JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Shutian Ma,Enjie Diao,Hongyu Zou,Zhuang Shi,Yi Yang,Liming Zhang,Jinglin Zhang
Electron beam irradiation (EBI) was used to pretreat the solo-bulb fresh garlic (SBFG) to shorten the production cycle of solo-bulb black garlic (SBBG). The critical physicochemical indicators were analyzed and compared between EBI pretreated and commercial SBBG in this study. The results showed that EBI pretreatment significantly accelerated the browning reactions by destroying the cell structure of SBFG, and obviously shortened the production cycle of SBBG to 9 days. The total acid (TA), total polyphenol (TP), and total flavonoid (TF) contents in the EBI pretreated SBBG were all obviously increased compared with those of the control without EBI pretreatment, which were beneficial to improving the quality of SBBG. Meanwhile, the 5-hydroxymethyl-2-furaldehyde (5-HMF) and acrylamide contents as potentially harmful substances to human health were also significantly increased within the safe levels. The alliin content was more affected by the EBI pretreatment than other amino acids in SBBG as the irradiation dose exceeded 6 kGy. These results indicate that EBI pretreatment can be an alternative technology to improve the production efficiency of SBBG and apply in industrial production.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
MICRON
·
2018
·
IF 1.728
Xuanyu Chen,Zhiwei Wang
Chemical and structural instabilities of lead halide perovskites remain a major obstacle to their large-scale applications in photovoltaic solar cells and optoelectronic devices. Herein we report on a comparative investigation of electron beam irradiation effects on (all-inorganic) CsPbI 3 and (organic-inorganic hybrid) CH 3 NH 3 PbI 3 halide perovskite thin films by transmission electron microscopy. Upon continuous electron beam irradiation with high dose rates, CsPbI 3 exhibits rather rapid morphological change and compositional degradation within irradiated regions, which are attributed to the radiolysis effect and probably assisted by electron beam heating and Coulomb forces. In contrast, for the freestanding, polycrystalline CH 3 NH 3 PbI 3 thin films, significant structural damage mainly occurs on/outside the periphery of the irradiated regions, while, within the irradiated areas, the structural configurations appear rather intact. The electron beam induced electric field effect is suggested to be the primary reason for the unusual damage phenomenon. The building up of induced electrical fields in CH 3 NH 3 PbI 3 is probably pertinent to its some unusual structural properties (e.g., rotational dynamics of organic cations), but should be also promoted by the unavoidable modifications of physical properties during the film preparation and electron beam focusing. The study provides an insight for exploring the fundamental origin of structural instabilities and property degradation of halide perovskites.
研究领域:
材料科学
·
化学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2019
·Vol. 36
·期 5
·940-945
·
IF 1.071
Shi Chengying,Yang Jiayu,Liu Yang,Wang Yanmiao,Xu Wenge,Xu Yiquan,Hu Wei,Liu Baijun
The surface-modified Al 2 O 3 particles were introduced into polyethylene(PE) to enhance the thermal conductivity, and PE/Al 2 O 3 cross-linked networks with improved thermal and mechanical properties were prepared through electron beam(EB) irradiation technology. The incorporation of reactive irradiation sensitizer was useful in fabricating a high degree of cross-linking(DC) PE networks under a low irradiation dose. In the PE sample containing 2% sensitizer, DC ca. 67.1% could be obtained under 60 kGy(1 kGy=1000 J/kg). EB-irradiation greatly improved the tensile stress of PE-based samples, and the tensile stresses of the samples with 0.2%—5% TMPTA(trimethylolpropane triacrylate) under 60 kGy were 24.61—27.77 MPa. All the EB-irradiated samples had higher Vicat softening temperatures than the samples without irradiation. After treatment at 120 kGy, the Vicat softening temperatures of PE-Al 2 O 3 -44/ TMPTA-2 increased from 127 °C to 130.4 °C. SEM images revealed that PE-Al 2 O 3 -50 samples with increased amount of Al 2 O 3 particles showed a conduction “pathway,” and thermal conductivity reached 0.67 W/(m·K). Thus, high-performance pipes were successfully extruded, which could satisfy the static hydraulic blasting test and exhibit improved thermal conduction capability.
