Article
Chemistry, Applied
Jian Zou, Meijuan Xu, Yifan Zou, Bao Yang
Summary: The growth stage significantly influences the qualities of Chinese yam flour, with DS-FF having higher fat content and thermal stability compared to ES-FF. Both types of Chinese yam flour granules showed consistent size and shape, with differences in crystalline structure and amylose-lipid complex formation observed between the two growth stages.
FOOD HYDROCOLLOIDS
(2021)
Article
Food Science & Technology
Zhenzhen Zhang, Liang Zhang, Wei Liu, Qiannan Liu, Ruixuan Zhao, Honghai Hu
Summary: In this study, the effects of adding potato soluble dietary fiber (PSDF) at different concentrations during concentration freeze-thawing on the structural and physicochemical properties of potato starch were investigated. It was found that PSDF could inhibit the leaching of amylose, increase short-range ordered structures, and reduce crystallinity and viscosity of potato starch treated by freeze-thawing. Furthermore, PSDF could improve the properties of freeze-thaw-treated potato starch gel.
FOOD AND BIOPROCESS TECHNOLOGY
(2023)
Article
Geochemistry & Geophysics
Gang Huang, Yunqin Yang, Mingyu Liu, Jianhua Zhang, Faping Liu, Akisa David Mwangi, Haiwang Ye
Summary: This study investigates the effects of the number of freezing-thawing cycles, dry density, and average particle diameter on the mechanical properties of tailings. The results show that the uniaxial compressive strength of the tailings decreases with each freeze-thaw cycle and stabilizes after seven cycles. Furthermore, increasing the number of freeze-thaw actions leads to an increase in the porosity of the tailings and a higher stress concentration.
Article
Materials Science, Multidisciplinary
Kazi M. Zakir Hossain, Vincenzo Calabrese, Marcelo A. da Silva, Julien Schmitt, Saffron J. Bryant, Md Towhidul Islam, Reda M. Felfel, Janet L. Scott, Karen J. Edler
Summary: This study compares films prepared from never-dried and freeze-dried cellulose nanocrystals in terms of their microstructural, optical, thermal, crystallization, and water absorption properties, showing that freeze-drying significantly affects the transparency and water absorption capacity of the films.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Yanxiao Mu, Zizhao Zhang, Tiansheng Zhou, Zekun Guo
Summary: Natural disasters such as collapse, landslides, and debris flows are common in the Yili River Valley due to its unique terrain and climate. The occurrence of loess landslides, which are a significant proportion of these disasters, is crucial to study. This study investigates the impact of mica content on the mechanical properties of loess in the Yili River Valley under freeze-thaw cycling conditions. The findings show that the shear strength of the loess is negatively affected by both mica content and freeze-thaw cycles.
Article
Food Science & Technology
Gang Wang, Dan Wang, Chuan Qing, Li Chen, Peng Gao, Min Huang
Summary: In this study, the effects of electron beam irradiation (EBI) on the solubility, transmittance, swelling, paste properties, and the microstructure of starch in Chinese yam flour were analyzed. The results showed that EBI degraded the starch component of yam flour and affected its solubility, transmittance, and swelling. EBI also had a significant impact on the paste properties of yam flour. The molecular structure of starch in yam flour was affected by EBI, while the surface structure remained unchanged. Yam starch exhibited lower crystallinity after irradiation. This study suggests that the physical properties of yam flour induced by EBI could be widely used in the food and pharmaceutical industries.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Applied
Meijuan Xu, Jian Zou, Xiaodong Zhao, Yongting Feng, Ruoyu Duan, Bao Yang
Summary: Biotransformation is an effective technique to modify carbohydrates. In this study, lactobacteria fermentation of Chinese yam starch was conducted and its effects on microstructure, crystallinity, and thermal parameters were investigated. NMR spectra analysis revealed the acid hydrolysis of glucose from both the backbone and branch of the starch after 72 hours of fermentation.
