Ultrasonics Sonochemistry最新文献_第4页

Ultrasound-Assisted Deep Eutectic Solvent-Based Extraction of Polysaccharides from Okra: Optimization by Response Surface Methodology and Artificial Neural Network Modeling 超声辅助深共晶溶剂法提取秋葵多糖：响应面法和人工神经网络建模优化

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-09 DOI: 10.1016/j.ultsonch.2025.107715

Muhammad Imran , Chih-Huang Weng , Girma Sisay Wolde , Ying-Chen Chen , Yi-Jin Wu , Shang-Ming Huang , Yao-Tung Lin

Plant-derived polysaccharides are critical bioactive compounds; however, conventional extraction methods are often inefficient, energy-intensive, and may compromise their bioactivity. Ultrasound-assisted deep eutectic solvent (UA-DES) extraction offers a greener alternative by integrating acoustic cavitation with tunable solvent properties; however, optimization remains complex due to the interaction of multiple processing variables. This study reports a novel application of ultrasound-assisted deep eutectic solvent (UA-DES) extraction for okra polysaccharides (OPs), with process optimization using response surface methodology (RSM) and artificial neural network (ANN) modeling to identify optimal conditions and clarify nonlinear extraction behavior. Among the tested DES systems, choline chloride–citric acid (CCA) exhibited the highest extraction performance. Single-factor experiments and RSM identified sonication time and liquid–solid ratio as key variables. The ANN model achieved higher predictive accuracy than RSM and captured nonlinear and synergistic parameter interactions that were not evident in traditional response surfaces, providing deeper insight into process behavior. Under optimized conditions (2 h, 80 °C, 190 W, 60 mL/g), UA-DES extraction produced 23.56 % OPs and 80.75 % DPPH• scavenging activity, representing 94 % higher yield and 28 % greater antioxidant activity than hot-water ultrasonic (HWU) extraction. UA-DES-derived OPs contained higher contents of uronic acids, total sugars, and glucans, and uniquely included arabinose absent in HWU extracts. Structural analyses revealed pyranose configurations, amorphous crystallinity, and porous microstructures, which collectively contribute to improved solubility and bioactivity. Overall, UA-DES extraction using CCA provides an eco-efficient strategy for producing high-value okra polysaccharides. The integrated RSM–ANN framework enables precise optimization and enhanced mechanistic understanding, supporting UA-DES as a scalable, green technology for the production of functional polysaccharides.

植物源性多糖是重要的生物活性化合物；然而，传统的提取方法往往效率低下，能源密集，并可能损害其生物活性。超声辅助深共晶溶剂（UA-DES）萃取通过将声空化与可调溶剂性质相结合，提供了一种更环保的选择；然而，由于多个加工变量的相互作用，优化仍然是复杂的。本研究报道了超声辅助深度共晶溶剂（UA-DES）提取秋葵多糖（OPs）的新应用，并利用响应面法（RSM）和人工神经网络（ANN）建模对工艺进行优化，以确定最佳条件并阐明非线性提取行为。在所测试的DES体系中，氯化胆碱-柠檬酸（CCA）体系的萃取效果最好。单因素实验和RSM实验确定超声时间和液固比是关键变量。与RSM相比，人工神经网络模型获得了更高的预测精度，并捕获了传统响应面中不明显的非线性和协同参数相互作用，从而更深入地了解过程行为。在优化条件下（2 h, 80℃，190 W, 60 mL/g）， UA-DES提取的OPs清除率为23.56%，DPPH•清除率为80.75%，比热水超声（HWU）提取提高94%，抗氧化活性提高28%。ua - des衍生的OPs含有较高的醛酸、总糖和葡聚糖含量，并且独特地包含了HWU提取物中不存在的阿拉伯糖。结构分析揭示了吡喃糖构型，无定形结晶性和多孔微结构，这些共同有助于提高溶解度和生物活性。综上所述，用CCA提取UA-DES为生产高价值秋葵多糖提供了一种生态高效的策略。集成的RSM-ANN框架能够精确优化和增强机制理解，支持UA-DES作为可扩展的绿色技术，用于生产功能性多糖。

