Sustainable Chemistry One World最新文献

Red amaranth betacyanin–incorporated Cs/PVA colorimetric films as smart sensors for real-time fish freshness monitoring 红苋菜甜菜花青素- Cs/PVA比色膜作为实时鱼类新鲜度监测的智能传感器

Sustainable Chemistry One World

Pub Date : 2026-01-15 DOI: 10.1016/j.scowo.2026.100190

Alfianita Nuril Hidayaty , Saidun Fiddaroini , Ahmad Luthfi Fahmi , Dea Luthfianti Maharani , Qonitah Fardiyah , Arie Srihardyastutie , Akhmad Sabarudin

Ensuring fish freshness is critical for food safety, yet conventional assessment methods are destructive and unsuitable for real-time monitoring. This study develops a pH-responsive colorimetric film based on a chitosan–polyvinyl alcohol (Cs/PVA) matrix incorporated with red amaranth (Amaranthus tricolor L.) leaves extract (RAE), a highly betacyanin-rich natural pigment source. LC-HRMS analysis identified betacyanin (C₃₀H₃₄N₂O₁₉) as the dominant metabolite with the highest ion area (1.15 ×10 ¹⁰), alongside phenolics, carotenoids, and alkaloids that may enhance stability and responsiveness. UV–Vis characterization revealed a strong absorption peak at 535 nm and a total betacyanin content of 261 mg/L, with marked spectral shifts and color degradation above pH 9. Five film formulations were produced by varying extract volume of 1–5 mL (RAE1–RAE5), corresponding to 0.261–1.305 mg/L betacyanin. Film thickness increased with pigment loading (0.085 ± 0.01–0.138 ± 0.02 mm). FESEM revealed improved uniformity in RAE4, while FTIR confirmed strong hydrogen-bonding interactions between betacyanin and the Cs/PVA matrix. The films displayed distinct color transitions across pH 5–9, with ΔE values exceeding 50 for RAE4 and RAE5. Ammonia-vapor assays demonstrated high sensitivity, achieving > 50 % response within 180 min at 1 % NH₃. Application to tilapia fillets stored under refrigerated (6 ± 1 °C, 11 days) and ambient (23 ± 1 °C, 24 h) conditions showed strong correlation between film responses, pH elevation, and sensory quality decline. These findings establish red amaranth as a potent natural pigment and identify Cs/PVA-RAE4 and Cs/PVA-RAE5 films as sensitive, stable, and scalable freshness indicators suitable for real-time food monitoring.

确保鱼类的新鲜度对食品安全至关重要，但传统的评估方法具有破坏性，不适合实时监测。本研究以壳聚糖-聚乙烯醇（Cs/PVA）为基体，结合富含β -花青素的天然色素来源红苋菜（Amaranthus tricolor L.）叶提取物（RAE）制备ph响应比色膜。LC-HRMS分析确定甜菜苷（C₃₀H₃₄N₂O₁₉）是离子面积最高的主要代谢物（1.15 ×10 ¹⁰），还有酚类物质、类胡萝卜素和生物碱，它们可以增强稳定性和反应性。紫外可见光谱（UV-Vis）表征表明，其在535 nm处有很强的吸收峰，总β -花青素含量为261 mg/L，在pH值为9以上时出现明显的光谱偏移和显色降解。以1-5 mL （RAE1-RAE5）为不同的萃取量制备5种膜制剂，对应于0.261-1.305 mg/L甜菜花青素。膜厚随颜料的增加而增加（0.085 ± 0.01 ~ 0.138 ± 0.02 mm）。FESEM显示RAE4的均匀性得到改善，而FTIR证实β花青素与Cs/PVA基体之间存在强的氢键相互作用。薄膜在pH值5-9范围内呈现出明显的颜色转变，RAE4和RAE5的ΔE值超过50。氨蒸气测定显示出高灵敏度，在1 %的NH₃下，在180 min内达到>； 50 %的响应。对冷藏（6 ± 1°C， 11天）和常温（23 ± 1°C, 24 h）条件下的罗非鱼鱼片进行实验，发现薄膜反应、pH升高和感官质量下降之间存在很强的相关性。这些发现证实了红苋菜是一种有效的天然色素，Cs/PVA-RAE4和Cs/PVA-RAE5薄膜是一种灵敏、稳定、可扩展的新鲜度指标，适用于食品实时监测。

