INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2022
·Vol. 57
·期 8
·5216-5227
·
IF 3.612
Zhongyue Tang,Jin Fan,Jintao Yang,Lu Liu,Laping He,Wei Zhang,Xuefeng Zeng,Likang Qin
Summary In this study, the ultrafine grinding (UG) and high pressure homogenization (HPH) treated slurry on the particle size and rheological property of slurry, texture, in vitro starch digestibility, and multiscale structure of steamed rice bread (SRB) were investigated. Then, it was found that the average particle size of slurry treated by UG and HPH reduced from 84.6 to 38.6 μm and 22.6 μm, respectively. The rheological properties results demonstrated that G′ resulted in higher values than G″, and that the values of G′, G″ and tan δ of slurry decreased obviously after UG and HPH treatment. Obviously, the hardness and viscidity of SRB made by UG and HPH were lower, while the elasticity and specific volume were higher. The determination of in vitro starch digestibility revealed that UG treated on slurry accelerated the starch hydrolysis rate of SRB, resulting in an increase in the pGI from 76.17 to 79.36, while HPH treatment reduced the pGI from 76.17 to 73.49. Furthermore, XRD and FTIR demonstrated that both UG and HPH increased the intermolecular hydrogen bonds, and both treatments also assisted in starch arrangement for increasing the ordered crystallization of starch, which may contribute to the increasing amylose content.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
高影响因子
DYES AND PIGMENTS
·
2024
·
IF 4.1
Fengshan Liu,Keao Liu,Chunhui Wang,Yang Xu
The physical damage of engineering materials is challenging to perceive, particularly when they occur with only a slight extent. To present the location of damage to engineering is still difficult to achieve. Mechanical responsive engineering materials are therefore highly desired. Herein, a type of composites comprised of carbon nanoparticles (CNP) and poly(vinyl chloride) (PVC) was prepared via a heating incubation process. Notably, we found that these composites were in a metastable state and exhibited a grinding-stimulated fluorescence enhancement performance. After grinding stimulation, a bright orange-yellow color emission appeared and the fluorescence intensity of the composites exhibited a 75-fold enhancement. It was noted that grinding had no effect on the fluorescence of CNP alone. The fluorescence enhancement may be due to the change in the surface environment of CNP, as grinding facilitates the entry of CNP into PVC. In addition, fluorescence enhancement was also observed in tightening screw experiments using commercialized PVC films, demonstrating the abrasive-stimulated fluorescence enhancement properties of this CNP/PVC. Such remarkable mechanical response property and interesting combination between CNP and PVC will provide avenue to promote the development of smart engineering materials and have considerable potentials in external force response and structure damage surveying.
研究领域:
材料科学
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工程学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2015
·
IF 3.391
Lei Liu,Jinjie Guo,Ruifen Zhang,Zhencheng Wei,Yuanyuan Deng,Jinxin Guo,Mingwei Zhang
The impact of increasing degree of milling (DOM) on free and bound phenolics and flavonoids and on cellular antioxidant activity (CAA) of japonica and indica brown rice was investigated. As the average DOM increased from 0 to 2.67, 7.25 and 9.60%, the average total phenolic content decreased by 21.1, 42.6 and 55.6%, and the average total CAA value decreased by 37.4, 84.0 and 92.8%, respectively. Furthermore, the percentage contributions of bound forms to total phenolics and flavonoids decreased with increasing DOM. The contents of nine phenolic compounds significantly decreased with increasing DOM, including quercetin, ferulic and coumaric acids. Interestingly, as the DOM increased to 9.6%, free ferulic and coumaric acids were undetectable in japonica rice, while neither free nor bound caffeic acid was detectable in indica rice. These findings indicate that DOM should be carefully controlled for acceptable sensory quality and retention of phytochemicals during brown rice milling.