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引用次数: 0

Liposome-integrated ultrasound coupling subcritical water extraction for enhanced the efficiency and stability of Phyllanthus emblica polyphenols 脂质体-超声耦合亚临界水萃取法提高余甘子多酚的提取效率和稳定性。

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-09 DOI: 10.1016/j.ultsonch.2025.107717

Shuhui Liang , Xinyi Luo , Zexin Chen , Yushi Gong , Yong Hu , Fenglin Song , Yongguang Bi , Dongmei Li , Juan Guo

Ultrasound coupling subcritical water extraction (USWE) was developed to extract polyphenols from Phyllanthus emblica pomace (PPEPs), and extraction parameters affecting the yield of PPEPs were systematically optimized. USWE was comprehensively evaluated in terms of extraction parameters, yield, antioxidant capacity, major bioactive components, and infrared characteristics of PPEPs, and compared with four other extraction methods. Microstructural changes in the pomace were examined using scanning electron microscopy (SEM) to elucidate the interactions between the extraction process and the plant matrix. Finally, to address the issues of the instability of PPEPs and their low bioavailability, liposomal encapsulation was performed and the physicochemical properties were evaluated. Results demonstrated that the yield of PPEPs from USWE was 1.8-fold and 1.35-fold higher than those from solvent extraction (SE) and subcritical water extraction (SWE), respectively. Furthermore, PPEPs from USWE exhibited the strongest antioxidant activity and higher levels of six major bioactive compounds. SEM analysis revealed a significant increase in porosity and enlarged pores in USWE-treated pomace. Additionally, Phyllanthus emblica polyphenol liposomes (PPEPL) were prepared by thin-film dispersion technique. PPEPL showed a high encapsulation efficiency of 83.07 ± 0.09 % and retained structural integrity after 4 weeks of storage at 4 °C. PPEPL exhibited enhanced antioxidant activity compared to free PPEPs. The IC₅₀ values for scavenging DPPH·, ABTS·⁺, and hydroxyl radicals were 3.2-, 3.3-, and 1.6-fold lower, respectively. In summary, integrating USWE with liposome technology provides an efficient strategy for obtaining stable, high-quality bioactive PPEPs.

采用超声耦合亚临界水萃取法（USWE）提取余甘子果渣中的多酚，并对影响余甘子果渣得率的提取工艺参数进行了系统优化。从提取参数、得率、抗氧化能力、主要生物活性成分、红外特性等方面对USWE进行综合评价，并与其他4种提取方法进行比较。利用扫描电子显微镜（SEM）研究了渣的微观结构变化，以阐明提取过程与植物基质之间的相互作用。最后，为了解决pppep的不稳定性和生物利用度低的问题，进行了脂质体包封，并对其理化性质进行了评价。结果表明，与溶剂萃取法（SE）和亚临界水萃取法（SWE）相比，USWE法的ppps得率分别提高了1.8倍和1.35倍。此外，来自USWE的pep表现出最强的抗氧化活性和六种主要生物活性化合物的较高水平。SEM分析显示，uswe处理的渣土孔隙率显著增加，孔隙扩大。此外，采用薄膜分散法制备了余甘子多酚脂质体（PPEPL）。PPEPL包封率为83.07±0.09%，在4℃下保存4周后仍保持结构完整性。与游离ppep相比，PPEPL表现出更强的抗氧化活性。清除DPPH·、ABTS·+和羟基自由基的IC50值分别降低了3.2倍、3.3倍和1.6倍。综上所述，将USWE与脂质体技术相结合为获得稳定、高质量的生物活性ppp提供了一种有效的策略。

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引用次数: 0

Ultrasonic cavitation-induced radical processes for tetracycline degradation and Cr(VI) reduction: Highlighting the pivotal role of Cr(V) intermediates 超声空化诱导四环素降解和Cr（VI）还原的自由基过程：突出Cr(V)中间体的关键作用

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-09 DOI: 10.1016/j.ultsonch.2025.107713

Daokui Li , Binhui Luo , Feng Hong , Ruiping Li , Yuanfei Lv , Yingping Huang , Di Huang

