Journal of Food Measurement and Characterization
·
2023
·
IF 3.4
Gan Xiaojing,Ma Qianyun,Wang Liwen,Liu Wenhui,Chen Zhizhou,Wang Wenxiu,Wang Jie,Mu Jianlou
Pear ( Pyrus spp.) has the function of clearing heat, reducing fire and moistening the lungs. Not from concentrated (NFC) pear juice can better maintain the nutrition, aroma and taste of pear fruit, which is worth considering as a pear processing product. Fruit raw materials play a key role in the preparation of NFC juice. In order to obtain suitable varieties for NFC pear juice, this study investigated the fruit quality of 16 kinds of pear from China, and the physicochemical characteristics, sensory quality and volatile components of NFC pear juice. The results revealed that there was a great difference among the species. The weight of single fruit varies from 84.03 to 334.96 g and juice yield from 39.39 to 85.22%. For the juice, L* values from 32.74 to 45.13, a* values from − 0.72 to 3.79%, b* values from 2.01 to 11.00. Browning degree from 0.66 to 4.35. Total soluble solids from 8.26 to 12.89%, sugar contents from 1.28 to 6.64%, total acidity from 0.65 to 7.55 g/L, and apparent viscosity from 2.42 to 3.99 mPa s. Total polyphenols from 32.35 to 116.48 mg/100mL, total flavonoid content from 21.14 to 372.32 mg/100mL. The DPPH radical scavenging ability from 60.77 to 96.28%, ABTS radical scavenging ability from 7.5 to 45.60%. 70 volatile components were detected in 16 NFC pear juices, mainly including alcohols, esters and aldehydes, etc. Overall sensory score from Anli (4.45) to Williams pear (7.72). Through correlation analysis and principal component analysis, it was found that the variety of pear fruit was an important factor affecting the quality of fruit juice.
研究领域:
食品科学
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农学
·
化学
·
营养学
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产品关联
DOI
高影响因子
FOOD AND BIOPRODUCTS PROCESSING
·
2024
·
IF 3.5
Zhiwei Zhang,Shuaixue Mu,Zhenhong Gao,Xinyi Yang,Meiyue Zhang,Yuying Cheng,Kunsheng Qu
In this study, tomato juice was processed using both dynamic high-pressure microfluidization (DHPM) and thermal processing (TP) to investigate their effects on the quality and volatile components of not-from-concentrate (NFC) tomato juice. Both DHPM (400 MPa, 25 ℃) and TP (95 ℃, 3 min) achieved sterilization and improved the brightness of the juice. TP resulted in severe loss of ascorbic acid with only 49 % retention. Significant color change after TP (ΔE = 1.62), and severe browning. DHPM treatment and TP reduced the acidity of tomato juice by 26.67 % and 22.67 %, respectively. DHPM improved tomato juice stability, and the D [3,4] and turbidity of the tomato juice decreased from 98.1 to 21.2 μm and from 55.64 to 24.58 nephelometric turbidity units (NTU), respectively. The identification of volatile components in tomato juice by gas chromatography-ion mobility spectrometry (GC-IMS) showed that the content of 37 volatile components in tomato juice increased after DHPM treatment. The contents of 2-furanmethanol and 2-ethylpyrazine, the off-flavor compounds of the cooking flavor, increased more after TP. The characteristic aroma of tomato, 2-phenylacetaldehyde, increased after processing. The study results provide basic theoretical data for tomato juice processing.
研究领域:
食品科学
·
植物化学
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DOI
高影响因子
VACUUM
·
2018
·
IF 2.067
Fenglong Li,Xue Gu,Kun Zhang,Tat Thang Nguyen,Minghui Guo
Sustainable nanofibrillated cellulose (NFC) -based composites as advanced functional materials have attracted considerable attention for using in soft wearable electronic devices. In this work, a controllable one-pot method to fabricate NFC/g-C 3 N 4 composite film with different content of graphite carbon nitride (g-C 3 N 4 ) via vacuum-induced self-assembly (VISA) process has been presented. The composite film was constructed by electrostatic interaction/hydrogen bonding between NFC and g-C 3 N 4 coupled with vacuum-assisted filtration. The results demonstrated that the obtained NFC/g-C 3 N 4 composite film exhibited better specific capacitance. The high specific capacitance of 51 F g −1 at 1 mA cm −2 and 46 F g −1 at 1 mA cm −2 are achieved. The study provides a straightforward method of fabricating freestanding film as supercapacitor electrode, which have the potential in soft wearable electronic devices.