研究领域:
食品科学
·
营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science China-Materials
·
2022
·Vol. 65
·期 9
·2463-2471
·
IF 8.64
Huang Limei,Li Hao,Wang Xinxin,Ding Yuanli,Wang Jianfeng,Jiang Lei
Direct mass exfoliation of graphene from bulk graphite with high yield and productivity for commercial applications is challenging. This work proposes self-grinding exfoliation using the mutual shear friction of graphite particles to fabricate graphene from microcrystalline graphite. The concept is implemented using microbeads as the grinding medium to drive the shear friction between graphite nanocrystals in a high-concentration paste. The proposed approach substantially improves graphene yield from 6.3% to 100% and simultaneously generates a record productivity of 7.5 g h −1 L −1 , achieving total graphite-to-graphene conversion on the kilogram scale. The as-prepared graphene nanosheets have an average lateral size of 298 nm and the same C/O atomic ratio as the pristine graphite. In addition, the well-exfoliated, small nanosheets display good electrical conductivity and exhibit significant potential as conductive additives that improve the specific capacity and cyclic stability of Li-ion batteries better than commercial carbon-based conductive particles.
研究领域:
材料科学
·
能源技术
·
纳米技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jie Liu,Wenxuan Yan,Yingying Ma,Xinran Li,Jiajun Zhong,Xiaofeng Zheng,Zhe Liu
An effective strategy to improve the proton conductivity of metal–organic frameworks (MOFs) is to regulate the pore size of composite materials. In this work, composite materials of MOF-808@MOG-808-X (X is the mass ratios of MOF-808 to MOG-808) was successfully prepared by grinding and blending. MOF-808@MOG-808-1:2 was optimal for its suitable pore structure, which facilitates the practical construction of hydrogen bonding networks, promotes rapid and stable proton conduction, and enables the proton conductivity, achieving a 1 + 1 > 2 effect. At 353 K and 93% relative humidity (RH), the maximum proton conductivity of MOF-808@MOG-808-1:2 reaches 1.08 × 10–1 S·cm–1. Next, MOF-808@MOG-808-1:2 was blended with chitosan (CS) to obtain composite proton exchange membranes (PEMs), namely, CS@MOF-808@MOG-808-1:2-Y (Y = 5%, 10%, or 15%) with the maximum proton conductivity reaching 1.19 × 10–2 S·cm–1 at 353 K and 93% RH for CS@MOF-808@MOG-808-1:2-10% with additional stability. The conductive mechanisms of the composite materials were revealed by activation energy calculation. This investigation not only proposes a simple grinding–blending method for the development of MOF-doped composite materials for proton conductivity but also provides a producting material basis for future applications of MOFs in proton exchange membrane fuel cells (PEMFCs).
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Fei Zhou,Jinchao Wang,Xuming Jiang,Zhangfeng Zhao,Jiang Shi,Lipeng Hu,Baiyi Lu,Jiyu Peng
Grinding is an essential process in green tea powder production, which greatly affects the final quality. However, in-depth studies on process parameter-quality correlations are lacking, especially regarding the multiple process parameters induced variability. In this work, the influence of process parameters (ambient temperature, rotational speed, and grinding time) on physicochemical and sensory metrics of green tea powder was investigated with univariate and multivariate analysis. Both rotational speed and grinding time contribute to reducing the particle size and water holding capacity (WHC), and increasing lightness, greenness, and yellowness of green tea powder, while low ambient temperature can help to improve the WHC and flowability. Rotational speed is significantly related to the concentrations of gallic acid, catechin, epigallocatechin gallate, and epigallocatechin gallate ( p < 0.01). Rotational speed and grinding time are closely related to the final appearance of green tea powder, while temperature is the dominant factor influencing its aroma.
研究领域:
食品科学
·
植物学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2019
·
IF 3.327
Fashe Li,Zuowen Liu,Zihao Ni,Hua Wang
The composition of biodiesel significantly influences its lubrication performance. Gas chromatography, high frequency reciprocating friction, and wear test machines were used to determine the composition and abrasive spot diameter of biodiesels produced from fourteen different oil feedstocks. At the same time, the relationship between the grinding point diameter and chemical composition of biodiesel was quantified. The main components of the biodiesel are methyl stearate, methyl palmitate, methyl oleate, and methyl linoleate, with an average content of 92.18%. Among the various types of biodiesel, rubber seed methyl ester has a minimum grinding point diameter of 169.71 μm. Prickly ash methyl ester has the largest grinding point diameter of 187.35 μm. A linear correlation prediction model of wear point diameter was established (R = 0.91).