研究领域:
材料科学
·
热传导工程
✓ 已验证
产品关联
DOI
高影响因子
RADIATION PHYSICS AND CHEMISTRY
·
2023
·
IF 2.9
Junhui He,Qi Ye,Yi Zhu,Miao Yang,Long Zhao
In this study, the degradation of ciprofloxacin (CIP) was investigated in the synergetic system of electron beam irradiation (EBI) combined with graphite carbon nitride/carbon nanodots (g-C 3 N 4 /CDs). The results suggested that the presence of g-C 3 N 4 /CDs could not only promote the degradation of CIP but also significantly enhanced the mineralization ratio. At 25 kGy, the mineralization ratio increased from 18.1% to 69.0% while g-C 3 N 4 /CDs was added. Regeneration experiments revealed that the g-C 3 N 4 /CDs composite possessed good reusability. In addition to finding that the presence of CO 3 2− , HCO 3 − , NO 3 − and NO 2 − obviously restrained the radiolysis process of CIP, the adding of Cl − and SO 4 2− could also have slight inhibitory effects. The effect of various water matrices in EBI&g-C 3 N 4 /CDs systems suggested that the degradation efficiency decreased in lake and tap water. Moreover, the studies in the presence of different radical scavengers suggested that ·OH was the main reactive species in the degradation process. The possible degradation pathway of CIP was proposed in the light of intermediate products using Liquid chromatograph-mass spectrometer (LC–MS) analysis coupled with DFT calculations.
研究领域:
环境科学
·
辐射生物学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xiang Ye,Shengqi Jiang,Wei Niu,Rong Bai,Chunjie Yang,Siying Wang,Ziwei Li,Linlu Zhang,Huiyu Han,Jing Xi,Wu Ding
The influence of electron beam irradiation (EBI) treatment on the modification of gelatin-galactose glycosylation was thoroughly examined. The results of the degree of grafting and browning revealed that EBI triggered the glycosylation reaction of gelatin. The degree of glycosylation exhibited a gradual increase with the rising irradiation dose, reaching a maximum of 25 kGy. Moreover, the irradiation process opened up gelatin's internal structure, exposing its hydrophobic groups. This exposure led to an enhancement in sample surface hydrophobicity. The fluorescence intensity at the maximum emission wavelength of the fluorescence spectra decreased; Fourier infrared spectroscopy demonstrated a new absorption peak at 1074 cm −1 for the glycosylation product. These findings substantiate that gelatin formed a new product through covalent bonding with galactose. Glycosylation boosted the emulsification stability of gelatin from 1.92 min to 10.42 min and improved its emulsification and rheological properties. These outcomes affirm that EBI can effectively induce the glycosylation reaction of gelatin, thereby enhancing its functional properties. In addition, EBI has the potential to supplant the conventional heating glycosylation method. This study lays a solid theoretical foundation for the future application of glycosylation and gelatin.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 32
·1-11
·
IF 2.8
Yang Shiju,Qian Libing,Zhang Bo,Wang Tingting,Li Yunfei
The method of preparation is a critical factor affecting the structure and properties of Bi 2 O 3 material. In this work, Bi 2 O 3 was synthesized through calcination (denoted as Bi 2 O 3 –C) and hydrothermal methods (denoted as Bi 2 O 3 –H), utilizing bismuth-based metal–organic framework (Bi–MOF) as the precursor. As an electrode material for supercapacitors, Bi 2 O 3 –H demonstrated outstanding rate performance (515 F g −1 at 50 A g −1 ) and remarkable cycle stability (74% retention after 4000 cycles). Subsequently, the Bi 2 O 3 -H underwent further processing through electron beam irradiation (EBI), resulting in a sample designated as Bi 2 O 3 –I. Following EBI treatment, the crystalline characteristics of Bi 2 O 3 –I and the concentration of oxygen vacancies (OVs) exhibited a significant improvement, thereby augmenting the material's conductivity. Because the positively charged OVs can quickly attract OH − from the electrolyte to the electrode surface, thereby accelerating the REDOX reaction, the current control mechanism of Bi 2 O 3 –I is partially derived from a surface-controlled pseudo-capacitance process. The irradiated Bi 2 O 3 -I electrode demonstrated superior capacitance (990 F −1 at 2 A g −1 ), enhanced rate performance (585 F −1 at 50 A g −1 ), and remarkable cycling stability (83% retention after 4000 cycles).
