FOOD CHEMISTRY
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2020
·
IF 6.306
Mei-Jia Shi,Fan Wang,Hui Jiang,Wen-Wen Qian,Yuan-Yuan Xie,Xiao-Yi Wei,Tao Zhou
To explore the potential application of enzymatic degraded polysaccharides from Enteromorpha prolifra (EEP) as antioxidant in fish oils, a stable fish oil emulsion system incorporating EEP was established. Effects of emulsifier (Tween 80, gum arabic and lecithin) and EEP concentration on the physical characteristics of fish oil emulsions were investigated. The results indicated that Tween 80 was the best choice, and 1% (w/w) of EEP was the optimum concentration for the preparation of fish oil emulsions. Influence of EEP on the oxidative stability and physical stability of fish oil emulsions was compared with that of antioxidants V E and TBHQ by determining the physical properties, lipid hydroperoxide formation, secondary reaction products formation, pH and long chain polyunsaturated fatty acid content, during storage at 45 °C. The results indicated that the fish oil emulsion system (5% oil, 1% EEP and 1% Tween 80, w/w) possessed good physical and oxidative stabilities.
研究领域:
食品科学
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生物化学
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DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2022
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IF 6.437
Hao Qi,Qirong Yang,Zhaoying Li,Chenyu Yang,Xinru Ma,Haoxi Ben
The mechanism of gas-phase products from pyrolysis of polysaccharides from Enteromorpha prolifera (PE) is researched. The sulfated polysaccharides are the most important polysaccharides in Enteromorpha prolifera . The molecular dynamics (MD) method is used to simulate the pyrolysis process of sulfated polysaccharides of Enteromorpha prolifera . Combined with the results of the pyrolysis simulations and density functional theory (DFT), rhamnose , glucuronic acid , glucose, and xylose are used as model compounds to estimate and calculate the reaction paths of hydrogen and carbon monoxide . In addition, fixed-bed pyrolysis experiments are performed with the above four monomers . The pyrolysis simulation results show that the pyrolysis process of sulfated polysaccharides is approximately divided into three stages: low-temperature, medium-temperature, and high-temperature stages. Gas-phase products are mainly produced in the high-temperature stage, and the main components of syngas are hydrogen, methane, and carbon monoxide. The simulation and experimental results show that pyrolysis of xylose is the most likely to generate hydrogen, followed by glucose, rhamnose, and glucuronic acid. The process of producing carbon monoxide from monomers goes through reactions such as dehydration, isomerization , C-C bond breakage, and decarbonylation . Moreover, the results of fixed-bed experiments indicate that when the four monomers are pyrolyzed individually, the highest proportions of hydrogen, carbon monoxide, and methane in the gas-phase products are obtained from the pyrolysis of xylose, glucuronic acid, and rhamnose. When the four monomers are mixed and then pyrolyzed, the proportion of hydrogen and carbon monoxide in the obtained gas-phase products decreases, and the proportion of carbon dioxide increases.
研究领域:
生物化学
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能源科学
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DOI
高影响因子
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS
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2026
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IF 1.4
Yining Zhang,Yuxia Zhao,Jiatao Hu,Yu Luan,Zhaoxin Fan,Hao Lv,Shuaiyi Zhang,Xia Wang
Random lasers (RLs) differ fundamentally from conventional lasers by replacing engineered optical cavities with disorder-mediated multiple scattering feedback, enabling cavity-free emission through photon interactions in disordered gain media. RLs have demonstrated many application potentials in the domains of optics and optoelectronics because of their low coherence, multidirectionality, and multiple wavelengths. However, the principle and procedure of RL generation, as well as the method for achieving low-threshold emission, still present difficulties. This study demonstrates the replica symmetry breaking (RSB) in coherent RL systems utilizing Enteromorpha prolifera (EP), a marine bio-scatterer exhibiting multiscale photonic architecture. The transition from the photon paramagnetic phase to the spin glass phase is seen with the increase of the pump energy in this random liquid phase system. The multiscale structure of EP enables efficient dye adsorption while enhancing photon scattering to amplify optical feedback, thereby achieving stable coherent random lasing with a low threshold. Power Fourier transform analysis was employed to calculate the effective optical cavity length of the RL system, depicting the coherent lasing dynamics and determining the free spectral range. The bio-enabled RL system demonstrated remarkable spatial coherence control with good speckle-free imaging potentials through quantitative analysis of speckle contrast and derived mode numbers, revealing pump-energy-dependent correlations that elucidate intermodal interaction dynamics. These findings advance the fundamental understanding of disordered photonic systems while establishing a sustainable framework for engineering bio-derived RL sources with tailored coherence properties.
