fe-ore tailings.

将铁矿尾矿转化为 Technosols（或类似土壤的生长介质）的生态工程为尾矿的恢复提供了一种前景广阔的方法，而无需从其他地方获取天然表土。在关键的成土过程中，土壤团聚体的形成和有机质（OM）的稳定对可持续 Technosols 的发展至关重要。对贫瘠土壤和缺水具有高度适应性的先驱植物物种的定植可能会成为促进这些涉及技术溶胶形成的关键过程的有效生物驱动力。本研究旨在通过玻璃温室条件下的盆栽实验，研究澳大利亚本土植物物种金合欢在促进水稳聚合体形成和相关 OM 稳定方面的作用。评估了两个相关非生物过程（包括缺水和缺磷）对这些关键过程的影响。A. auriculiformis 的定殖增强了早期技术溶胶中水稳定聚合体的形成，而大聚合体和微聚合体的比例发生了不同的变化，前者在水分充足的条件下增加，后者在缺水条件下增加。A. auriculiformis 的定殖增加了大团聚体中富含 N 的矿质 OM。在聚集体中，OM 的稳定与富含羧基的有机基团与尾矿的相互作用有关。缺水和缺磷对聚合体形成和 OM 稳定性的影响是通过它们对 A. auriculiformis 的生长和根系功能（包括根系延伸、缠绕和渗出）的影响来介导的。根据这些研究结果，建议将金合欢作为一种生物驱动力来利用生态工程化铁矿尾矿开发早期技术溶胶。

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引用次数: 0

Effects of pyrolysis temperature on the photooxidation of water-soluble fraction of wheat straw biochar based on 21 T FT-ICR mass spectrometry 基于 21 T FT-ICR 质谱法的热解温度对小麦秸秆生物炭水溶部分光氧化作用的影响

Soil & Environmental Health

Pub Date : 2024-10-01 DOI: 10.1016/j.seh.2024.100114

Amy M. McKenna , Martha L. Chacón-Patiño , Holly K. Roth , William Bahureksa , Robert B. Young , James A. Ippolito , Yan Xin , Thomas Borch , Antony J. Williams , Huan Chen

Biochar, formed through the pyrolysis or burning of organic wastes, has a complex chemical composition influenced by feedstock, pyrolysis temperature, and reaction conditions. Water-soluble, dissolved black carbon species released from biochar comprise one of the most photoreactive organic matter fractions. Photodegradation of these water-soluble species from wheat straw biochar, produced at different pyrolysis temperatures in laboratory microcosms, resulted in noticeable compositional differences. This study characterized water-soluble transformation products formed through the photodegradation of wheat straw biochar pyrolyzed at 300, 400, 500, or 600°C by electrospray ionization 21 T Fourier transform ion cyclotron resonance mass spectrometry (21T FT-ICR MS). We also evaluated global trends in the toxicity of these water-soluble fractions using MicroTox™ to assess the impacts of pyrolysis temperature. Additionally, we examined biochar surface morphology after photodegradation and observed minimal change after irradiation for 48 h, though the total yield of water-soluble biochar species varied with pyrolysis temperature. Trends in toxicity observed from MicroTox® analysis reveal that water-soluble photoproducts from biochar produced at 300°C and 900°C are nearly three times as toxic compared to dark controls. The ultrahigh resolving power of 21T FT-ICR MS allows for the separation of tens of thousands of highly oxidized, low-molecular-weight (<1 kDa) species, showing that photoproducts span a wider range of H/C and O/C ratios compared to their dark analogs. This study highlights the impacts of photodegradation on the molecular composition of water-soluble biochar species and underscores the influence of pyrolysis temperature on the quantity and composition of dissolved organic species.

