COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Zhenxing Tan,Junxian Wu,Yuyin Lin,Wenxia Wang,Yong Yuan,Lihua Zhou
To effectively eliminate the widely detected naproxen (NPX) pollutant in the aqueous environment, it is essential to explore eco-friendly materials. Recently, biochar as an adsorbent material attracted considerable attention, owing to its unique ability to remove organic pollutants from water. Herein, Auricularia auricula biochar (a-BC-800) was fabricated through alkali treatment of Auricularia auricula biomass for activation, followed by carbonization at 800°C. Characterization via scanning electron microscopy and Brunauer-Emmett-Teller revealed that a-BC-800 possesses a very high specific surface area (SSA) of 1660 m²/g and a complex mesoporous structure properties. The combination of alkali activation and high-temperature carbonization was crucial for enhancing the SSA of the biochar. a-BC-800 exhibited a maximum adsorption capacity of approximately 300 mg/g, outperforming most NPX adsorbent materials reported in the literature. The NPX adsorption process closely aligns with the pseudo-second-order kinetic model and the Freundlich isotherm model. Analysis of the adsorption mechanism revealed that π-π interactions, pore filling, and van der Waals forces were the primary mechanisms responsible for the efficient adsorption of NPX by a-BC-800. This study demonstrates that the combination of high-temperature treatment and alkali activation is an effective strategy for enhancing the adsorption performance of Auricularia auricula biochar for NPX, offering significant potential for the efficient removal of environmental pollutants.
研究领域:
环境科学
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材料工程
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化学工程
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水污染控制
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吸附技术
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DOI
高影响因子
Food Bioscience
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2024
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IF 4.8
Bozheng Li,Siqi Wang,Furui Li,Xuejun Liu
To investigate the interaction between polyphenols and soluble dietary fiber, we prepared complexes of Auricularia auricula-judae soluble dietary fiber (ASDF) with catechin (CC) and chlorogenic acid (CGA) using the isothermal adsorption method. The resulting complexes were ASDF-CC complex (ASDF-CC) and ASDF-CGA complex (ASDF-CGA). Spectral analysis confirmed the successful construction of ASDF-polyphenol complexes. The results of the sugar composition analysis indicate that the monosaccharide composition of ASDF is not altered by the non-covalent binding of CC and CGA. The molecular weights of ASDF-CC and ASDF-CGA were 102.26 × 10 3 Da and 99.87 × 10 3 Da, respectively, which were significantly larger than the molecular weight of ASDF. Thermal analyses showed that ASDF-CC and ASDF-CGA are more thermally stable than ASDF. Morphological analysis revealed that the particle size of ASDF-polyphenol complexes decreased, while the specific surface area increased, and the surface became sparser and more uniformly arranged compared to ASDF. The results of the cholesterol and bile acid salt adsorption capacity assays showed that both complexes exhibited increased in vitro hypolipidemic activity compared to ASDF. Notably, the ASDF complex with CC and CGA effectively enhanced the bio-accessibility of CC and CGA. In conclusion, the interaction between soluble dietary fibers and phenolic compounds through non-covalent bonds is a feasible approach to enhance their bioactivity.