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高影响因子
POLYMER COMPOSITES
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2020
·Vol. 42
·期 4
·1712-1726
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IF 2.265
Zhichao Zhang,Xin Liu,HuiXin Wang,HaiFeng He,Ruiqin Bai
Due to the frequent occurrence of Enteromorpha prolifera “green tide” in recent years, how to solve the ecological disaster brought by the green tide and make maximal use of the Enteromorpha prolifera have become an urgent problem. In order to realize the resource utilization of marine biomass, we extract nanofibrillated cellulose (NFC) with high aspect ratio from Enteromorpha prolifera . Filamentous NFC is successfully extracted at nanometric scale with a diameters range of 20 ~ 40 nm, a length of several microns, and a crystallinity index of 57.2%. Then NFC/polyvinyl alcohol (PVA) composite films were prepared with NFC as fillers. In addition, for comparison, nanocrystals cellulose (NCC) with small aspect ratio was isolated from microcrystalline cellulose (MCC) to prepare NCC/PVA composite films. It is shown that because Enteromorpha prolifera ta NFC has a higher aspect ratio, it is easier to interpenetrate with PVA to form a dense network, and the lower concentration ensures the better dispersion of NFC in the matrix, so its enhancement effect on PVA composite films is better than that of NCC. When the NFC content was 0.1 wt %, the light transmittance of NFC/PVA composite film could reach more than 94%, and the swelling degree was 250%, which is 29% lower than that of the pure PVA film, the water resistance was improved. At the same time, the tensile strength, elastic modulus and toughness were 99.1%, 1547% and 117.9% respectively, which are higher than those of PVA.
研究领域:
材料科学
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海洋生物学
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高影响因子
FOOD CHEMISTRY
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2017
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IF 4.529
Le-Le Shao,Jie Xu,Mei-Jia Shi,Xiao-Ling Wang,Yin-Ting Li,Li-Min Kong,Robert C Hider,Tao Zhou
In order to improve the antioxidant and antimicrobial abilities, hydroxamated degraded polysaccharides from Enteromorpha prolifera (HCDPE) were prepared from the corresponding carboxymethylated degraded polysaccharides (CDPE). HCDPE was characterized by FT-IR. The weight-average molecular weight of HCDPE was determined as 55.4 kDa. The in vitro antioxidant activity of HCDPE was evaluated by determining the radical (1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl and superoxide anion radicals) scavenging abilities and total antioxidant activity. It was found that DPPH radical scavenging ability and total antioxidant activity of HCDPE were significantly improved compared to those of CDPE. The inhibitory effects of polysaccharides against the five bacterial strains ( Bacillus subtilis , Staphylococcus aureus , Escherichia coli , Pseudomonas aeruginosa , Salmonella spp.) were also evaluated by bacterial inhibition zone and minimum inhibitory concentration (MIC) assays. The results indicated that CDPE and HCDPE possess marked antimicrobial ability, while such an effect was not observed for the crude polysaccharides (PE) and the degraded polysaccharides (DPE).
