Biomass & Bioenergy最新文献

Experimental study on the coupling effects of feedstock properties and catalyst type on the distribution of phosphorus and nitrogen during hydrothermal conversion of municipal sewage sludge into liquid biofuels 城市污水污泥水热转化为液体生物燃料过程中，原料性质和催化剂类型对磷氮分布耦合效应的实验研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-13 DOI: 10.1016/j.biombioe.2025.108833

Wioleta Basa , Magdalena Pankiewicz-Sperka , Aleksandra Strugała-Wilczek , Donghai Xu , Peigao Duan , Botian Hao , Yuanyuan Wang , Lijian Leng , Le Yang , Liangliang Fan , Krzysztof Kapusta

The role of catalysts in the hydrothermal liquefaction (HTL) process has already been established in the literature, but it is largely considered in the context of process efficiency and bio-oil quality, without attempting to determine their effect on the redistribution of some essential biogenic elements. The study involved HTL batch conversion of two selected municipal sewage sludge samples (MSS1 and MSS2) of different origin and characteristics. The experimental campaign involved 12 HTL runs for each MSS. Both homogeneous catalysts, i.e. Na₂CO₃, Li₂CO₃, K₂CO₃ and Ba(OH)₂ and selected heterogeneous catalysts, i.e. Fe₂O_3, CeO_2, NiO/MoO₃/Al₂O₃ (Ni-Mo), MoS₂, Ni/NiO/Al₂O₃ (Ni-Ni), SnO₂ and FeS were used in the study. HTL process was executed under subcritical conditions (350 °C) for a 30 min residence time and in an inert atmosphere of nitrogen. Investigating the coupling effects of feedstock compositions and catalyst type on the distribution and migration pathways of phosphorus (P) and nitrogen (N) into liquid (bio-oil), solid (char) and aqueous HTL fractions was the main objective of the study. The results confirmed almost complete migration of P into solids (94.62–99.51 % for MSS1 and 96.04–99.92 % for MSS2) and, to a large extent, migration of N into the aqueous phase (76.99–82.47 % for MSS1 and 68.07–77.86 % for MSS2) over the entire range of the catalysts used. The coupling effects of the HTL feedstock and catalyst on the distribution of the studied biogenic elements were proven.

催化剂在水热液化（HTL）过程中的作用已经在文献中确立，但它主要是在工艺效率和生物油质量的背景下考虑的，而没有试图确定它们对一些必需生物源元素再分配的影响。本研究选取了两种不同来源和特征的城市污水污泥样品（MSS1和MSS2）进行HTL批量转化。实验活动包括为每个MSS运行12次html。采用均相催化剂Na2CO3、Li2CO3、K2CO3和Ba(OH)2，以及非均相催化剂Fe2O3、CeO2、NiO/MoO3/Al2O3 （Ni- mo）、MoS2、Ni/NiO/Al2O3 （Ni-Ni）、SnO2和FeS。HTL工艺在亚临界条件下（350°C）在氮气惰性气氛中进行30分钟停留时间。研究原料组成和催化剂类型对磷(P)和氮(N)在液体（生物油）、固体（炭）和水相HTL馏分中的分布和迁移途径的耦合影响是本研究的主要目的。结果证实，在使用的所有催化剂中，P几乎完全迁移到固体中（MSS1为94.62 ~ 99.51%，MSS2为96.04 ~ 99.92%），N在很大程度上迁移到水相中（MSS1为76.99 ~ 82.47%，MSS2为68.07 ~ 77.86%）。证实了HTL原料和催化剂的耦合作用对所研究的生物源元素的分布有影响。

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引用次数: 0

Evaluating Lemna minor for bioethanol production and bioremediation of petrochemical wastewater 柠檬酸对生物乙醇生产及石化废水生物修复的影响

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-13 DOI: 10.1016/j.biombioe.2025.108826