Tetracycline (TC) and Cr(VI) often co-occur in wastewaters, where their synergistic toxicity and contrasting redox behaviors complicate remediation. In this study, ultrasonic cavitation was employed as a employed as a green and efficient process to simultaneously degrade TC and reduce Cr(VI). Under optimal conditions (20 kHz, 12 mm probe, 131 μm amplitude, 308 K), TC and Cr(VI) removal reached 62.9 % and 70.8 % within 2 h, respectively. The synergistic mechanism was elucidated through radical quenching, electron paramagnetic resonance (EPR) spectroscopy, and complementary computational fluid dynamics (CFD) simulations and density functional theory (DFT) calculations. Cavitation bubble collapse generated both oxidative and reductive radicals, enabling concurrent oxidation and reduction. Radical identification showed that ·O₂^– and ·H were the dominant reductants responsible for Cr(VI) reduction, whereas ¹O₂ and ·OH primarily controlled TC degradation. CFD simulations further demonstrated that mechanical energy, internal energy, and bubble growth rate during cavitation were positively correlated with radical generation. Importantly, experimental evidence suggested that Cr(VI) promoted the conversion of ·O₂^– into ¹O₂, establishing a coupled radical pathway that linked metal detoxification with antibiotic degradation. Furthermore, Cr(V) intermediates were detected as key transient species, exhibiting strong oxidative capacity toward TC and accelerating Cr(VI) reduction. Complementary DFT calculations confirmed that the coexistence of TC and ·H markedly lowered the energy barrier of Cr(VI) reduction. Overall, this work provides new mechanistic insight into radical transformation and metal-organic coupling under ultrasonic cavitation, and highlights its potential as a sustainable strategy for treating waters co-contaminated with metals and antibiotics.

四环素（TC）和Cr（VI）经常共存于废水中，它们的协同毒性和不同的氧化还原行为使修复变得复杂。在本研究中，超声波空化是一种绿色高效的工艺，可以同时降解TC和降低Cr（VI）。在最佳条件（20 kHz， 12 mm探针，131 μm振幅，308 K）下，2 h内对TC和Cr（VI）的去除率分别达到62.9%和70.8%。通过自由基猝灭、电子顺磁共振（EPR）谱、互补计算流体力学（CFD）模拟和密度泛函理论（DFT）计算，阐明了协同机理。空化泡破裂产生氧化自由基和还原自由基，使氧化和还原同时发生。自由基鉴定表明，·O2-和·H是Cr（VI）还原的主要还原剂，而1O2和·OH主要控制TC的降解。CFD模拟进一步表明，空化过程中的机械能、内能和气泡生长速率与自由基生成呈正相关。重要的是，实验证据表明，Cr（VI）促进了·O2-转化为1O2，建立了一个将金属解毒与抗生素降解联系起来的耦合自由基途径。此外，Cr(V)中间体是关键的瞬态物质，对TC表现出很强的氧化能力，加速了Cr（VI）的还原。互补DFT计算证实，TC和·H的共存显著降低了Cr（VI）还原的能垒。总的来说，这项工作为超声空化作用下的自由基转化和金属-有机偶联提供了新的机制见解，并突出了其作为处理金属和抗生素共污染水的可持续策略的潜力。

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引用次数: 0

Mechanism of deep removal of iron impurities from zinc sulfate solutions via ultrasonic-enhanced goethite process 超声强化针铁矿法深度去除硫酸锌溶液中铁杂质的机理

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-07 DOI: 10.1016/j.ultsonch.2025.107708

