Biomass & Bioenergy最新文献_第2页

Intensified ultrasound assisted extraction of phytoconstituents from Psidium guajava Linn. Leaves using hydro-methanolic solvent: Parametric Investigation 强化超声辅助提取番石榴植物成分的研究。用甲醇溶剂处理叶片：参数化研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-07 DOI: 10.1016/j.biombioe.2026.109239

Dhanashree R. Kavhale , Nishikant A. Raut , Bharat A. Bhanvase , Yogeshwary M. Bhongade

Flavonoids, secondary metabolites of diverse phenolic compounds from plant sources, exhibit numerous pharmacological properties and therefore, efficient extraction methods are crucial for obtaining these bioactive compounds for qualitative analysis. Although traditional extraction methods are commonly used, newer green extraction techniques offer improved extraction efficiency by reducing energy and solvent consumption leading to higher extraction yields. This study explores an application of ultrasound-assisted extraction, a green technique, in extraction of phytoconstituents from Psidium guajava leaves, optimizing key parameters such as extraction time, temperature, ultrasonic input power, and solvent ratio. Additionally, the study evaluates the antioxidant properties and significant antidiabetic activity of the extracted compounds. The extraction of Psidium guajava Linn. leaves were optimized for enhance yield, which was obtained at 40 °C at the end of 45 min of extraction time with a solvent ratio of 60:40 (methanol: water) among several batches. At this optimized condition 38.7% extraction was achieved and yielded the highest amount of flavonoids which is 229.31 mg/g with the use of ultrasound extraction and the delivered power was 173.2 W. Ultrasound-assisted extraction significantly enhances the yield of phytoconstituents, especially flavonoids, and found promising for managing Type 2 diabetes mellitus. The biochemical analysis revealed that the flavonoids reduce blood glucose levels more effectively than the diabetic control. However, while these extracts are effective, these are still less potent than the standard antidiabetic drug sitagliptin, indicating that it may be more suitable as complementary therapies rather than standalone treatments.

黄酮类化合物是植物中多种酚类化合物的次生代谢产物，具有多种药理特性，因此，高效的提取方法对于获得这些生物活性化合物进行定性分析至关重要。虽然传统的提取方法被广泛使用，但新的绿色提取技术通过减少能源和溶剂消耗来提高提取效率，从而提高提取收率。研究了超声波辅助提取技术在番石榴叶植物成分提取中的应用，并对提取时间、温度、超声输入功率、溶剂比等关键参数进行了优化。此外，本研究还评估了所提取化合物的抗氧化性能和显著的抗糖尿病活性。番石榴叶的提取。在提取时间45 min、溶剂比60:40、温度40℃的条件下，分批次提取得到了提取率最高的叶片。在此优化条件下，黄酮类化合物提取率为38.7%，超声提取黄酮类化合物的提取率最高，为229.31 mg/g，超声提取功率为173.2 W。超声辅助提取显著提高了植物成分，特别是黄酮类化合物的产量，对治疗2型糖尿病有很大的帮助。生化分析显示，黄酮类化合物比糖尿病对照组更有效地降低血糖水平。然而，虽然这些提取物是有效的，但它们仍然不如标准的抗糖尿病药物西格列汀有效，这表明它可能更适合作为补充疗法，而不是单独治疗。

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引用次数: 0

Optimization of dilute nitric acid pretreatment of brewers’ spent grains for sustainable biorefinery development and poly(3-hydroxybutyrate) production 面向可持续生物炼制和聚3-羟基丁酸酯生产的啤酒糟稀硝酸预处理优化研究

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-22 DOI: 10.1016/j.biombioe.2026.109103

Chrysanthi Argeiti , Evanthia Georgiadou , Chrysavgi Gardeli , Apostolis Koutinas , Katiana Filippi , Anestis Vlysidis

