INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2021
·Vol. 57
·期 2
·827-841
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IF 3.713
Muhammad Umair,Saqib Jabbar,Yue Lin,Mustapha Muhammad Nasiru,Jianhao Zhang,Muhammad Abid,Mian Anjum Murtaza,Liqing Zhao
Summary The combined effect of emerging electro-technology high-voltage cold plasma (HVCP) and non-thermal ultra-high hydrostatic pressure (UHP) as bioprocess technologies on the quality and stability of carrot juice has been evaluated. Carrot juice was treated with HVCP (70 kV for 3 min), UHP (300, 400, and 500 MPa) at 25 °C for 5 min, and a blanched sample of 100 °C for 5 min (BS) was also prepared. As compared to control and single treatments, the combined treatment (HVCP-UHP500) has attained better results in terms of enzyme inactivation and electroporation extraction of coloring compounds, phytochemicals, and ascorbic acid. Wherein, the maximum of 25.87 ± 0.12 a µg/100 mL of β-Carotene, 11.89 ± 0.80 a GAE (µg g −1 ) of total phenols, and 24.07 ± 0.12 b mg/100 mL of ascorbic acid content in carrot juice were also observed in the combined treatment at 500 MPa. In addition, phytochemical enhancement might be attributed to the disintegration of phenolic dimers into simple aglycones, predominantly because of the electro-kinetic phenomenon of HVCP, which is subsequently intensified by UHP treatment. Therefore, the current study suggests that the combination of two novel techniques is a highly efficient method in terms of energy, time, and cost, with low yield efficiency and bio-safety.
研究领域:
食品科学
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生物技术
✓ 已验证
DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
·
2025
·
IF 3.5
Xiaoxun Yu,Ziyu Wang,Yuping Wu,Qingmu Chen,Yingyue Zhang,Fusheng Zhang
Background ‘Not-from-concentrate’ (NFC) orange juice faces stability challenges. Its rheological properties are also important for optimizing processes such as pumping. These issues affect companies in terms of their cost implications, and they affect product quality and consumer acceptance directly. This study investigates the rheological properties of NFC orange juice subjected to high-pressure homogenization (HPH) following high-pressure processing (HPP). Results The viscosity coefficient ( k ) of HPH-treated orange juice reduced significantly, by 92.16%, and was accompanied by a 163.82% increase in the flow coefficient ( n ) and a 48.12% increase in zeta potential. High-pressure processing treatment reduced viscosity effectively while enhancing the fluidity and stability of the orange juice. However, no significant differences were observed in the major functional groups or particle size distribution in comparison with a thermal pasteurization (TP) group. Alterations in the polysaccharide structure were identified as the primary reason for the observed changes in rheological properties. Specifically, the molecular weight ( M w ) of soluble dietary fiber (SDF) increased, whereas the M w of cellulose decreased in the HPP treated juice. This correlated with the results for viscosity, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM) analyses. Conclusion In comparison with the TP group, the fluidity, and stability of HPH orange juice after HPP were enhanced significantly, and the viscosity was reduced. This speeds up the juice-pumping process, reducing energy consumption and costs. The combination of HPP and HPH pretreatment effectively improved the physical properties and sensory quality of orange juice. © 2025 Society of Chemical Industry.
研究领域:
食品科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2017
·
IF 3.671
Chen Bao,Hongliang Zeng,Yi Zhang,Longtao Zhang,Xu Lu,Zebin Guo,Song Miao,Baodong Zheng
In order to investigate the effects of different preparation methods on Semen coicis resistant starch, the structural properties and prebiotic effects of autoclaving treatment–purified S. coicis resistant starch (GP-SRS3), ultrasonic-autoclaving treatment–purified S. coicis resistant starch (UP-SRS3), enzyme-autoclaving treatment–purified S. coicis resistant starch (EP-SRS3) and microwave-moisture treatment–purified S. coicis resistant starch (MP-SRS3) were studied compared to high-amylose maize starch (HAMS). Fourier transform infrared spectroscopy and Solid-state 13 C NMR spectroscopy showed all of SRS3 displayed B-type crystallite structure, furthermore, MP-SRS3 and UP-SRS3 showed higher degree of ordered structure and degree of double helical structure compared to other samples. Field emission scanning electron microscopy showed MP-SRS3 displayed deeply layered strips and UP-SRS3 exhibited some cavities. Moreover, S. coicis resistant starch could promote the growth of Bifidobacteria adolescentis better compared to high-amylose maize starch, among these samples. MP-SRS3 exhibited best prebiotic effect, which was possible attributed to its rough surface and double helix structure. B. adolescentis displayed a higher survival rate to the simulated gastrointestinal tract environment in SRS3 medium than that in high-amylose maize starch medium, especially MP-SRS3 and UP-SRS3, which partly contributed to its strips and cavities. Overall, MP-SRS3 could be regarded as a potential prebiotic to promote the growth of B. adolescentis for its structural trait.