Heng Zhang , Shuxuan Hu , Shixing Wang , Rong Zhu , Yadong Li , Libo Zhang

This study reports an ultrasound-enhanced goethite process for deep removal of iron impurities from a zinc sulfate solution. This method eliminates the reliance on external seed crystals by using the ultrasonic cavitation effect to directly induce the formation of α-iron(III) oxide–hydroxide (a-FeOOH). Single-factor experiments were conducted to optimize process parameters. The Fe removal efficiency reached 99.72 % under optimal conditions: ultrasonic power = 160 W, pH = 3.0, reaction time = 80 min, and hydrogen peroxide (H₂O₂) dosage = 12 mL. The resulting goethite slag exhibited an iron content of 30.72 % and a moisture content of 39.21 %, showing a 3.92 % increase in the iron content and an 11.05 % decrease in the moisture content compared with the traditional process. Multiscale characterization and density functional theory (DFT) calculations were used to explore the mechanism. DFT calculations confirmed that α-FeOOH formed bidentate [adsorption energy (ΔE) = − 6.161] and monodentate (ΔE = − 3.223) ligand adsorption configurations with SO₄²⁻ under conventional and ultrasonic conditions. The monodentate configuration exhibited low thermodynamic stability and was highly prone to desorption, facilitating goethite formation. Electron paramagnetic resonance analysis revealed that ultrasound promoted the cleavage of H₂O₂ to generate abundant ·OH radicals, accelerating the oxidation kinetics of Fe²⁺. Furthermore, ultrasound disrupted iron hydroxide [Fe(OH)₃] colloidal encapsulation, inhibited byproduct formation, and guided the directional hydrolysis of Fe³⁺ into highly crystalline goethite. This technology provided a theoretical foundation and technical support for achieving efficient and clean iron removal in hydrometallurgical zinc smelting processes.

本研究报告了一种超声增强针铁矿工艺，用于深度去除硫酸锌溶液中的铁杂质。该方法利用超声空化效应直接诱导α-铁（III）氧化物氢氧化物（a-FeOOH）的形成，消除了对外界种子晶体的依赖。通过单因素实验对工艺参数进行优化。在超声功率为160 W、pH = 3.0、反应时间为80 min、过氧化氢（H2O2）用量为12 mL的条件下，铁的去除率达到99.72%，所得针铁矿渣的铁含量为30.72%，水含量为39.21%，比传统工艺提高了3.92%，水含量降低了11.05%。采用多尺度表征和密度泛函理论（DFT）计算来探讨其机理。DFT计算证实，在常规和超声条件下，α-FeOOH与SO42−形成双齿[吸附能（ΔE） =−6.161]和单齿（ΔE =−3.223）配体吸附构型。单齿结构具有较低的热力学稳定性，且极易解吸，有利于针铁矿的形成。电子顺磁共振分析表明，超声促进H2O2的裂解生成丰富的·OH自由基，加速了Fe2+的氧化动力学。超声破坏氢氧化铁[Fe(OH)3]的胶体包封，抑制副产物的生成，引导Fe3+定向水解成高结晶针铁矿。该技术为实现湿法炼锌过程高效、清洁除铁提供了理论基础和技术支持。

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引用次数: 0

Electrochemical mechanisms and performance regulation of ultrasonic-assisted zinc electrowinning 超声辅助锌电积的电化学机理及性能调控

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-06 DOI: 10.1016/j.ultsonch.2025.107705

Xiaowei Sheng , Guo Lin , Kun Zhang , Yinghui Gao , Jiayu Zhu , Shixing Wang , Tu Hu , Likang Fu , Linqing Dai , Hongying Xia , Yuanyuan Huang , Shiwei Li

Ultrasound-assisted zinc electrodeposition represents a promising strategy for process intensification, though its fundamental electrochemical mechanisms require deeper exploration. This study systematically elucidates the sonoelectrochemical mechanisms governing zinc electrodeposition through a multi-technique approach. The effects of ultrasound (40 kHz, 0–30 W) on interfacial transport, nucleation kinetics, and deposit formation were investigated using chronopotentiometry, electrochemical impedance spectroscopy, Tafel analysis, and chronoamperometry. Results demonstrate that ultrasound induces a mechanistic transition from progressive to instantaneous nucleation while substantially enhancing mass transfer—reducing the diffusion layer thickness and charge transfer resistance by 28 %. Optimal performance at 10 W ultrasonic power yielded a 9 % reduction in cell voltage and 13 % lower energy consumption. Morphological and structural analyses confirmed that ultrasound promotes denser, smoother deposits with refined grains and preferred (002) orientation. This work provides both mechanistic insights and experimental validation for ultrasound-assisted zinc electrodeposition, establishing a foundation for its application in energy-efficient zinc production.

