Journal of Food Measurement and Characterization
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2022
·Vol. 16
·期 2
·1404-1415
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IF 3.006
Tran Thily,Yang Ligang,Zhou Haiteng,Pan Da,Xu Dengfeng,Shi Xiangling,Wang Shaokang,Chen Shiqing,Sun Guiju
This study aimed to evaluate the influence of frozen storage time on the nutritional quality of boxed vegetables prepared with different cooking oils prior to freezing. Two types of vegetables, broccoli and Chinese cabbage, prepared with palm oil (PO) and soybean oil (SBO), were analyzed during their 12-month freezing storage (− 20 °C). The results showed that the nutritional quality of the frozen vegetable products was seriously affected during the storage period. During the storage period, some of the nutritional quality indexes, such as the vitamin C and total phenolic (TP) content, strongly deteriorated by 27–56% and 8.1–8.6%, respectively, whereas the nitrite content was increased by 10–14%. Additionally, a slight change was observed in the nitrate content. Concurrently, the oxidative degradation of the extracted cooking oils was also evaluated, and PO showed better oxidative stability than SBO. The peroxide value (PV), acid value (AV), malondialdehyde (MDA), and anisidine value (AnV) in PO increased less than those in SBO after 12 months at − 20 °C, and the PV, AV, MDA and AnV in PO were lower than those in SBO after frozen storage. On the basis of the findings from this study, PO was recommended as the best oil for the preparation of boxed frozen vegetables to reduce adverse effects during long-term storage.
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高影响因子
Gels
·
2022
·Vol. 8
·期 2
·84
·
IF 4.432
Yuye Huang,Kailei Xu,Jingyi Liu,Guangli Dai,Jun Yin,Peng Wei
Peripheral nerve injuries cause different degrees of nerve palsy and function loss. Due to the limitations of autografts, nerve tissue engineering (TE) scaffolds incorporated with various neurotrophic factors and cells have been investigated to promote nerve regeneration. However, the molecular mechanism is still poorly understood. In this study, we co-cultured Schwann cells (SCs) and rat adrenal pheochromocytoma (PC-12) cells on 50% degrees of methacryloyl substitution gelatin methacrylate (GelMA) scaffold. The SCs were encapsulated within the GelMA, and PC-12 cells were on the surface. A 5% GelMA was used as the co-culture scaffold since it better supports SCs proliferation, viability, and myelination and promotes higher neurotrophic factors secretion than 10% GelMA. In the co-culture, PC-12 cells demonstrated a higher cell proliferation rate and axonal extension than culturing without SCs, indicating that the secretion of neurotrophic factors from SCs can stimulate PC-12 growth and axonal outgrowth. The mRNA level for neurotrophic factors of SCs in 5% GelMA was further evaluated. We found significant upregulation when compared with a 2D culture, which suggested that this co-culture system could be a potential scaffold to investigate the mechanism of how SCs affect neuronal behaviors.Keywords:gelatin methacrylate;3D culture;Schwann cells;neurotrophic factors;nerve regeneration
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PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2019
·
IF 7.467
Ting Feng,Haining Wang,Yiyang Liu,Jin Zhang,Yan Xiang,Shanfu Lu
An electrolyte solution that includes redox couples is an essential component of a redox flow battery (RFB), and it directly affects the efficiency, power density, and cycle stability of the device. In this work, 12-phosphotungstic acid (PTA), a keggin type heteropolyacid, is evaluated as a redox active material in negative electrolyte. PTA has high redox reversibility and electrochemical activity with a kinetic constant of 0.015 cm s −1 and a low permeability of 6.17 × 10 −10 cm 2 min −1 through a Nafion ® 211 membrane. A single RFB is assembled with PTA and HI as the negative and positive redox active materials, respectively. The cell has a specific capacity of 12.8 Ah·L −1 at 100 mA cm −2 ; however, it exhibits poor cycle stability because of the osmotic pressure imbalance between the electrolyte solutions, the permeation of I − , and the serious hydrogen evolution side reaction. Using a mixed solution of PTA and HI as electrolytes on both sides of the cell and by adjusting the charge cutoff voltage, the cycle stability improved significantly. During 700 charge/discharge cycles at 100 mA cm −2 , the battery has high coulombic efficiency of 99.6%, energy efficiency around 80.1%, and capacity retention of 99.99% per hour.