研究领域:
食品科学
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营养学
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微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2022
·Vol. 15
·期 20
·7372
·
IF 3.748
Xiaoxiao Zhang,Jun Hou,Wei Xia,Zhian Xu,Pengtao Yang,Anqi Wang,Ziyi Liu,Jie Shen,Hua Zhang,Xiaoli Dong,Yoshiya Uwatoko,Jianping Sun,Bosen Wang,Yanfeng Guo,Jinguang Cheng
RV6Sn6(R= Sc, Y, or rare earth) is a new family of kagome metals that have a similar vanadium structural motif asAV3Sb5(A= K, Rb, Cs) compounds. UnlikeAV3Sb5, ScV6Sn6is the only compound among the series ofRV6Sn6that displays a charge density wave (CDW) order at ambient pressure, yet it shows no superconductivity (SC) at low temperatures. Here, we perform a high-pressure transport study on the ScV6Sn6single crystal to track the evolutions of the CDW transition and to explore possible SC. In contrast toAV3Sb5compounds, the CDW order of ScV6Sn6can be suppressed completely by a pressure of about 2.4 GPa, but no SC is detected down to 40 mK at 2.35 GPa and 1.5 K up to 11 GPa. Moreover, we observed that the resistivity anomaly around the CDW transition undergoes an obvious change at ~2.04 GPa before it vanishes completely. The present work highlights a distinct relationship between CDW and SC in ScV6Sn6in comparison with the well-studiedAV3Sb5.Keywords:ScV6Sn6;charge density wave;high pressure
研究领域:
凝聚态物理
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Physical Chemistry C
·
2024
·
IF 3.3
Xinmiao Gai,Jia Qu,Nan Zhang,Cun You,Fuqing Zhang,Tao Lv,Qiang Tao,Pinwen Zhu,Yan Li,Xin Wang
Bi2Ru2O7 is a weak metal pyrochlore with static disorder from lone-pair electrons. The suppression of static disorder can be observed by in situ Raman spectroscopy, and the abnormal turning point in resistivity can be found at high pressure. X-ray photoelectron spectroscopy (XPS) of bismuth and ruthenium, low-temperature magnetic susceptibility, and magnetization curve were studied, indicating that there were different valence states between bismuth and ruthenium. The in situ high-pressure structure evolution and conductivity in Bi2Ru2O7 were investigated up to 30.4 and 32.7 GPa, respectively. The electronic structure evolution was studied by first-principles calculations up to 30.0 GPa. Some of the Raman peaks related to static disorder were suppressed at around 2.5 and 18.0 GPa, respectively. The [RuO6] octahedron was compressed and distorted with pressure, and the triangular distortion increased in the range of 18.0 and 24.4 GPa. The high-pressure resistivity was measured by the four probe method. It slowly decreased at first and then increased slowly after 2.5 GPa due to the effects of static disorder and the applying pressure. After 18.0 GPa, the resistivity increased rapidly because of the pressure-induced lattice distortion, which led to the weakening of the conductivity of the sample under high pressure. All observations showed that the lattice distortion was influenced by the combined effects of static disorder and pressure before 18.0 GPa, which caused the resistivity to decrease first and then increase. As static disorder is suppressed, Bi2Ru2O7 is close to standard pyrochlore and the conductivity after 18.0 GPa, which is consistent with the theoretical calculation results of band gap.