Fozia Shafiq , Ihsan ud din , Arif Ali Khattak , Muhammad Afzal

The increasing cost and scarcity of fossil fuels necessitate exploring alternative energy sources, and bioethanol has emerged as a significant transportation fuel on a global scale. However, its reliance on food crops has sparked controversy. Lemna minor presents a novel solution that provides a sustainable feedstock for bioethanol production without competing with food crops. In this study, L. minor samples were collected and cultivated in a Steinberg growth medium. Rich in starch, L. minor was used as a bioethanol feedstock and optimized through α-amyloglucosidase pretreatment to enhance sugar release and ethanol production. Nutritional analysis revealed high carbohydrate (43.65 ± 0.56 %), protein content (27 ± 1.2 %), and low moisture (8.35 ± 0.86 %), positioning L. minor as a promising biofuel resource that can adapt to harsh conditions. Its mineral-rich ash (26.2 ± 1.32 %) suggests phytoremediation potential, and crude lipids (4.80 ± 0.38 %) hinted at its potential use in biodiesel production. Pretreatment methods, including alkali and Acid assisted by enzymes, showed improved sugar yields. Saccharomyces cerevisiae fermentation highlighted the effectiveness of enzyme-assisted methods in achieving higher bioethanol conversion rates. FTIR analysis and SEM images confirmed structural changes induced by pretreatments, supporting their efficacy. This study uniquely investigates Lemna minor cultivated in petrochemical refinery wastewater from Makorhi and Gurguri, demonstrating its dual capacity for bioethanol production and wastewater bioremediation.

化石燃料的成本不断增加和稀缺，使探索替代能源成为必要，生物乙醇已成为全球范围内重要的运输燃料。然而，中国对粮食作物的依赖引发了争议。小柠檬草提出了一种新的解决方案，为生物乙醇生产提供了一种可持续的原料，而不会与粮食作物竞争。在本研究中，收集L. minor样品并在Steinberg培养基中培养。以含丰富淀粉的小乳香为原料，通过α-淀粉葡萄糖苷酶预处理，提高了其糖的释放量和乙醇的产量。营养分析表明，该植物碳水化合物含量高（43.65±0.56%），蛋白质含量高（27±1.2%），水分含量低（8.35±0.86%），是一种很有前途的生物燃料资源，可以适应恶劣的环境。其富含矿物质的灰分（26.2±1.32%）表明其具有植物修复潜力，粗脂（4.80±0.38%）暗示其在生物柴油生产中的潜在应用。碱预处理和酶辅助酸预处理均能提高糖的产率。酿酒酵母发酵强调了酶辅助方法在实现更高生物乙醇转化率方面的有效性。FTIR分析和SEM图像证实了预处理引起的结构变化，支持其有效性。本研究以马科里和古尔古里的石化炼化废水为研究对象，研究了其生物乙醇生产和废水生物修复的双重能力。

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引用次数: 0

Effect of phenolic modification of alkali lignin on cellulase recovery 碱木质素酚改性对纤维素酶回收率的影响

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-13 DOI: 10.1016/j.biombioe.2025.108822

Hongyan Mou, Xinyue Zhao, Jin Huang

Lignin remains a primary obstacle to efficient enzymatic hydrolysis, largely due to its strong interaction with cellulase. In this study, lignin from cotton stalks was prepared and phenol-modified to explore its interaction with cellulase. The cellulose adsorption capacities were observed from lignin resorcinol (LigR) and lignin pyrogallol (LigP), which increased significantly, and LigP had the fastest adsorption rate. Moreover, pH adjustment was observed to facilitate the separation of adsorbed enzymes from the lignin-enzyme complex, and the enzymatic hydrolysis conversion of filter paper mediated by adsorbed cellulase could reach about 81.97 %. The adsorption differences are related to the changes of lignin in Ph-OH content and reduced S/G ratio by phenolation. The results of this study are supposed to guide a potential route for the high-value utilization of lignin application for cellulase recovery.