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引用次数: 0

Recyclable magnetic catalyst of bentonite-supported NiFe2O4 for catalytic wet peroxidation in dye-contaminated water 膨润土负载NiFe2O4的可回收磁性催化剂对染料污染水中湿式过氧化的催化作用

Sustainable Chemistry One World

Pub Date : 2026-01-13 DOI: 10.1016/j.scowo.2026.100188

Is Fatimah , Lilis Indah Sari , Nunung Nurlaela , Suresh Sagadevan , Azlan Kamari , Won Chun-Oh , Ruey-an Doong

Bentonite-supported NiFe₂O₄ nanocomposites with magnetic properties were synthesized via a facile coprecipitation followed by hydrothermal procedure. X-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) measurements reflected a homogeneous dispersion of NiFe₂O₄ into bentonite support which the crystallite size is increased along with increasing sintering temperature ranging at 400–600 °C. Textural properties such as specific surface area by the characterization using gas sorption analyser and scanning electron microscopy (SEM) analysis revealed the improved porosity leading to the higher specific surface area and porosity by sintering at higher temperature, which confirmed by scanning electron microscope (SEM) and transmission electron microscope (TEM) analyses, meanwhile the magnetic feature determined using vibrating sample magnetometer (VSM) showed a reduced magnetism along with increased surface area. The nanocomposites exhibited the catalytic activity in the catalytic wet peroxidation of methyl violet (MV) removal that possessed a participated adsorption in the surface mechanism. Faster MV degradation is achievable over ultrasound-assisted and microwave-assisted catalytic process suggesting the time-efficient intensifications. An almost complete removal of MV was gained over the prepared samples for 120 min, 60 min, and 10 min over conventional, US-assisted, and MW-assisted reaction conditions, respectively. The nanocomposites demonstrated a reusability with a maintained degradation efficiency until 5th cycle of usage.

采用水热法快速共沉淀法合成了具有磁性的膨润土负载型纳米复合材料。x射线衍射（XRD）和x射线光电子能谱（XPS）测试表明，NiFe2O4均匀分散在膨润土载体中，烧结温度在400 ~ 600 ℃范围内随烧结温度的升高晶粒尺寸逐渐增大。通过气体吸附分析仪和扫描电子显微镜（SEM）分析表征的比表面积等织构性能表明，在较高温度下烧结可以改善孔隙率，从而提高比表面积和孔隙率，扫描电子显微镜（SEM）和透射电子显微镜（TEM）分析也证实了这一点。同时，用振动样品磁强计（VSM）测定的磁性特征表明，磁性随表面积的增加而降低。纳米复合材料在催化湿式过氧化去除甲基紫（MV）中表现出催化活性，其表面机制为参与吸附。超声辅助和微波辅助催化过程可以实现更快的MV降解，表明时间效率增强。在常规、us辅助和mw辅助反应条件下，制备的样品在120 min、60 min和10 min的时间内几乎完全去除MV。该纳米复合材料具有可重复使用性，并且在第5次循环使用前仍保持降解效率。

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引用次数: 0

A fenton-assisted digestion protocol for rapid microplastic extraction, from organic-rich soils 从富有机质土壤中快速提取微塑料的fenton辅助消化方案

Sustainable Chemistry One World

Pub Date : 2026-01-12 DOI: 10.1016/j.scowo.2026.100186

Anish Verma , Revati Vijayrao Jagdhan , Naveen Chand , Subodh Sharma , Meenakshi Mittal , Sanjeev Kumar Prajapati

Current protocols for digesting non-plastic organic matter (OM) in soil before microplastic (MP) analysis are often time-consuming, particularly for samples with high organic content. This study modifies a Fenton-assisted wet peroxide oxidation (WPO) approach to shorten processing time while maintaining effective OM removal. The study was conducted using riverbed soil, roadside and garden soil. 10-gram soil for each sample was taken and extracted in triplicate. Thus, a total of 45 samples and 9 control samples were prepared. The sample digestion was carried out using 20 ml volume of 30 % hydrogen peroxide (H₂O₂) initially for 2 h, and then adding 20 ml of 0.05 M FeSO₄ solution. Continuous stirring was used to carry out the digesting process while keeping the temperature at 75°C. The method achieved OM removal efficiencies of 89.92 %, 61.49 %, and 81.91 % for riverbed, roadside, and garden soils, respectively, with a total digestion time of only 4 h. This represents a reduction in processing time of over 90 % compared to a common 72-hour protocol (Method 1), while achieving comparable microplastic recovery rates (50–60 %).

