Journal of Oleo Science
·
2024
·
IF 1.6
Chen Liu,Fu-sheng Chen
Effects of dry and wet grind on peanut oil and protein yield, oil bodies (OBs) stability, fatty acid composition, protein composition and functional characteristics were systematically analyzed. Results showed that peanut oil and protein yields reached highest at dry grind 90 s (92.56% and 83.05%, respectively), while peanut oil and protein yields were 94.58% and 85.36%, respectively, at wet grind 120 s. Peanut oil and protein yields by wet grind was 2.18% and 2.78% higher than that of dry grind, respectively. Surface protein concentration (Г) and absolute value of zeta potential of OBs extracted by wet grind (WOBs) were 11.53 mg/m 2 and 18.51 mV, respectively, which were higher than OBs extracted by dry grind (DOBs), indicating stability of WOBs was higher than DOBs. Relative contents of oleic acid and linoleic acid in peanut oil, essential and hydrophobic amino acids in protein extracted by wet grind were higher than dry grind. There was little difference in protein composition between wet and dry grind, but thermal denaturation degree of protein obtained by wet grind was lower than dry grind. Solubility, oil retention, emulsion stability, foaming and foam stability of protein obtained by wet grind were better than dry grind. Results from this study provided theoretical basis for grind pretreatment selection of aqueous enzymatic method.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
PubMed
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2022
·
IF 6.056
Zong-Qi Zhang,Si-Cong Chen,Qing-Lei Wang,Chun-Qin Liu,Jin-Hua Xiao,Da-Wei Huang
Particle size is an important indicator for determining the quality of products in the field of functional food. However, for edible insects, which will be important resources in the future, there is little information about the impact of particle size. In this study, traditional grinding technology and superfine grinding technology with additives were used to obtain six Protaetia brevitarsis powders, and the differences in physicochemical properties, powder properties and volatile components were determined. The results illustrated that superfine grinding technology could significantly increase the protein and total phenolic content (TPC) and improve the powder properties (including the bulk density, tap density, angle of repose, angle of slide, water holding capacity (WHC), and crystallinity index (CI)). Moreover, a total of 80 volatile components were preliminarily identified from the six P. brevitarsis powders, among which the type and relative content of volatile components in superfine grinding technology combined with 4 g/100 g additives (PBP4%) were the most abundant. In conclusion, superfine grinding technology can change the properties of the powder, which is related to the particle size. The results have a certain reference value for the development of superfine powder products of P. brevitarsis in functional foods.
研究领域:
食品科学
·
昆虫学
·
功能食品
✓ 已验证
产品关联
DOI
高影响因子
Minerals
·
2023
·Vol. 13
·期 12
·1550
·
IF 2.5
Shuai Ren,Cong Wang,Zhiyong Gao,Shihong Xu
In the field of mineral processing, the successful flotation of target minerals requires sufficient liberation through grinding. The aim of this paper is to compare and evaluate the performance of ball versus short cylindrical media for comminution of dolomite by point and line contact, respectively. The results of the grinding experiments indicate that short cylinders generate more angular particles with intermediate sizes and exhibit a higher grinding efficiency compared to balls. The Population Balance Model demonstrates the distribution of broken fragment sizes during the breaking stage for each size range. The results of the DEM (discrete element method) grinding simulation are consistent with the experimental findings in terms of the distribution of particle sizes, the shape of the particles, and the distribution of broken fragment sizes. Furthermore, short cylinders selectively produce more active {104} crystal surface of dolomite, which possess a higher adsorption capacity with collectors and are preferentially floated as the concentrate. In reverse flotation for removal of dolomite, tests confirm that the products obtained from grinding with short cylinders exhibit a higher flotation recovery of dolomite compared to those obtained from ball grinding. This study provides a reference scheme for optimizing the grinding and flotation processes of valuable minerals.Keywords:grinding media;dolomite;Population Balance Model;DEM grinding simulation;particle reactivities;flotation behaviors