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2022
·
IF 6.056
Gang Wang,Dan Wang,Chuan Qing,Li Chen,Peng Gao,Min Huang
In this study, Chinese yam ( Dioscorea opposita Thunb. ) flour was irradiated at doses of 1.79, 6.06, 10.07 and 14.97 kGy of the electron beam, to analyze the effects of electron beam irradiated (EBI) on the solubility, transmittance, swelling, paste properties, and the microstructure of starch in yam flour. Results showed that EBI degraded the starch component of yam flour, and presented an increase in solubility from 15.59 to 30.05%, transmittance from 8.11 to 11.63%, and a decrease in swelling from 9.59 to 7.26 g/g. Also, we observed that there was a significant decrease in the paste properties of yam flour with the elevation of EBI. The scanning electron micrographs and Fourier transforms infrared spectra further illustrated the effect of EBI on the molecular structure, but not the surface structure of starch in yam flour. C -type crystalline structure in yam starch was also observed in both control and treatment, while irradiated yam starch had a lower crystallinity than that of unirradiated treatments. Yam starch exhibited a decrease trend in their thermal property values with irradiation treatment. This study concludes that the physical properties of yam flour instructed by EBI may be used in a wide application in the food and pharmaceutical industrie.
研究领域:
食品科学
·
植物学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Huishan Shen,Jiangtao Yu,Junqing Bai,Xiangzhen Ge,Wei Liang,Gulnazym Ospankulova,Marat Muratkhan,Guoquan Zhang,Wenhao Li
The ball milling (BM), electron beam irradiation (EBI), the combination of them, and their effects on granules morphology, multiscale structure, physicochemical properties, and digestibility of corn starch are discussed in this paper. Both BM and EBI reduced crystallinity , amylopectin molecular weight (Mw), pasting viscosities, gelatinization temperatures, and resistant starch (RS) content, but increased amylose Mw and rapidly digestible starch content. BM treatment damages the starch granules, which makes them easier to attack by free radicals of subsequent EBI treatment. In addition, the BM pretreatment promoted starch chain depolymerization and crystalline structure destruction, reinforcing the joint effect of subsequent EBI treatment. Therefore, BM-EBI-starches exhibited lessened crystallinity, amylopectin Mw, pasting viscosities, gelatinization temperatures, enthalpy and RS content than native and single-treated starch. This paper would like to reference potential industrial applications of BM and EBI technologies to modify starch.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD PROCESS ENGINEERING
·
2021
·Vol. 44
·期 7
·e13699
·
IF 2.356
Yali Yu,Mengmeng Feng,Qi Wang,Mingyuan Liu,Feng Gao,Songyi Lin
Cornstarch was irradiated under different doses of electron beam radiation (0–5.4 kGy), and the physicochemical properties of starch were analyzed. The dextrose equivalent (DE) values, which is a representative indicator of saccharification in the sugar production process, was measured after the EBI pre-treated cornstarch at high concentration (45%, wt/wt) was hydrolyzed by thermostable α-amylase and glucoamylase. The reducing sugar content of the cornstarch markedly increased with increasing irradiation dose. In addition, reduced transmittance, flexural vibration of chemical bond, the viscosity, and the relative crystallinity decreased with increasing irradiation dose. Scanning electron microscope (SEM) showed that the penetrating pinholes and pits were observed on the surface of irradiated cornstarch granules. After being hydrolyzed by thermostable α-amylase and glucoamylase, slurry of cornstarch EBI pre-treated at dose of 4.32 and 5.4 kGy exhibited the low viscosity values and high dextrose equivalent (DE) values. The resulting low viscosity values and high dextrose equivalent (DE) values slurry from EBI pre-treated cornstarch have potential for use in syrup