研究领域:
海洋生物学
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食品科学
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药学
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DOI
PubMed
高影响因子
Journal of Cleaner Production
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2023
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IF 11.1
Hao Qi,Qirong Yang,Xinru Ma,Mengyu Wan,Zijun Zhang,Haoxi Ben,Lianghuan Wei,Zhaoying Li
The large-scale flooding of Enteromorpha prolifera (EP) forms “green tide”, which causes severe environmental problems. However, EP, an algal biomass , can be converted into syngas via pyrolysis . In this study, the pyrolysis mechanisms of the main compositional models of EP used to produce syngas are investigated using a combination of molecular dynamics simulations and fixed-bed experiments. Rhamnose (Rha), glucuronic acid (GlcA), aspartic acid (Asp), glutamic acid (Glu), and alanine (Ala) are used as the model compounds. The results indicate that H 2 is primarily produced by Glu (reached 24.68 vol%), followed by Asp and Ala, and CO is produced by Ala (reached 44.94 vol%), Glu, and Asp. The molecular dynamics simulation results indicate that the energy barriers for the pyrolysis of Glu and Ala to produce H 2 and CO, respectively, are the lowest. Three amino acids undergo dehydration, deamination, and decarboxylation . Moreover, the synergistic effect of the three amino acids in co-pyrolysis is reflected in the production of hydrogen groups from Asp; and the hydrogen group then attacks Glu to seize the hydrogen group on it to produce hydrogen . In addition, the H 2 content in the syngas produced by the separate pyrolysis of Rha (17.75 vol%) and GlcA (17.35 vol%) are similar and lower than those of the Rha and GlcA mixtures (19.12 vol%). The CO content in the pyrolysis gas of GlcA is higher than that of Rha. The simulation results prove that the amino acids undergo dicarboxylic and deamination reactions to produce amino acids and CO 2 . Meanwhile, polysaccharide sulfate breaks glycosidic bonds , producing free radicals such as hydrogen and hydroxyl groups at 700 K. When the temperature rises to 1900 K, the products of the previous stage further break the bond, producing small-molecule gases. However, the addition of polysaccharide model compounds promotes the production of CO 2 and C O groups and inhibits the formation of CO. Co-pyrolysis cannot increase H 2 , and the synergistic effect is not significant. Moreover, Ni and SAPO-34 exhibited good catalytic activities , which could increase syngas production. A raw materials to catalyst ratio of 5:1 is a good choice because it improves the H 2 and CO contents and makes economical use of Ni. With the increase of Ni catalyst cycles, H 2 content also shows a decreasing trend, from 22.86 vol% to 16.27 vol% (third cycle). With the number of SAPO-34 cycles, the increase of CO content, from 28.66 vol% to 32.67 vol% is explained by the increase in the specific surface area of the catalyst caused by repeated use, which increases the selectivity of C2 and enhances the ability of decarbonylation. This study focuses on the syngas reaction paths and pyrolysis reactions of different EP model compounds. The pyrolysis mechanism of EP to produce syngas is determined using a combination of experiments and simulations, providing a method for the energy utilization of EP.
研究领域:
环境科学
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能源科学
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生物化学
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DOI
高影响因子
Journal of Water Process Engineering
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2026
·
IF 6.6
Wei Bao,Weijun Tian,Mengyuan Zou,Ke Yang,Bingkun Liu,Minghan Li,Bingjie Huo,Xinran Yu,Xinbo Wang
MIL-101(Fe)-modified E. prolifera biochar (MIL-BC) was successfully synthesized. • MIL-BC showed 89.14% enrofloxacin removal in mariculture wastewater. • MIL-BC showed over 86% removal efficiency at pH 3–5 and salinity 15–35‰. • Adsorption followed pseudo-second-order and Freundlich models. • Experimental and DFT results unraveled synergistic adsorption mechanisms. In this study, a metal-organic framework (MOF)-modified biochar (MIL-BC) was synthesized by decorating Enteromorpha prolifera -derived pristine biochar (BC) with MIL-101(Fe). Compared to BC, the adsorption performance of MIL-BC for enrofloxacin (ENR) in mariculture wastewater was significantly enhanced to 89.14%, and it maintained a high adsorption efficiency under varying solution pH and salinity conditions. Notably, this high adsorption efficiency remained practically stable across varying solution pH and salinity levels. Under acidic pH conditions, MIL-BC exhibited both acid resistance and high adsorption efficiency, achieving a peak adsorption removal of 