目前在微塑料（MP）分析之前消化土壤中非塑性有机物（OM）的方法通常很耗时，特别是对于有机含量高的样品。本研究改进了fenton辅助湿式过氧化氧化（WPO）方法，以缩短处理时间，同时保持有效的OM去除。研究采用河床土、路边土和花园土进行。每个样品取10克土壤，一式三次提取。因此，共制备45份样品和9份对照样品。样品消解用20 ml体积为30 %的过氧化氢（H2O2）初始消解2 h，然后加入20 ml 0.05 M的FeSO4溶液。在温度保持在75℃的条件下，连续搅拌进行消化过程。该方法对河床、路边和花园土壤的OM去除率分别为89.92 %、61.49 %和81.91 %，总消化时间仅为4 h。与常用的72小时方案（方法1）相比，这表示处理时间减少了90 %以上，同时实现了可比的微塑料回收率（50-60 %）。

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引用次数: 0

Exploring the potential of metal and metal oxide nanomaterials towards modern-day agriculture: A recent overview 探索金属和金属氧化物纳米材料在现代农业中的潜力：最新综述

Sustainable Chemistry One World

Pub Date : 2026-01-07 DOI: 10.1016/j.scowo.2026.100184

Sradhanjali Raut , Swetaleena Satapathy , Tanushree Sahoo , Amisha Sahukar , Sushree Sarada Mohanty , Annapurna Sahoo , Susanta Kumar Biswal , Gagan Kumar Panigrahi , Shraban Kumar Sahoo

Sustainable ecosystem management promotes eco-friendly agricultural techniques, including metal and metal oxide nanomaterials (MONPs) for enhancing crop production. Biologically synthesized nanoparticles from plants, bacteria, and fungi contribute to their sustainable characteristics. With sizes ranging from 1 to 100 nm, nanoparticles offer safer and more efficient mechanisms than conventional fertilizers and pesticides. Their use as nano-fertilizers, nano-pesticides, and antimicrobial agents improves soil quality, enhances crop productivity, and reduces environmental impact. Despite their potential, MONPs remain underutilized in agriculture, requiring further research to uncover their full benefits. Recent advances highlight biosynthesis methods using plants and microbes for cost-effective and ecological MONPs. Their interaction with plants enhances nutrient uptake, photosynthesis, antioxidative enzyme levels, and gene regulation, improving yield and stress resistance. Additionally, MONPs show promise in agricultural waste management and as nano-biosensors for detecting nutrients, pathogens, and toxins, safeguarding plant and soil health. Nanotechnology offers solutions to challenges in modern agriculture, such as soil degradation, pest infestation, and inefficient agrochemicals. NMs can mitigate abiotic stress by mimicking antioxidative enzymes, ensuring crop resilience in harsh environments. However, research on their fate, mobility, and toxicity in soil is limited, with most studies confined to laboratories. Understanding plant-nanoparticle interactions will refine their application in sustainable agriculture. This review underscores the need for extensive research to integrate MONPs into agriculture effectively. With increasing food demands and environmental concerns, nano-enabled agriculture holds promise for improving crop yield, soil fertility, and sustainable farming practices.

可持续生态系统管理促进生态友好型农业技术，包括用于提高作物产量的金属和金属氧化物纳米材料（MONPs）。从植物、细菌和真菌中生物合成的纳米颗粒有助于它们的可持续特性。纳米颗粒的尺寸从1到100 纳米不等，比传统的肥料和农药提供了更安全、更有效的机制。它们作为纳米肥料、纳米农药和抗菌剂的使用改善了土壤质量，提高了作物生产力，并减少了对环境的影响。尽管具有潜力，MONPs在农业中仍未得到充分利用，需要进一步研究以揭示其全部益处。最近的研究进展强调了利用植物和微生物进行生物合成的方法，这些方法具有成本效益和生态效益。它们与植物的相互作用增强了养分吸收、光合作用、抗氧化酶水平和基因调控，提高了产量和抗逆性。此外，MONPs在农业废弃物管理和作为纳米生物传感器检测营养物质、病原体和毒素、保护植物和土壤健康方面显示出前景。纳米技术为现代农业中的挑战提供了解决方案，例如土壤退化、害虫侵扰和低效的农用化学品。NMs可以通过模拟抗氧化酶来减轻非生物胁迫，确保作物在恶劣环境下的抗逆性。然而，关于它们在土壤中的命运、流动性和毒性的研究是有限的，大多数研究局限于实验室。了解植物与纳米粒子的相互作用将改进它们在可持续农业中的应用。这一综述强调了将MONPs有效整合到农业中的广泛研究的必要性。随着粮食需求和环境问题的日益增加，纳米农业有望提高作物产量、土壤肥力和可持续农业实践。