超声辅助锌电沉积是一种很有前途的工艺强化策略，尽管其基本的电化学机制需要更深入的探索。本研究通过多技术手段系统地阐明了锌电沉积的声电化学机理。研究了超声（40 kHz, 0-30 W）对界面传输、成核动力学和沉积形成的影响，采用时间电位法、电化学阻抗谱法、塔菲尔分析法和时间电流法。结果表明，超声诱导了从渐进成核到瞬时成核的机制转变，同时大大增强了传质，使扩散层厚度和电荷传递电阻降低了28%。在10瓦超声功率下的最佳性能使电池电压降低9%，能耗降低13%。形态学和结构分析证实，超声促进致密、光滑的沉积物，具有精细的晶粒和优选的（002）取向。本研究提供了超声辅助锌电沉积的机理和实验验证，为超声辅助锌电沉积在节能锌生产中的应用奠定了基础。

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引用次数: 0

The machine learning assisted optimization of ultrasound-synergistic enzymatic extraction and comprehensive evaluation of polysaccharides from Saposhnikovia divaricata 三叶参多糖超声协同酶提工艺优化及综合评价

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-06 DOI: 10.1016/j.ultsonch.2025.107706

Zeyu Li , Qian Li , Chaogui Hu , Feng Yang , Fengxia Guo

Saposhnikovia divaricata (S. divaricata) is a common medicinal material with remarkable medicinal value, but there is limited research on its polysaccharides. This research employed ultrasound-synergistic enzymatic extraction to obtain polysaccharides, while leveraging response surface methodology (RSM) and support vector regression (SVR) models to optimize the extraction procedure. According to the SVR model, the optimal extraction conditions that led to a superior polysaccharide yield of 11.82 % included maintaining a solid-solvent ratio of 1:13 g/mL, conducting the process at an extraction temperature of 45 °C with 420 W of power, adjusting the pH to 4.5, extending the ultrasonic treatment to 35 min, and incorporating a 3 % enzyme dosage. Additionally, a comparative analysis of polysaccharides extracted through different methods assessed their physicochemical characteristics, structure, and antioxidant capacity. The entropy weight method was employed for a comprehensive evaluation of the different extraction techniques. In the final assessment, the ultrasound- synergistic enzymatic extraction emerged as the top-performing technique, achieving the highest composite score. Notably, the antioxidant efficacy was driven primarily by the levels of uronic acid, molecular weight and mannose. This research establishes the theoretical foundation and scientific rationale for the efficient extraction and bioactive application of S. divaricata polysaccharides (SDP).

菝葜（Saposhnikovia divaricata， S. divaricata）是一种具有显著药用价值的常见药材，但对其多糖的研究有限。本研究采用超声协同酶法提取多糖，并利用响应面法（RSM）和支持向量回归（SVR）模型对提取工艺进行优化。根据SVR模型，料液比为1:13 g/mL，提取温度为45℃，提取功率为420 W， pH为4.5，超声处理时间为35 min，酶投加量为3%，可使多糖得率达到11.82%。此外，通过不同方法提取的多糖进行比较分析，评估其物理化学特性，结构和抗氧化能力。采用熵权法对不同提取技术进行综合评价。在最后的评估中，超声-协同酶萃取成为表现最好的技术，获得了最高的综合得分。值得注意的是，抗氧化效果主要受糖醛酸、分子量和甘露糖含量的影响。本研究为高效提取和生物活性应用提供了理论基础和科学依据。

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引用次数: 0

Advanced extraction techniques for sustainable recovery of health-promoting compounds from carob leaves 从角豆叶中可持续回收促进健康化合物的先进提取技术

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-06 DOI: 10.1016/j.ultsonch.2025.107710

Simona Serio , Valentina Santoro , Anna Lisa Piccinelli , Rita Celano , Luca Rastrelli