研究领域:
食品科学
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营养学
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生物化学
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药学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Hao Huang,Junxian Wu,Zhenxing Tan,Wenxia Wang,Yong Yuan,Lihua Zhou
Naproxen (NPX), a persistent pharmaceutical pollutant, requires efficient degradation for environmental safety. The activation of peroxydisulfate (PDS) has proven to be an effective advanced oxidation process method for the degradation of refractory organic pollutants. This study investigates the enhancement of Auricularia auricula -derived biochar's catalytic performance in PDS activation through modification with nitrogen-doped carbon quantum dots (CQD).The CQD were synthesized via one-step hydrothermal treatment of urea and ammonium citrate. The modified biochar, denoted as CQD-a-BC-800, was obtained by carbonizing the CQD with KOH-activated Auricularia auricula biochar (a-BC) at 800 °C. Compared with a-BC-800, which was obtained by carbonizing a-BC at 800 °C, CQD-a-BC-800 exhibited a significantly enhanced specific surface area, reaching 1.58 times that of a-BC-800 (2622 m 2 /g vs. 1660 m 2 /g)，and the nitrogen content increased from 0.93 % to 2.11 %. The catalytic activity of CQD-a-BC-800 for PDS activation was higher than that of a-BC-800, U-AC-a-BC-800 (directly obtained by carbonizing the mixture of urea, ammonium citrate and a-BC-800), and the mixture of a-BC-800/CQD-800. The NPX degradation ratereached 96.6 % within 30 mins using CQD-a-BC-800 with higher PDS utilization efficiency. This represents a 14.2 % and 6 % increase in NPX degradation rate compared to a-BC-800/PDS and a-BC-800/CQD-800/PDS,respectively..The growth of single-cell Chlorella and Test toxicity prediction indicated that the biotoxicity of intermediate products generated during NPS degradation was lower. Moreover, CQD-a-BC-800/PDS exhibited a wide pH tolerance range (pH 3–9).The mineralization degree of NPX was 80.9 %. Mechanistic studies revealed free radical pathways (SO₄• − , •OH) and non-free radical pathways ( 1 O₂, electron transfer). This work presents an innovative approach combining alkali activation, high-temperature carbonization, and CQD integration to optimize biochar performance for PDS activation, offering a sustainable solution for environmental remediation.
研究领域:
环境科学
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化学工程
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材料科学
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催化
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水污染控制
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产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
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2019
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IF 6.044
Yue Su,Liang Li
The structural characterization and antioxidant activity of four Auricularia polysaccharides (A.cornea ACP)、A.auricula(AAP)、A.polytricha (APP) and M.fungus(MFP)) were studied in this paper. The results shown: polysaccharides of four Auricularia were mainly composed of mannose and galactose, all polysaccharides contained uronic acid and pyran ring structure with spectroscopy and NMR analysis. There was a significant difference in the total antioxidant capacity and APP was significantly higher than the other polysaccharides. The ability of APP to scavenge DPPH radicals and hydroxyl radicals was significantly higher than that of other polysaccharides, respectively. The molecular weight was significantly positively correlated with DPPH radicals, superoxide anion radicals and hydroxyl radicals. Total antioxidant capacity was significantly negatively correlated with fucose and galactose. The result indicated that fucose and galactose jointly determine total antioxidant capacity. The polysaccharide from four Auricularia had good oxidation resistance and could be used as natural antioxidants.
研究领域:
生物化学
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食品科学
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药理学
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DOI
PubMed
高影响因子
Life-Basel
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2025
·Vol. 15
·期 8
·1236
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IF 3.4
Ming Zhao,Huiyan Huang,Bowen Li,Yu Pan,Chuankai Wang,Wanjia Du,Wenliang Wang,Yansheng Wang,Xue Mao,Xianghui Kong
With the acceleration of the pace of life, increased stress levels, and changes in lifestyle factors such as diet and exercise, the incidence of diseases such as cancer and immunodeficiency has been on the rise, which is closely associated with the impaired antioxidant capacity of the body. Polypeptides and polysaccharides derived from edible fungi demonstrate significant strong antioxidant activity and immunomodulatory effects.Auricularia auricula, the second most cultivated mushroom in China, is not only nutritionally rich but also offers considerable health benefits. In particular, its polysaccharides have been widely recognized for their immunomodulatory activities, while its abundant protein content holds great promise as a raw material for developing immunomodulatory peptides. To meet the demand for high-value utilization ofAuricularia auricularesources, this study developed a key technology for the stepwise extraction of polypeptides (AAPP1) and polysaccharides (AAPS3) using a composite enzymatic hydrolysis process. Their antioxidant and immunomodulatory effects were assessed using cyclophosphamide (CTX)-induced immune-suppressed mice. The results showed that both AAPP1 and AAPS3 significantly reversed CTX-induced decreases in thymus and spleen indices (p< 0.05); upregulated serum levels of cytokines (e.g., IL-4, TNF-α) and immunoglobulins (e.g., IgA, IgG); enhanced the activities of hepatic antioxidant enzymes SOD and CAT (p< 0.05); and reduced the content of MDA, a marker of oxidative damage. Intestinal microbiota analysis revealed that these compounds restored CTX-induced reductions in microbial α-diversity, increased the abundance of beneficial bacteria (Paramuribaculum,Prevotella;p< 0.05), decreased the proportion of pro-inflammatoryDuncaniella, and reshaped the balance of the Bacteroidota/Firmicutes phyla. This study represents the first instance of synergistic extraction of polypeptides and polysaccharides fromAuricularia auriculausing a single process. It demonstrates their immune-enhancing effects through multiple mechanisms, including “antioxidation-immune organ repair-intestinal microbiota regulation.” The findings offer a theoretical and technical foundation for the deep processing ofAuricularia auriculaand the development of functional foods.
