Algal Research-Biomass Biofuels and Bioproducts最新文献

{"title":"A sustainable ultrasonic and microwave-assisted sequential extraction strategy of metabolites from Porphyridium sp.","authors":"Siddhant Dubey ,&nbsp;Reeta Rani Singhania ,&nbsp;Lisandra Rocha-Meneses ,&nbsp;Cheng-Di Dong ,&nbsp;Anil Kumar Patel","doi":"10.1016/j.algal.2025.104276","DOIUrl":"10.1016/j.algal.2025.104276","url":null,"abstract":"<div><div>Microalgal biomass is an increasingly attractive resource for sustainable biofuel production and the extraction of high-value co-products due to its fast growth and high lipid content. However, conventional extraction methods often rely on large volumes of solvents, contributing to environmental degradation. This study proposes innovative approaches to minimize solvent use and waste while enhancing lipid extraction and sequential recovery of valuable metabolites using advanced ultrasonic and microwave pretreatment techniques. The current study aimed to enhance lipid extraction efficiency from <em>Porphyridium purpureum</em> by effectively disrupting its rigid cell walls and reducing the need for excessive solvent volumes. FUSE, operated at 30 % power for 20 min with a methanol:chloroform mixture (1:2 <em>v</em>/v), proved the most efficient, achieving a lipid yield of 31.4 ± 0.41 %, while reducing extraction time and solvent consumption. Protein and carbohydrate contents were quantified at 32.14 ± 0.35 % and 35.2 ± 0.22 %, respectively. Post lipid extraction, sequential recovery of proteins, carbohydrates, and bioactives were carried out with residual biomass, two sequences: protein-lipid-carbohydrate and lipid-protein-carbohydrate. These sequences resulted in maximum co-product recovery of 69 % lipid and 57 % carbohydrate, and 65 % protein and 52 % carbohydrate, respectively. These sequential extraction processes maximized resource utilization, minimized waste, and demonstrated a zero-waste approach aligned with Sustainable Development Goal 7 and circular economy principles. The findings highlight the potential of microalgal biorefineries to reduce the environmental impact of biofuel and biochemical production by adopting green, solvent-minimizing extraction technologies that enhance resource efficiency and sustainability.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"90 ","pages":"Article 104276"},"PeriodicalIF":4.5,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921293","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}

{"title":"Reactive oxygen species (ROS) induce the gametogenesis through regulating the expression of genes related to ontogenetic stage in gametophyte of Saccharina japonica","authors":"Haiping Jin ,&nbsp;Qikun Xing ,&nbsp;Yu Yan ,&nbsp;Yuanyuan Xu ,&nbsp;Yingying Qin ,&nbsp;Xingyu Liao ,&nbsp;Fuli Liu","doi":"10.1016/j.algal.2025.104254","DOIUrl":"10.1016/j.algal.2025.104254","url":null,"abstract":"<div><div>The gametophyte clonal lines of <em>Saccharina japonica</em> have extremely important application values in aspects such as seedling cultivation and genetic resource conservation. Under unfavorable conditions, <em>S. japonica</em> gametophytes cease reproductive development and instead form multicellular clones through mitosis. However, under suitable conditions, these gametophytes can transition from vegetative growth to reproductive development. While extensive research has elucidated the environmental conditions that induce this transition, studies investigating the intrinsic regulatory mechanisms underlying this process remain exceedingly rare. Our findings indicate that treatment with H₂O₂ accelerated the transition from vegetative growth to reproductive development in gametophytes. During this critical phase, genes related to reactive oxygen species (ROS) scavenging enzymes, cell signaling, cell division and cell wall polysaccharide metabolism exhibited differential expression patterns. Notably, the differential expression of ROS scavenging enzymes led to H₂O₂ accumulation, which in turn induced changes in the expression of cell signaling-related genes. This process inhibited the Mitogen-Activated Protein Kinase (MAPK) signaling pathway, suppressing cell division. Concurrently, ROS differentially regulated genes associated with cell wall polysaccharide metabolism, inhibiting cell wall synthesis while enhancing its elasticity. This study will further deepen our understanding of the intrinsic regulatory mechanisms underlying kelp gametophyte reproductive development, and will contribute to the efficiency enhancement of the cultivation methods for kelp seedlings based on delayed gametophyte clone.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104254"},"PeriodicalIF":4.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144771070","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}