97.77%. The adsorption kinetics and isotherms were well described by the pseudo-second-order and Freundlich models, respectively, indicating a heterogeneous multilayer adsorption process. The adsorption mechanisms primarily involved a synergistic combination of pore filling, π-π interactions, hydrogen bonding, complexation, electrostatic interactions, and hydrophobic interactions. Furthermore, density functional theory (DFT) calculations corroborated that the higher adsorption energy of MIL-BC fundamentally contributes to its enhanced adsorption performance. In the treatment of real seawater aquaculture wastewater, MIL-BC demonstrated exceptional adsorption performance, validating its tremendous potential as a high-performance adsorbent. Maintaining a removal efficiency of over 70% after five cycles. Consequently, this study offers a viable and highly promising technical pathway for the efficient removal of antibiotics from seawater aquaculture effluents. Download: Download high-res image (182KB) Download: Download full-size image
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高影响因子
ANALYTICA CHIMICA ACTA
·
2021
·
IF 6.558
Qi Dai,Xiaojuan Wang,Cai Liu,Zhenzhen Feng,Baosheng Ge,Xiqi Ma,Zhixiong Zhang,Jinyi Yu,Xiaoqiang Wang,Fang Huang
Melanoma, the skin cancer with the highest mortality rate, can be diagnosed at the early stage by detecting unique biomarkers. Over-expressed tyrosinase has been confirmed by dozens of clinical studies as an independent factor to evaluate the malignancy of melanoma. Using Enteromorpha Prolifera as the raw material, herein we develop a novel fluorescent probe , ECDY, which can sensitively detect the tyrosinase activity in different types of cells. More importantly, melanoma cells can be specifically distinguished through cell lysate measurements as well as the whole-cell imaging technique. Mechanically, the tyrosine groups on the surface of ECDY can be specifically recognized by tyrosinase and further converted into dopaquinone, which consequently causes the intramolecular fluorescence quenching of the probe through photoinduced electron transfer (PET). Tyrosinase can be detected within 20 min in the solution, and the detection limit is as low as 0.067 U mL −1 . For the in vitro demonstration, we evaluate the fluorescence decay of ECDY in response to the intracellular tyrosinase activity within the lysate of various cell lines, including non-cancerous, non-melanoma cancerous, and mouse melanoma ones. The experimental results verify that ECDY can accurately measure the apparent tyrosinase activity in different cell lines and detect melanoma cell lysate specifically. The confocal fluorescence imaging experiments further demonstrate that ECDY can distinguish melanoma cells from others significantly. We believe that ECDY provides a new strategy for the efficient detection of tyrosinase and melanoma cells, and is expected to apply as a clinical diagnosis platform.
研究领域:
癌症诊断
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分子生物学
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生物化学
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荧光成像
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生物医学工程
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
·
IF 7.7
Tingting Yan,Yuying Zhang,Hengyu Lu,Jun Zhao,Chengrong Wen,Shuang Song,Chunqing Ai,Jingfeng Yang
An alcohol-induced liver injury model was induced in C57BL/6 mice to assess the protective efficacy of Enteromorpha prolifera polysaccharides (EP) against liver damage. Histological alterations in the liver were examined following hematoxylin-eosin (H&E) staining. Biochemical assay kits and ELISA kits were employed to analyze serum and liver biochemical parameters, as well as the activity of antioxidant enzymes and alcohol metabolism-related enzymes. The presence of oxidative stress-related proteins in the liver was detected using western blotting. Liquid chromatography and mass spectrometry were used to profile serum metabolites in mice. The findings demonstrated that EP-H (100 mg/Kg) reduced serum ALT and AST activity by 2.31-fold and 2.32-fold, respectively, when compared to the alcohol-induced liver injury group. H&E staining revealed a significant attenuation of microvesicular steatosis and ballooning pathology in the EP-H group compared to the model group. EP administration was found to enhance alcohol metabolism by regulating metabolite-related enzymes (ADH and ALDH) and decreasing CYP2E1 expression. EP also modulated the Nrf2/HO-1 signaling pathway to bolster hepatic antioxidant capacity. Furthermore, EP restored the levels of lipid metabolites (Glycine, Butanoyl-CoA, and Acetyl-CoA) to normalcy. In summary, EP confers protection to the liver through the regulation of antioxidant activity and lipid metabolites in the murine liver.