木质素仍然是有效的酶水解的主要障碍，很大程度上是由于它与纤维素酶的强相互作用。本研究以棉花秸秆为原料制备木质素，并对其进行酚改性，研究其与纤维素酶的相互作用。木质素间苯二酚（LigR）和木质素邻苯三酚（LigP）对纤维素的吸附量显著增加，其中LigP的吸附速率最快。调节pH有利于吸附酶与木质素-酶复合物的分离，吸附纤维素酶介导的滤纸酶解转化率可达81.97%左右。吸附差异与木质素在Ph-OH含量的变化和酚化作用降低的S/G比有关。本研究结果为木质素在纤维素酶回收中的高价值利用提供了一条潜在的途径。

引用次数: 0

Modulation of acetyl-CoA pool and fatty acid metabolism for production of (−)-α-bisabolol in metabolically engineered Yarrowia lipolytica 代谢工程解脂耶氏菌乙酰辅酶a库和脂肪酸代谢对(−)-α-双abolol生产的调节

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-13 DOI: 10.1016/j.biombioe.2025.108834

Yong-Ha Seo , Ye-Gi Lee , Dohyoung Kim , Seung-Oh Seo , Yong-Cheol Park

(−)-α-Bisabolol is a sesquiterpene with a potential of biofuel and also natural compound with anti-inflammatory and skin-whitening properties, commercially produced by solvent extraction from the Brazilian candeia tree and chamomile. This study aimed at engineering an oleaginous yeast of Yarrowia lipolytica for sustainable production of (−)-α-bisabolol from renewable glucose. A codon-optimized MrBBS gene encoding (−)-α-bisabolol synthase from German chamomile was introduced into Y. lipolytica, resulting in the construction of the initial strain (yM) with 22.1 mg/L of (−)-α-bisabolol producing activity. To improve (−)-α-bisabolol production, the mevalonate pathway providing (−)-α-bisabolol precursors was fortified by overexpressing a truncated HMG-CoA reductase and acetyl-CoA thiolase. The intracellular acetyl-CoA pool used as the starting material of (−)-α-bisabolol was expanded by overexpressing ATP-citrate lyase isozymes. The resulting strain of yMtHEA12 produced 681.2 mg/L (−)-α-bisabolol from glucose in batch culture, which was 35.5 times higher than the yM strain. To redirect carbon flux from the native fatty acid biosynthetic pathway which competes with (−)-α-bisabolol synthesis, cerulenin was applied as an inhibitor of fatty acid synthase. Finally, a fed-batch culture of the yMtHEA12 strain through three times addition of glucose and cerulenin supplementation resulted in 1.09 g/L of (−)-α-bisabolol concentration, which was 49.4 times higher than that of the yM strain in the batch culture. Conclusively, Y. lipolytica is a potent microbial workhorse for the sustainable terpene production such as (−)-α-bisabolol, and metabolic engineering strategies optimizing the mevalonate pathway, enhancing the acetyl-CoA pool, and inhibiting fatty acid biosynthesis were effective to enhance (−)-α-bisabolol bioproduction.

（−）-α-Bisabolol是一种倍半萜，具有生物燃料的潜力，也是一种具有抗炎和皮肤美白特性的天然化合物，由巴西candiia树和洋甘菊溶剂萃取而成。本研究旨在设计一种聚脂耶氏菌产油酵母，用于从可再生葡萄糖中持续生产(−)-α-双abolol。将德国洋甘菊中编码(−)-α-bisabolol合成酶的MrBBS基因引入到脂肪酶Y. lipolytica中，构建了产(−)-α-bisabolol合成酶活性为22.1 mg/L的初始菌株（yM）。为了提高(−)-α-双abolol的生成，通过过表达截断的HMG-CoA还原酶和乙酰辅酶a硫酶来强化提供(−)-α-双abolol前体的甲羟戊酸途径。作为(−)-α-双abolol起始物质的胞内乙酰辅酶a池通过过表达atp -柠檬酸裂解酶同工酶而扩增。在批量培养中，所得菌株yMtHEA12从葡萄糖中产生681.2 mg/L(−)-α-双abolol，比yM菌株高35.5倍。为了改变与(−)-α-双abolol合成相竞争的天然脂肪酸生物合成途径的碳通量，研究人员将蓝草蛋白作为脂肪酸合成酶抑制剂。最后，通过添加3次葡萄糖和添加3次蓝绿蛋白，对yMtHEA12菌株进行间歇培养，其(−)-α-双abolol浓度为1.09 g/L，比间歇培养的yM菌株高49.4倍。综上所述，聚脂Y. lipolytica是持续生产(−)-α-双abolol等萜烯的有效微生物，而优化甲羟戊酸途径、增强乙酰辅酶a库和抑制脂肪酸生物合成的代谢工程策略可以有效地促进(−)-α-双abolol的生物生产。