{"title":"Cyanobacteria Sancta: diversity of oxyphotoprokaryotes on facades of centenary churches in a tropical region of Brazil","authors":"Jonatas Mota Paulino ,&nbsp;Jefferson Vitor Melo Cabral ,&nbsp;Gabriel Josias Silva de Souza ,&nbsp;Haywood Dail Laughinghouse IV ,&nbsp;Watson Arantes Gama","doi":"10.1016/j.algal.2025.104246","DOIUrl":"10.1016/j.algal.2025.104246","url":null,"abstract":"<div><div>Aerophytic phototrophic biofilms, predominantly composed of cyanobacteria, are known to affect historical building facades and external structures, potentially causing aesthetic and structural damage. While cyanobacteria are recognized as early colonizers of rocky substrates, their diversity and role in tropical regions, particularly in Brazil, remain underexplored, leading to gaps in taxonomy and a limited understanding of these communities. This study aimed to characterize the cyanobacterial communities at centenary heritage sites using morphological, structural, and molecular techniques. Using qualitative and quantitative data, samples were collected from five churches in Olinda's historic area (PE, Brazil), a nationally recognized heritage site. The analysis included a) inoculum culture, b) morphological characterization, c) ultrastructural examination, and d) phylogenetic analysis (16S rRNA gene sequencing). A total of 36 morphospecies were identified and distributed across 21 genera, with <em>Scytonema schmidtii</em> being the most abundant species in all sampled churches. Scanning electron microscopy revealed a heterogeneous distribution and dominance of coccoid and heterocytous cyanobacteria on the substrates. Molecular analysis of isolated strains identified five distinct lineages, each belonging to a different family, suggesting the presence of potential new species and genera. This study highlights the significant cyanobacterial diversity on these historical substrates and underscores the importance of employing a multi-faceted approach to characterize these biofilms effectively.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104246"},"PeriodicalIF":4.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827347","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}

{"title":"Coordinated carbon and nitrogen metabolism in attaining iron homeostasis in the unicellular N2-fixing cyanobacterium Crocosphaera watsonii WH8501","authors":"Xin Zhong,&nbsp;Meng Chen,&nbsp;Guangming Mai,&nbsp;Tuo Shi","doi":"10.1016/j.algal.2025.104249","DOIUrl":"10.1016/j.algal.2025.104249","url":null,"abstract":"<div><div>Marine diazotrophic cyanobacteria are ocean's primary producers and suppliers of “new” nitrogen (N) due to their capability to perform both photosynthesis and N₂ fixation, which require iron (Fe)—an extremely scarce trace metal in world's surface ocean—as a cofactor. While enhanced phytoplankton growth as a result of Fe fertilization has been frequently encountered, how marine diazotrophs adjust basal physiology and metabolism in response to varied Fe availability, particularly from a single-cell perspective, remains elusive. Here we show coordinated carbon (C) and N metabolism in sustaining Fe homeostasis in the unicellular N₂-fixing cyanobacterium <em>Crocosphaera watsonii</em> WH8501. Fe deficiency inhibited cell growth, photosynthesis and N₂ fixation, leading to a decrease in the content of particulate organic C and N. However, the C:N ratio in the Fe-deficient cells was significantly higher than that in the Fe-replete cells, coinciding with a greater reduction in metalloenzyme inventory associated with N metabolism than with C metabolism. Intriguingly, Fe deficiency caused C flux toward Fe-independent glycolysis and bypassing the Fe-dependent tricarboxylic acid cycle so that Fe can be reallocated to superoxide dismutase to maintain redox balance. Meanwhile, upregulation of the nitrate/nitrite assimilation enzymes under Fe deficiency further alleviated the high Fe demand of N₂ fixation. Taken together, this study highlights physiological basis underpinning <em>Crocosphaera</em> phenotypic plasticity in regulating central metabolism to acclimatize Fe availability, which is of important reference in assessing marine diazotrophs adaptation to changing marine ecosystem.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104249"},"PeriodicalIF":4.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737973","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}