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引用次数: 0

Green functionalized carbon dots for photocatalytic dye degradation: A functional review 用于光催化染料降解的绿色功能化碳点：功能综述

Sustainable Chemistry One World

Pub Date : 2026-01-07 DOI: 10.1016/j.scowo.2026.100185

Deepak Kumar , Krishan Kumar Selwal , Jyoti Rani , Priya Saharan

The rising pollution of water resources with synthetic dyes creates serious environmental and health risks. Conventional dye removal techniques, such as physical, chemical, and biological processes, are frequently limited by high operational costs, partial degradation, and the formation of secondary pollutants. Recent advances in nanotechnology have led to the development of green carbon dots (GCDs) as effective, environmentally friendly photocatalysts for dye degradation. This review provides a detailed summary of GCD production, methodologies, structural and optical features, along with its application as a catalyst for dye removal under light irradiation. Furthermore, a rigorous comparison is made between traditional dye-removal methods and photocatalytic systems using GCDs, emphasizing their higher degradation efficiency, sustainability, and cost-effectiveness. The study concludes with future directions for improving photocatalytic performance through heteroatom doping, surface modification, and hybrid composites to enhance sustainable water treatment technologies. In addition to reviewing the synthesis and photocatalytic activity of GCDs, this study emphasizes their practical application in industrial-scale wastewater treatment systems, particularly in the textile and printing industries. The current study is unique in that it focuses solely on green-precursor-based carbon dots and their mechanism-driven function in dye degradation, a topic that has not been thoroughly studied. A qualitative comparison with established physicochemical and biological approaches reveals that GCDs exhibit higher degradation efficiency (>90 %), improved photostability and recyclability, and lower operational costs. This analysis expands on the economic significance and future promise of GCDs as sustainable photocatalysts for real-world environmental remediation.

合成染料对水资源的污染日益严重，造成了严重的环境和健康风险。传统的染料去除技术，如物理、化学和生物过程，经常受到操作成本高、部分降解和形成二次污染物的限制。近年来，纳米技术的进步使得绿色碳点（gcd）作为染料降解的有效、环保的光催化剂得到了发展。本文详细介绍了GCD的制备、方法、结构和光学特性，以及它在光照射下作为脱色催化剂的应用。此外，对传统的染料去除方法和使用gcd的光催化系统进行了严格的比较，强调了它们更高的降解效率、可持续性和成本效益。展望了通过杂原子掺杂、表面改性和杂化复合材料等方法提高光催化性能以增强可持续水处理技术的发展方向。除了综述GCDs的合成和光催化活性外，本研究还重点介绍了GCDs在工业规模废水处理系统中的实际应用，特别是在纺织和印刷工业中的应用。目前的研究的独特之处在于，它只关注基于绿色前驱体的碳点及其在染料降解中的机制驱动功能，这是一个尚未被彻底研究的主题。与现有的物理化学和生物方法进行定性比较表明，gcd具有更高的降解效率（>90 %），更好的光稳定性和可回收性，以及更低的运营成本。该分析扩展了gcd作为现实世界环境修复的可持续光催化剂的经济意义和未来前景。

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引用次数: 0

Integrated experimental–theoretical analysis of aluminum corrosion inhibition by ipomoea carnea leaf extract 甘薯叶提取物缓蚀铝的实验-理论综合分析