研究领域:
矿物加工工程
·
材料科学与工程
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2025
·Vol. 32
·期 12
·3072-3085
·
IF 7.2
Zhang Qian,Liu Bo,An Changcong,Li Qiong,Liu Jiling,Wei Siyu,Fan Jiaxing,Sun Zhe,Zhang Dichuan,Pulatov Bakhtiyor
The effect of heavy metals on the properties and hydration of blast furnace slag–cement composites (BFS-CC) remain unclear. In this study, two BFS-CC (denoted as DBFS-CC and WBFS-CC) were prepared by dry and wet grinding of BFS, respectively. The effect of Cu(II) on BFS-CC’s properties and hydration was investigated by adding representative copper contaminants (CuO, CuCl 2 , and CuS) to the composites. Adding 1.0wt% CuO and 0.5wt% CuS increased the 3-d compressive strength of DBFS-CC by 14.9% and 5.7%, respectively, but suppressed the 3-d strength of WBFS-CC. This trend reversed at 28-d curing, where adding 1.5wt% CuO, 2.0wt% CuCl 2 , and 1.5wt% CuS enhanced the compressive strength of WBFS-CC by 23.4%, 6.2%, and 13.6%, respectively, but adversely affected the strength of DBFS-CC. For 28-d hydration, adding CuCl 2 decreased the hydration degree of DBFS-CC but enhanced that of WBFS-CC. Adding CuO promoted the hydration degree of both composites, while adding CuS exhibited inhibitory effects. DBFS-CC immobilized CuCl 2 better due to a higher hydration degree, while WBFS-CC immobilized CuO and CuS better due to having finer unhydrated BFS particles and a denser matrix. This study not only focuses on the Cu(II) immobilization effect but also reveals the differential effects of Cu(II) species on the hydration process, providing novel insights into heavy metal interactions in BFS-CC systems and their safe disposal.
✓ 已验证
产品关联
DOI
高影响因子
Foods
·
2021
·Vol. 10
·期 11
·2857
·
IF 4.35
Wenfei Tian,Jingyang Tong,Xiaoyue Zhu,Philipp Fritschi Martin,Yonghui Li,Zhonghu He,Yan Zhang
The health benefits from consumption of whole wheat products are widely recognized. This study investigated the effects of different pilot-scale milling methods on physicochemical properties, bioactive components, Chinese steamed bread (CSB), and Chinese leavened pancakes (CLP) qualities of whole wheat flour (WWF). The results indicated that WWF-1 from the reconstitution of brans processed by a hammer mill had the best CSB and CLP quality overall. WWF from entire grain grinding by a jet mill (65 Hz) contained the highest concentration of bioactive components including dietary fibers (DF) and phenolic acids. A finer particle size did not necessarily result in a higher content of phenolic antioxidants in WWF. DF contents and damaged starch were negatively correlated with CSB and CLP quality. Compromised reduced quality observed in CLP made from WWF indicated its potentially higher acceptance as a whole-grain product.Keywords:milling methods;dietary fiber;phenolic acid;steamed bread;leavened pancake
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
ADVANCED ENGINEERING MATERIALS
·
2022
·Vol. 25
·期 5
·2200175
·
IF 4.122
Meiqin Zeng,Youtao Pan,Weifeng Liu,Jie Cui,Zhongchen Lu,Min Zhu