研究领域:
材料科学
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纳米技术
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电化学
·
可穿戴技术
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Materials
·
2021
·
IF 3.515
Zhao Qian,Yu Zhenglei,Liang Yunhong,Ren Lei,Ren Luquan
Near infrared laser- (NIR-) driven intelligent hydrogel actuator systems including printable N-isopropylacrylamide- (NIPAm-) nanosized synthetic hectorite clay-nanofibrillated cellulose (NFC) hydrogels and NIPAm-4-hydroxybutyl acrylate- (4HBA-) NFC hydrogels with a high response rate were prepared via three-dimensional (3D) printing and hydrothermal synthesis, respectively. The addition of NFC was beneficial to the improvement in rheology. The 3D printed intelligent hydrogel actuators with a structure pattern of Model I and Model II exhibited the saddle and inverted saddle deformations, respectively, to prove the validity of 3D printing. In order to improve the response rate and enrich movement patterns, the hydrothermal synthesized intelligent hydrogel actuators were prepared on the base of the 3D printed intelligent hydrogel compositions. The addition of NFC maintained the controllable NIR response. Based on a wedge-shaped design, the hydrothermal synthesized intelligent hydrogel pushed the resin ball with weight of 130 mg forward 8 mm in 39 s. By changing the torque values of a hydrogel in a different direction, the actuator realized controllable continuous rollover movement. Attributed to the longilineal shape, the intelligent hydrogel actuator reached an effective displacement of 20 mm in 10 s via a forward movement. The characteristics and structure design of a hydrogel material significantly realized multiple controllable functional four-dimensional (4D) printed deformations and movements. The combination of advantages of the 3D printed and hydrothermal synthesized intelligent hydrogels provided a new direction of development and abundant material candidates for the practical applications of 4D printing in soft robot, information sensing, and health engineering.
研究领域:
材料科学
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生物工程
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软体机器人
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 6
·e70630
·
IF 3.8
Caiyue Gao,Longhao Xie,Shuhong Jiang,Kainat,Hong Chen,Honghai Yang,Jun Wang
In order to obtain a loose selective layer of NFC membranes for dye desalination, a novel polyesteramide composite nanofiltration membrane based on Galp/PIP was fabricated by interfacial polymerization (IP) with d -(+)-galactose (Galp) and piperazine (PIP) as the alcoholic hydroxyl-amino mixed aqueous monomer and trimesoyl chloride (TMC) as the organic monomer in this work. The influence of the Galp/PIP weight ratio on the membrane's properties and separation performance was systematically investigated. The results indicate that the water flux and dye wastewater flux, the thickness of the selective layer, surface roughness, molecular weight cutoff (MWCO), and average pore size increased; however, the surface zeta potential became less negative due to the neutral charge of Galp, and the water contact angle decreased with the increase of the Galp/PIP. The water permeance and dye rejection were strongly dependent on the Galp/PIP ratio. At the optimal ratio of 4/6, the water permeation and the dye wastewater flux were up to 19.7 and 13.8 L/m 2 h bar, respectively, and the RB5 rejection was 92%. Compared to 0/10, the water permeation and the dye wastewater flux increased 59.2% and 57.5%, respectively, and the RB5 rejection was 97.4%, while the NaCl rejection was below 5%. In addition, this outstanding fractionation performance remained stable during extended operation with simulated dye/salt wastewater.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Huiting Xu,Wenyue Yang,Huibin Liu,Meng Li,Siqi Gong,Fan Zhao,Chunli Li,Junjie Qi,Honghai Wang,Wenchao Peng,Xiaobin Fan,Jiapeng Liu
Aqueous zinc-ion batteries have attracted extensive attention due to their environmental friendliness, low cost and high theoretical capacity. Among them, the conventional cathode materials mainly rely on ion intercalation or surface redox mechanisms, which usually exhibit unsatisfactory specific capacity. Currently, aqueous zinc-tellurium (Zn-Te) batteries based on conversion mechanisms have shown great potential to provide greater specific capacity. However, the sluggish electrochemical reaction kinetics limits the further development of Zn-Te batteries. Herein, the hierarchical structure was prepared by in situ growing MoS 2 on N, F co-doped porous carbon nanosheets (MoS 2 @NFC), which served as