生物炭是通过热解或焚烧有机废物形成的，其化学成分复杂，受原料、热解温度和反应条件的影响。生物炭中释放出的水溶性溶解黑碳是光活性最强的有机物部分之一。小麦秸秆生物炭中的这些水溶性物质在实验室微生态系统中以不同的热解温度产生，其光降解导致了明显的成分差异。本研究通过电喷雾离子化 21T 傅立叶变换离子回旋共振质谱法（21T FT-ICR MS）对在 300、400、500 或 600°C 高温下热解的小麦秸秆生物炭光降解形成的水溶性转化产物进行了鉴定。我们还使用 MicroTox™ 评估了这些水溶性馏分毒性的全球趋势，以评估热解温度的影响。此外，我们还检查了光降解后的生物炭表面形态，观察到辐照 48 小时后生物炭表面形态变化极小，但水溶性生物炭的总产量随热解温度的变化而变化。从 MicroTox® 分析中观察到的毒性趋势表明，在 300°C 和 900°C 温度下生产的生物炭产生的水溶性光产物的毒性几乎是黑暗对照组的三倍。21T FT-ICR MS 的超高分辨能力可分离数以万计的高度氧化、低分子量（1 kDa）物种，表明与黑暗类似物相比，光产物的 H/C 和 O/C 比率范围更广。这项研究强调了光降解对水溶性生物炭分子组成的影响，并强调了热解温度对溶解有机物数量和组成的影响。

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引用次数: 0

In-situ prediction of soil organic carbon contents in wheat-rice rotation fields via visible near-infrared spectroscopy 通过可见近红外光谱原位预测小麦-水稻轮作田土壤有机碳含量

Soil & Environmental Health

Pub Date : 2024-09-28 DOI: 10.1016/j.seh.2024.100113

Lingju Dai , Jie Xue , Rui Lu , Zheng Wang , Zhongxing Chen , Qiangyi Yu , Zhou Shi , Songchao Chen

Visible near-infrared (VNIR) spectroscopy is a reliable method for estimating soil properties. However, its effectiveness in accurately predicting soil organic carbon (SOC) contents, particularly in wheat-rice rotation fields, remains uncertain. In this study, we collected 202 samples from wheat-rice fields (0–20 cm) in southeastern China and measured in-situ spectra of the vertical surface of the soil cores and the laboratory spectra of the dried and sieved soil samples. Our study focused on evaluating three algorithms - external parameter orthogonalization (EPO), direct standardization (DS), and piecewise direct standardization (PDS) - to address the influence of external factors, particularly soil moisture. To carry out our analysis, the dataset was divided into calibration (141 samples) and validation (61 samples) sets via the Kennard-Stone algorithm. A subset of the corresponding in-situ and laboratory spectra in the calibration set (transfer set) was used to derive the transfer matrix for EPO, DS, and PDS, enabling the conversion of in-situ spectra to laboratory spectra by characterizing their differences. Four machine learning models, including cubist, partial least squares regression (PLSR), random forest (RF), and memory-based learning (MBL), were used to predict the SOC, particulate organic carbon (POC), and mineral-associated organic carbon (MAOC) contents based on the laboratory, in-situ, and corrected in-situ spectra. The results revealed that the laboratory spectra outperformed the non-corrected in-situ spectra, with coefficients of determination (R²) of 0.91, 0.75, and 0.80 for SOC, POC, and MAOC, respectively. Among the models, MBL and PLSR exhibited the highest average R² at 0.85–0.86. EPO marginally improved the prediction accuracy (R² increased from 0.85 to 0.87 for SOC, 0.64 to 0.69 for POC, and 0.75 to 0.82 for MAOC). These promising prediction accuracies underscore the potential of VNIR spectra for in-situ predictions in wheat-rice fields in Southeast China, offering insights for predicting SOC contents via in-situ spectroscopy.

可见光近红外（VNIR）光谱法是一种估算土壤特性的可靠方法。然而，它在准确预测土壤有机碳（SOC）含量，尤其是小麦-水稻轮作田土壤有机碳含量方面的有效性仍不确定。在本研究中，我们从中国东南部的小麦-水稻田中采集了 202 个样本（0-20 厘米），并测量了土壤核心垂直表面的原位光谱以及干燥和过筛土壤样本的实验室光谱。我们的研究重点是评估三种算法--外部参数正交化（EPO）、直接标准化（DS）和片断直接标准化（PDS）--以解决外部因素（尤其是土壤湿度）的影响。为了进行分析，我们通过 Kennard-Stone 算法将数据集分为校准集（141 个样本）和验证集（61 个样本）。校准集（转移集）中相应的原位光谱和实验室光谱的子集用于推导 EPO、DS 和 PDS 的转移矩阵，通过表征它们之间的差异将原位光谱转换为实验室光谱。利用立方体、偏最小二乘回归（PLSR）、随机森林（RF）和基于记忆的学习（MBL）等四种机器学习模型，根据实验室光谱、原位光谱和校正后的原位光谱预测 SOC、颗粒有机碳（POC）和矿质相关有机碳（MAOC）的含量。结果显示，实验室光谱优于未经校正的原位光谱，SOC、POC 和 MAOC 的判定系数 (R2) 分别为 0.91、0.75 和 0.80。在这些模型中，MBL 和 PLSR 的平均 R2 最高，为 0.85-0.86。EPO 稍微提高了预测准确度（SOC 的 R2 从 0.85 提高到 0.87，POC 的 R2 从 0.64 提高到 0.69，MAOC 的 R2 从 0.75 提高到 0.82）。这些良好的预测准确性凸显了近红外光谱在中国东南部小麦-水稻田原位预测中的潜力，为通过原位光谱预测 SOC 含量提供了启示。