研究领域:
免疫学
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药理学
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微生物学
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生物化学
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生物技术
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营养学
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产品关联
DOI
PubMed
高影响因子
Journal of Saudi Chemical Society
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2024
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IF 5.8
Liping Zhao,Ye Zhao,Lihe Zhao,Gang Liu
A nitrogen-phosphorus dual-doped auricularia auricula carbon (NP-AC) matrix was prepared through hydrothermal treatment using natural auricularia auricula as raw material and medium solution. Yeast was introduced and cultured by the auricularia auricula liquid medium. The NP-AC/S composite was prepared through further freeze-drying, carbonization, activation and compounding with sulfur procedures. The composition and microstructure of samples was characterized by X-ray diffraction (XRD), raman and X-ray photoelectron spectroscopy (XPS). The morphology was observed under scanning electron microscope (SEM) and transmission electron microscopy (TEM) method. The specific surface area was analyzed using nitrogen adsorption/desorption test. The weight ratio of sulfur was measured through thermogravimetric (TG) analysis. The original structure and composition of biomass were improved by yeast fermentation and the auricularia auricula block structure with low porosity was modified. The electrochemical performance of NP-AC/S composite in Li-S batteries was systematically explored. After 100 cycles at 0.2C current density, there was still nearly 1000 mAh g −1 reversible capacity, holding a capacity retention rate of more than 84 %. The cycle performance and rate performance were both far better than the ordinary activated carbon materials.
研究领域:
材料科学
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能源科学
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生物技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Yifan Wang,Zhengjie Peng,Youqing Yang,Zhonnan Li,Yujiao Wen,Meng Liu,Shikai Li,Lezhu Su,Zhi Zhou,Yongfa Zhu,Nan Zhou
The abuse of agrochemicals has caused serious environmental pollution, raising urgently requirement for sensitive controlled release systems. Biochar supported γ-FeOOH nanoarrays (γ-FeOOH@BC) were synthesized in situ through a two-step pyrolyzation-oxidation procedure. The decoration of γ-FeOOH nanoarray structure significantly enhanced the surface positive charge of the composite (pH zpc increased from 2.7 to 7.8), due to which active substances could be electrostatically self-assembled on γ-FeOOH@BC to realize accurate release by changing the environmental pH. The assembled amounts of QNC and PO 4 3- could reach a value of 94 mg·g −1 and 92 mg·g −1 respectively, and the encapsulation efficiency as well as the release concentration were closely related to the pKa of the substance. 45% (QNC) and 63% (PO 4 3- ) could be released at pH = 7.8 and finally both reached to 88% at pH = 11. After 5 rounds of the sensitivity test, QNC/ PO 4 3- could be well assembled or released by pH adjustment, and the encapsulation efficiency remained above 75%. Meanwhile, the assembly structures could also be self-formed in real soil containing QNC/PO 4 3- and had selective herbicidal activity on barnyard grass plants. This work not only provides a feasible material but also a novel method for self-assembly and controlled release of agricultural chemicals.