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高影响因子
Nature Chemical Biology
·
2024
·
IF 12.9
Wang Shiwen,Liu Min,Hu Dongping,Dong Zhicheng,Zhao Zhong
Superoxide anion is thought to be a natural by-product with strong oxidizing ability in all living organisms and was recently found to accumulate in plant meristems to maintain stem cells in the shoot and undifferentiated meristematic cells in the root. Here we show that the DNA demethylase repressor of silencing 1 (ROS1) is one of the direct targets of superoxide in stem cells. The Fe–S clusters in ROS1 are oxidized by superoxide to activate its DNA glycosylase/lyase activity. We demonstrate that superoxide extensively participates in the establishment of active DNA demethylation in the Arabidopsis genome and that ARABIDOPSIS RESPONSE REGULATOR 12 acts downstream of ROS1-mediated superoxide signaling to maintain stem cell fate. Our results provide a mechanistic framework for superoxide control of the stem cell niche and demonstrate how redox and DNA demethylation interact to define stem cell fate in plants.
研究领域:
植物生物学
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表观遗传学
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干细胞生物学
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Xiyuan Tao,Li Yang,Jiali Liu,Zihao Zang,Peng Zeng,Changfei Zou,Lingguang Yi,Xiaoyi Chen,Xiaolin Liu,Xianyou Wang
Garnet-type Li 7 La 3 Zr 2 O 12 (LLZO) is a promising solid-state electrolyte (SSE) for next generation lithium batteries due to its high Li + conductivity and stability against lithium metal, especially the Li 7−3x Ga x La 3 Zr 2 O 12 (Ga-LLZO) is most valuable because of its high ionic conductivity (> 1 ×10 −3 S cm −1 ). However, it is difficult to prepare high-quality Ga-LLZO by the traditional air ambient sintering. Herein, we develop a simple and efficient rapid ultra-high-temperature sintering (RUHTS) method to prepare high-conductivity Ga-LLZO ceramic SSE. It has been found that the as-prepared Ga-LLZO ceramic SSE with the composition of Li 6.25 Ga 0.25 La 3 Zr 2 O 12 exhibits high relative density of 99%, good ionic conductivity of 1.48 × 10 −3 S cm −1 and large critical current density of 0.5 mA cm −2 after sintering at 1200 °C for 2 min. In addition, the Ga-LLZO SSE shows good electrochemical stability and interfacial compatibility against Li metal. The assembled Li-Li symmetric cell represents a small interfacial impedance of 37 Ω cm 2 . In the same time, the Li/Ga-LLZO/LE+LMNCO full battery has a total impedance of 205 Ω cm 2 , and can deliver a first discharge capacity of 235.1 mAh g −1 at 0.5 C, and the capacity retention rate is 88.3% after 100 cycles. This indicates that the as-prepared Ga-LLZO has good application prospect in the Li-metal solid-state batteries (LMSSBs). Moreover, this method does not require the use of mother powder during preparation process, which will effectively reduce the waste of raw materials, save manufacture costs and be beneficial to quantity production of Ga-LLZO ceramic electrolyte.
研究领域:
材料科学
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电化学
·
电池技术
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高影响因子
Surfaces
·
2025
·Vol. 8
·期 4
·80
·
IF 2.9
Si-Ao Xin,Yanxiang Wang,Shanshan Xu,Yanying Zhu,Ziyi Xu,Yanru Yuan,Dong Zhang,Yingfan Li,Shaoao Hu
Powder coating, as a promising coating material, has attracted widespread attention due to its convenient construction and being a green option, promoting environmental protection. However, the existence of defects such as insufficient leveling and poor mechanical properties of the coating during the coating process limits the further expansion of its application fields. Therefore, for this article, powder coatings with high leveling performance were prepared by composite modification of nylon 12 (PA-12) resin with polyacrylates and ethylene-α-olefin copolymers (POE). The introduction of modified polyacrylates reduces the surface tension of nylon chains, enhancing melt flowability during curing and making the coating surface smooth. Furthermore, by introducing POE, the flexibility of the powder coating was improved, and its fracture elongation increased from 59% for pure PA-12 to a maximum of 234%. This study provides an effective method for the modification of nylon powder coatings and offers new insights into their use in high-performance coating applications.