Te hosts to construct aqueous Zn-Te batteries. Benefitting from the hierarchical structure and unique catalytic property of the MoS 2 @NFC, the kinetics of Te redox reaction was remarkably enhanced for aqueous Zn-Te batteries. As a result, the aqueous Zn-Te batteries based the Te-MoS 2 @NFC electrode exhibited high specific capacity (483 mAh g −1 at 150 mA g −1 ), outstanding rate performance and excellent cycling stability. Furthermore, the catalytic conversion mechanism of Zn-Te batteries was systematically explored through various ex-situ characterization methods and density functional theory (DFT) calculations. Therefore, this work provides a novel idea to design high performance conversion-type aqueous zinc-ion batteries.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 17
·11261-11272
·
IF 5.7
Wang Junsheng,Zhuang Jie,Jin Wanhui,Yu Qian,Yu Jing,He Li,Wang Qiuhan,Cheng Deshan,Cai Guangming,Wang Xin
Textile-based wearable electronics have drawn increasing attention in recent years, but stable and durable conductive mechanism on textiles has been the challenge. In this study, we propose to fabricate a liquid metal circuit on textile substrates for flexible antennas and wearable sensors via screen printing method. The breakage of liquid metal circuit on cotton/lycra elastic fabrics can be repaired by pressing or heating, and the patterned liquid metal circuits can be removed using sodium hydroxide solution. Furthermore, the liquid metal circuit was designed as a pressure switch for thermal management system with the temperature precisely controllable by tuning the applied pressure. The liquid metal circuit was further designed as a flexible near field communication (NFC) antenna, providing identification capacity such as replacing campus card and protecting children. The maximum bending angle and effective distance of the NFC tag are determined to be 150 and 17.8 mm, respectively. In addition, the as-prepared liquid metal-based fabric sensors can accurately human motion detection in real time, exhibiting great potential in flexible wearable electronics.
研究领域:
纺织材料科学
·
电子工程
·
智能穿戴设备
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2019
·Vol. 26
·期 7
·4345-4355
·
IF 3.917
Zhao Yongsheng,Dang Wanbin,Ma Qiong,Zhu Yanling
Abstract Nanofibrillated cellulose (NFC) has been widely used in bio-composites and plays a critical role of interface phase in determining the final physical properties. However, it remains difficult to directly observe NFC and its network-like phase within its related composite. Herein, we report a facile and low-cost approach to visualize three-dimensional (3D) distribution of NFC and its interfacial morphology with confocal laser scanning microscopy. In this work, coumarin-3-carboxylic acid (C3) was chemically linked with TEMPO-oxidized nanofibrillated cellulose (TNFC) via amidation process with the aid of ethylenediamine, leading to the formation of fluorescent labelled nanocellulose (TNFC-C3). TNFC-C3 was then compounded with poly(vinyl alcohol) (PVA) as a reinforcing nanofiller because of abundant molecular hydrogen-bonding interactions. The spatial distribution and interfacial bonding characteristics of TNFC in composites were investigated. Fluorescence scanning shows a clear 3D network structure of TNFC-C3 in TNFC-C3/PVA composite. More importantly, TNFC-C3/PVA composites show increased mechanical strength from 7.5 to 23.2 MPa with the increase of TNFC-C3 content, indicating that a small number of C3-grafting result in high-quality of fluorescence resolution without sacrificing molecular interactions and reinforcing effect. Graphical abstract
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 43
·20174-20186
·
IF 4.682
Wang Yafang,Dang Wanbin,Yao Cheng,Tian Cuiyu,Lu Zhaoqing
Traditional mica-based composites are limited to the application in high-voltage electric insulation by their underdeveloped breakdown strength and mechanical robustness. Herein, a novel double-network mica-based composite film was fabricated by introducing aramid nanofiber (ANF) and nanofibrillated cellulose (NFC), which cooperatively enhanced interfacial adhesion and reinforcing effect. The ANF-NFC/mica@PDA composite film exhibited high mechanical strength (~ 28.76 MPa), excellent dielectric breakdown strength (~ 33.45 kV/mm) and positive mechanical flexibility. Moreover, the composite represented stable dielectric property at high temperature, which meant the ANF-NFC/mica@PDA composite film could be applied in more complex environments. This work provides a new route toward manufacturing superior performance mica-based composites for the electrical insulation field.
