JOURNAL OF CEREAL SCIENCE
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2013
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IF 2.088
Shuang Meng,Ying Ma,Da-Wen Sun,Lifeng Wang,Tianyi Liu
Aqueous mixtures of defatted corn starch and palmitic acid were heated and high pressure homogenized in order to form amylose inclusion complexes. The effects of homogenization pressure (0–120 MPa) and palmitic acid concentration (0.5–8% based on starch content) on starch-palmitic acid complex formation as well as on complex index, X-ray diffraction, thermal properties, viscosity and particle size were investigated. Complex index increased with an increase in the amount of palmitic acid and homogenization pressure, and reached a maximum value (about 60%) when the fatty acid content was 4% and the homogenization pressure was 100 MPa. X-ray diffraction patterns indicated the formation of V-helical complexes between starch and palmitic acid. This technology could prospectively be used in prepared starch-lipid complexes.
研究领域:
食品科学
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生物化学
✓ 已验证
产品关联
DOI
高影响因子
DRYING TECHNOLOGY
·
2023
·
IF 3.3
Yanchao Li,Haosen Zhang,Tianwei Zhang,Tao Liu
This study aimed to produce nanoparticles with reduced crystallinity by using a combination method. The effect of solid-state transition (different drying processes) coupled with particle size reduction (homogenization) on drug dissolution was systematically investigated. Meloxicam, indomethacin and naproxen with different X-ray diffraction crystal intensity (relative high, medium and low) were selected as models. All drugs were first processed with and without polyvinylpyrrolidone (PVP) to obtain solid dispersions and then high pressure homogenization was used to produce nanosuspensions. Changes of particle morphology might be an important factor to improve the nanosizing efficiency. The smallest particle size (188 nm) could be obtained by using freeze-dried naproxen coupled with PVP after 20 homogenization cycles. Dissolution rates of processed indomethacin and meloxicam without PVP were found similar to their raw drugs. However, significant dissolution improvements were found after homogenization (higher than nanocrystals). Dissolution values of three drug nanoparticle achieved by using PVP dispersions were all higher than 83%. For naproxen, although nanosized solid dispersion possessed the smallest size and amorphous state, its dissolution curve was comparable to the larger sized nanocrystals. It was inferred that the relatively low crystal intensity of the initial compound could be the reason. Nanosuspensions of indomethacin and meloxicam prepared by using the two-step method showed optimized dissolution compared to their nanocrystals and amorphous solid dispersions.
研究领域:
药剂学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2011
·Vol. 123
·期 6
·3255-3260
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IF 1.24
Hongbo Liu,Shaoguo Wen,Jihu Wang,Yu Zhu
Composite particles of carbon black-polystyrene with controllable size were successfully prepared using high-speed homogenization-assisted suspension polymerization. The carbon black particles were modified by oleic acid to make it more hydrophobic and more compatible with polymers before the encapsulation process. The effects of homogenization speed, homogenization time, agitation speed, pigment concentration, and stabilizer concentration on the properties of complex spheres were investigated in detail. The results of orthogonal experiments proved that the stabilizer concentration plays the most important role in controlling the size of complex particles. The particles were also characterized by FTIR and SEM. SEM photographs proved that the complex particles had good spherical forms with smooth surfaces. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
研究领域:
材料科学
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高分子化学
✓ 已验证
DOI
高影响因子
MINERALS ENGINEERING
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2024
·
IF 4.9
Haiping Zhao,Zhiwei Liu,Jingzhi Liu,Xinxing Liang,Xueping Hu,Wenquan Duan,Junsheng Ma,Liqiang Gao,Zifeng Yu,Renman Ruan
This work attempts to clarify the reason for low gold recovery in Carlin-type gold ores flotation by revealing the correlation of interactions between pyrite and dolomite during the oxidation process with flotation performance. In this paper, the sulfur oxidation rate determined by Ion chromatography (IC) was adopted to evaluate the oxidation degrees of the mixed pyrite and dolomite systems. Flotation tests observed that the difference in the floating rate of pyrite and dolomite gradually decreases with the accumulation of oxidation degrees. The normalized Fourier Transform Infrared Spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) identified the homogenization effect that occurs between pyrite and dolomite surface during the oxidation process can change the affinity of the mineral surface towards the xanthate collector. Focused beam reflectance measurement (FBRM), Particle video microscope (PVM), and Extended Derjaguin–Landau–Verwey–Overbeek (E-DLVO) calculation show that the homogenization effect changes the interaction force between oxidized pyrite and dolomite, and caused the adhesion between minerals, ultimately, deteriorated the separation performance of Carlin-type gold deposits. This study can give a more detailed explanation of the reason for poor selectivity in the Carlin-type gold ores flotation.