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RSC Advances
·
2016
·Vol. 6
·期 51
·45864-45872
·
IF 3.289
Yafei Wang,Jiang Fan,Tianyi Li,Qiong Wang,Junwei Shi,Zuoming Qu,Hua Tan,Yu Liu,Weiguo Zhu
Two binuclear platinum metallomesogens possessing a 6,12-dihydro-indeno[1,2-b]fluorene bridge, FJ-1 and FJ-2, have been synthesised and characterised by 1H and 13C NMR, TOF-MS and elemental analysis. Their thermal properties were studied by polarised optical microscopy and differential scanning calorimetry. Upon photoexcitation in solution, both complexes exhibited dual fluorescence (1π–π*)/phosphorescence (3π–π*) emission covering most of the visible spectrum (from about 460 nm to 750 nm). This uncommon behaviour has been further investigated by time-resolved optical spectroscopy, including nanosecond time-resolved transient absorption spectroscopy, and further insights were obtained by means of density functional theory (DFT) and time-dependent DFT (TD-DFT). An organic light-emitting diode (OLED) using FJ-1 was prepared. Importantly the two emission bands are retained in electroluminescence. This result suggests that controlling spin–orbit coupling to obtain dual emission can provide an effective way of achieving broadband emission based on a single molecule.
研究领域:
化学
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材料科学
·
光物理学
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高影响因子
Journal of Environmental Chemical Engineering
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2024
·
IF 7.4
Zhenkun Deng,Bing Hu,Changliu He,Lihe Zhang,Xi Zhao,Xu Zhang
Understanding the biodegradation of benzotriazole compounds (BTs) is crucial for improving their removal from the environment. Experiments using activated sludge showed a 61.65 % removal rate for benzotriazole (BTA), primarily through biodegradation. Notably, microbial diversity changed significantly, especially within the class Bacilli , which increased from 0.17 % to 0.75 % over 21 days ( p < 0.05). A novel Bacillus strain, DH-12, was identified, capable of degrading over 85 % of BTA and 5-methylbenzotriazole (MBT) within 24 hours. During the degradation of three BTs, seven possible intermediates were detected. Strain DH-12 appears to use methylation and carboxylation pathways for transformation and shows aerobic dechlorination ability. Additionally, this strain helps reduce the toxicity of BTs. This research enhances our understanding of BTs biodegradation by both microbial communities and a specific bacterial strain, offering valuable insights for environmental biotransformation strategies.
研究领域:
环境科学
·
微生物学
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高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Yi-Long Ma,Zhi Li,Zheng-Fang Wu,Qian-Lan Wu,Xin Guo,Ya-Fang Shang,Kiran Thakur,Zhao-Jun Wei
The main bioavailable phenolics from of Gongju (GJ) and their mechanism for hepato-protection remain unclear. To select the GJ phenolics with high bioavailability, chrysanthemum digestion and Caco-2 cells were used and their hepato-protective potential were examined by using AML-12 cells. The digestive recovery and small intestinal transit rate of the main phenolic compounds ranged from 28.52 to 69.53% and 6.57% ∼ 15.50%, respectively. Among them, chlorogenic acid , 3,5-dicaffeoylquinic acid, and 1,5-dicaffeoylquinic acid, showed higher small intestinal transit rates and digestive recoveries. Furthermore, we found that by increasing intracellular Catalase (CAT) and Superoxide dismutase (SOD) viability and lowering Malondialdehyde (MDA) level ( P < 0.05 ), 3,5-dicaffeoylquinic acid significantly mitigated the oxidative damage of AML-12 liver cells more than the other two phenolics. Our results demonstrated that 3,5-dicaffeoylquninic acid was the primary phenolic compounds in GJ that effectively reduced liver damage, providing a theoretical basis for the development of GJ as a potentially useful resource for hepatoprotective diet.