研究领域:
能源科学
·
化学工程
✓ 已验证
DOI
高影响因子
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
·
2015
·
IF 2.101
Yanghuan Ye,Xingwang Zhang,Tianpeng Zhang,Huan Wang,Baojian Wu
Niclosamide is an anthelmintic drug that also demonstrates great potential in fighting against cancers. However, parenteral delivery of niclosamide is challenged due to its insoluble property. This study aimed to develop an injectable formulation for niclosamide using nanocrystals. Niclosamide nanocrystals were prepared by wet media milling technique and characterized by electronic microscopes, differential scanning calorimetry, powder X-ray diffractometry and drug release, etc. The resulting nanocrystals using Tween 80 as the stabilizer were approximately 235 nm in particle size and showed a satisfactory stability. Pharmacokinetic studies revealed that there was no significant difference in plasma concentration-time profiles between nanocrystals and the control formulation (i.e. drug solution). By contrast, a significant difference in tissue distribution was observed at 2 h. Further, niclosamide nanocrystals presented a comparable antitumor effect to the drug solution against EC9076 cell line. We concluded that the nanocrystal formulation with solution-like behaviors should be a promising choice for intravenous delivery of niclosamide.
研究领域:
药剂学
·
肿瘤学
·
药物递送系统
✓ 已验证
DOI
PubMed
高影响因子
eScience
·
2022
·
IF 0
Hanyin Zhang,Renzong Hu,Sirui Feng,Zhiqun Lin,Min Zhu
SiO-based materials represent a promising class of anodes for lithium-ion batteries (LIBs), with a high theoretical capacity and appropriate and safe Li-insertion potential. However, SiO experiences a large volume change during the electrochemical reaction, low Li diffusivity, and low electron conductivity, resulting in degradation and low rate capability for LIBs. Here, we report on the rapid crafting of SiO–Sn 2 Fe@C composites via a one-step plasma milling process, leading to an alloy of Sn and Fe and in turn refining SiO and Sn 2 Fe into nanoparticles that are well dispersed in a nanosized, few-layer graphene matrix. The Sn and Fe nanoparticles generated during the first Li-insertion process form a stable network to improve Li diffusivity and electron conductivity. As an anode material, the SiO–Sn 2 Fe@C composite manifests high reversible capacities, superior cycling stability, and excellent rate capability. The capacity retention is found to be as high as 95% and 84% at the 100th and 300th cycles under 0.3 C. During rate capability testing at 3, 6, and 11 C, the capacity retentions are 71%, 60%, and 50%, respectively. This study highlights that this simple, one-step plasma milling strategy can further improve SiO-based anode materials for high-performance LIBs.