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引用次数: 0

Myceliophthora thermophila: A nature-borne biotechnologist converting agricultural biomass into renewable energy and bioproducts 嗜热菌丝霉：一种将农业生物质转化为可再生能源和生物产品的自然生物技术专家

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-13 DOI: 10.1016/j.biombioe.2025.108795

Bijender Singh , Shruti Ahlawat , Partiksha Yadav , Anu , Astha Chhillar , Davender Singh

Agricultural residues, rich source of cellulose and hemicellulose, are generated in huge amount during harvesting of crops. Bioconversion of this solid lignocellulosic biomass to value-added products with the help of microbes may provide an alternate source of renewable energy and other products. Among microorganisms, thermophilic fungi are most promising because they have to adapt to their natural habitat by developing a complex system. Myceliophthora thermophila is a remarkably powerful lignocellulolytic fungus that generates an array of enzymes implicated in the break-down of this biomass. The biochemical, genomic, and secretome analyses of this fungus have revealed an elaborate enzymatic repertoire that includes hemicellulases, cellulases, laccases, and other enzymes having auxiliary activities, thereby including almost all the known CAZy families. These enzymes are useful in complete deconstruction of the lignocellulosic biomass. The mould is amenable to grow efficiently in submerged and solid-state fermentations using agro-residues and is efficient in biomass degradation at moderate as well as at high temperatures because of high thermal stability of these enzymes. Thermostable enzymes of M. thermophila require lesser time for saccharification of various plant-based polysaccharides in comparison to hydrolytic enzymes from mesophilic fungi. Also, the fungus secretes various important biomolecules of multifarious biotechnological applications using lignocellulose as substrate.

农作物在收获过程中产生大量的农业残留物，是纤维素和半纤维素的丰富来源。在微生物的帮助下，这种固体木质纤维素生物质的生物转化为增值产品可能提供可再生能源和其他产品的替代来源。在微生物中，嗜热真菌是最有前途的，因为它们必须通过发展复杂的系统来适应自然栖息地。嗜热丝霉是一种非常强大的木质纤维素分解真菌，它产生一系列与生物质分解有关的酶。对这种真菌的生化、基因组和分泌组学分析揭示了一种复杂的酶库，包括半纤维素酶、纤维素酶、漆酶和其他具有辅助活性的酶，从而包括几乎所有已知的CAZy家族。这些酶在木质纤维素生物质的完全分解中是有用的。由于这些酶的高热稳定性，该霉菌可以在利用农业残留物的水中和固态发酵中有效地生长，并且在中等和高温下有效地进行生物质降解。与嗜热真菌的水解酶相比，嗜热分枝杆菌的热稳定酶对各种植物多糖的糖化需要更少的时间。此外，真菌以木质纤维素为底物分泌各种重要的生物分子，具有多种生物技术应用。

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引用次数: 0

Valorization of Vicia faba L. peel ash as a novel heterogeneous green catalyst for biodiesel production from waste cooking oil 蚕豆皮灰作为新型多相绿色催化剂在废食用油生产生物柴油中的应用研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-12 DOI: 10.1016/j.biombioe.2025.108817

Abdelrahman B. Fadhil , Hajir M. Al-Khayat , Marwa H. Altamer

Heterogeneous catalysts developed from biomass waste provide sustainable, non-toxic, and recyclable alternatives. The use of agricultural solid waste to produce eco-friendly catalysts promotes sustainability and effective waste management. Therefore, in this context, Vicia faba L. peels (VFPs) shell-derived ash was evaluated as a novel base catalyst for the transesterification of waste cooking oil with methanol to produce biodiesel. The VFPs were calcined at different temperatures (550–750 °C) for various durations (1–3 h) and at different rates of heating (10–50 °C/min) to yield the ideal ash catalyst for the transesterification process of waste cooking oil. Optimizing factors affecting biodiesel output, including catalyst dosage, temperature, time, and the alcohol-to-oil molar ratio, were explored. Calcination of the VFPs at 650 °C for 2 h at a 10 °C/min heating rate produced the best ash catalyst. Its basicity was derived from its high content of K₂O, CaO, MgO, and Na₂O. The highest output of biodiesel (98.50 %, 100 % purity) was produced at 60 °C for 90 min using 4.0 wt% of the ash catalyst and a 9:1 methanol: oil molar ratio. The VFPs-derived ash catalyst exhibited an acceptable catalytic activity even after 6 cycles of reuse, suggesting biodiesel sustainability and adding value to solid biowastes.