研究领域:
材料科学
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凝聚态物理
✓ 已验证
产品关联
DOI
高影响因子
Communications Materials
·
2025
·Vol. 6
·期 1
·1-9
·
IF 9.6
Luo Tao,Li Shen-Ao,Chen Liu-Cheng,Zhong Guo-Hua,Lin Hai-Qing,Chen Xiao-Jia
The hydrides based on transition metal nitrides are believed to be potential candidates of low-pressure superconductors. However, the relevant theoretical and experimental studies are lack. Here, we report a theoretical and experimental study of the superconductivity in Zr-N-H system. Two high-pressure phases of P 6 3 / m m c -ZrNH 2 and \(F\bar{4}3m\) -ZrNH are found to be stable. The superconducting transition temperature of the former is theoretically predicted to be relatively low with the values of 15–17 K, while the transition temperature of the latter is higher, close to 40 K at megabar pressures. The difference in transition temperature values mainly comes from the different forms of H in hydrides. To examine this theoretical prediction, we synthesize Zr-N-H ternary hydrides experimentally at high pressures by laser heating. The resistance measurements confirm the superconductivity of P 6 3 / m m c -ZrNH 2 and \(F\bar{4}3m\) -ZrNH. The present results provide a promising avenue for exploring the superconductivity in transition-metal nitrides.
研究领域:
材料科学
·
凝聚态物理
✓ 已验证
产品关联
DOI
高影响因子
EPL
·
2016
·Vol. 114
·期 5
·56003
·
IF 1.963
Lidong Dai,Lei Wu,Heping Li,Haiying Hu,Yukai Zhuang,Kaixiang Liu
In this study, the effect of pressure on undoped and 5% yttrium-doped SrZrO3 (SZY0 and SZY5) were conducted from the ambient condition to {\sim}25\ \text{GPa} with a diamond anvil cell. The comparison of the high-pressure Raman spectra of SZY0 and SZY5 indicate that SZY0 displays a rigid structure without any structural modification, whereas for SZY5 a structural transition at {\sim}15\ \text{GPa} is revealed. Some characteristic physical parameters such as bulk conductivities, grain boundary conductivities, Warburg diffusion coefficient, transference number and bulk relaxation frequency were determined by the high-pressure impedance spectroscopy data. An obvious discontinuous inflexion point (at {\sim}13\ \text{GPa}) for SZY5 sample is observable which was also verified the phase-transition of the Raman spectroscopy results. A mixed conduction mechanism for both SZY0 and SZY5 are coexisting for both SZY0 and SZY5 in a wide pressure range. The pressure-induced phase-transition of SZY5 would result in an inversion of conduction mechanism that is characterized by the dominant charge carriers transformation from electron to ion. The Maxwell-Wagner relaxation arising at the interfaces of grain and grain boundary indicates that Y-doping and pressure could make the ions diffusion much easier through the boundaries and finally enhance the dielectric performance of the sample. It is suggested that pressure could be a useful tool to manipulate the microstructure and dielectric performance of polycrystal through altering the grain boundary distribution.
研究领域:
材料科学
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物理学
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE COMMUNICATIONS
·
2024
·
IF 2.1
Lun Xiong,Mingquan Jiang,Fang Miao,Sheng Jiang
In this study, niobium diboride (NbB 2 ) was investigated using synchrotron radiation X-ray diffraction in a diamond anvil cell to analyze their compressive behavior at room temperature. The volume of the NbB 2 was fitted to its corresponding highest pressures of 32.2 GPa without experiencing structural phase transitions, leading to the determination of bulk modulus of 389(7) GPa. Additionally, we further investigated the bulk modulus, band structure and density of states of NbB 2 to 35 GPa by density functional theory. The results yielded a bulk modulus of 285 GPa for NbB 2 . Importantly, it was observed that NbB 2 demonstrates both metallic and non-magnetic properties throughout the pressure range. In addition, we studied the deviatoric stress of NbB 2 at high pressure using linewidth analysis method. It was found that NbB 2 can support a maximum differential stress of 14.2 GPa at the pressure of 17.3 GPa.