研究领域:
环境科学
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农业科学
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产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2021
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IF 4.952
Hongxiu Fan,Hongcheng Liu,Yuetong Chen,Bingyu Chen,Dawei Wang,Shanshan Zhang,Tingting Liu,Yanrong Zhang
Incorporation of A. auricula into wheat flour dough could improve their nutritional properties, but utilization of A. auricula is limited as it causes a weakened dough and deterioration in the quality of product. In this study, A. auricula was treated using high temperature high pressure processing combined with acidic solution treatment, and the effect of A. auricula before and after the treatment on the rheological and structural properties of dough was investigated. Results showed that the high temperature high pressure-acidic solution treated A. auricula (HTHPA) did not block the formation of intrachain disulfide bonds in glutenins. On the contrary, it led to a higher aggregation extent of glutenin macropolymer by contributing to the crosslinking of proteins via noncovalent interactions. Rheological tests showed that the doughs with 2–8% HTHPA exhibited higher elastic and viscous moduli and shear-thinning behavior compared to the doughs with 2–8% untreated A. auricula (UA). This will contribute to the volumetric expansion of dough during proofing. Temperature sweep test revealed that addition of 2–8% HTHPA could reinforce the intermolecular interactions in the dough structure. This study will provide a new method to design and produce A. auricula -enriched staple foods with desirable rheological and structural properties.
研究领域:
食品科学
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营养学
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产品关联
DOI
高影响因子
BIOINORGANIC CHEMISTRY AND APPLICATIONS
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2023
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IF 3.8
Bao-Li Heng,Fan-Yu Wu,Jing-Hong Liu,Jian-Ming Ouyang
Objective. This study aimed to investigate the growth of calcium oxalate (CaOx) crystals regulated by Auricularia auricular polysaccharides (AAPs) with different viscosity-average molecular weights (), the toxicity of AAP-regulated CaOx crystals toward HK-2 cells, and the prevention and treatment capabilities of AAPs for CaOx stones. Methods. The scavenging capability and reducing capacity of four kinds of AAPs ( of 31.52, 11.82, 5.86, and 3.34 kDa) on hydroxyl, ABTS, and DPPH free radicals and their capability to chelate divalent iron ions were detected. AAP-regulated CaOx crystals were evaluated by using zeta potential, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. The cytotoxicity of AAP-regulated crystals was evaluated through examination of cell viability, cell death, malondialdehyde (MDA) content, and cell surface hyaluronic acid (HA) expression. Results. The in vitro antioxidant activities of the four AAPs were observed in the following order: AAP0 < AAP1 < AAP2 < AAP3. Thus, AAP3, which had the smallest , had the strongest antioxidant activity. AAPs can inhibit the growth of CaOx monohydrate (COM), induce the formation of CaOx dihydrate (COD), and reduce the degree of crystal aggregation, with AAP3 exhibiting the strongest capability. Cell experiments showed the lowest cytotoxicity in AAP3-regulated CaOx crystals, along with the lowest MDA content, HA expression, and cell mortality. In addition, COD presented less cytotoxicity than COM. Meanwhile, the cytotoxicity of blunt crystals was less than that of sharp crystals. Conclusion. AAPs, particularly AAP3, showed an excellent antioxidative capability in vitro, and AAP3-regulated CaOx crystals presented minimal cytotoxicity.