industry. Practical Applications The slurry made from EBI pre-treated cornstarch at the concentration of 45% (wt/wt)exhibited a rather low viscosity values and high dextrose equivalent (DE) values compared with that of the slurry (45% wt/wt)made from the non-EBI pre-treated cornstarch. Therefore, the use of starch modified by electron beam irradiation treatment could lead to reduce corn syrup processing costs. Corn syrup is an important raw material of bakery industry. The reduction of its production cost is of great significance for stabilizing the market price of bakery food and promoting the coordinated development of bakery industry.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
Catalysts
·
2024
·Vol. 14
·期 8
·528
·
IF 3.8
Dongsheng Xiang,Zhihao Wang,Jingwen Xu,Hongdan Shen,Xiaodong Zhang,Ning Liu
Photocatalysts, such as TiO2, are widely used in photoreduction. However, drawbacks like their wide band gap and short carrier lifetime lead to lower efficiencies with their use. Introducing defects and forming heterostructures of TiO2could extend the carrier’s light-harvesting range from UV to visible light and enhance its lifetime. Herein, an electron-beam irradiation-defected TiO2was induced in MIL-88B(Fe). The structure of the material was characterized using XRD, FT-IR, TEM, HRTEM, and XPS techniques. Remarkably, TiO2under 300 kGy electron-beam irradiation performed the best with a series of 0, 100, 300, and 500 kGy irradiation ratios. PL and UV–vis DRS were utilized to measure the material’s optical properties. The introduction of MIL-88B(Fe) expanded the light response range, reduced the optical band gap, and lengthened the carrier lifetime of the defective TiO2composite photocatalysts, resulting in superior TC photoreduction capabilities of 88B5%300, which degraded 97% of tetracycline (10 mg/L) in water after 120 min.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
C-Journal of Carbon Research
·
2025
·Vol. 11
·期 2
·31
·
IF 2.9
Wenge Xu,Kuan Lu,Huinan Li,Chen Xiong,Yang Liu,Baijun Liu
In this study, some polyethylene/graphene nanoplatelet (PE-GE) composites are successfully prepared via a melt-blending process used for thermally conductive pipes. A comparison study on the effect of different fillers (i.e., graphene nanoplatelet and aluminum oxide) on thermal conductivity is conducted. The conductivity was over 2.5 W/m·K when 30 fractions of GE were involved. Furthermore, an electron beam irradiation technology is utilized to obtain the cross-linked composite materials with excellent comprehensive performance. The relationships between thermal conductivity and filler content, and irradiation dose and gel content have been carefully investigated. Finally, a polyethylene/graphene composite with 0.72 W/m·K is used to extrude a pipe, which exhibits some attractive properties for floor heating pipes.
研究领域:
材料科学
·
热能工程
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 4
·1021
·
IF 5.076
Hui Zhang,Tao Xu,Yatong Zhu,Wen Wang,Hao Zhang,Dundong Yuan,Litao Sun
Understanding the mechanism of metal oxidation processes is critical for maintaining the desired properties of metals and catalysts, as well as for designing advanced materials. In this work, we investigate the electron beam induced oxidation of silver using in situ transmission electron microscopy. The additions of Ag-O columns on {111} and {110} planes were captured with atomic resolution. Interestingly, oscillatory growth on {110} planes was observed, which resulted from the double effect of electron beam irradiation. It was found that not only thermodynamic factors but also kinetic factors played significant roles in morphology evolutions. These results can facilitate the fundamental understanding of the oxidation process of Ag and provide a promising approach for the fabrication of desired nanostructures.Keywords:oxidation;crystal growth;electron beam irradiation;in situ;transmission electron microscopy
研究领域:
材料科学
·
物理化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）