研究领域:
材料科学
·
电气工程
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-13
·
IF 16.6
Xie Xinjian,Xu Zhonggang,Yu Xin,Jiang Hong,Li Hongjiao,Feng Wenqian
Conductive hydrogels require tunable mechanical properties, high conductivity and complicated 3D structures for advanced functionality in (bio)applications. Here, we report a straightforward strategy to construct 3D conductive hydrogels by programable printing of aqueous inks rich in poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) inside of oil. In this liquid-in-liquid printing method, assemblies of PEDOT:PSS colloidal particles originating from the aqueous phase and polydimethylsiloxane surfactants from the other form an elastic film at the liquid-liquid interface, allowing trapping of the hydrogel precursor inks in the designed 3D nonequilibrium shapes for subsequent gelation and/or chemical cross-linking. Conductivities up to 301 S m −1 are achieved for a low PEDOT:PSS content of 9 mg mL −1 in two interpenetrating hydrogel networks. The effortless printability enables us to tune the hydrogels’ components and mechanical properties, thus facilitating the use of these conductive hydrogels as electromicrofluidic devices and to customize near-field communication (NFC) implantable biochips in the future.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
·
电气工程
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Meng Zhu,Dong-Xing Tan,Xiang-Yu Wang,Qing-Nan Bian,Ben-Shuai Guo,Yan-Min Liu,Gao Deng,Yuan-Yuan Feng
Water electrolysis to produce high-purity hydrogen has been regarded as the most promising and attractive method for renewable energy production. The intrinsic high kinetic barrier of the involved electrode reactions, especially that of the anodic oxygen evolution reaction (OER), however severely hinders the application of the water electrolysis technology for large scale hydrogen production. In this paper, a nano-composite Fe- and Co-based material containing crystalline metal sulfide ((NiFeCo)S) and amorphous metal phosphide ((FeCo)P) was in-situ grown on the surface of foam nickel (NF). The (FC)P-(NFC)S/NF catalyst exhibits ultra-high activities for OER at high current densities in 1.0 M KOH, delivering 500 and 1000 mA cm −2 at ultralow overpotentials of 274 and 280 mV, respectively with a small Tafel slope of 37.8 mV dec −1 . The excellent catalytic activities of (FC)P-(NFC)S/NF far exceed those of the reference single-component (FC)P/NF and (NFC)S/NF catalysts, and also exceed those of most non-noble metal catalysts reported in literature. Besides, the (FC)P-(NFC)S/NF catalyst exhibits high stability with almost no significant activity attenuation after the chronopotentiometric test at both 100 and 500 mA cm −2 for 40 h. The synergistic effects between the metal sulfide and metal phosphide have positive impacts on the OER activity through increasing the surface area, enhancing the reactivity of each active site, improving the electrical conductivity as well as the interface between the crystalline and amorphous phases. The present work provides a new strategy to develop cost-effective and efficient electrocatalysts toward OER and water electrolysis.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2017
·
IF 4.811
Yufei Chen,Jing Ru,Biyao Geng,Haiying Wang,Congcong Tong,Chungui Du,Shengchun Wu,Hongzhi Liu
A composite cryogel was prepared from quaternized nanofibrillated cellulose (Q-NFC) and chitosan (CS) through a combination of freeze-drying and cross-linking with epichlorohydrin. The specific surface area of the composite cryogel was approximately two times that of Q-NFC cryogel. And the composite cryogel exhibited superior adsorption properties of anionic dyes than either the Q-NFC or CS cryogel controls. The adsorption isotherm well fitted the Langmuir model with the maximum theoretical adsorption capacity up to 473.9 mg/g. The adsorption behavior was found to follow pseudo second-order kinetic model, indicating the chemisorption nature. Notably, the composite cryogel could effectively separate the cationic dye from anionic one. Furthermore, the composite cryogel displayed excellent reusability, evidenced by the removal percentage of Acid red 88 still as high as 96% even after five adsorption-desorption cycles. These advantages would make it an environmentally friendly candidate for the use in the separation and efficient removal of anionic dyes.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）