Carob (Ceratonia siliqua) leaves (CSL) are an underutilized source of health-promoting compounds, including siliquapyranone, 1,2,3,6-tetragalloylglucose and myricitrin. CSL and its main compounds revealed remarkable antioxidant and hypoglycaemic potential. This study presents a systematic optimization of pressurized hot water extraction (PHWE) and probe-based ultrasound-assisted extraction (probe-UAE) as sustainable strategies for the recovery of CSL bioactive compounds. Using response surface methodology combined with UHPLC-UV profiling, the main parameters influencing extraction efficiency and compound stability were identified. Optimal PHWE (98 °C, three 5 min-cycles) and probe-UAE (ethanol 52 %, 100 g L^–1, 20 min) conditions ensured exhaustive recovery of target compounds with negligible formation of extraction artefacts (gallic acid and digalloylglucoses), preserving antioxidant and α-glucosidase inhibitory activities. Compared with conventional techniques, PHWE and probe-UAE demonstrated a low environmental footprint, reducing extraction time, solvent use and environmental impact, while improving extraction yield and extract quality. PHWE generated fully aqueous extracts suitable for direct application, whereas probe-UAE offered high energy efficiency and operational simplicity. These findings demonstrate the potential of green extraction techniques for the sustainable valorization of carob leaves, providing high-value bioactive extracts and supporting the development of healthy food products. This study offers novel insights into the exploitation of untapped plant biomasses and provides a practical approach for integrating green innovations into the food and nutraceutical sectors.

角豆（Ceratonia siliqua）叶片（CSL）是一种未充分利用的健康促进化合物的来源，包括硅吡喃酮，1,2,3,6-四烯基葡萄糖和杨梅三醇。CSL及其主要化合物显示出显著的抗氧化和降糖潜能。本研究提出了加压热水提取（PHWE）和基于探针的超声辅助提取（probe-UAE）作为可持续回收CSL生物活性化合物的策略的系统优化。采用响应面法结合UHPLC-UV分析，确定了影响提取效率和化合物稳定性的主要参数。最佳PHWE（98°C， 3个5 min循环）和探针- uae（乙醇52%，100 g L-1, 20 min）条件确保了目标化合物的彻底回收，萃取物（没食子酸和二烯丙基葡萄糖）的形成可以忽略，保持了抗氧化和α-葡萄糖苷酶抑制活性。与传统技术相比，PHWE和probe-UAE具有低环境足迹，减少了提取时间、溶剂用量和对环境的影响，同时提高了提取率和提取物质量。PHWE产生的全水萃取物适合直接应用，而probe-UAE提供了高能效和操作简单性。这些发现证明了绿色提取技术在角豆叶可持续增值、提供高价值生物活性提取物和支持健康食品开发方面的潜力。这项研究为开发未开发的植物生物量提供了新的见解，并为将绿色创新整合到食品和营养保健部门提供了实用的方法。

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引用次数: 0

Red cabbage anthocyanin-rich natural colorant: Optimization of ultrasound-assisted extraction, microencapsulation, bioaccessibility, and functional yogurt development 红甘蓝花青素天然着色剂：超声辅助提取、微胶囊化、生物可及性优化及功能性酸奶开发

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-04 DOI: 10.1016/j.ultsonch.2025.107702

Sumandeep Kaur , Amisha Rani , Reshma Thakur , Abhilasha Sharma , Kritika Kuksal , Aman Sharma , Arti Shivraj Nile , Shivraj Hariram Nile