从生物质废弃物中开发的多相催化剂提供了可持续、无毒和可回收的替代品。利用农业固体废物生产环保催化剂促进可持续性和有效的废物管理。因此，本研究对蚕豆皮（VFPs）壳衍生灰分作为废食用油与甲醇酯交换制备生物柴油的新型碱催化剂进行了评价。在不同温度（550 ~ 750℃）、不同时间（1 ~ 3 h）和不同加热速率（10 ~ 50℃/min）下对vfp进行煅烧，得到了废食用油酯交换反应的理想灰分催化剂。考察了催化剂用量、温度、时间、醇油摩尔比等因素对生物柴油产量的影响。在650℃下，以10℃/min的加热速率煅烧2 h，得到最好的灰分催化剂。其碱性来源于其高含量的K2O、CaO、MgO和Na2O。使用4.0 wt%的灰分催化剂和9:1的甲醇：油摩尔比，在60℃、90 min的条件下，生物柴油的最高产量（98.50%，纯度100%）被生产出来。vfp衍生的灰分催化剂即使在重复使用6次后也表现出可接受的催化活性，表明生物柴油的可持续性和固体生物废物的附加值。

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引用次数: 0

Prediction of wet basis moisture content of biomass during drying using artificial neural networks 利用人工神经网络预测生物质干燥过程中的湿基水分含量

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-12 DOI: 10.1016/j.biombioe.2025.108695

Júlio César Rocha Montagnani , Alfredo Bonini Neto , Borja Velázquez Martí , Carolina dos Santos Batista Bonini

Biomass drying is a key stage in the energy conversion chain, affecting efficiency, combustion stability, and overall performance. Due to nonlinear interactions among variables such as temperature, air velocity, moisture, and time, accurately predicting drying behavior is challenging. Artificial neural networks (ANNs) offer an effective data-driven approach for modeling and controlling such complex thermal processes. This study employs a Multilayer Perceptron (MLP) to predict the moisture content of biomass wood chips during convective drying with heated air, using 4,333 experimental samples including mass, moisture, temperature, air velocity, time, and water removal rates. The dataset underwent thorough preprocessing, including outlier removal, normalization, and verification of consistency across experimental measurements, ensuring high-quality inputs for training. After data cleaning and normalization, 90 % of the samples were used for training, and 5 % for validation and testing, respectively. The network architecture consisted of 11 input neurons, 15 hidden neurons with the hyperbolic tangent activation function, and 1 output neuron with a linear function. The selection of the topology was guided by preliminary sensitivity analyses to optimize predictive accuracy while avoiding overfitting. Training was performed using backpropagation in MATLAB. The model achieved a mean squared error (MSE) of approximately 0.0963 and a Pearson correlation coefficient greater than 0.9 in all phases, indicating that the network effectively captured the complex nonlinear relationships between drying parameters and moisture content. The robustness of the model was confirmed by consistent performance across validation and test datasets, demonstrating high accuracy and strong potential for industrial application in biomass drying optimization.