研究领域:
矿物学
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冶金工程
✓ 已验证
产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2021
·
IF 4.952
Yisha Xie,Xiliang Yu,Shibiao Wei,Jianan Zheng,Sangeeta Prakash,Xiuping Dong
Cod cut offs, as a by-product of cod processing, is often discarded and wasted. A cod protein gel (CP-gel) was produced from homogenized steamed cod cut offs to turn the otherwise “waste” into treasure. The effects of homogenizing conditions on the physicochemical properties of the CP-gel were investigated by assessing the gel strength, water holding capacity (WHC), rheological properties and microstructure, combined with the visual appearance. After homogenization at 80 MPa with 15 passes, the particle size was reduced to 4 μm and resulted in a gel strength of 0.63 N. The WHC of cod protein gel increased by 41% as compared to the un-homogenized sample. The secondary structures of the microfibrillar proteins changed as evidenced by the increased α-helix content by 3% via homogenization. The reduced particle size allowed particle-particle interactions and promoted protein cross-linking via both hydrophobic interaction and hydrogen bond formation. A relatively smooth and honeycombed network structure was formed with improved gel quality and physical properties. CP-gel provides a potential to utilize cod cut offs to produce value-added products.
研究领域:
食品科学
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蛋白质化学
✓ 已验证
DOI
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Jinzhe Li,QiuWan Jiang,Ruyi Zhang,Shiyi Guo,Zhanmei Jiang,Juncai Hou
Due to uneven distribution amino acid residues of α-lactalbumin (αLA) at oil-water interface, some measurement should be adopted to improve its interfacial behavior and emulsion stability. Therefore, this study focused on the mechanism of synergy of ultrasound and high pressure homogenization on the emulsion stability and interfacial behaviors of α-lactalbumin with mogroside V (MGV). Four treatments were adopted: ultrasound (US), high pressure homogenization (HPH) and combined treatment (US-HPH and HPH-US). Primarily, emulsion stability of αLA/MGV was analyzed. US-HPH or HPH-US exhibited better emulsion stability than US or HPH. Especially, HPH-US-αLA/MGV emulsion was not stratified at the given time (45 d), which was the most stable emulsion. Moreover, the micromorphology of emulsion showed that MGV and UH/HPH treatment suppressed the aggregation of αLA emulsion droplet. In addition, interfacial adsorption mass and viscoelasticity of physical treated αLA was improved with MGV in the order of HPH-US > US-HPH > US > HPH, specifically, frequency shift (ΔF) and dissipation shift (ΔD) of HPH-US-αLA/MGV was 42.2% and 32.5% higher than that without MGV. This finding may provide a potential approach for obtaining natural and high-efficient protein-based emulsifier in food industry.