Sustainable Chemistry One World

Pub Date : 2026-01-06 DOI: 10.1016/j.scowo.2026.100182

Adarsh M. Patel , K.C. Desai , R.T. Vashi , P.S. Desai

An ethanolic extract of Ipomoea carnea (ICLE) leaves was systematically characterised through advanced spectroscopic methods and assessed for its efficacy as a green corrosion inhibitor for aluminium in 0.2–0.4 M HCl solution. The anti-corrosive behaviour of ICLE was scrutinised using diverse analytical techniques, including gravimetric analysis, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), atomic force microscopy (AFM), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), and computational modelling such as quantum chemical calculations and MD simulations. ICLE achieved an impressive 96.7 % inhibition rate at 2.0 g/L and 303 K in weight-loss trials, demonstrating potent surface protection at a minimum concentration. EIS data revealed a marked increase in the surface charge-transfer resistance (R_ct = 5233.2 Ω·cm²) and a decrease in double-layer capacitance, suggesting the formation of a robust adsorbed passive film. PDP analysis revealed a dual-action inhibition mechanism, which inhibits both anodic and cathodic processes. The overall inhibition efficiency was 93.02 %. Surface morphology studies confirmed the deposition of ICLE molecules, forming a uniform hydrophobic shield. The adsorption behaviour is consistent with the Langmuir model, suggesting single-layer coverage. Compared to other botanical inhibitors, ICLE performed better under harsh, thermally elevated conditions. DFT calculations highlighted that all five molecules derived from the extract are highly reactive species due to their low energy gaps, which is consistent with their nucleophilic character and tendency to donate electrons to the metal surface. Fukui function analysis pinpointed oxygen-bearing groups as key adsorption sites. MD simulations validated the structural integrity of the adsorbed layer.

通过先进的光谱方法系统地表征了Ipomoea carnea （ICLE）叶片的乙醇提取物，并评估了其在0.2-0.4 M HCl溶液中作为铝的绿色缓蚀剂的功效。利用各种分析技术，包括重量分析、电化学阻抗谱（EIS）、动电位极化（PDP）、原子力显微镜（AFM）、扫描电子显微镜和能量色散x射线光谱（SEM/EDS），以及量子化学计算和MD模拟等计算模型，仔细检查了ICLE的防腐行为。在减肥试验中，在2.0 g/L和303 K条件下，ICLE的抑制率达到了令人印象深刻的96.7 %，证明了在最低浓度下的有效表面保护。EIS数据显示，表面电荷转移电阻显著增加（Rct = 5233.2 Ω·cm²），双层电容显著减小，表明形成了坚固的吸附钝化膜。PDP分析揭示了双作用抑制机制，同时抑制阳极和阴极过程。总抑菌率为93.02 %。表面形貌研究证实了ICLE分子的沉积，形成了均匀的疏水屏蔽。吸附行为与Langmuir模型一致，表明单层覆盖。与其他植物抑制剂相比，ICLE在苛刻的高温条件下表现更好。DFT计算强调，由于萃取物的低能隙，这五种分子都是高活性物质，这与它们的亲核特性和向金属表面提供电子的倾向是一致的。福井功能分析指出含氧基团是关键的吸附位点。MD模拟验证了吸附层的结构完整性。

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引用次数: 0

Algal biodiesel: A comprehensive review of promise, challenges, and future pathways 藻类生物柴油：前景、挑战和未来途径的全面回顾

Sustainable Chemistry One World

Pub Date : 2026-01-05 DOI: 10.1016/j.scowo.2026.100183

M. Karthikeyan , R.S. Akshaya , N.S. Meenakshy , Lakshmi Natarajan , S. Sathish , R. Pugalendhi

Research on microalgae as a feedstock for biodiesel has increased due to the growing need for sustainable liquid fuels because of their high lipid productivity, quick growth, and suitability for wastewater and carbon-capture systems. While many reviews outline the processes of cultivation, harvesting, extraction, and transesterification, many do not provide an integrated interpretation of new downstream innovations and system-level performance. In order to fill that gap, this review combines a bibliometric meta-analysis (2010–2025) with a targeted assessment of low-energy downstream routes, specifically wet extraction, enzyme-assisted disruption, and in situ transesterification, to determine which technologies have the most potential to lower energy intensity. Furthermore, a techno-economic sensitivity analysis and scenario-based Life Cycle Assessment (LCA) demonstrate how the Net Energy Ratio (NER) is influenced by the electricity mix, nutrient sourcing, harvesting technique, and extraction route. The findings demonstrate that under low-carbon energy systems, combining wastewater nutrients, flocculation-based harvesting, and wet or in situ extraction can change algal biodiesel from energy-negative (NER < 0.7) to energy-positive (NER > 1.5). This review offers a comprehensive evaluation of practical routes for scaling algal biodiesel toward economically feasible and ecologically responsible biorefinery systems by combining bibliometric trends with technological advancements and LCA–TEA scenarios.