This work prepares nanocrystalline tungsten carbide (WC) powder using conventional ball milling or plasma milling (P-milling) to process tungsten trioxide (WO 3 )–carbon (C) mixtures, with subsequent carbothermal reduction. The aim is to assess the effects of a discharge plasma on the microstructure of these materials. The results indicates that WC powders with particle sizes of less than 100 nm could be fabricated through heating at a relatively low temperature of 1150 °C for 1 h under vacuum after P-milling. This process is found to allow a lower processing temperature and provided more complete carburization in comparison with conventional ball milling. P-milling is determined to produce more loosely adhering WO 3 nanoparticles and a higher surface area, resulting in more reactive sites and a larger contact area between WO 3 nanoparticles and C atoms. This technique simultaneously generates more oxygen vacancies and defects on the surfaces of the WO 3 and C, respectively, based on the use of a plasma discharge. It is evident that this new technology permits nanocrystalline WC to be readily obtained from WO 3 and C in a reduced time span and at a lower cost and greater efficiency. This technique could also be used to fabricate WC nanopowders on an industrial scale.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
MINERALS ENGINEERING
·
2021
·
IF 4.765
Yang Cao,Xiong Tong,Xian Xie,Qiang Song,Wenjie Zhang,Yunpeng Du,Shengdong Zhang
Grinding plays an important role in the beneficiation process. Different grinding media can determine the size distribution, shape, and even the surface properties of the produced material. However, comprehensive research related to the effect of grinding media on the flotation performance of cassiterite is lacking. In the current study, the effects on the flotability of the products obtained by grinding with ceramic and stainless steel media were investigated using micro-flotation, laser particle size distribution analysis, inductively coupled plasma optical emission spectroscopy (ICP-OES), chemical element analysis, zeta potential measurements, field emission scanning electron microscopy-energy dispersive spectroscopy (FESEM-EDS), and X-ray photoelectron spectroscopy (XPS). The micro-flotation results demonstrate that the flotability of stainless steel ground cassiterite surpasses that of ceramic. The laser particle size distribution test reveals that the two grinding media do not have a strong impact on the particle size distribution. The ICP-OES and chemical element analysis results identify the higher iron content in the samples and pulp of stainless steel ground cassiterite as the principle influencing factor. The zeta potential analysis indicates that the dissolved iron ions absorbed on the cassiterite surface results in a positive shift of the mineral surface potential. This not only reduces electrostatic repulsion but also increases the active sites of salicylhydroxamic acid (SHA) chemisorption. FESEM-EDS results demonstrate the rougher surface and higher iron content of the stainless steel ground cassiterite compared to the ceramic ground cassiterite, thereby increasing the SHA adsorption. The stainless steel grinding cassiterite was observed to alter the chemical environment of Fe species on the cassiterite surface via XPS analysis, with Fe 2+ exhibiting a stronger reactivity and stability towards SHA compared to Fe 3+ . Thus, the stainless steel media ground cassiterite demonstrates an improved flotability performance compared to the ceramic equivalent.
研究领域:
矿物加工工程
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
·
2014
·
IF 2.006
Lin Zhong,Xingyi Zhu,Bo Yu,Weike Su
The amorphous solid dispersions of telmisartan salts were prepared by cogrinding, in presence of alkalizers and polyvinylpyrrolidone (PVPk30). Five alkalizers in this study were MgO, Na2CO3, K2CO3, NaHCO3 and meglumine. In soft mode using a roll mill, the drug could not form salt with MgO or NaHCO3, whereas partial drug had been transformed into salt with carbonates or meglumine. Under cogrinding, the organic base meglumine was easier to react with telmisartan than other two carbonates. For getting good dissolution performance, the drug had to be transformed into salt completely. A high intensity oscillating mill was applied for producing telmisartan meglumine salt. Multi-instrumental characterizations attested the formation of amorphous salt by high mechanical process, involving dissolution test, fourier transform infrared spectroscopy and powder X-ray diffractometry. It was evident that solid dispersions of telmisartan meglumine salt significantly increased the drug dissolution rate in intestinal fluid.