{"title":"Enrichment of Arthrospira platensis with silver nanoparticles: Effects on nanoparticle uptake and biomass accumulation","authors":"Inga Zinicovscaia ,&nbsp;Nikita Yushin ,&nbsp;Tatiana Chiriac ,&nbsp;Ludmila Rudi ,&nbsp;Irina Fadeikina ,&nbsp;Evgeny Andreev ,&nbsp;Liliana Cepoi","doi":"10.1016/j.algal.2025.104253","DOIUrl":"10.1016/j.algal.2025.104253","url":null,"abstract":"<div><div>The incorporation of silver nanoparticles into cyanobacterium <em>Arthrospira platensis</em> biomass is emerging as a promising strategy to enhance its functional value. However, achieving a balance between efficient nanoparticle uptake and the preservation of biomass accumulation remains a key challenge. This study investigated the effects of two silver nanoparticles types - synthesized via electrical discharge in distilled water (AgNPs) and stabilized with potassium carbonate (AgNPs K₂CO₃) - on biomass accumulation, biochemical composition, oxidative stress markers, and nanoparticle uptake. Both nanoparticle types were effectively bioaccumulated, with retention efficiencies reaching up to 92 %, without entirely suppressing biosynthetic activity. AgNPs K₂CO₃ enhanced <em>Arthrospira platensis</em> biomass accumulation and antioxidant activity, while both nanoparticles' types reduced protein and carbohydrate content. Lipid levels in the biomass varied depending on nanoparticle type and their concentration. Notably, malondialdehyde levels remained comparable to the control, suggesting effective oxidative stress management. The combination of high silver uptake with preserved redox balance and acceptable biochemical parameters indicates that <em>Arthrospira platensis</em> biomass enriched with silver nanoparticles, particularly K₂CO₃-stabilized, can be considered for safe and controlled biotechnological applications.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104253"},"PeriodicalIF":4.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737972","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}

{"title":"Effect of nano-zinc oxide concentration on nutrient and antibiotics removal performance by microalgae-bacteria-fungi consortia system treating aquaculture wastewater","authors":"Bei Lu ,&nbsp;Chunzhi Zhao ,&nbsp;Zhengfang Wang ,&nbsp;Yongjun Zhao ,&nbsp;Jing Zhang","doi":"10.1016/j.algal.2025.104247","DOIUrl":"10.1016/j.algal.2025.104247","url":null,"abstract":"<div><div>In the context of the booming global aquaculture industry, the discharge of aquaculture wastewater containing nutrients and antibiotic residues has led to serious environmental problems. This study explored the effect of nano-zinc oxide (nZnO) concentration on the nutrient and antibiotics removal performance of microalgae-bacteria-fungi consortia systems. Four different algae treatment technology systems were established. The results showed that Strain 3 (<em>Chlorella ellipsoidea</em> + S395–2 + <em>Clonostachys rosea</em>) had the best performance. A concentration of 40 mg/L nZnO was most beneficial for the growth of the consortia, enhancing photosynthetic performance and promoting the removal of nutrients such as COD, TN, and TP. The growth rates of all strains reached the maximum, and Strain 3 had the highest removal efficiencies of COD (88.52 ± 8.19 %), TN (86.44 ± 8.05 %), and TP (86.51 ± 8.25 %) among the four strains under this concentration. For antibiotics removal, a 40 mg/L nZnO concentration was optimal. Strain 3 showed the highest removal rates for various antibiotics. The removal rates of tetracycline (TC) and oxytetracycline (OTC) by Strain 3 at 40 mg/L nZnO reached 99.08 ± 0.62 % and 96.45 ± 2.63 % respectively. The removal mechanisms involved the synergistic effects among microalgae, bacteria, and fungi, as well as the influence of nZnO on the metabolic activities of microorganisms. The optimized symbiotic system and nZnO concentration regulation strategy proposed in this study not only efficiently treat aquaculture wastewater but also reduce chemical usage through natural microbial metabolism, providing a cost-effective and eco-friendly sustainable solution for wastewater remediation.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104247"},"PeriodicalIF":4.5,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144771069","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}