Anthocyanins from red cabbage (Brassica oleracea var. capitata f. rubra) are promising natural pigments with notable health benefits, but their thermal and gastrointestinal instability limits functional food applications. This study employed ultrasound-assisted extraction (UAE) and spray-drying microencapsulation to enhance their stability, bioaccessibility, and functionality. Optimization using a Box–Behnken design (pH 3.0–5.0, 30–60 °C, 20–90 min, 0.025–0.05 g/mL solid–liquid ratio) identified optimal UAE conditions (pH 3.5, 45 °C, 55 min, 0.0375 g/mL), yielding 125.72 ± 0.83 mg/L anthocyanins. Freeze drying retained the highest anthocyanin content (129.02 ± 3.36 mg/L), while spray-drying with 10 % maltodextrin achieved excellent encapsulation efficiency (96.36 ± 0.80 %) and yield (99.40 %). FTIR confirmed the presence of phenolic groups, and SEM revealed spherical microcapsules (∼10.27 µm) with smooth surfaces. Encapsulation significantly improved thermal stability at 70 °C, reducing the degradation rate constant (0.00043 min⁻¹) and increasing half-life (1919.02 min), compared to non-encapsulated samples. During simulated digestion, bioaccessibility of encapsulated anthocyanins was lower in the oral (53.28 %) and intestinal (25.37 %) phases than free forms, but stability was enhanced. Antioxidant activity (DPPH: 66.90 %, ABTS: 71.76 %) and enzyme inhibition (α-amylase IC₅₀: 46.00 µg/mL, α-glucosidase IC₅₀: 51.51 µg/mL) indicated potent bioactivity. Cytotoxicity testing on HEK-293 cells showed > 90 % viability, confirming safety. Yogurt fortified with 3 % encapsulated powder received high sensory scores (8.30 ± 0.86), especially for color and taste. These findings validate the integrated UAE and encapsulation approach as a scalable method to stabilize red cabbage anthocyanins for functional food applications.

红甘蓝（Brassica oleracea变种. capitata f. rubra）中的花青素是一种很有前途的天然色素，具有显著的健康益处，但其热稳定性和胃肠道不稳定性限制了其在功能性食品中的应用。本研究采用超声辅助提取（UAE）和喷雾干燥微胶囊化来提高其稳定性、生物可及性和功能性。采用Box-Behnken设计优化（pH 3.0-5.0, 30-60°C, 20-90 min，料液比0.025-0.05 g/mL）确定了最佳的UAE条件（pH 3.5, 45°C, 55 min, 0.0375 g/mL），产花青素125.72±0.83 mg/L。冷冻干燥的花青素含量最高（129.02±3.36 mg/L）， 10%麦芽糊精喷雾干燥的包封率为96.36±0.80%，包封率为99.40%。FTIR证实了酚基的存在，SEM显示了表面光滑的球形微胶囊（~ 10.27µm）。与未封装的样品相比，封装显著提高了70°C时的热稳定性，降低了降解速率常数（0.00043 min-1），延长了半衰期（1919.02 min）。在模拟消化过程中，包被花青素在口腔（53.28%）和肠道（25.37%）阶段的生物可及性低于游离形式，但稳定性增强。抗氧化活性（DPPH: 66.90%, ABTS: 71.76%）和酶抑制活性（α-淀粉酶IC50: 46.00µg/mL， α-葡萄糖苷酶IC50: 51.51µg/mL）显示出较强的生物活性。细胞毒性试验显示HEK-293细胞存活率为90%以上，证实其安全性。添加3%胶囊化粉的酸奶感官评分较高（8.30±0.86），其中色、味评分最高。这些发现验证了综合UAE和封装方法作为一种可扩展的方法来稳定红甘蓝花青素的功能食品应用。

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引用次数: 0

From sonochemical synthesis to predictive modeling: Unraveling the antioxidant properties of La-doped CeO2 nanoparticles 从声化学合成到预测建模：揭示la掺杂CeO2纳米颗粒的抗氧化性能

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-04 DOI: 10.1016/j.ultsonch.2025.107704

Jorge L. Mejía-Méndez , Edwin E. Reza-Zaldívar , Diego E. Navarro-López , A. Sanchez-Martinez , O. Ceballos-Sanchez , Miguel Badillo , Angélica Lizeth Sánchez López , Miguel José Yacaman , Daniel A. Jacobo-Velázquez , Edgar R. López-Mena , Gildardo Sanchez-Ante