This study presents an integrated biorefinery concept using brewers’ spent grains (BSG) processed via acidic enzymatic proteolysis and dilute nitric acid treatment for the production of protein-rich hydrolysates and poly(3-hydroxybutyrate) (PHB). After aqueous extraction of dextrins, acidic proteolysis of the remaining BSG solids (10% w/v, pH 3, 50 °C, 10 U/g) achieved a protein extraction efficiency of 66.9 ± 0.6%. The protein-rich hydrolysate contained, per 100 g protein, mainly glutamic acid and glutamine (29.8%), aspartic acid and asparagine (9.7%), leucine (8.1%), proline (7.2%) and valine (6.7%). Central composite design was employed for the optimization of dilute HNO₃ pretreatment of the remaining BSG solids to maximize the glucan and hemicellulose to sugar conversion yield, considering HNO₃ concentration (0-1% w/v) and temperature (70-120 °C) as process variables. The optimal BSG treatment was achieved at 0.29% (w/v) HNO₃, 120 °C and 30 min reaction duration, resulting in 58.1% overall glucan and hemicellulose to sugar conversion yield. The hydrolysate contained 75.1% glucose, 20.7% xylose, 3.7% galactose and 1.5% arabinose. Fed-batch fermentation of Paraburkholderia sacchari using the optimal BSG hydrolysate resulted in 97.7 g/L PHB, 65.5% (w/w) intracellular PHB content, 0.31 g/g PHB yield and a productivity of 2.87 g/(L∙h). This biorefinery concept resulted in the production of 155.1 g PHB and 160.2 g protein-rich extract produced as hydrolysate from 1 kg BSG.

本研究提出了一种综合生物炼制概念，利用酸性酶蛋白水解和稀硝酸处理的啤酒糟（BSG）生产富含蛋白质的水解物和聚（3-羟基丁酸酯）（PHB）。糊精水溶液提取后，对剩余BSG固体（10% w/v, pH 3, 50°C, 10 U/g）进行酸性蛋白水解，蛋白质提取效率为66.9±0.6%。富含蛋白质的水解产物每100 g蛋白质主要含有谷氨酸和谷氨酰胺（29.8%）、天冬氨酸和天冬酰胺（9.7%）、亮氨酸（8.1%）、脯氨酸（7.2%）和缬氨酸（6.7%）。以HNO3浓度（0 ~ 1% w/v）和温度（70 ~ 120℃）为工艺变量，采用中心复合设计优化稀HNO3预处理BSG剩余固相的葡聚糖和半纤维素制糖率。最佳处理条件为：HNO3浓度为0.29%，反应温度为120℃，反应时间为30 min，总葡聚糖和半纤维素的糖转化率为58.1%。水解产物中葡萄糖含量为75.1%，木糖含量为20.7%，半乳糖含量为3.7%，阿拉伯糖含量为1.5%。采用最佳BSG水解液补料分批发酵，PHB含量为97.7 g/L，胞内PHB含量为65.5% (w/w)， PHB产量为0.31 g/g，产率为2.87 g/(L∙h)。这一生物精馏概念使每千克BSG的水解产物可生产155.1克PHB和160.2克富含蛋白质的提取物。

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引用次数: 0

The Ca-N-C ligand in the pyrolysis carbon-based single-atom catalyst enhance the olefin selectivity in the pyrolysis process of regenerated PP 碳基单原子催化剂中的Ca-N-C配体提高了再生PP热解过程中烯烃的选择性

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-25 DOI: 10.1016/j.biombioe.2026.109115

Kaiwen Yun , Xixi Lian , Rui Shan , Guoqiang Wei , Shuxiao Wang , Haoran Yuan , Yong Chen

Pyrolytic carbon-based catalysts are widely used due to their characteristics such as low cost and high efficiency. However, conventional pyrolytic carbon catalysts have problems such as aggregation of active particles and low utilization rate of active sites. In this paper, a novel method is adopted to add α-D-glucose and melamine during the preparation of pyrolytic carbon catalysts, achieving atomic-level dispersion of calcium atoms, the active substances in the catalyst. It is confirmed by various characterization methods that the calcium-nitrogen-carbon (Ca-N-C) coordination structure constructed in this paper for the first time can anchor metallic calcium on the surface of the catalyst, effectively inhibiting the agglomeration tendency of calcium atoms, and thus achieving the ideal state of "low loading and high distribution" of calcium metal. Compared with conventional pyrolytic carbon catalysts, the modified catalyst has significant advantages in improving liquid yield and olefin selectivity. The effects of catalytic temperature and feedstock-to-catalyst ratio to catalyst on olefin yield were further explored. The results show that under the optimal conditions, the liquid yield can reach 94.69%, among which the olefin content is 72.66%, and the olefin yield can reach 0.69 g/g. This study provides a theoretical and experimental basis for the preparation and application of pyrolytic carbon catalysts with atomic-level dispersion of active metals.