微藻作为生物柴油原料的研究越来越多，这是由于对可持续液体燃料的需求不断增长，因为它们具有高脂生产力、快速生长和适合废水和碳捕获系统。虽然许多综述概述了种植、收获、提取和酯交换的过程，但许多综述没有对新的下游创新和系统级性能提供综合解释。为了填补这一空白，本综述结合了文献计量学荟萃分析（2010-2025），并对低能耗下游路线进行了有针对性的评估，特别是湿提取、酶辅助破坏和原位酯交换，以确定哪些技术最有潜力降低能源强度。此外，技术经济敏感性分析和基于场景的生命周期评估（LCA）展示了净能量比（NER）如何受到电力组合、养分来源、收获技术和提取路线的影响。研究结果表明，在低碳能源系统下，结合废水营养物、絮凝收集和湿法或原位提取可以将藻类生物柴油从负能量（NER < 0.7）转变为正能量（NER > 1.5）。本文结合文献计量学趋势、技术进步和LCA-TEA情景，对藻类生物柴油向经济上可行、生态上负责任的生物炼制系统发展的实际路线进行了全面评估。

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引用次数: 0

Uptake, accumulation and gene expression in lucky bamboo (Dracaena sanderiana Sander) plants in response to lead (Pb) exposure 龙竹对铅暴露的吸收、积累及基因表达

Sustainable Chemistry One World

Pub Date : 2026-01-02 DOI: 10.1016/j.scowo.2025.100180

Lien Bich Ho , Lam Thanh Duong , Vinh Khang Huynh , Tuyen Cach Bui , Han Ngoc Bui , Biet Van Huynh

Lead (Pb) contamination poses a major environmental threat, especially in developing countries. In this study, the Pb accumulation capacity and molecular response of Dracaena sanderiana to Pb stress were investigated using hydroponic experiments. The plants were exposed to different Pb concentrations (0–1000 mg L⁻¹) for 60 days. The results showed that Pb was predominantly accumulated in the roots, with limited translocation to the aboveground tissues. D. sanderiana accumulated up to 38.5 mg g⁻¹ of Pb in roots without visible toxicity, suggesting its potential for phytoremediation. To further understand its molecular response, three antioxidant-related genes—glutathione S-transferase (DsGST), glutathione peroxidase (DsGPX) and copper/zinc superoxide dismutase (DsCyt-Cu/Zn SOD)—were cloned and their expression profiles under Pb stress were analyzed via qRT-PCR. The results revealed time- and concentration-dependent induction of all three genes, particularly in roots and stems. Notably, gene expression peaked at moderate Pb levels (400–600 mg L⁻¹) and declined at higher concentrations, indicating possible genotoxic effects. These findings suggest that D. sanderiana has both high Pb tolerance and an efficient antioxidant defense system, supporting its application in Pb-contaminated environments.

铅污染是一项重大的环境威胁，特别是在发展中国家。采用水培试验方法，研究了龙血树对Pb胁迫的富集能力及分子响应。这些植物暴露在不同浓度的铅环境中（0-1000 mg L⁻¹）60天。结果表明，铅主要在根系积累，向地上组织的转运有限。sanderiana在根中累积的Pb高达38.5 mg g⁻¹ ，无明显毒性，表明其具有植物修复的潜力。为了进一步了解其分子响应，克隆了3个抗氧化相关基因谷胱甘肽s转移酶（DsGST）、谷胱甘肽过氧化物酶（DsGPX）和铜锌超氧化物歧化酶（DsCyt-Cu/Zn SOD），并通过qRT-PCR分析了它们在铅胁迫下的表达谱。结果显示，所有三个基因的诱导都是时间和浓度依赖的，特别是在根和茎中。值得注意的是，基因表达在中等铅水平（400-600 mg L -毒血症）时达到高峰，在高浓度时下降，表明可能存在遗传毒性作用。上述结果表明，山桑藤具有较高的耐铅性和有效的抗氧化防御系统，支持其在铅污染环境中的应用。

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引用次数: 0

Vacuum fractional distillation of essential oils: Enrichment and purification of bioactive constituents 精油的真空分馏：生物活性成分的富集和纯化