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引用次数: 0

The potential of phosphate mine tailings in the remediation of acidic Pb-contaminated soil 磷矿尾矿在修复受铅污染的酸性土壤中的潜力

Soil & Environmental Health

Pub Date : 2024-08-22 DOI: 10.1016/j.seh.2024.100112

Salla H. Venäläinen , Aura Nousiainen , Sanna Kanerva

We investigated the potential of tailings from phosphate mining, consisting of phlogopite, carbonate minerals calcite and dolomite, and residues of apatite, to serve as a stabilizing agent in the remediation of Pb-contaminated soil in situ or on-site. In a 2.5-year field trial, test plots located in a former shooting range area were surface-treated with the tailings and analyzed for tailings-induced changes in Pb solubility and thus potential mobility within the soil profile. The factors and mechanisms controlling tailings-induced changes in Pb solubility in various soil types, and the susceptibility of Pb to leaching down the soil profile following the treatment, were investigated in supplementary laboratory-scale experiments carried out with horizon-specific soil samples collected from the field site. In the tailings-treated soil, the dissolution of the carbonate fraction of the tailings and the subsequent increase in soil pH contributed to the displacement of shot-derived Pb²⁺ ions by the carbonate-derived calcium ions (Ca²⁺) and the adsorption of Pb²⁺ by soil organic matter and Al, Fe, and Mn (hydr)oxide surfaces. Moreover, the apatite fraction of the tailings formed poorly-soluble compounds with Pb, particularly in soils high in exchangeable Pb²⁺ with respect to their cation exchange capacity. Consequently, the Pb solubility in tailings-treated soils substantially decreased. The reduction in Pb solubility was most evident in the organic topsoil high in Pb. Despite the liming effect of the tailings, and the susceptibility of Pb to form organic complexes conducive to solubilization upon an increase in pH, we found no evidence of tailings-induced leaching of Pb down the soil profile.

我们研究了磷矿开采产生的尾矿（由辉绿岩、碳酸盐矿物方解石和白云石以及磷灰石残留物组成）在原地或现场修复受铅污染的土壤时作为稳定剂的潜力。在一项为期 2.5 年的实地试验中，用尾矿对位于前靶场地区的试验地块进行了表面处理，并分析了尾矿引起的铅溶解度变化，以及铅在土壤剖面中的潜在流动性。在实验室规模的补充实验中，利用从野外采集的特定地层土壤样本，研究了控制尾矿引起的各种土壤类型中铅溶解度变化的因素和机制，以及处理后铅在土壤剖面中向下沥滤的易感性。在经过尾矿处理的土壤中，尾矿中碳酸盐部分的溶解以及随后土壤 pH 值的升高促使碳酸盐衍生的钙离子 (Ca2+) 取代了喷丸衍生的 Pb2+ 离子，同时土壤有机质和 Al、Fe 和 Mn（水）氧化物表面也吸附了 Pb2+。此外，尾矿中的磷灰石部分与铅形成了难溶性化合物，特别是在可交换 Pb2+（相对于其阳离子交换能力）较高的土壤中。因此，尾矿处理过的土壤中的铅溶解度大大降低。在含铅量高的有机表层土壤中，铅溶解度的降低最为明显。尽管尾矿具有限制作用，而且铅在 pH 值升高时容易形成有利于溶解的有机复合物，但我们没有发现尾矿引起的铅向下沥滤土壤剖面的证据。

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引用次数: 0

Fortifying casein phosphopeptides and Ca in wheat reduces the As, Cd, and Pb bioavailability based on a mouse model: Calcium and phosphate transporters and gut microbiota 基于小鼠模型，强化小麦中的酪蛋白磷酸肽和钙可降低砷、镉和铅的生物利用率：钙和磷酸盐转运体与肠道微生物群