热解碳基催化剂具有成本低、效率高等特点，得到了广泛的应用。然而，传统的热解碳催化剂存在活性颗粒聚集、活性位点利用率低等问题。本文采用一种新颖的方法，在制备热解碳催化剂的过程中加入α- d -葡萄糖和三聚氰胺，实现了催化剂中活性物质钙原子的原子级分散。通过各种表征方法证实，本文首次构建的钙-氮-碳（Ca-N-C）配位结构可以将金属钙锚定在催化剂表面，有效抑制钙原子的团聚倾向，从而达到金属钙“低负荷、高分布”的理想状态。与传统的热解碳催化剂相比，改性后的催化剂在提高产液率和烯烃选择性方面具有显著的优势。进一步探讨了催化温度和进料催化剂比对烯烃收率的影响。结果表明，在最优条件下，液相得率可达94.69%，其中烯烃含量为72.66%，烯烃得率可达0.69 g/g。本研究为活性金属原子级分散的热解碳催化剂的制备和应用提供了理论和实验依据。

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引用次数: 0

Structure–acidity interplay in Ni/HUSY catalysts for external H2-free hydrothermal conversion of palm oil in alcohol–water media Ni/HUSY催化剂在醇-水介质中无h2水热转化棕榈油的结构-酸度相互作用

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-25 DOI: 10.1016/j.biombioe.2026.109152

Suparkorn Sedtabute , Tharapong Vitidsant , Chawalit Ngamcharussrivichai

The transition toward low-carbon aviation fuels necessitates sustainable catalytic routes capable of converting renewable lipids into hydrocarbons without reliance on external hydrogen. This study explores an external H₂-free hydrothermolysis pathway for palm oil conversion into bio-jet fuel-range hydrocarbons using a series of Ni catalysts supported on dealuminated HUSY zeolites in alcohol–water co-solvent systems. Effects of HUSY dealumination via nitric acid treatment (0.05–0.15M) on catalyst properties and hydrocarbon selectivity were evaluated. Comprehensive characterization using various techniques revealed that dealumination at 0.10M HNO₃ generated an optimal balance of acidity, porosity, and Ni dispersion, while milder and harsher treatments led to side reactions and partial framework collapse. Methanol addition enhanced in situ hydrogen generation and hydrodeoxygenation (HDO), whereas excess methanol promoted esterification and accumulation of corresponding fatty acid methyl esters. Under optimized conditions (oil:water:methanol = 2:1:1 and feedstock:solvent = 1:1) at 400 °C, the system achieved a 69.4% alkane selectivity at 59.4% liquid yield, with ∼30% lower aromatic content than the water-only benchmark. The process selectively produced C9–C18 alkanes, dominated by C15 and C17 species via concurrent decarbonylation/decarboxylation and HDO pathways. These results highlight that controlled dealumination, coupled with alcohol-assisted hydrothermal media, provides a hydrogen-self-sufficient and energy-efficient strategy for upgrading renewable oils into drop-in sustainable aviation fuels.