研究领域:
药剂学
·
药物化学
✓ 已验证
DOI
PubMed
高影响因子
Foods
·
2024
·Vol. 13
·期 20
·3216
·
IF 4.7
Tao Huang,Dan Ouyang,Shangyuan Sang,Caiming Li,Xiaosan Wang,Xiao Wang,Jiali Xing,Xiaohu Luo
The grinding process is one of the key factors affecting the quality of glutinous rice flour (GRF). As an emerging grinding method, semidry grinding aims to solve the problems of the high yield of wastewater in traditional wet grinding and the high content of damaged starch in dry grinding, in which the water content has a great influence on the quality of GRF. However, semidry grinding has not yet been formally put into production due to limitations such as the long time required to adjust the water content of rice grains. Therefore, this work was carried out to shorten the soaking time of glutinous rice (GR) by hot air pretreatment, and to conduct a systematic and in-depth study of the effect of water content on the quality of GRF, including water distribution, water hydration properties, thermal properties, rheological properties, and microstructure. The results showed that the GRF with higher water content had lower water solubility and higher enthalpy of pasting, which were due to the low content of damaged starch and the high degree of crystallization. The particle size of the GRF became smaller as the interaction between water and starch was enhanced and the GR was softened. In addition, the viscosity and elasticity of the GRF were also improved with an increase in water content. This work provides theoretical guidance for the improvement of semidry grinding to a certain extent.
研究领域:
食品科学
·
加工工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2020
·
IF 4.551
Yuxiang Liu,Wanrong Liu,Yuchao Lyu,Xinmei Liu,Jun Zhang,Yu Gu,Jiankun Huang,Svetlana Mintova,Zifeng Yan
A hierarchical SAPO-11 was prepared by a grinding synthesis method (GSM) and added as a promoter to increase the iso-paraffin yield of gasoline in fluid catalytic cracking (FCC) reaction. Compared to the classical hydrothermal method , the GSM leads to the creation of intra-crystalline mesopores with the assistance of a surfactant (Cetyltrimethyl Ammonium Bromide, CTAB). CTAB acts as a structure directing agent and as a hard template during the crystallization of SAPO-11. CTAB micelles formed the intra-crystalline mesopores in SAPO-11 crystals. The intra-crystalline mesoporosity of the SAPO-11 is preserved at 800 °C under steaming, which renders the material as an appropriate component of the FCC catalyst. Besides, the presence of mesopores provides isomerization active sites and accelerates the desorption of iso-paraffin. The mesoporous SAPO-11 showed a higher selectivity for iso-paraffin and the yield of iso-paraffin increased by 2%.
研究领域:
化学工程
·
石油加工
✓ 已验证
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2020
·
IF 4.006
Qiaozhen Liu,Yangyong Dai,Hanxue Hou,Wentao Wang,Xiuzhen Ding,Hui Zhang,Xiangyang Li,Haizhou Dong
The aim of this paper is to expand application scope of pea protein isolate by improving its emulsification . Pea protein isolate was ground for different time, and changes in its structure and emulsification properties were studied, and then revealed the influence mechanism of grinding on emulsification. It was found that the β-sheet of protein decreased from 39.92% to 31.47% after grinding for 20 min, and the pea protein was converted from a solid ball to a hollow ball. So the emulsion flocculation index decreased from 1.01% to 0.29% and the amount of protein adsorbed increased by 4.5%, which showed that the emulsion stability of the pea protein was significantly improved. Within a short grinding time (2.5–5 min), the viscosity of the emulsion was increased. Studies had shown that proper grinding treatment made pea protein isolate possess greater potential for an excellent emulsifier.
研究领域:
食品科学
·
蛋白质化学
✓ 已验证
产品关联
DOI
高影响因子
MINERALS ENGINEERING
·
2018
·
IF 2.707
Zhili Li,Feng Rao,Mario A. Corona-Arroyo,Arnoldo Bedolla-Jacuinde,Shaoxian Song
In this research, malachite particles with different roughness values were produced by grinding malachite sample together with quartz (mohs hardness: 7) and montmorillonite (mohs hardness: 1–2), respectively. Micro-flotation results showed that higher recovery was achieved by using malachite particles of higher surface roughness as feed. The contact angle measurements demonstrated that the contact angle of natural malachite surface decreased with the increase of its surface roughness, while the contact angle of malachite conditioned with 5 × 10 −5 mol/L sodium oleate increased with the increase of its surface roughness. It might be concluded that grinding media can influence minerals surface roughness, thus affecting the wettability of their surface and, consequently, the flotation performance.
研究领域:
矿物加工工程
·
材料科学
✓ 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）