研究领域:
药理学
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肾病学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2020
·Vol. 12
·期 17
·2237-2243
·
IF 2.596
Yujiao Tu,Suping Wang,Xiaotian Yuan,Pengfei Song,Yunlin Wei,Kunhao Qin,Qi Zhang,Xiuling Ji
Novel fluorescent nitrogen and phosphorus-doped carbon dots (Aa N,P-CDs) derived from Auricularia auricula were successfully prepared via a simple hydrothermal method. The Aa N,P-CDs showed high selectivity and sensitivity in detection of 4-nitrophenol (4-NP) and Ag(I) and good linear ranges of 4-NP (0–37.5 μM, R2 = 0.9967) and Ag(I) (0–25 μM, R2 = 0.9934). The low detection limits were 198 nM and 74.35 nM, respectively. This showed that static quenching dominated in Ag(I) quenching of the Aa N,P-CD fluorescence, while that of 4-NP was the inner filter effect. The Aa N,P-CDs were successfully used to detect 4-NP and Ag(I) in real water and soil samples. Cell imaging indicated that Aa N,P-CDs showed low biotoxicity and good biocompatibility, which provided a new insight into bioimaging application and environmental pollutant detection.
研究领域:
环境科学
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分析化学
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生物医学
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DOI
高影响因子
ANALYTICAL LETTERS
·
2018
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IF 1.206
Ziwei Li,Dongming Han,Mingchuan Wang,Yuexin Zhang,Yang Wang,Xiufeng Yan,Qiuying Pang
This study aimed to develop a precise and accurate method of sample preparation of Auricularia auricula for inductively coupled plasma-optical emission spectrometry-based trace element determination and to compare concentrations of seven trace elements (Mg, Fe, Mn, Zn, Ni, Cr, Sr) in six A. auricula samples belonging to three varieties with two cultivation substrates. Five sample preparation procedures, microwave-assisted digestion, nitric acid digestion with hot plate heating, nitric acid and perchloric acid digestion with hot plate heating, nitric acid digestion with ash content, and aqua regia digestion with ash content, were compared. The performance of the procedures was determined based on the precision and accuracy of the results and the limits of detection of the elements. The best results, with limits of detection of 0.60–6.60 ng · mL−1 and recoveries for spiked samples between 93.80 and 105.00%, were found using nitric acid digestion with ash content. Six A. auricula samples were analyzed using the proposed procedure. Among the tested elements, the concentration of Fe was highest in all six A. auricula samples up to a maximum concentration of 284.83 µg · g−1. The concentrations of Mn, Cu, and Ni increased in mixed stands (basswood, birch, and mongolica) compared with pine sawdust cultivation.
研究领域:
食品科学
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分析化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Gongke Hu,DongJing Jiang,Hao Yangliuma,Jingting Cheng,Guangmei Liang,Lu Ni,Chao Lei,Shasha Li,Xiangyang Yuan,Wei Wang,Yuntao Liu,Hejun Wu
Bioactive films based on polysaccharides incorporated with theabrownin were developed. • Theabrownin improved UV barrier and antioxidant activity of films. • The addition of theabrownin significantly enhanced the mechanical properties of films. • The films can effectively extend the shelf life of fresh Auricularia auricula-judae . In this study, theabrownin (TB) was extracted from Tibetan tea and characterized using active functional groups including hydroxyl and carboxyl groups, exhibits a porous and wrinkled surface morphology, displays a characteristic absorption peak around 200 nm, and demonstrates significant antioxidant capacity. Based on these findings, composite films of potato starch (PS)/ sodium alginate (SA) with varying TB content were prepared by solution casting. When the TB content was 7.5%, the composite film exhibited optimal overall performance: the water vapor transmission rate decreased to 173.87 g/(m 2 ·24 h), the oxygen transmission rate was as low as 0.33 cm 3 /(m 2 ·24 h·0.1 MPa), the tensile strength increased to 16.89 MPa, and the specimen demonstrated substantial radical-scavenging capacity, DPPH and ABTS radical scavenging rate recorded at 61.26% and 64.38%, respectively. Furthermore, when applied to the preservation of fresh Auricularia auricula-judae , the composite film effectively inhibited weight loss, enzymatic browning, and overall quality deterioration after 13 days preserved at 4 °C, demonstrating favorable preservation effects. This study provides an effective strategy for the design of high-performance polysaccharide-based packaging materials, and broadens the approaches for the high-value utilization of tea extracts in the field of green packaging.
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PubMed
高影响因子
危险品化学品经营许可证（带存储）