向低碳航空燃料的过渡需要可持续的催化路线，能够将可再生脂类转化为碳氢化合物，而不依赖外部氢。本研究探索了在醇-水共溶剂体系中，利用脱铝HUSY沸石负载的一系列Ni催化剂，将棕榈油转化为生物喷气燃料型碳氢化合物的外部无h2水热裂解途径。考察了0.05 ~ 0.15 m硝酸处理对HUSY脱铝催化剂性能和烃类选择性的影响。综合各种技术表征表明，在0.1 m HNO3条件下脱铝可以达到酸度、孔隙度和Ni分散的最佳平衡，而较温和和较苛刻的处理会导致副反应和部分骨架崩溃。甲醇的加入促进了原位氢生成和氢脱氧（HDO），而过量的甲醇促进了相应脂肪酸甲酯的酯化和积累。在400°C的优化条件下（油：水：甲醇= 2:1:1，原料：溶剂= 1:1），该体系的烷烃选择性为69.4%，产率为59.4%，芳香含量比纯水基准低约30%。该工艺选择性地产生C9-C18烷烃，C15和C17主要通过脱羰/脱羧和HDO途径。这些结果表明，控制脱铝，加上醇辅助热液介质，为将可再生油升级为可降解的可持续航空燃料提供了一种氢自给自足和节能的策略。

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引用次数: 0

Mesopore-confined Ni nanoparticles on stable aluminosilicate synthesized using natural cellulose template for green diesel production from Calophyllum inophyllum Oil 利用天然纤维素模板在稳定的铝硅酸盐上合成介孔限制镍纳米颗粒，用于从茶树油中生产绿色柴油

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-25 DOI: 10.1016/j.biombioe.2026.109177

Stella Jovita , Ingelia Yuan Fernanda , Didik Prasetyoko , Riki Subagyo , Khawiyatur Riv'ah Agustina , Nurul Asikin-Mijan , Rustam Tamim , Eko Santoso , Suprapto Suprapto , Holilah Holilah , Hasliza Bahruji , Maria Ulfa , Abdul Hamid

Mesoporous aluminosilicate decorated with nickel nanoparticles confined in the mesoporous channels enhanced the stability of catalysts for hydrocarbon production from non-edible oils. Mesoporous aluminosilicate (AlMs) synthesized via a mixture of Pluronic and Nanocellulose (NCC) as template (PN) was compared with Pluronic P123 (P) only. The role of NCC in increasing stability of Al-MS was observed on the preservation of high surface area (315 m² g⁻¹), mesoporosity (7.05 nm) and the absence of amorphous aluminosilicate cluster, allowing NiO deposition within the confined mesopores. A stronger Lewis acidity and open mesopores channel of Ni/AlMs(PN) promotes stability of the catalysts for four deoxygenation cycles of Calophyllum inophyllum oil (CIO) to green hydrocarbon diesel. Ni/AlMs (PN) achieved 99.11% conversion, 66.37% liquid yield, and 84.48% hydrocarbon selectivity with C₁₅–C₁₇ fractions (73.05%). This work demonstrates that NCC as a green co-template effectively produced high-performance catalyst with enhanced distribution of acid site for sustainable green diesel production.

纳米镍修饰的介孔硅酸铝增强了非食用油脂制烃催化剂的稳定性。以Pluronic和纳米纤维素（NCC）的混合物为模板（PN）合成介孔硅酸铝（AlMs），并与仅Pluronic P123 (P)进行了比较。NCC在提高Al-MS稳定性方面的作用是通过保持高表面积（315 m2 g−1），介孔（7.05 nm）和不存在无定形铝硅酸盐团簇，允许NiO沉积在有限的介孔内。Ni/AlMs（PN）具有较强的Lewis酸性和开放的介孔通道，促进了Calophyllum inophyllum oil （CIO）四次脱氧循环制备绿色烃柴油催化剂的稳定性。Ni/AlMs （PN）在C15-C17组分中的转化率为99.11%，液收率为66.37%，烃选择性为84.48%（73.05%）。这项工作表明，NCC作为一种绿色共模板有效地生产了高性能催化剂，并增强了酸位的分布，用于可持续的绿色柴油生产。

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引用次数: 0

Surface modification of biochars for efficient Cu2+ adsorption: Effects of microwave-assisted oxygen and nitrogen doping via hydrogen peroxide and nitric acid 生物炭表面改性对Cu2+的高效吸附：微波辅助过氧化氢和硝酸掺杂氧和氮的影响