This study introduces a novel combination of sonochemical synthesis and machine learning (ML) modeling to analyze the effect of Lanthanum (La) doping on the biological properties of cerium oxide (CeO₂) nanoparticles with various La concentrations (0, 1, 5, and 10 at.%). Ultrasonic-assisted synthesis enabled La incorporation into the CeO₂ lattice, resulting changes in crystallinity, lattice parameters, and surface features. Detailed characterization confirmed successful doping and indicated stable nanoparticle suspensions with controlled size ranges. Sonochemical synthesis promoted the oxidation of Ce³⁺ to Ce⁴⁺. Biological testing revealed low cytotoxicity across various cell lines (HepG-2, 3 T3-L1, Caco-2, and U87) and increased antioxidant activity, especially in samples with 5 and 10 at.% La, which demonstrated improved free radical scavenging of DPPH and H₂O₂ radicals. Notably, advanced ML models—including Extremely Randomized Trees, random forest, Gradient Boosting, and LightGBM—enabled the prediction of antioxidant activity based on nanoparticle features, identifying antioxidant method, concentration, and chemical composition as key factors influencing biological effects. This combined experimental and data-driven approach not only clarifies the structure–activity relationships of La-doped CeO₂ nanoparticles but also emphasizes the significant potential of ML in designing and optimizing nanomaterials for biomedical applications. The combination of sonochemical synthesis and ML modeling provides a robust framework for accelerating nanomaterial development by minimizing trial-and-error experiments and providing mechanistic insights into their biological functions.

本研究引入了声化学合成和机器学习（ML）建模的新组合，以分析镧（La）掺杂对不同La浓度（0、1、5和10 at.%）氧化铈（CeO2）纳米粒子生物学特性的影响。超声辅助合成使La掺入到CeO2晶格中，从而改变了结晶度、晶格参数和表面特征。详细的表征证实了掺杂的成功，并表明纳米颗粒悬浮液在可控的尺寸范围内稳定。声化学合成促进了Ce3+氧化为Ce4+。生物学测试显示，多种细胞系（HepG-2、3 T3-L1、Caco-2和U87）的细胞毒性较低，抗氧化活性增加，特别是在5和10 at的样品中。% La，显示出对DPPH和H2O2自由基的清除能力。值得注意的是，先进的机器学习模型——包括极端随机树、随机森林、梯度增强和lightgbm——能够基于纳米颗粒特征预测抗氧化活性，确定抗氧化方法、浓度和化学成分是影响生物效应的关键因素。这种结合实验和数据驱动的方法不仅阐明了la掺杂CeO2纳米颗粒的结构-活性关系，而且强调了ML在设计和优化生物医学应用纳米材料方面的巨大潜力。声化学合成和ML建模的结合为加速纳米材料的开发提供了一个强大的框架，通过最大限度地减少试错实验，并提供对其生物学功能的机理见解。

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Exploring the links between sonochemistry and sonomechanobiology 探索声化学和声机械生物学之间的联系

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry

Pub Date : 2025-12-03 DOI: 10.1016/j.ultsonch.2025.107697

Timothy J. Mason , Mircea Vinatoru

Sonomechanobiology concerns the ways in which vibrational energy can stimulate biological cells. It is a multi-disciplinary subject involving contributions from fields including chemistry, food science, microbiology, medicine and physics. Early studies of the effects of ultrasound on living tissue can be traced back to the 1920′s but in those days, without the aid of modern specialised equipment, detailed explanations were not possible. The more recent work on the stimulation of cells has been of particular interest to microbiologists and medical physicists while sonochemists have not really been involved. But sonochemistry has an important part to play in the developing subject of sonomechanobiology and this opinion paper will re-examine those early studies which can be considered to be precursors to both sonomechanobiology and sonochemistry.

声力学关注的是振动能量刺激生物细胞的方式。它是一门多学科的学科，涉及化学、食品科学、微生物学、医学和物理学等领域的贡献。关于超声波对活组织影响的早期研究可以追溯到20世纪20年代，但在那个时候，没有现代专业设备的帮助，详细的解释是不可能的。最近，微生物学家和医学物理学家对刺激细胞的工作特别感兴趣，而声化学家还没有真正参与其中。但是声化学在声机械生物学的发展中起着重要的作用，本文将重新审视那些可以被认为是声机械生物学和声化学先驱的早期研究。

引用次数: 0