Soil & Environmental Health

Pub Date : 2024-08-20 DOI: 10.1016/j.seh.2024.100111

Sheng-Zhi Chen , Xin-Ying Lin , Rong-Yue Xue , Xu Duan , Dong-Mei Zhou , Lena Q. Ma , Hong-Bo Li

Reducing the oral bioavailability of metal contaminants including As, Cd, , and Pb in foods can protect human health. Studies showed reduced metal bioavailability with elevated Ca and Fe intake; however, the effectiveness of enhancing food Ca and Fe bioavailability remains unknown. Based on a mouse bioassay and using metal accumulation in mouse tissues (kidneys and liver) as the bioavailability endpoint, this study investigated the roles of casein phosphopeptides (CPP, food nutrition fortifier) in lowering the As, Cd, and Pb bioavailability from consuming a metal-contaminated wheat. The CPP amendment at 0.10–0.50% in wheat promoted its Ca bioavailability, causing 33–62% and 59–80% decreases in the gene expression encoding for duodenal Ca and phosphate transporters in mice. This limited transcellular transport of Cd²⁺ and inorganic arsenate via Ca and phosphate transporters respectively, thus leading to 27% and 34% decreases in Cd and As contents in mouse kidneys fed with wheat at 0.50% CPP amendment. In addition, CPP promoted the colonization of Feacalibaculum and Bifidobacterium in mouse gut, likely promoting As excretion in feces by 81–112%. In contrast to As, and Cd, CPP failed to reduce Pb contents in mouse tissue after consuming CPP-amended wheat, probably by elevating wheat-Pb solubility in the intestinal fluid by 48–136%. However, co-amendment of 0.30% CPP and 500 μg g⁻¹ Ca as Ca gluconate lowered the As, Cd, and Pb contents in mouse kidneys by 38–71%. The data indicate that fortifying Ca together with CPP in wheat can reduce human exposure to multi-metals via dietary intake.

降低食品中金属污染物（包括砷、镉和铅）的口服生物利用度可以保护人类健康。研究表明，随着钙和铁摄入量的增加，金属生物利用率也会降低；然而，提高食物中钙和铁生物利用率的效果仍不清楚。本研究以小鼠生物测定为基础，以金属在小鼠组织（肾脏和肝脏）中的积累作为生物利用度终点，研究了酪蛋白磷酸肽（CPP，食品营养强化剂）在降低食用受金属污染的小麦所产生的砷、镉和铅生物利用度方面的作用。在小麦中添加 0.10-0.50% 的 CPP 可提高钙的生物利用率，使小鼠十二指肠钙和磷酸盐转运体的编码基因表达量分别下降 33-62% 和 59-80%。这限制了 Cd2+ 和无机砷酸盐分别通过 Ca 和磷酸盐转运体的跨细胞转运，从而导致用 CPP 含量为 0.50%的小麦喂养的小鼠肾脏中 Cd 和 As 的含量分别下降了 27% 和 34%。此外，CPP 还能促进小鼠肠道中 Feacalibaculum 和双歧杆菌的定植，从而使小鼠粪便中砷的排泄量增加 81-112%。与砷和镉相反，食用经 CPP 改良的小麦后，CPP 未能降低小鼠组织中的铅含量，这可能是由于小麦铅在肠液中的溶解度提高了 48-136%。然而，同时添加 0.30% CPP 和 500 μg g-1 Ca（葡萄糖酸 Ca）可将小鼠肾脏中的砷、镉和铅含量降低 38-71%。数据表明，在小麦中强化 Ca 和 CPP 可减少人类通过膳食摄入多种金属的暴露量。

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引用次数: 0

Corrigendum to “Selenium contents, speciation and bioaccessibility of Se-enriched rice grains from Chinese markets” [Soil Environ. Health 1 (2023) 100037] 中国市场富硒大米中硒的含量、种类和生物可利用性"[土壤环境与健康 1 (2023) 100037]更正

Soil & Environmental Health

Pub Date : 2024-08-01 DOI: 10.1016/j.seh.2024.100098

Jing-Yu Zeng , Dong-Xing Guan , Zhi-Hua Dai , Jia-Yi Chen , Wen-Jie Dong , Song Ding , Lena Q. Ma

引用次数: 0