Article
Chemistry, Applied
Zixuan Wang, Meijun Han, Yongguo Liu, Yanwen Wu, Jie Ouyang
Summary: This study compared the multiscale structure of chestnut starch from different origins and found that amylose content was positively correlated with gelatinization temperature, while reduced amylose content and presence of long chains of amylopectin enhanced crystallization.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Soil Science
Yutian Zuo, Fanxiang Meng, Tianxiao Li, Qiang Fu, Dong Liu, Renjie Hou, Qinglin Li, Mo Li
Summary: The appropriate application of biochar has significant effects on mitigating soil freezing-thawing deformation, enhancing soil aggregate stability, and increasing organic matter content.
Article
Construction & Building Technology
Xu Gong, Hongfa Yu, Chengyou Wu
Summary: This study quantitatively analyzes the macroscopic mechanical properties and interfacial strength of concrete under freeze-thaw action and finds that the properties of the coarse aggregate-mortar interface affect the mechanical properties and frost resistance of concrete to a certain extent.
STRUCTURAL CONCRETE
(2023)
Article
Chemistry, Applied
Sreejani Barua, Andreas Hanewald, Mathias Bachla, Markus Mezger, Thomas A. Vilgis, Prem Prakash Srivastav
Summary: Starch isolated from elephant foot yam was modified using heat moisture treatment with different heating sources. The modified starch showed changes in morphology, surface roughness, thermal properties, and rheological behavior. The modification increased surface roughness and amylose content, and resulted in higher gelatinization temperature and lower crystallinity. The modified starch also exhibited improved elastic behavior. Particle size and short amylopectin chains were found to be positively correlated with the dynamic moduli of the modified starch.
FOOD HYDROCOLLOIDS
(2022)
Article
Environmental Sciences
Zhongping Yang, Keshan Zhang, Xuyong Li, Shupei Ren, Peng Li
Summary: Solidification/stabilization (S/S) is the predominant remediation technology for heavy metal contaminated soils. Freezing-thawing (F-T) cycles can deteriorate the effectiveness of S/S on lead-contaminated soils. Using different proportions of cement, lime, and fly ash as compound curing agents can improve the strength and chemical stability of treated soils. The results show that the duration of F-T changes the strength deterioration mechanism of cured lead-contaminated soils. Structural damage induced by prolonged F-T becomes the main influencing factor. Fly ash and cement help maintain the strength of treated soils under long-term F-T conditions. Lime is favored for lead stabilization. A higher proportion of lime and cement in the curing agent formulation reduces the risk of lead leaching.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Yaxian Hu, Xianwen Li, Simin Jiang, Junying Chen, Baowen Yan
Summary: Freeze-thaw is a simple, cost-effective, and efficient method for wastewater purification. This study investigated the microbial compositions and functions in meltwater during progressive thawing and their effects on water quality. The results showed that microbial diversity decreased from early to late stages of thawing, and the microbial structures differed significantly. The functional profiles also varied, with certain microbial subsets being selectively removed or enriched during progressive thawing. These findings highlight the importance of understanding the temporal fluxes of microbes for wastewater reuse using freeze-thaw protocols.
Article
Engineering, Civil
Shuyan Yang, Xiaolong Chen, Min Han, Junjie Song
Summary: The mechanical responses of reinforced concrete columns subjected to sulfate attack, dry-wet cycles, and freeze-thaw cycles under eccentric loads were evaluated. The increase of sulfate dry-wet cycles decreased the ultimate bearing capacity and energy absorption of the columns, especially for those with large eccentricity. The addition of freeze-thaw cycles further reduced the ultimate bearing capacity and increased the deterioration degree. Small eccentricity columns exhibited less variation in ultimate bearing capacity compared to large eccentricity columns.
Article
Construction & Building Technology
Bailin Li, Fei Luo, Xiaodong Li, Jiaming Liu
Summary: This paper presents an experimental study on the role of rice husk ash (RHA) in the mechanical improvement of soil. The results show that the incorporation of RHA substantially enhances the soil's strength, stiffness, and ductility. The study findings contribute to guiding the effective application of RHA in civil engineering and promoting the sustainable development of construction materials.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2024)