研究领域:
营养学
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药理学
·
食品科学
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PubMed
高影响因子
AMERICAN JOURNAL OF SPORTS MEDICINE
·
2020
·
IF 5.81
Wenqiang Yan,Xingquan Xu,Qian Xu,Ziying Sun,Zhongyang Lv,Rui Wu,Wenjin Yan,Qing Jiang,Dongquan Shi
Background:Treatment of cartilage lesions is clinically challenging. A previous study demonstrated that a hyaluronic acid hydrogel (m-HA) with kartogenin (KGN)-loaded PLGA nanoparticles (m-HA+KGN treatment) achieved superior cartilage repair in a rabbit model. However, large animals serve as a bridge to translate animal outcomes into the clinic.Hypotheses:(1) m-HA+KGN treatment could facilitate hyaline cartilage and subchondral bone tissue repair in a porcine model. (2) Defect size and type (full-thickness chondral vs osteochondral) influence the therapeutic efficacy of m-HA+KGN treatment.Study Design:Controlled laboratory study.Methods:48 minipigs were randomized into 3 treatment groups: m-HA hydrogel with KGN-loaded PLGA nanoparticles (m-HA+KGN treatment), m-HA hydrogel (m-HA treatment), and untreated (blank treatment). Full-thickness chondral (6.5 mm or 8.5 mm in diameter) or osteochondral (6.5 mm or 8.5 mm in diameter; 5-mm depth) defects were prepared in the medial femoral condyle. At 6 and 12 months postoperatively, defect repair was assessed by macroscopic appearance, magnetic resonance imaging (MRI), micro–computed tomography (µCT), and histologic and biomechanical tests.Results:The m-HA+KGN group exhibited superior gross and histological healing after evaluation at 6 and 12 months postoperatively. Improved quality of the repaired cartilage demonstrated by MRI and better subchondral bone reconstruction assessed by µCT were observed in the m-HA+KGN group. The m-HA+KGN group showed more hyaline-like cartilage exhibited by histological staining in terms of extracellular matrix, cartilage lacuna, and type II collagen. The biomechanical properties were improved in the m-HA+KGN group. With m-HA+KGN treatment, defects with a diameter of 6.5 mm or full-thickness chondral-type defects possessed significantly higher ICRS macroscopic and histological scores compared with diameter 8.5 mm or osteochondral-type defects.Conclusion:(1) m-HA+KGN treatment facilitated hyaline cartilage and subchondral bone tissue repair in a porcine model at the 12-month follow-up. (2) m-HA+KGN treatment demonstrated better therapeutic efficacy in defects with a diameter of 6.5 mm or full-thickness chondral-type defects.Clinical Relevance:This study verified the efficacy of this innovative KGN release system on cartilage repair. The KGN release system can be injected into defect sites arthroscopically. This convenient and minimally invasive operation holds important prospects for clinical application.
研究领域:
骨科
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组织工程
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生物材料
·
再生医学
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PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2024
·
IF 2
Jingxuan Qiu,Jing Lin,Chaoqun Zhang,Liping Zhao,Peng Wang,Jia Zhang,Rui Zhang,Yunchun Guo,Huiliang Wang
In this paper, the solubility of furosemide in 12 monosolvents including methanol, ethanol, n-propanol, isopropanol, n-butanol, sec-butanol, 1-pentanol, acetone, 2-butanone, methyl acetate, ethyl acetate, and water was measured by using a static gravimetric method within the temperature range of 283.15 to 323.15 K under atmospheric pressure. The solubility magnitudes show an increasing tendency with the increase of temperature in all solvents. Within the entire temperature range, the solubility is the lowest in water (0.0053 × 10–3 at 283.15 K) and the highest in 1-pentanol (72.736 × 10–3 at 323.15 K). The rough subsequence of solubility is 1-pentanol > methanol > n-propanol > ethanol > isopropanol > sec-butanol > n-butanol in alcoholic solvents and acetone >2-butanone > methyl acetate > ethyl acetate > water in nonalcohol solvents. The solubility behavior of furosemide is a result of the combined effects of solvent polarity, solvent–solvent intermolecular interactions (characterized by cohesive energy density), and summation of hydrogen bond acceptor propensities. Moreover, the experimental solubility data were fitted by the models of Apelblat and Yaws. The results indicate that the two models could both correlate the experimental values satisfactorily, and the Yaws model is more appropriate to fit the solubility data of furosemide compared with the Apelblat model.
研究领域:
药学
·
物理化学
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高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2019
·
IF 2.298
Bingbing Liu,Behnaz Asadzadeh,Weidong Yan
The solubility of (−)-epigallocatechin gallate (EGCG) peracetate in 12 pure solvents (methanol, ethanol, 1-propanol, 1-butanol, 2-propanol, 2-butanol, 1-pentanol, 1-hexanol, 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, and 2-butoxyethanol) was measured using the static method at the temperature range 278.15–318.15 K under atmospheric pressure. The solubility of EGCG peracetate in the selected solvents increased with increasing temperature in 12 solvents, and the most notable change was found in methanol. The obtained solubility data were correlated with the van’t Hoff equation, the modified Apelblat equation, the λh equation, and the nonrandom two-liquid model. Furthermore, solid forms of EGCG peracetate in 12 pure solvents were studied by a scanning electron microscope and X-ray powder diffraction. The obtained solubility values would be helpful in the purification and crystallization process of EGCG peracetate.
研究领域:
化学
·
药学
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高影响因子
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