微藻作为创新的矿物质和营养载体；在土壤改良和动物营养方面的潜在应用

IF 3.5 2区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Food and Bioproducts Processing Pub Date : 2025-05-12 DOI:10.1016/j.fbp.2025.05.004

María del Rosario Martínez-Macias , Omar Nateras-Ramírez , Dalia Isabel Sánchez-Machado , Jaime López-Cervantes , Joel Arias-Martínez , Luz Angélica Ávila-Villa , Maria Magdalena Armendariz-Ontiveros , Jael Teresa de Jesús Quintero-Vargas , Yedidia Villegas-Peralta

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引用次数: 0

摘要

评价了青绿纳米藻（Nannochloropsis oculata）、黄斑卟啉（Porphyridium cruentum）和马尾藻（Sargassum spp）等生物质对铜的吸附能力，以及它们在动物营养、生物施肥和修复中的应用。直接成分分析显示,n . oculata蛋白质最高(21.54 ±1.04  %)和脂质含量(24.70 ±0.23  %),而海藻种虫害展出的碳水化合物含量最高(56.21 ±4.59  %)。油棕的灰分含量明显较高，显示出丰富的矿物剖面。在最佳吸附条件下,海藻种虫害达到最高的铜²⁺吸附(87.33 ±0.4  %,145.55 毫克 g⁻¹),其次是n oculata(63.04 ±0.55  %,105.06 毫克 g⁻¹)和p . cruentum(59.01 ±0.1  %,98.35 毫克 g⁻¹)。FTIR分析证实羧基和羟基等官能团是参与Cu 2 +结合的活性位点。动力学研究表明，Cu 2 +在所有生物质上的吸附都遵循伪二阶模型（R²≈0.999），表明Cu 2 +的吸附机制为化学吸附。所有物种均表现出快速稳定的铜吸收率，98.19 ± 0.70 %（124.54 ± 0）。92 毫克 g−1)n . oculata海藻spp,显示初始吸收48.57 ±0.18  %(60.72 ±0.22  毫克 克−1),其次是解吸。P. cruentum的吸附量为56.82 ± 0.02 %（71.91 ± 0.66 mg g⁻¹）。等温线模型显示，Cu 2 +在马尾藻中的吸附符合Langmuir模型（R²= 0.9906），为单层吸附。N. oculata符合Freundlich模型（R²= 0.9629），表明其存在多相多层吸附过程，对Cu²⁺具有较强的亲和力。cruentum与Temkin等温线吻合，表明存在物理吸附。青芸苔以其高营养价值和稳定的铜潴留而著称，适合在饲料和土壤中控制矿物质的输送。马尾藻具有较高的吸附量和丰度，在生物肥料和土壤修复方面具有广阔的应用前景。cruentum可用于需要逐渐释放养分和补充功能的系统。

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Microalgae as innovative mineral and nutrient carriers; potential applications in soil improvement and animal nutrition

The copper adsorption capacity from Nannochloropsis oculata, Porphyridium cruentum, and Sargassum spp., biomasses was evaluated for applications in animal nutrition, biofertilization, and remediation. Proximate composition analysis revealed that N. oculata had the highest protein (21.54 ± 1.04 %) and lipid content (24.70 ± 0.23 %), while Sargassum spp. exhibited the highest carbohydrate content (56.21 ± 4.59 %). Ash content was notably higher in P. cruentum, indicating a rich mineral profile. Under optimal adsorption conditions, Sargassum spp. achieved the highest Cu²⁺ adsorption (87.33 ± 0.4 %, 145.55 mg g⁻¹), followed by N. oculata (63.04 ± 0.55 %, 105.06 mg g⁻¹) and P. cruentum (59.01 ± 0.1 %, 98.35 mg g⁻¹). FTIR analysis confirmed functional groups such as carboxyl and hydroxyl as active sites involved in Cu²⁺ binding. Kinetic studies revealed that Cu²⁺ adsorption by all biomasses followed a pseudo-second-order model (R² ≈ 0.999), indicating a chemisorption mechanism. All species demonstrated a fast and stable copper uptake, 98.19 ± 0.70 % (124.54 ± 0. 92 mg g⁻¹) in N. oculata, Sargassum spp., showed initial uptake of 48.57 ± 0.18 % (60.72 ± 0.22 mg g⁻¹), followed by desorption. P. cruentum presented a gradual adsorption trend with 56.82 ± 0.02 % (71.91 ± 0.66 mg g⁻¹) at equilibrium. Isotherm modeling revealed that Cu²⁺ adsorption in Sargassum spp. fit the Langmuir model (R² = 0.9906), indicating monolayer adsorption. N. oculata followed the Freundlich model (R² = 0.9629), suggesting a heterogeneous, multilayer adsorption process with a strong affinity for Cu²⁺. P. cruentum matched the Temkin isotherm, indicative of physisorption. N. oculata stands out for its high nutritional value and stable copper retention, suitable for controlled mineral delivery in feed and soil. Sargassum spp., with its high adsorption capacity and abundance, is promising for biofertilizer and remediation applications. P. cruentum may serve in systems requiring gradual nutrient release and functional supplementation.

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来源期刊

Food and Bioproducts Processing 工程技术-工程：化工

CiteScore

9.70

自引率

4.30%

发文量

115

审稿时长

24 days

期刊介绍： Official Journal of the European Federation of Chemical Engineering: Part C FBP aims to be the principal international journal for publication of high quality, original papers in the branches of engineering and science dedicated to the safe processing of biological products. It is the only journal to exploit the synergy between biotechnology, bioprocessing and food engineering. Papers showing how research results can be used in engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in equipment or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of food and bioproducts processing. The journal has a strong emphasis on the interface between engineering and food or bioproducts. Papers that are not likely to be published are those: • Primarily concerned with food formulation • That use experimental design techniques to obtain response surfaces but gain little insight from them • That are empirical and ignore established mechanistic models, e.g., empirical drying curves • That are primarily concerned about sensory evaluation and colour • Concern the extraction, encapsulation and/or antioxidant activity of a specific biological material without providing insight that could be applied to a similar but different material, • Containing only chemical analyses of biological materials.