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-05 DOI: 10.1016/j.biombioe.2026.109208

Derya Murat , İbrahim Teği̇n , Cafer Saka

In this study, microwave-assisted heteroatom doping was employed to synthesize oxygen-functionalized (MW@O) and nitrogen–oxygen dual-functionalized (MW@N, O) biochars, which were evaluated for Cu²⁺ removal from aqueous solutions. Comprehensive adsorption analyses, including isotherm modeling, kinetic evaluation, thermodynamic assessment, and point of zero charge (pH_pzc) determination, were performed to clarify the adsorption behavior. The pH_pzc values of MW@O and MW@N, O doped biochars were 6.15 and 4.27, respectively, indicating enhanced Cu²⁺ uptake at pH values above these thresholds due to favorable electrostatic interactions. At 303 K, Langmuir monolayer capacities (Q_m) were 109.89 mg/g for MW@O doped biochar and 140.84 mg/g for MW@N, O doped biochar. Although surface area decreased after modification, adsorption capacity increased, suggesting that Cu²⁺ uptake was primarily governed by the enrichment of oxygen- and nitrogen-containing functional groups (e.g., –OH, –COOH, –NH₂) rather than porosity. Adsorption followed the Langmuir model and proceeded through combined electrostatic attraction and surface complexation mechanisms. These results demonstrate that microwave-assisted heteroatom modification effectively tailors’ biochar surface chemistry and enhances Cu²⁺ adsorption performance under controlled experimental conditions, providing mechanistic insight into the role of surface functionalization in heavy metal removal.

本研究采用微波辅助杂原子掺杂制备了氧官能化（MW@O）和氮氧双官能化（MW@N， O）生物炭，并对其去除Cu2+的能力进行了评价。综合吸附分析，包括等温线建模、动力学评价、热力学评价和零电荷点（pHpzc）测定，以阐明吸附行为。掺入O的生物炭MW@O和MW@N的pHpzc值分别为6.15和4.27，表明在pH值高于这些阈值时，由于有利的静电相互作用，Cu2+的吸收增强。在303 K时，MW@O掺杂生物炭的Langmuir单层容量（Qm）为109.89 mg/g, MW@N， O掺杂生物炭的Langmuir单层容量为140.84 mg/g。虽然改性后的表面积减小，但吸附量增加，表明Cu2+的吸收主要受含氧和含氮官能团（- oh、- cooh、- nh2）的富集而不是孔隙度的控制。吸附遵循Langmuir模型，通过静电吸引和表面络合的联合机制进行。这些结果表明，微波辅助杂原子修饰有效地调整了生物炭的表面化学性质，并在可控的实验条件下提高了Cu2+的吸附性能，为表面功能化在重金属去除中的作用提供了机制见解。

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引用次数: 0

Sustainable transformation of pumpkin (Cucurbita sp.) waste into food products, biofuels, environmental applications 南瓜（Cucurbita sp.）废物可持续转化为食品，生物燃料，环境应用

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-03 DOI: 10.1016/j.biombioe.2026.109212

Thuan Van Tran

Pumpkin (Cucurbita sp.) waste types, including peels, seeds, seed shells, fibrous strands, oilseed cake, leaves, stems, and pulp represent a substantial and underutilized resource. This review comprehensively examines the chemical composition and potential use of pumpkin waste. Pumpkin waste is rich in bioactive compounds, including carotenoids, phenolic compounds, dietary fiber, and proteins for enhancing the nutritional quality of food products. Notably, the seeds yield cold-pressed oil abundant in bioactive compounds, suitable for food fortification and cosmetics. Furthermore, biochars derived from pumpkin waste showed remarkable efficiencies for removal of Pb²⁺ and Ni²⁺ ions. The conversion of pumpkin waste into biofuels presented a promising valorization route; and enzymatic hydrolysis of pumpkin peel promoted bioethanol production with high yields. Anaerobic digestion of pumpkin pulp and peel also yielded the effective production of biogases. Thus, the sustainable transformation of pumpkin waste can contribute to a circular economy, addressing global issues related to food waste, nutritional deficiencies, and environmental pollution.