研究领域:
食品科学
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界面化学
·
蛋白质工程
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
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2017
·
IF 4.811
Guoguang Wei,Alei Zhang,Kequan Chen,Pingkai Ouyang
This study presents an efficient pretreatment of crayfish shell using high pressure homogenization that enables N -acetyl- d -glucosamine (GlcNAc) production by chitinase. Firstly, the chitinase from Serratia proteamaculans NJ303 was screened for its ability to degrade crayfish shell and produce GlcNAc as the sole product. Secondly, high pressure homogenization, which caused the crayfish shell to adopt a fluffy netted structure that was characterized by Scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR), X-ray diffraction (XRD), was evaluated as the best pretreatment method. In addition, the optimal conditions of high pressure homogenization of crayfish shell were determined to be five cycles at a pressure of 400 bar, which achieved a yield of 3.9 g/L of GlcNAc from 25 g/L of crayfish shell in a batch enzymatic reaction over 1.5 h. The results showed high pressure homogenization might be an efficient method for direct utilization of crayfish shell for enzymatic production of GlcNAc.
研究领域:
生物化学
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废弃物利用
·
酶工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD ENGINEERING
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2025
·
IF 5.8
Xuanyi Zhang,Xiaojun Lin,Jingwen Wang,Xiaoyu Luo,Baojun Xu
This study focused on enhancing the stability and bioaccessibility of pterostilbene (PTS) by encapsulating it with hydroxypropyl-β-cyclodextrin (HP-β-CD) using high-pressure homogenization (HPH) and pH-shift methods. The encapsulation process was performed at pressures of 50, 100, and 150 MPa along with three different treatments, achieving a maximum encapsulation efficiency of 94.34% and a loading capacity of 14.82% at 150 MPa. The SEM, XRD, and FTIR analyses confirmed encapsulation by revealing significant morphological changes, crystal structure modifications, and host-guest interactions. PTS-HP-β-CD complexes retained 82.22% of PTS at 4°C (28 days) and 76% under UVB (120 min), compared to 56.03% and 21% for free PTS, respectively. Additionally, these complexes exhibited enhanced DPPH scavenging rates (44.95% at 0.02 mg/mL), nearly twice that of free PTS. In the release studies, the complexes’ release behavior aligned with the Higuchi model. Encapsulated PTS revealed lower digestion rates in in-vitro gastric (32.24% vs. 49.88%) and intestinal phases (63.98% vs. 91.01%). Additionally, there was no observable toxicity for PTS-HP-β-CD to human epidermal keratinocytes, supporting its potential use in cosmetics, food, and pharmaceuticals. These results demonstrated that HPH combined with pH-shift methods effectively improved the stability and bioaccessibility of PTS, offering a promising strategy for its formulation.
研究领域:
食品科学
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药剂学
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生物学
✓ 已验证
产品关联
DOI
高影响因子
Innovative Food Science & Emerging Technologies
·
2025
·
IF 6.8
Shikang Tang,Naiwen Xing,Yidian Li,Xuejiao Wang,Chaofan Guo,Xiaosong Hu,Junjie Yi
Lemon emulsion, enriched with vitamin C, organic acids, and dietary fiber, is widely utilized in food applications due to its refreshing flavor and associated health benefits. However, traditional pasteurization (PT) techniques commonly employed to prolong shelf life often lead to nutrient degradation and sensory deterioration. This study investigates the impact of a high-pressure homogenization system integrating piston-gap and microfluidic technologies (IPM-HS) on the quality and stability of lemon emulsions. Emulsions composed of fresh lemon juice, olive oil, and Tween 80 were treated at 200, 300, and 400 MPa. The IPM-HS treatment significantly enhanced turbidity (up to 1.5-fold), reduced particle size below 500 nm, and achieved effective microbial reduction, with no viable microorganisms detected at any pressure level. In addition, EAI and ESI values increased significantly with pressure, indicating enhanced emulsifying capacity and long-term physical stability. Zeta potential measurements showed more negative values after IPM-HS treatment, suggesting improved electrostatic repulsion and greater emulsion stability. The L* value increased markedly from 62.39 to 89.81 at 400 MPa, indicating a shift in color from light yellow to milky white. Emulsions treated with IPM-HS exhibited stable nanostructures with no phase separation during 30-day storage, in contrast to untreated and thermally treated controls. Moreover, total phenolic content increased from 0.49 to 0.58 mg GAE/g ( p < 0.05), and antioxidant activity was well preserved. Flavor analysis using electronic tongue and nose revealed minimal deviation from the control group. Overall, IPM-HS markedly improves emulsion stability, physicochemical quality, and nutritional retention while maintaining sensory attributes, underscoring its potential as a promising non-thermal processing technology for emulsion-based product development.