生物质干燥是能量转换链中的关键阶段，影响效率、燃烧稳定性和整体性能。由于温度、风速、湿度和时间等变量之间的非线性相互作用，准确预测干燥行为具有挑战性。人工神经网络（ann）为这种复杂的热过程建模和控制提供了有效的数据驱动方法。本研究采用多层感知器（Multilayer Perceptron， MLP）预测生物质木屑在加热空气对流干燥过程中的水分含量，使用4333个实验样本，包括质量、水分、温度、风速、时间和除水率。数据集经过了彻底的预处理，包括异常值去除、归一化和验证实验测量的一致性，以确保训练的高质量输入。数据清洗和归一化后，90%的样本用于训练，5%用于验证和测试。网络结构由11个输入神经元、15个具有双曲正切激活函数的隐藏神经元和1个具有线性函数的输出神经元组成。通过初步的灵敏度分析来指导拓扑的选择，以优化预测精度，同时避免过拟合。在MATLAB中使用反向传播进行训练。模型各阶段的均方误差（MSE）约为0.0963，Pearson相关系数大于0.9，表明该网络有效捕获了干燥参数与水分含量之间复杂的非线性关系。通过验证和测试数据集的一致性能，证实了该模型的稳健性，显示了高精度和在生物质干燥优化方面的强大工业应用潜力。

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引用次数: 0

The influence of potassium ions on CuMgAlOx catalysts during hydrodeoxygenation of biomass pyrolysis oil 生物质热解油加氢脱氧过程中钾离子对CuMgAlOx催化剂的影响

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-12 DOI: 10.1016/j.biombioe.2025.108746

Zhongxi Jiang , Mingyue Yang , Xiaowei Bai , Haochen Yang , Zhenghua Dai , Yunpeng Zhao , Jian Li

Hydrodeoxygenation (HDO) effectively reduces oxygen content and enhances fuel quality in biomass pyrolysis oil (bio-oil), though catalyst sensitivity to impurities - particularly potassium ions (K⁺) absorbed during biomass growth - remains understudied. This investigation systematically examines K⁺'s impact on HDO product distribution and fuel properties using CuMgAlO_x catalysts. Experimental results demonstrate that under optimal conditions (360 °C, 2 h), the K⁺-free system increased the higher heating value (HHV) from 25.6 MJ/kg to 32.9 MJ/kg, accompanied by significant reduction of oxygenated compounds (phenols, ketones) and a left-shifted boiling point curve. K⁺ introduction suppressed alcohol formation while increasing ester content (HHV decreased to 30.4 MJ/kg), concurrently hindering light fraction conversion of heavy components. Mechanistic studies employing model compounds suggest that K⁺ may alter deoxygenation pathways through dual mechanisms: (1) facilitating the dehydration-condensation of carboxyl/carbonyl groups to form macromolecular esters, and (2) enhancing the hydrogenation of aromatic hydroxyl groups to produce cyclohexanol intermediates.

加氢脱氧（HDO）有效地降低了生物质热解油（生物油）中的氧含量，提高了燃料质量，尽管催化剂对杂质的敏感性——特别是在生物质生长过程中吸收的钾离子（K+）——仍有待进一步研究。本研究使用CuMgAlOx催化剂系统地考察了K+对HDO产品分布和燃料性能的影响。实验结果表明，在最佳条件下（360°C, 2 h），无K+体系的高热值（HHV）从25.6 MJ/kg提高到32.9 MJ/kg，同时含氧化合物（酚类，酮类）显著减少，沸点曲线左移。K+的引入抑制了醇的生成，同时提高了酯含量（HHV降至30.4 MJ/kg），同时阻碍了重组分轻馏分的转化。利用模型化合物进行的机理研究表明，K+可能通过双重机制改变脱氧途径：(1)促进羧基/羰基的脱水缩合形成大分子酯；(2)促进芳香羟基的加氢生成环己醇中间体。

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引用次数: 0

LCA studies of fruit and vegetables production, storage and transportation using different packagings in consideration of food waste and energy consumption LCA研究在考虑食物浪费和能源消耗的情况下，使用不同包装的水果和蔬菜的生产、储存和运输

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-12 DOI: 10.1016/j.biombioe.2025.108702