南瓜（Cucurbita sp.）的废物类型，包括果皮、种子、籽壳、纤维股、油籽饼、叶子、茎和果肉，是一种大量但未充分利用的资源。本文综述了南瓜废弃物的化学成分及其潜在利用价值。南瓜废料富含生物活性化合物，包括类胡萝卜素、酚类化合物、膳食纤维和蛋白质，可提高食品的营养质量。值得注意的是，种子产生的冷榨油富含生物活性化合物，适用于食品强化和化妆品。此外，从南瓜渣中提取的生物炭对Pb2+和Ni2+离子的去除效果显著。将南瓜废料转化为生物燃料是一条很有前途的增值途径；南瓜皮的酶解促进了生物乙醇的高产出。对南瓜果肉和果皮进行厌氧消化也能有效地产生沼气。因此，南瓜废料的可持续转化可以促进循环经济，解决与食物浪费、营养缺乏和环境污染有关的全球问题。

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引用次数: 0

Valorization of tamarind kernel biomass into functional biopolymers for yeast immobilization and enhanced ethanol production 罗望子核生物质转化为酵母固定化和增强乙醇生产的功能性生物聚合物

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-03-06 DOI: 10.1016/j.biombioe.2026.109230

Amisha Rani , Lavish Chalana , Sumandeep Kaur , Kritika Kuksal , Abhilasha Sharma , Aman Sharma , Arti Nile , Shivraj Hariram Nile

The valorization of agro-industrial residues into functional biopolymers aligns with circular economy principles and offers sustainable alternatives to synthetic materials in food and fermentation applications. This study investigated the potential application of tamarind kernel powder (TKP), an underutilized agri-waste, as a source of tamarind kernel mucilage (TKM) and tamarind kernel starch (TKS) for yeast immobilization for bioethanol production. Mucilage and starch were extracted via green aqueous media, yielding percentages of 28.6 ± 1.1% and 38.4 ± 1.6% respectively. The biopolymers were characterized for their solubility, swelling, and water-holding capacity via thermal (TGA), morphological (SEM), structural (FTIR, XRD), and surface charge analyses. The TKM exhibited an amorphous structure, high hydrophilicity, and an anionic surface (−31.6 mV), whereas the TKS displayed A-type crystallinity and a positive charge (+12.4 mV), indicating gelling property with divalent cations and copolymers. Saccharomyces cerevisiae was successfully immobilized in TKM-based hydrogel beads (1 g/10 mL), with sodium alginate as a control, to form porous, mechanically stable beads. Fermentation trials in 10% glucose medium revealed that immobilized yeast produced significantly more ethanol (7.94 ± 0.24% v/v) than free yeast (3.60 ± 0.08% v/v). These findings demonstrate the feasibility of tamarind-derived hydrocolloids as sustainable immobilization agents and support their broader application in fermentation and bioprocessing.

将农业工业残留物转化为功能性生物聚合物符合循环经济原则，并为食品和发酵应用中的合成材料提供了可持续的替代品。本研究探讨了罗望子仁粉（TKP）作为罗望子仁胶（TKM）和罗望子仁淀粉（TKS）的酵母固定化生产生物乙醇的潜在应用。浆液和淀粉经绿色水溶液提取，得率分别为28.6±1.1%和38.4±1.6%。通过热分析（TGA）、形貌分析（SEM）、结构分析（FTIR）、x射线衍射（XRD）和表面电荷分析对生物聚合物的溶解度、溶胀性和保水能力进行了表征。TKM具有无定形结构、高亲水性和阴离子表面（−31.6 mV），而TKS具有a型结晶度和正电荷（+12.4 mV），表明其具有与二价阳离子和共聚物的凝胶性。以海藻酸钠为对照，成功地将酿酒酵母固定在tkm基水凝胶珠（1 g/10 mL）中，形成多孔的、机械稳定的微球。在10%葡萄糖培养基中发酵试验表明，固定化酵母的乙醇产量（7.94±0.24% v/v）显著高于游离酵母（3.60±0.08% v/v）。这些发现证明了罗望子衍生的水胶体作为可持续固定化剂的可行性，并支持其在发酵和生物加工中的广泛应用。

