Innovative Food Science & Emerging Technologies
·
2025
·
IF 6.8
Fang Fang,Zijing Tian,Lihua Huang,Yongjian Cai,Paul Van der Meeren,Jianhui Wang
In this study, the effects of simulated environment on the properties and stability of emulsion gels prepared with cellulose nanofibers/dihydromyricetin composite particles were comparatively analyzed. As the NaCl concentration increased, the droplet size decreased while the viscosity was significantly enhanced. The lipid hydroperoxide content on 15 d increased from 1.48 to 2.39 mM while malondialdehyde decreased from 2.13 to 1.66 μM. The droplet size decreased with decreasing pH, and the highest gel strength and the best oxidative stability were obtained at pH 5. These were attributed to different stabilization mechanisms induced by pH and NaCl during the formation of emulsion gels. The Pickering emulsion gel exhibited good freeze-thaw stability only when NaCl was higher than 200 mM while good centrifugal stability was monitored for all emulsion gels. These results indicate a great potential of cellulose/flavonoids composites in various processing prospects and in the development of novel food stabilizers and ingredients.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2023
·
IF 4.6
Bao-rang Li,Xiang-chen Liu,Hao-zhi Chen,Yun-yi Wu,Shi-guang Zhang,Ming-yong Jia,Fei Chen
After being fabricated successfully by spark plasma sintering technology, corrosion performance of aluminum nitride-molybdenum gradient material was investigated using X-ray diffraction, scanning electron microscope , XPS techniques, etc. in a simulated liquid metal battery environment with LiF–LiBr–LiCl eutectic salt as electrolyte. The research results indicated that low temperature corrosion at 550 °C occurs mainly in pure aluminum nitride region with the corrosion products grown on the grain boundaries including alumina , nitrogen-lithium, aluminum-lithium intermediate phase or their complex compounds. Moreover, the formed corrosion product morphology is influenced significantly by aluminum nitride distribution. As the gradient compositions developed towards the pure molybdenum zone, the product morphologies tended to evolve in a sequence of sphere, flake and octahedron. At temperatures higher than 600 °C, alumina tends to be dissolved in molten salt vapor and molybdenum starts to be corroded simultaneously resulting in a substitute of the formed lithium aluminum molybdenum oxide phases for alumina in the final corrosion products. Mass change study on the samples suggested both the holding time and temperature have significant influences on the corrosion behavior of aluminum nitride-molybdenum gradient material. At temperatures higher than 700 °C, sudden change in sample mass accompanied by interface cracking would happen within the holding time of 100 h. Therefore, under long-term isothermal conditions, the serviced temperature of aluminum nitride-molybdenum functional gradient materials is suggested to be lower than 600 °C.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2024
·
IF 11.4
Yandong Yang,Xiangkun Jiang,Yi Yang,Jia Wang,Yahui Zhao,Shanshan Lin,Jiao Qu,Christopher J. Martyniuk,Yuanhui Zhao,Chao Li
Liquid crystal monomers (LCMs) are a new class of emerging pollutants with high octanol-water partition coefficients; however, their transformation behavior and associated risk to environments with high organic matter content has rarely been reported. In this study, we investigated the photodegradation kinetics, mechanism, and toxicity variation of 23 LCMs on leaf wax models (e.g., organic solvents methanol and n-hexane). The order of the photolysis rates of these LCMs were biphenylethyne LCMs > phenylbenzoate LCMs > diphenyl/terphenyl LCMs under simulated sunlight, while the phenylcyclohexane LCMs were resistant to photodegradation. The phenylbenzoate and biphenylethyne LCMs mainly undergo direct photolysis, while the diphenyl/terphenyl LCMs mainly undergo self-sensitized photolysis. The main photolysis pathways are the cleavage of ester bonds for phenylbenzoate LCMs, the addition, oxidation and cleavage of alkynyl groups for biphenylethyne LCMs, and the cleavage/oxidation of chains attached to phenyls and the benzene ring opening for diphenyl/terphenyls LCMs. Most photolysis products remained toxic to aquatic organisms to some degree. Additionally, two quantitative structure-activity relationship models for predicting k obs of LCMs in methanol and n-hexane were developed, and employed to predict k obs of 93 LCMs to fill the k obs data gap in systems mimicking leaf surfaces. These results can be helpful for evaluating the fate and risk of LCMs in environments with high content of organic phase.
研究领域:
环境科学
·
毒理学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTAL GROWTH & DESIGN
·
2020
·
IF 4.089
Mengya Li,Si Li,Weiwei Tang,Junbo Gong
Gout is a kind of severe joint disease caused by monosodium urate monohydrate (MSUM) deposition in the synovial fluid. Numerous studies have focused on the influences of the components in synovial fluid on the nucleation of MSUM in solution. Yet little is known about the pathological pathway of MSUM crystallization in vivo. Herein, the pathological crystallization pathway of MSUM was investigated in a simulated biological environment (0.15 M Na+ and pH 7.40 buffer). Optical and electron microscope images in combination with powder X-ray diffraction demonstrated that the formation of MSUM involves three stages of molecular aggregation to form fibril-like amorphous subunits, the agglomeration of these nanosized subunits, and the phase transition from amorphous to filamentous crystals. Further, Fourier transform infrared spectroscopy and Raman spectra show that the filamentous crystals bear a structure extremely similar to that of amorphous agglomerates. However, the amorphous form contains more water content in comparison to that of MSUM crystals, as unveiled by thermal analyses. The time-resolved dynamic light scattering and small-angle X-ray scattering data reveal the formation of fibril-like nanoprecursors in the early stage of nucleation and the structure evolution over time. Thus, a nonclassical crystallization mechanism for MSUM in a simulated joint environment was proposed.
研究领域:
医学
·
生物化学
·
材料科学
✓ 已验证
DOI
高影响因子
Food Chemistry-X
·
2022
·
IF 6.443
Jingjing Liu,Ya Li,Yanyun Chen,Dun Si,Xinfeng Zhang,Shihua Wu,Lei Zhang,Jinping Si
The total water-soluble polysaccharide (TP) of Dendrobium catenatum is composed of starch and active non-starch polysaccharides (NSPs) with glucomannan as the main structural type. Although the TP content has been used as a quality assessment indicator for many years, the NSPs content in samples from different environments and growth seasons have not been reported. In this study, we found that NSPs had stronger antioxidant activity than TP. The NSPs content was higher in wild-simulated environments including rocks and trees compared to plantings grown in greenhouse. The culture mode and growth period affected the ratio of NSPs and starch. Facility cultivation provided optimal growth conditions but produced more starch, whereas wild-simulated cultivation resulted in a higher ratio of NSPs, particularly in September. Therefore, cultivation by lithophytation and epiphytation may be preferable to facility plantings, which is expected to be enormously useful for the current production and quality control of D . catenatum .
研究领域:
植物学
·
药理学
·
农业
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）