Si Gao , Pinqiao Ren , Juanjuan Yao , Hui Zhou , Mathias Gustavsson , Chunfei Wu

Packaging significantly affects the loss and waste rate of fresh fruit and vegetables (FV), and thus the environmental impact. The usage of reusable plastic crate (RPC) can reduce food loss and waste (FLW), energy consumption, and thus the relevant environmental impact. However, studies combining FV and all these considerations are limited. This article applies life cycle assessment (LCA), from farm to store shelf, to evaluate the environmental impact of FV and their packaging, including Global Warming Potential (GWP), Freshwater Eutrophication Potential (EP), Freshwater Ecotoxicity Potential (FETP) and Water consumption Potential (WCP). It shows that the RPC usage can significantly reduce environmental impacts. Considering the food loss and waste reduction and energy optimisation brought by RPC usage, RPC usage can reduce GWP increase by 32.36 %–50.38 % as compared to cardboard (CB) packaging, FETP by 3.1 %–16.8 %, EP by 1.9 %–13.4 % and WCP by 3.4 %–16.9 %. The most notable reduction in GWP and FETP is observed for cabbage among the selected FV due to the highest loss rate. When combining food and packaging two life cycles together, the RPC usage can reduce GWP by 4.50 %–16.61 % compared to CB, . Electricity and FLW rate are identified as highly sensitive factors to total environmental impact, while electricity and fertilizer demonstrated a high sensitivity for GWP and FETP, respectively. The study shows that RPC has coupling advantages over CB in terms of indirect and direct impacts on GHG emissions and other environmental impacts. The results support a further deployment of RPC as a means to reduce the environmental influence and waste.

包装显著影响新鲜水果和蔬菜（FV）的损耗和浪费率，从而影响环境影响。使用可重复使用的塑料板条箱（RPC）可以减少食物损失和浪费（FLW），能源消耗，从而减少相关的环境影响。然而，结合FV和所有这些考虑因素的研究是有限的。本文运用生命周期评价（LCA）方法，从养殖场到货架，对FV及其包装的环境影响进行了评价，包括全球变暖潜能值（GWP）、淡水富营养化潜能值（EP）、淡水生态毒性潜能值（FETP）和水消耗潜能值（WCP）。结果表明，使用RPC可以显著减少对环境的影响。考虑到RPC的使用所带来的食物损失和浪费的减少以及能源的优化，与硬纸板（CB）包装相比，RPC的使用可以减少全球变暖潜能值增加32.36% - 50.38%，FETP减少3.1% - 16.8%，EP减少1.9% - 13.4%，WCP减少3.4% - 16.9%。白菜的GWP和FETP的降低最为显著，因为它的损失率最高。当将食品和包装两个生命周期结合在一起时，RPC的使用与CB相比可以减少4.50% - 16.61%的全球变暖潜能值。电力和FLW率是总环境影响的高度敏感因子，而电力和肥料分别对GWP和FETP表现出高度敏感。研究表明，RPC在对温室气体排放和其他环境影响的间接和直接影响方面都比CB具有耦合优势。结果支持进一步部署RPC作为减少环境影响和浪费的一种手段。

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引用次数: 0

Catalytic conversion of glucose into formic acid over a double vanadium capped Keggin type polyoxometalate under mild conditions 在温和条件下，双钒盖盖Keggin型多金属氧酸盐催化葡萄糖转化为甲酸

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2025-12-12 DOI: 10.1016/j.biombioe.2025.108799

Lu Chen , Jing-Jing Ji , Bao-Li Fei , Xiang Mei

A double vanadium capped Keggin type polyoxometalate (POM) [H₂N(C₂H₄)₂NH₂]₄(H₃O) [PMo₂^ⅤMo₆^ⅥV₄^ⅣO₄₀-(V^ⅣO)₂]·H₂O (CNPMo₈V₆) was firstly explored for the catalytic oxidation of glucose into formic acid (FA) with H₂O₂ on the conditions of no additional energy supply and alkaline free at room temperature. Under the optimum conditions, the rate of glucose conversion, the yield of FA and the carbon selectivity were 87.1 %, 45.2 % and 65.6 %, respectively. Furthermore, the CNPMo₈V₆/H₂O₂ system had comparable oxidation efficiencies for the other sugars including fructose, D-mannose, xylose and L-arabinose. CNPMo₈V₆ lost certain catalytic activity after first cycle usage. The advantage of this work is that a easy prepared heterogeneous CNPMo₈V₆ with accurate structure exhibited promising catalytic activity for glucose oxidation by H₂O₂ under mild conditions without the help of any additives. The disadvantage of this work is that the reusability performance of CNPMo₈V₆ was not satisfied. The novelty of this work is that CNPMo₈V₆ as an excellent environmentally friendly catalyst, established a basis for utilizing diverse of POMs for the catalytic oxidation of biomass derivatives into valuable fine chemicals under mild conditions.