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引用次数: 0

Energy–environmental nexus in green hydrogen-assisted conversion of second-crop canola to sustainable aviation fuel: Toward low-carbon bioenergy systems 绿色氢辅助第二作物油菜籽转化为可持续航空燃料的能源环境关系：迈向低碳生物能源系统

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-23 DOI: 10.1016/j.biombioe.2026.109149

Giulia Cruz Lamas , Alexandre Nunes Cardoso , Priscila Seixas Sabaini , Sandra M. Luz , Maria dos Reis Santos Borges , Tainara da S. Costa , Thiago da Silva Gonzales , Marilia Ieda da Silveira Folegatti Matsuura , Bruno Galveas Laviola , Thiago O. Rodrigues , Patrick Rousset , Edgar A. Silveira

Aviation fuel remains the main cost and environmental burden in air transport. This study presents a well-to-wake life cycle assessment (LCA) of canola-based Sustainable Aviation Fuel (SAF) under tropical conditions, based on primary data from Brazilian producers. The analysis encompasses agricultural, pre-processing, and conversion stages via the hydroprocessed esters and fatty acids (HEFA) pathway, revealing the potential of second-crop canola for low-carbon aviation. The study integrates process modeling, renewable hydrogen, and land-use efficiency to capture drivers across stages. The ReCiPe method was applied to 1 MJ of biokerosene as the functional unit. Agriculture dominates GHG emissions (34.2 g CO₂ eq. MJ⁻¹), driven primarily by fertilizer production and soil N₂O emissions, while the HEFA phase contributes 12.8 g CO₂ eq. MJ⁻¹. Substituting fossil hydrogen with photovoltaic- and wind-based hydrogen for in HEFA upgrading reduces emissions by 92 to 96.6%, resulting in up to 19.6% lower total life-cycle emissions. Compared to Jet-A1, SAF decreases fossil depletion by 59% and achieves climate benefits; however, it entails higher burdens in selected non-climate impact categories. Freshwater and marine eutrophication reach approximately 0.01 g P eq. MJ⁻¹ and 0.7 g N eq. MJ⁻¹, respectively, while human toxicity is above 1 g 1,4-DB eq. MJ⁻¹, with the agricultural stage accounting for over 90% of these impacts, particularly fertilizer production and use. Land occupation (0.074 m² yr MJ⁻¹) is optimized through canola soybean rotation, mitigating deforestation risks. The findings demonstrate canola's strategic role in Brazil's decarbonization policies, highlighting the need for improved fertilizer management and renewable hydrogen integration to advance SAF.

航空燃料仍然是航空运输的主要成本和环境负担。本研究基于巴西生产商的原始数据，提出了热带条件下油菜籽基可持续航空燃料（SAF）的井到尾流生命周期评估（LCA）。该分析涵盖了农业、预处理和通过加氢酯和脂肪酸（HEFA）途径的转化阶段，揭示了第二季油菜籽在低碳航空领域的潜力。该研究整合了过程建模、可再生氢和土地利用效率，以捕捉各个阶段的驱动因素。以1 MJ的生物煤油为功能单位，采用配方法进行反应。农业主导温室气体排放（34.2 g CO2当量MJ−1），主要由肥料生产和土壤N2O排放驱动，而HEFA阶段贡献12.8 g CO2当量MJ−1。在HEFA升级中，用光伏和风能氢替代化石氢可减少92%至96.6%的排放量，使全生命周期总排放量降低19.6%。与Jet-A1相比，SAF减少了59%的化石消耗，并实现了气候效益；然而，在某些非气候影响类别中，它带来了更高的负担。淡水和海洋富营养化分别达到约0.01 g P eq. MJ - 1和0.7 g N eq. MJ - 1，而人类毒性超过1 g 1,4- db eq. MJ - 1，其中农业阶段占90%以上，特别是肥料的生产和使用。通过油菜-大豆轮作优化了土地占用（0.074 m2 yr MJ−1），降低了森林砍伐风险。研究结果证明了油菜籽在巴西脱碳政策中的战略作用，强调了改善肥料管理和可再生氢整合以推进SAF的必要性。