研究领域:
材料科学
·
能源存储技术
·
纳米技术
✓ 已验证
DOI
Reaction Kinetics Mechanisms and Catalysis
·
2021
·Vol. 134
·期 2
·837-849
·
IF 2.081
Zhao Xinhong,Niu Li,Hao Zongyi,Long Xuefeng,Wang Dongliang,Li Guixian
SSZ-13 has been widely used in catalysis and adsorption due to its excellent hydrothermal stability and large specific surface area. It was reported that the long crystallization time was one of the primary challenges limiting its industrial progress. In this paper, we reported a novel solid-state grinding route of synthesizing SSZ-13 zeolite, which was based on interzeolite transformation strategy and promoted by sodium persulfate (Na 2 S 2 O 8 ). The effects of the amount of Na 2 S 2 O 8 and crystallization time on the purity and crystallinity of SSZ-13 zeolite were studied by XRD measurements in detail. The results indicated that the crystallization time could be significantly shortened from 72 to 24 h when the molar ratio of Na 2 S 2 O 8 /SiO 2 was changed from 0 to 0.01, proving that Na 2 S 2 O 8 has the ability of accelerating the crystallization of SSZ-13 as a hydroxyl radical reagent. Three typical SSZ-13 materials and a reference sample were used as the catalysts for methanol-to-olefins reaction (MTO) and their physicochemical properties were analyzed by SEM, N 2 physisorption and NH 3 –TPD techniques. The SEM characterization results showed that the crystal size of SSZ-13 synthesized in the presence of Na 2 S 2 O 8 was larger than that of the one in the absence of it. The NH 3 –TPD results showed that the introduction of Na 2 S 2 O 8 could modulate the acid properties of SSZ-13 zeolites. The MTO tests revealed that the catalytic lifetime of one sample with Na 2 S 2 O 8 promoter (SSZ-13-0.01M-24h) was much longer than that of the other three samples. The observed difference in catalytic stability was mainly attributed to their various concentrations of medium strong acid sites.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2022
·
IF 5.876
Huijie Xie,Wei Xu,Saiai Ran,Xiaolong Li,Bin Li,Yanyan Li,Lei Wang
Green synthesis of zeolite has been made much progress due to solvent-free grinding methods. Although solid-state synthesis is a simple green process with a high yield, its kinetics of the solid-phase crystallization process is still slow and the precursor materials are not uniformly heated throughout the reactor resulting into the poor uniformity of the particles. Herein, we report a high-efficiency organotemplate-free synthesis of ZSM-5 combining solid state grinding and steam-assisted crystallization. Solid state grinding (SSG) of aluminosilicate precursor avoids usage of solvent and steam-assisted conversion (SAC) in an organic-template-free condition grants a fast crystallization rate of ZSM-5. More importantly, the vapor fulfilled in the reactor ensures uniform heating of solid feedstock for crystallization of ZSM-5, leading the high crystallinity and the uniform particle size distribution . This combination can guarantee 100% relative crystallinity of ZSM-5 in 12 h, compared to that of 80% crystallinity from sole solid state at the same crystallization temperature (180 °C). Furthermore, this combination can achieve 83% relative crystallinity of ZSM-5 at 160 °C, compared to that of 37% crystallinity from the solid state alone. Highly dispersed ZSM-5 zeolite with adjustable SiO 2 /Al 2 O 3 ratio is prepared by steam-assisted crystallization of grinding solid raw materials. The catalytic activity of ZSM-5 catalyst from this combination strategy for the acetalization of cyclohexanone is superior to that of the solid-state method alone. This sustainable and green synthesis method provides a potential way for the preparation of zeolites in an industrial scale.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2023
·
IF 9.4
Sabereh Nazari,Fatemeh Sadat Hoseinian,Jiahao Li,Mehdi Safari,Hamid Khoshdast,Jinlong Li,Yaqun He
The present work aims at the investigation and advanced simulation of the synergistic effect of grinding conditions and sub-micron (nano) bubbles (NBs) on the zeta potential mechanism of spent lithium-ion batteries (LIBs). For this purpose, the variation of the zeta potential of electrode active materials under different conditions was measured based on an effective Historical Data (HD) experimental design . The impact of operating variables including grinding time (0–25 min), pH (4.5–11.5), collector type (collectorless, n-dodecane, kerosene, and diesel oil), and NBs (absence and presence) were assessed through one-way analysis of variance (ANOVA). The process was then simulated using a genetic algorithm (GA) as an optimization algorithm of the artificial neural network (ANN). The statistical results indicated that the process was significantly influenced by pH, collector, and NBs (p value < 0.05) through a nonlinear trend. Although the individual effect of grinding time was not significant, a complex nonlinear interaction between grinding time and pH was observed. The effect of collectors followed the order of diesel oil > n-dodecane > kerosene; however, the effect of collectors was inverted at a pH of 10. Finally, the intelligent simulation results revealed that the process could be modeled using a genetic algorithm with a determination coefficient and error of 94.44 % and 3.28 %, respectively.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 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）