研究领域:
材料科学
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物理学
✓ 已验证
产品关联
DOI
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2023
·Vol. 25
·期 8
·6288-6294
·
IF 3.3
Xiaotong Zhang,Dawei Jiang,Yonghao Han,Yang Gao
To reveal the pressure effects on BiOX semiconductors, we performed in-situ Raman spectroscopy and electrical transport measurements on BiOI up to 26.1 GPa and 19.2 GPa. BiOI showed good structural stability, while the electron conduction characteristics maintained dominance throughout the pressure range. The influence of grain boundary conduction disappeared at pressures above 9.2 GPa. With pressure elevation, the pressure-induced lattice fragmentation and grain refinement introduced a large number of relevant levels in the energy gap and resulted in a significant increase in the conductivity of BiOI under compression. The conductivity increased by 106 at 19.2 GPa from the initial value and maintained an increase of 102 after depressurization until ambient conditions were attained. At the same time, the space charge polarization of the crystal interface layer became weaker with pressure elevation resulting in a decrease in the relative permittivity of BiOI. The calculation results of the complex permittivity showed that the frequency of orientation polarization response decreases with pressure elevation, and the complex permittivity becomes constant in the high-frequency region. Our work proves that pressure could significantly increase the carrier concentration and mobility, thus effectively improving the conductivity of BiOX semiconductors.
研究领域:
材料科学
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凝聚态物理
✓ 已验证
DOI
PubMed
高影响因子
Case Studies in Thermal Engineering
·
2021
·
IF 4.724
Jing Fan,Han Mu,Chang Gao,Fenhong Song
Recently, biodiesel is considered as a biodegradable, renewable and high-potential fuel which could be used directly in tradition internal combustion engines. Fuel’ transport properties in high pressure are required to model the process of fuel spray, atomization and combustion accurately. This work, three ethyl esters’ liquid thermal conductivity (biodiesel compounds) in the liquid phase was measured by an experiment system which is established based on a transient hot-wire method with a bare platinum hot wire. The measurements were conducted at the temperatures ranging from 292 K to 372 K and pressure up to 15 MPa. The combined expanded uncertainty of the measurement was estimated to be ±2.0% (in the 0.95 confidence level). For interpolation, the relationship between measured results with temperature and pressure were correlated as a polynomial function, and the maximum deviation of correlations were less than 0.30%.
研究领域:
能源科学
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物理化学
✓ 已验证
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2020
·
IF 2.65
Yi Tian,Junpu Wang,Jiawei Zhang,Shixue Guan,Lu Zhang,Binbin Wu,Yuzhu Su,Mengyang Huang,Li Zhou,Duanwei He
The stability and solubility of diamond in cobalt at a pressure of 5 GPa was investigated. At temperatures ranging from 1000 °C and 1350 °C, diamond can be dissolved in cobalt without graphitization . Meanwhile, the solubility of single diamond crystals in cobalt was measured at 5 GPa and temperatures of up to 1300 °C through weight analysis, and it was found to increase with the increase in temperature. The morphological changes of the diamond crystals after high-pressure and high-temperature (HPHT) treatments were observed using a scanning electron microscope . The resulting quantitative data and morphology analysis enabled the construction of a scheme for the morphological evolution of diamond crystals during their dissolution in cobalt at HPHT. The diamond formation process in cobalt solvent is discussed in relation to the dynamic equilibrium.
研究领域:
材料科学
·
地质学
✓ 已验证
产品关联
DOI
高影响因子
HIGH PRESSURE RESEARCH
·
2018
·
IF 1.925
Yunxia Han,Shanmin Wang,Yinjuan Liu,Dejiang Ma,Duanwei He,Yusheng Zhao
As a new member in the family of Mott system, perovskite PbCrO3 has recently been uncovered to exhibit fantastic structural transition under pressure, coupled with magnetic, electronic, and ferromagnetic transitions, which provide many opportunities for understanding of correlated system. However, it is still challenging to synthesize high-quality single-crystal PbCrO3, leading to the limited exploration of this Mott compound. In this work, we formulate a new high-pressure reaction route for preparation of high-quality PbCrO3 crystals between PbCl2 and Na2CrO4 at high pressure of 5–10 GPa and at high temperature of 750–1500°C. Because of the formation of reaction byproduct NaCl, the final product can readily be separated by washing with water. The obtained sample is in the form of single crystal with crystallite size up to 200 μm. In addition, combined with X-ray diffraction measurement, a tentative pressure-temperature synthesis diagram of PbCrO3 is mapped out from the reaction between PbCl2 and Na2CrO4 and the reaction mechanism is also explored in detail.
研究领域:
材料科学
·
凝聚态物理
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）