研究领域:
药理学
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毒理学
·
分子生物学
·
生物化学
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DOI
PubMed
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2021
·
IF 3.995
Xiaotong He,Junbin Liu,Biyu Kang,Xinye Li,Lingxing Zeng,Yanru Liu,Jianbin Qiu,Qingrong Qian,Mingdeng Wei,Qinghua Chen
SnS 2 has aroused great interests for application of sodium-ion batteries, because of its graphene-like structure and high theoretical capacity. Herein, we present an effective nanocasting strategy to fabricate the SnS 2 / enteromorpha prolifera derived carbon (SnS 2 /EPC) composite, whose microstructure anchors the SnS 2 nanosheets on enteromorpha prolifera (EP) derived carbon. It can effectively solve the problems of poor conductivity and volume expansion of SnS 2 electrode during charging and discharging process. The optimized SnS 2 /EPC could deliver high reversible capacity of 443 mA h g −1 at 0.1 A g −1 , and maintain reversible capacity of 340 mA h g −1 at high rate of 2 A g −1 after 450 cycles, indicating that SnS 2 /EPC is a promising anode material for sodium storage.
研究领域:
材料科学
·
能源存储
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产品关联
DOI
高影响因子
FUEL
·
2020
·
IF 5.578
Xianyao Yan,Yingjie Li,Chaoying Sun,Zeyan Wang
In this work, H 2 production performances from Enteromorpha prolifera and its char by absorption-enhanced steam gasification using Ce-doped CaO material were investigated. The Ce-doped CaO material improves the H 2 production from Enteromorpha prolifera by steam gasification, which achieves 79.0 vol% H 2 in the syngas. The Ce-doped CaO material with the mass ratio of CeO 2 /CaO = 10:90 seems more appropriate for high H 2 production, tar and char conversion. The presence of CeO 2 leads to good cyclic stability in H 2 production from Enteromorpha prolifera char during the gasification/calcination cycles. After 20 cycles, H 2 concentration and yield from Enteromorpha prolifera char achieve 77.8 vol% and 141.8 mL/g using Ce-doped CaO material, respectively. The CeO 2 facilitates the conductivity of electrons in CaO surface due to the existence of Ce 3+ species, thus CO 2 capture, water gas shift, and steam methane reforming reactions are promoted by CeO 2 . The Ce-doped CaO material maintains the porous microstructure and fine particles during the cycles due to the support of CeO 2 . Therefore, H 2 productions from Enteromorpha prolifera and its char by absorption-enhanced steam gasification using Ce-doped CaO material appear promising.
研究领域:
能源与环境科学
·
生物质能
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2024
·
IF 4.3
Jingran Li,Wen Zhu,Le Gao,Xuetao Liang,Qi Yang
This study successfully synthesized magnetic iron-manganese biochar (F1M3BC) and iron-manganese chitosan biochar (Chi-F1M3BC) using Enteromorpha prolifera (EP) as the raw material, aiming to efficiently remove hexavalent chromium (Cr(VI)) from water. Compared to F1M3BC, Chi-F1M3BC, after chitosan cross-linking encapsulation, exhibited significant advantages in terms of specific surface area, pH adaptability, and adsorption performance. The specific surface area of Chi-F1M3BC reached 101.47 m³/g, approximately double that of F1M3BC (52.89 m³/g), making it rich in reactive groups for Cr(VI) removal. The addition of chitosan elevated the pH pzc value of Chi-F1M3BC from 5.5 to 9, and the abundant active groups enabled it to efficiently remove Cr(VI) over a wider pH range. Under 30 °C conditions, 0.5 g/L of Chi-F1M3BC could completely remove 30 mg/L of Cr(VI) solution within 1 h. Adsorption isotherm and kinetic studies indicated that Chi-F1M3BC complied with the Langmuir model and pseudo-second-order kinetics. At 30 °C, the adsorption capacity of Chi-F1M3BC reached 104.5 mg/g, approximately twice that of F1M3BC (58.93 mg/g). Moreover, after five consecutive usage cycles, the removal efficiency of Cr(VI) by Chi-F1M3BC only slightly decreased by 3%, demonstrating its superior stable removal performance. Subsequent characterization and experimental investigations elucidated the elimination of Cr(VI) by Chi-F1M3BC, achieved through the synergistic interplay of ion exchange, electrostatic attraction involving surface hydroxyl and amino functional groups, chelation, and the reduction of iron and manganese oxides. In conclusion, the synthesized Chi-F1M3BC has demonstrated its efficiency and stable adaptability in removing Cr(VI), coupled with the additional benefit of utilizing waste Enteromorpha prolifera.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
危险品化学品经营许可证（带存储）