Sustainable Chemistry One World

Pub Date : 2026-01-01 DOI: 10.1016/j.scowo.2025.100179

Dinh-Nhat Do , Xuan-Tien Le

Vacuum fractional distillation (VFD) is an efficient and environmentally friendly method for the separation and purification of thermally unstable and oxidizable bioactive compounds from essential oils through a virtually solvent-free process. This review highlights the importance of essential oil fractionation to meet the growing demands in the fragrance, cosmetic, food, and pharmaceutical industries. Fundamental principles and thermodynamics are summarized alongside VFD modeling, enabling prediction of phase behavior, column performance, hydrodynamics, and residence times, while reducing development time and scale-up risk. Published simulation and experimental studies are synthesized to define key influencing factors and practical operating windows for VFD performance. In addition, the review also identifies persistent data gaps, including non-standardized reporting practices, limited vacuum vapor-liquid equilibrium (VLE) data for key binary systems, and insufficient pilot-scale studies, which currently constrain reproducible research transfer and broader industrial implementation.

真空分馏（VFD）是一种高效、环保的方法，通过几乎无溶剂的过程从精油中分离和纯化热不稳定和可氧化的生物活性化合物。本文综述了精油分馏技术的重要性，以满足香料、化妆品、食品和制药行业日益增长的需求。基本原理和热力学与VFD建模一起总结，可以预测相行为，柱性能，流体动力学和停留时间，同时减少开发时间和扩大风险。综合已发表的仿真和实验研究，确定了VFD性能的关键影响因素和实际操作窗口。此外，审查还发现了持续存在的数据差距，包括非标准化的报告实践，关键二元系统的真空气液平衡（VLE）数据有限，以及中试规模研究不足，这些目前限制了可重复的研究转移和更广泛的工业实施。

引用次数: 0

Comparative analysis of magnetic tamarind kernels and GO-grafted magnetic tamarind kernels for the mitigation of Congo red dye 磁性罗望子核与氧化石墨烯接枝磁性罗望子核对刚果红染料缓释效果的比较分析

Sustainable Chemistry One World

Pub Date : 2025-12-31 DOI: 10.1016/j.scowo.2025.100178

Sunita Hooda , Sahil Kohli , Nishita , Rushali Makkar , Anita Narang , Anupama Shukla , Manisha Verma , Sanjeeta Rani , Geetu Gambhir , Laishram Saya

The present study focuses on the fabrication of magnetized tamarind kernel powder (MTKP) nanocomposites and graphene oxide-blended tamarind kernel powder (MTKP-GO) nanocomposites via co-precipitation method, and were employed for their application in the removal of Congo red dye from wastewater. Several physico-chemical techniques were investigated to analyse the surface morphology and structural identification of these nanocomposites. FE-SEM, XRD, and FTIR tests yielded distinctive findings, demonstrating the successful fabrication of magnetic TKP-GO with a sizable surface area and favourable magnetic response. Batch adsorption tests revealed a relatively greater adsorption potential for M TKP-GO (q_max= 236.795 ^mg/g) compared to M TKP (q_max =150.8045 ^mg/g). The pseudo-second-order model best fitted the data for adsorption kinetics with R² valus of 0.9952 and 0.99604 for MTKP AND MTKP-GO respectively. Of all the isotherm models investigated, interestingly it was found that the Langmuir model best fit the adsorption data for M TKP, while the Freundlich isotherm model best explained the adsorption behaviour for M TKP-GO.

采用共沉淀法制备了磁化罗望子仁粉（MTKP）纳米复合材料和氧化石墨烯-混合罗望子仁粉（MTKP- go）纳米复合材料，并将其应用于废水中刚果红染料的去除。研究了几种物理化学技术来分析这些纳米复合材料的表面形貌和结构特征。FE-SEM， XRD和FTIR测试得出了不同的结果，证明了磁性TKP-GO的成功制造具有相当大的表面积和良好的磁响应。批量吸附实验表明，M TKP- go （qmax= 236.795 mg/g）比M TKP （qmax= 150.8045 mg/g）具有更大的吸附潜力。拟二阶模型拟合MTKP和MTKP- go吸附动力学数据，R2值分别为0.9952和0.99604。在所有研究的等温线模型中，有趣的是，Langmuir模型最适合M TKP的吸附数据，而Freundlich等温线模型最能解释M TKP- go的吸附行为。

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