研究领域:
食品科学
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生物技术
·
营养学
✓ 已验证
产品关联
DOI
高影响因子
Chemical Engineering and Processing-Process Intensification
·
2024
·
IF 3.8
Shuainan Zhao,Zishan Zeng,Chaoqun Yao,Mei Yang,Guangwen Chen
The study first investigated the effects of individual ultrasound and high-speed shearing on emulsification, both obtaining emulsions with average sizes of approximately 1 μm. Subsequently, a combined strategy to utilize shearing instrument producing coarse emulsion for ultrasonic microreactor was proposed. Immiscible liquids were drawn into the stirring chamber by rotating paddles, where they underwent strong shearing and thorough mixing. The pre-mixed liquids were introduced into microchannel and subjected to further processing by oscillating cavitation bubbles. Through optimization of experimental parameters such as residence time and recycle ratio, the average emulsion size was significantly reduced to 522 nm. Finally, a dual-frequency strategy using ultrasound frequencies of 20 and 40 kHz consecutively further reduced the emulsion size to 307 nm. In comparison with conventional sonoreactors and high-pressure homogenizers, this dual-frequency approach demonstrated superior emulsification performance with less surfactant addition and energy input, indicating its high applicability on continuous emulsification process with proper design and optimization.
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
LANGMUIR
·
2022
·
IF 4.331
Zhihui Chen,Hua-Neng Xu,Xiao-Kun Ouyang
We develop a route to prepare two types of cellulose nanocrystals (CNCs, CNC1 and CNC2) from a unique biomass resource, the fruit shell of Camellia oleifera Abel (SCOA), by integrating sulfuric acid hydrolysis and high-pressure homogenization and examine the effects of hydrolysis time on characteristics of the CNCs during the process. The CNCs exhibit different evolutions in size, morphology, surface charge, and crystallinity with increasing hydrolysis time. While both the CNCs have high crystallinity, CNC1 is of rod-like character with a relatively low aspect ratio, and CNC2 exhibits a hairy appearance with a high aspect ratio. We highlight that controlled acid hydrolysis contributes to the formation of weak spots with an increased susceptibility for homogenizing cellulosic solid residues into hairy CNCs. This is a good step toward tailoring CNC properties in a conventional and scalable approach to maximize their potential applications.
研究领域:
材料科学
·
生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Changxiu Chen,Panyi Xi,Shanbei Zhang,Liming Zhang,Yaning Sun,Jiuyong Yao,Kuanjun Fang,Yijun Jiang
TEMPO oxidized nano-fibrillated cellulose (TONFC) has been used in different applications including biomedical, packing materials, paints and cosmetics because of its higher transparency, mechanical properties and better biocompatibility. However, pulping is always required to remove lignin and hemicellulose , and high-energy homogenization is required to defibrillate cellulose bundle into filament. Therefore, it is desirable to find a novel way to get TONFC with high carboxyl content without intensive mechanical disintegration. In this work, nanocellulose (TOHOLO) with higher carboxyl groups (2.2 ± 0.2 mmol/g) and smaller size (length = 400–685 nm and diameter = 5.9 nm) was prepared by a two-step strategy without intensive mechanical homogenization. In addition to the advantages in terms of diameter and carboxyl groups, TOHOLO showed better transparency and re-dispersibility as well as higher mechanical properties (122.8 MPa) compared to previous reports. Furthermore, for high carboxyl group and dispersibility, the TOHOLO can be used as a reinforcing filler to fabricate nanocomposites. The reinforced PVA fibers show a tensile strength of 484.4 MPa, which is about 170 % higher than comparison samples (PVA/TOCN-M, 291.9 MPa).
研究领域:
材料科学
·
生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）