首次探索了双钒包覆Keggin型多金属氧酸盐（POM） [H2N(C2H4)2NH2]4(h30) [PMo2ⅤMo6ⅥV4ⅣO40-(VⅣO)2]·H2O （CNPMo8V6）在室温无附加能量和无碱性条件下，用H2O2催化葡萄糖氧化成甲酸（FA）。在最佳条件下，葡萄糖转化率、FA收率和碳选择性分别为87.1%、45.2%和65.6%。此外，CNPMo8V6/H2O2体系对果糖、d -甘露糖、木糖和l -阿拉伯糖等糖具有相当的氧化效率。CNPMo8V6在第一次循环使用后失去了一定的催化活性。本研究的优点是制备简单、结构准确的多相CNPMo8V6在温和条件下，不需要任何添加剂的帮助，对H2O2氧化葡萄糖具有良好的催化活性。该工作的缺点是CNPMo8V6的可重用性性能不理想。本研究的新颖之处在于CNPMo8V6作为一种优良的环境友好型催化剂，为利用多种聚甲醛在温和条件下催化氧化生物质衍生物生成有价值的精细化学品奠定了基础。

{"title":"Catalytic conversion of glucose into formic acid over a double vanadium capped Keggin type polyoxometalate under mild conditions","authors":"Lu Chen , Jing-Jing Ji , Bao-Li Fei , Xiang Mei","doi":"10.1016/j.biombioe.2025.108799","DOIUrl":"10.1016/j.biombioe.2025.108799","url":null,"abstract":"<div><div>A double vanadium capped Keggin type polyoxometalate (POM) [H<sub>2</sub>N(C<sub>2</sub>H<sub>4</sub>)<sub>2</sub>NH<sub>2</sub>]<sub>4</sub>(H<sub>3</sub>O) [PMo<sub>2</sub><sup>Ⅴ</sup>Mo<sub>6</sub><sup>Ⅵ</sup>V<sub>4</sub><sup>Ⅳ</sup>O<sub>40</sub>-(V<sup>Ⅳ</sup>O)<sub>2</sub>]·H<sub>2</sub>O (<strong>CNPMo<sub>8</sub>V<sub>6</sub></strong>) was firstly explored for the catalytic oxidation of glucose into formic acid (FA) with H<sub>2</sub>O<sub>2</sub> on the conditions of no additional energy supply and alkaline free at room temperature. Under the optimum conditions, the rate of glucose conversion, the yield of FA and the carbon selectivity were 87.1 %, 45.2 % and 65.6 %, respectively. Furthermore, the <strong>CNPMo<sub>8</sub>V<sub>6</sub></strong>/H<sub>2</sub>O<sub>2</sub> system had comparable oxidation efficiencies for the other sugars including fructose, D-mannose, xylose and L-arabinose. <strong>CNPMo<sub>8</sub>V<sub>6</sub></strong> lost certain catalytic activity after first cycle usage. The advantage of this work is that a easy prepared heterogeneous <strong>CNPMo<sub>8</sub>V<sub>6</sub></strong> with accurate structure exhibited promising catalytic activity for glucose oxidation by H<sub>2</sub>O<sub>2</sub> under mild conditions without the help of any additives. The disadvantage of this work is that the reusability performance of <strong>CNPMo<sub>8</sub>V<sub>6</sub></strong> was not satisfied. The novelty of this work is that <strong>CNPMo<sub>8</sub>V<sub>6</sub></strong> as an excellent environmentally friendly catalyst, established a basis for utilizing diverse of POMs for the catalytic oxidation of biomass derivatives into valuable fine chemicals under mild conditions.</div></div>","PeriodicalId":253,"journal":{"name":"Biomass & Bioenergy","volume":"207 ","pages":"Article 108799"},"PeriodicalIF":5.8,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0