{"title":"Microalgae-associated Stenotrophomonas maltophilia enhances lutein production and biostimulant activity in Monoraphidium sp.","authors":"João Artur Câmara Manoel ,&nbsp;Karolína Šterbová ,&nbsp;Mohit Kumar Saini ,&nbsp;Daniela Bárcenas-Pérez ,&nbsp;José Cheel ,&nbsp;Tomáš Grivalský ,&nbsp;Gergely Ernő Lakatos ,&nbsp;Martin Lukeš ,&nbsp;Petra Urajová ,&nbsp;Alice Ferreira ,&nbsp;Daniel Figueiredo ,&nbsp;Luísa Gouveia ,&nbsp;Jiří Masojídek ,&nbsp;Kumar Saurav","doi":"10.1016/j.algal.2025.104250","DOIUrl":"10.1016/j.algal.2025.104250","url":null,"abstract":"<div><div>Photosynthetic organisms like microalgae can collect solar energy and transform it into biochemical compounds as other forms of energy that can be utilized in metabolic processes. In nature, microalgae coexist with bacterial communities and may maintain a symbiotic relationship. In the current study, a heterotrophic bacterium, <em>Stenotrophomonas maltophilia</em> was isolated from the phycosphere of a cold-adapted green microalga <em>Monoraphidium</em> sp. (further abbreviated as <em>Monoraphidium</em>). By using advanced liquid chromatography-high-resolution tandem mass spectrometry (LC-HRMS/MS), we were able to detect homoserine lactones (HSLs): 3OHC12-HSL, 3OHC10-HSL, 3OHC14-HSL, C10-HSL, C8-HSL, and OC14-HSL, produced by <em>S. maltophilia</em>. Further, the role of this bacterium in establishing intricate relationships and its implication on biotechnological potential was evaluated. Significant improvements were found in the lutein production of the <em>Monoraphidium</em> culture with bacterial supplements, achieving about 19.3 ± 0.88 mg g⁻¹ DW of this carotenoid compared to 13.7 ± 1.87 mg g⁻¹ DW in the control, which represents an increase of about 40 %. Furthermore, the biostimulant potential of <em>Monoraphidium</em> was evaluated using the germination tests with tomato and barley seeds. A higher germination index was observed with improvements of 55 % in tomato and 110 % in barley, respectively, as compared to the control culture, which was related to the microalgae's growth stage. The role of the bacterium was evaluated in how the intricate relationships with the microalgal culture can affect its biotechnological potential (e.g., biostimulant activity and lutein production). The current work expands our knowledge towards designing an efficient polyculture based on complementary traits and metabolic potential to maximize the yield and bioactivity in algal biotechnology.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104250"},"PeriodicalIF":4.5,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750360","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}

{"title":"Physiological and molecular responses of the dinoflagellate Gymnodinium impudicum to phosphorus deficiency: Insights into dissolved organic phosphorus utilization strategies","authors":"Yujiao Chen ,&nbsp;Mingyang Xu ,&nbsp;Yinghao Wang ,&nbsp;Honglin Chen ,&nbsp;Xiaotong Cheng ,&nbsp;Nanjing Ji ,&nbsp;Lingjie Zhou ,&nbsp;Song Sun ,&nbsp;Xin Shen","doi":"10.1016/j.algal.2025.104245","DOIUrl":"10.1016/j.algal.2025.104245","url":null,"abstract":"<div><div>Phosphorus (P) is a vital macronutrient essential for phytoplankton growth. However, in certain oceanic regions, P is often scarce, and numerous studies have demonstrated that dinoflagellates exhibit a robust adaptive capacity, including the utilization of dissolved organic phosphorus (DOP), to cope with P deficiency. In this study, we investigated the physiological and molecular responses of the dinoflagellate <em>Gymnodinium impudicum</em>, a species frequently associated with coastal blooms, to P-deficient conditions, with a focus on its DOP utilization strategies. Our findings reveal that P deficiency significantly inhibits the growth of <em>G. impudicum</em>, and the algal cells likely adapt to P deficiency through phospholipid degradation mechanisms. Among the tested DOP sources, glucose-6-phosphate (G6P), adenosine triphosphate (ATP), and sodium tripolyphosphate (TPP) were able to support the growth of <em>G. impudicum</em>, whereas glyphosate (Gly) was not efficiently utilized. Notably, an increase in alkaline phosphatase activity was observed during cultivation under P-deficient conditions. Furthermore, ATP was assimilated following extracellular degradation, while G6P appeared to be directly absorbed via endocytosis. This study provides critical insights into the adaptive strategies of <em>G. impudicum</em> under P-deficient conditions, offering a theoretical foundation for assessing the potential risks of this species bloom in both P-deficient and eutrophic environments.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104245"},"PeriodicalIF":4.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724976","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}