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引用次数: 0

Biomass boiler ash as a green adsorbent for efficient removal of textile dyes 生物质锅炉灰作为绿色吸附剂可有效去除纺织染料

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING

Biomass & Bioenergy

Pub Date : 2026-08-01 Epub Date: 2026-02-22 DOI: 10.1016/j.biombioe.2026.109128

Malluwawadu Janani Chiranga , Thakshila Nadeeshani Dharmapriya , Namal Priyantha , Mishantha Karunathilaka , Ajith Manayil Parambil

The textile industry generates dye-contaminated wastewater and solid wastes, including biomass boiler ash, which creates significant environmental concerns. This study explores a sustainable approach using biomass boiler ash from a rubber wood-fired biomass boiler at Apparel Industry X, Colombo, Sri Lanka, as a low-cost adsorbent to remove Reactive Red 194 (Asahifix Red XP–3BF), a dye commonly used within the same industry. This is the first scientific study to investigate the removal of this dye using biomass boiler ash. Batch adsorption experiments were conducted, and the adsorbents were characterized using FTIR, XRD, and SEM techniques. Two ash types, Boiler Bed Ash (BBA) and Wet Bottom Ash (WBA), were tested, with BBA showing superior adsorption capacity (63.06%) compared to WBA (32.32%). BBA was selected for further analysis under batch studies. BBA was physicochemically characterized, revealing a specific surface area of 90.9 m²/g and functional groups responsible for dye binding. C–Cl stretching in FTIR indicated consistent Reactive Red dye adsorption. Batch studies achieved a maximum removal of 98.20% at a 500 mg adsorbent dosage. However, 200 mg was selected for a 54.32% removal to balance efficiency with material economy and sustainability. Optimal shaking time was 60 min at a near-neutral pH (6.8–7). Adsorption followed the Langmuir isotherm (R² = 0.9681, R_L = 0.018–0.155) and pseudo-second-order kinetics, indicating strong surface interaction. Short-bed adsorption column studies verified the continuous removal of dye using BBA at a flow rate of 5 mL/min. Industrial wastewater from Industry X achieved a 99% dye removal rate, confirming its practical effectiveness. This study promotes a circular economy by repurposing industrial waste for sustainable, cost-effective wastewater treatment.

纺织工业产生受染料污染的废水和固体废物，包括生物质锅炉灰，这造成了严重的环境问题。本研究探索了一种可持续的方法，利用斯里兰卡科伦坡服装工业X的橡胶木材燃烧生物质锅炉的生物质锅炉灰作为低成本吸附剂，去除同一行业中常用的染料活性红194 （Asahifix Red XP-3BF）。这是第一个研究利用生物质锅炉灰去除这种染料的科学研究。进行了批量吸附实验，并用FTIR、XRD、SEM等技术对吸附剂进行了表征。对锅炉床灰（BBA）和湿底灰（WBA）两种灰分进行了测试，其中BBA的吸附能力为63.06%，而WBA的吸附能力为32.32%。在批量研究中选择BBA进行进一步分析。对BBA进行了物理化学表征，发现其比表面积为90.9 m2/g，具有与染料结合的官能团。FTIR中C-Cl的拉伸表明对活性红染料的吸附一致。批量研究在吸附剂用量为500 mg时达到了98.20%的最大去除率。然而，选择200 mg的去除率为54.32%，以平衡效率与材料经济性和可持续性。在接近中性的pH值（6.8-7）下，最佳振荡时间为60 min。吸附遵循Langmuir等温线（R2 = 0.9681, RL = 0.018-0.155）和拟二级动力学，表明表面相互作用强。短床吸附柱研究证实了以5 mL/min的流速使用BBA连续去除染料。X工业废水的染料去除率达到99%，证实了其实际效果。本研究通过将工业废物重新利用为可持续的、具有成本效益的废水处理来促进循环经济。

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引用次数: 0