Rheological behaviors and microstructure of Oviductus Ranae hydrogels

2012 ◽  
Vol 21 (2) ◽  
pp. 467-474 ◽  
Author(s):  
Qing Liang ◽  
Shouqin Zhang ◽  
Jinsong Zhang
Keyword(s):  
Rheological Behaviors ◽  
Oviductus Ranae

scholarly journals Exploitation of HPLC Analytical Method for Simultaneous Determination of Six Principal Unsaturated Fatty Acids in Oviductus Ranae Based on Quantitative Analysis of Multi-Components by Single-Marker (QAMS)

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 479
Author(s):  
Shihan Wang ◽  
Yuanshuai Gan ◽  
Hong Kan ◽  
Xinxin Mao ◽  
Yongsheng Wang
Keyword(s):  
Fatty Acids ◽  
Quantitative Analysis ◽  
Unsaturated Fatty Acids ◽  
Internal Standard ◽  
Active Components ◽  
Reliable Determination ◽  
External Standard Method ◽  
Single Marker ◽  
Oviductus Ranae

As one of the featured products in northeast China, Oviductus Ranae has been widely used as a nutritious food, which contains a variety of bioactive unsaturated fatty acids (UFAs). It is necessary to establish a scientific and reliable determination method of UFA contents in Oviductus Ranae. In this work, six principal UFAs in Oviductus Ranae, namely eicosapentaenoic acid (EPA), linolenic acid (ALA), docosahexaenoic acid (DHA), arachidonic acid (ARA), linoleic acid (LA) and oleic acid (OA), were identified using UPLC-MS/MS. The UFAs identified in Oviductus Ranae were further separated based on the optimized RP-HPLC conditions. Quantitative analysis of multi-components by single-marker (QAMS) method was implemented in content determination of EPA, ALA, DHA, ARA and OA, where LA was used as the internal standard. The experiments based on Taguchi design verified the robustness of the QAMS method on different HPLC instruments and chromatographic columns. The QAMS and external standard method (ESM) were used to calculate the UFA content of 15 batches of Oviductus Ranae samples from different regions. The relative error (r < 0.73%) and cosine coefficient showed that the two methods obtained similar contents, and the method validations met the requirements. The results showed that QAMS can comprehensively and effectively control the quality of UFAs in Oviductus Ranae which provides new ideas and solutions for studying the active components in Oviductus Ranae.

Structural characterization using SAXS and rheological behaviors of pluronic F127 and methylcellulose blends

2020 ◽  
Author(s):  
Onpreeya Boonrat ◽  
Vimon Tantishaiyakul ◽  
Namon Hirun ◽  
Supagorn Rugmai ◽  
Siriwat Soontaranon
Keyword(s):  
Structural Characterization ◽  
Pluronic F127 ◽  
Rheological Behaviors

Flow Behaviors of High Acyl Gellan Aqueous Solutions as Affected by Temperature, and Calcium and Gellan Concentrations

2008 ◽  
Vol 4 (5) ◽  
Author(s):  
Yiqun Huang ◽  
Pawan Singh Takhar ◽  
Juming Tang ◽  
Barry G Swanson
Keyword(s):  
Shear Rate ◽  
Aqueous Solutions ◽  
Apparent Viscosity ◽  
Flow Resistance ◽  
Effect Of Temperature ◽  
Temperature Changes ◽  
Influence Of Temperature ◽  
Rheological Behaviors ◽  
Low Concentrations ◽  
Influence Of Temperature On

Rheological behaviors of high acyl (HA) gellan are not well understood partially because of its relatively late commercialization compared to low acyl gellan. The objective of this study was to investigate the effect of temperature (5-30 °C), calcium (0, 1 and 10 mM) and gellan concentrations (0.0044-0.1000% w/v) on the flow behaviors of high acyl gellan aqueous solutions using rheological tests. Gellan solutions with 0 or 1 mM added Ca++ exhibited shear thinning behavior at gellan concentrations above 0.0125%. The influence of temperature on apparent viscosity (shear rate, 100 s-1) of gellan solutions can be described with an Arrhenius relationship. The apparent viscosity of gellan solution at low concentrations was more sensitive to temperature changes. The addition of Ca++ led to a decrease in flow resistance for a dilute gellan solution (<0.0125%), but an increased resistance for a relatively concentrated gellan solution (>0.0125%).

Experimental Study Oviductus ranae for the Change of α-SMA and TGF-β in Hepatic Fibrosis Rat Liver

2014 ◽  
Vol 912-914 ◽  
pp. 1940-1943
Author(s):  
Yan Li ◽  
Xiao Ou Li ◽  
Feng Hao ◽  
Lei Zhang ◽  
Lei Liu ◽  
...  
Keyword(s):  
Liver Fibrosis ◽  
Hepatic Fibrosis ◽  
Rat Liver ◽  
Liver Tissue ◽  
Female Rats ◽  
Control Group ◽  
Group Model ◽  
Model Group ◽  
Model Control ◽  
Oviductus Ranae

To evaluate the control effect of Oviductus ranae on liver fibrosis in rats, and the change of TGF-β and α-SMA in liver of. To explore the mechanism of Oviductus ranae decoction on liver fibrosis. Methods Wistar female rats were randomly divided into a blank control group, model control group, colchicines group, Oviductus ranae group. Using the CCl4composite approach to make the rat modle. The course of treat-mart was 12 weeks.After treatment,All the rats was killed,and the materials and blood was taken,and to detect biochemical test of liver function after eight weeks. Investigating the variation of liver histology. Meanwhile detecting protein expression of TGF-β and α-SMA and by immunehistochemical method.Result The general condition of rats in all treatment groups are worse than the blank group,but better than the model group. And the rats in the model group were all occurred in liver fibrosis,and liver fibrosis is the most serious.In a normal rat liver tissue of TGF-β and α-SMA were significantly lower in model group and each treatment group, and there were significant differences, and the TGF-β and α-SMA in expression of liver tissue in model rats of TGF-β and α-SMA the highest. Conclusion: Oviductus ranae can effectively improve liver fibrosis rats induced by CC14liver function.Oviductus ranae can reduce the expression of TGF-β1in liver tissue of hepatic fibrosis rats induced by CCl4in. This may be one of the mechanisms of Oviductus ranae in prevention and treatment of liver fibrosis. Even though both increased expression of TGF-β and α-SMA expression, is able to determine TGF-β and α-SMA for the intervention of liver TGF-β signal transduction pathway in liver fibrosis.

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