{"title":"Assessment of the influence of the hydraulic retention time on the tertiary and quaternary treatment of a high rate algal pond","authors":"Lois Regueira-Marcos ,&nbsp;Rebeca López-Serna ,&nbsp;Octavio García-Depraect ,&nbsp;Maria del Rosario Rodero ,&nbsp;Ana Alcoceba ,&nbsp;Raúl Muñoz","doi":"10.1016/j.algal.2025.104239","DOIUrl":"10.1016/j.algal.2025.104239","url":null,"abstract":"<div><div>The influence of the hydraulic retention time (HRT) on the performance of a high-rate algal pond (HRAP) with biomass settling and recycling for tertiary and quaternary treatment of domestic wastewater was herein evaluated. A decrease in the HRT from 4 days (P1) to 2 days (P2) did not entail substantial differences in the removal efficiencies of nitrogen (54.3 ± 11.6 and 54.0 ± 7.3 %), phosphorous (42.6 ± 21.6 and 39.3 ± 35.8 %), organic carbon (33.5 ± 12.2 and 38.4 ± 26.4 %) and inorganic carbon (55.6 ± 10.8 and 50.5 ± 26.8 %). <em>Escherichia coli</em> (0.7 ± 1.4 and 3.8 ± 5.2 CFU-mL⁻¹, respectively) and suspended solid (10 mg TSS-L⁻1 average) concentrations in the effluent remained below European discharge limits. However, the effluent total nitrogen (TN) concentration exceeded those limits, despite the high NH₄⁺ removal capacity (&gt; 95 %) of the HRAP. Regarding CECs, 9 compounds were removed below their quantification limit in P1, and 5 compounds in P2. The HRT exhibited a low impact on the total removal of CECs, with removal efficiencies of 57.6 ± 4.0 % and 63.7 ± 3.1 % during P1 and P2, respectively. The CEC concentrations retained in biomass increased at decreasing the HRT, with 723 and 1026 μg L⁻¹ at P1 and P2, respectively. Most of these compounds belonged to the group of fluoroquinolones or anti-inflammatory drugs. Overall, HRAPs represent a cost-effective technology platform for tertiary and quaternary treatment of domestic wastewaters.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104239"},"PeriodicalIF":4.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724977","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}

{"title":"Research progress in the technology of active substance extraction from red algae","authors":"Jinqi Qu ,&nbsp;Runze Liu ,&nbsp;Wensong Yu ,&nbsp;Wenjun Li ,&nbsp;Chenyang Lu ,&nbsp;Song Qin","doi":"10.1016/j.algal.2025.104244","DOIUrl":"10.1016/j.algal.2025.104244","url":null,"abstract":"<div><div>Seaweeds are a valuable component of marine biological resources, with numerous species and high economic value. Red algae, an important taxonomic group of seaweed, consist of approximately 6000. In addition to wild red algae, several species of red algae with significant economic value are cultivated to varying degrees across the globe. Red algae are rich in bioactive compounds, including carrageenan, phycoerythrin, polyunsaturated fatty acids, catechol, and niacinamide. These compounds have demonstrated antioxidant, antimicrobial, anti-inflammatory, anticancer, and immunomodulatory properties. Various extraction methods, such as solid liquid extraction and ultrasound-assisted extraction, have been employed to isolate these compounds. The objective of this review is to summarize the bioactive compounds found in red algae and the techniques utilized for their extraction. The information provided will serve as a reference for future applications in this field.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"91 ","pages":"Article 104244"},"PeriodicalIF":4.5,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749502","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}