Controlled sulfation of mixed-linkage glucan by Response Surface Methodology for the development of biologically applicable polysaccharides

Solhi, Laleh; Sun, He Song; Daswani, Sailesh Haresh; Shojania, Shaheen; Springate, Christopher M. K.; Brumer, Harry

doi:10.1016/j.carbpol.2021.118275

Cited by 6 publications

(4 citation statements)

References 66 publications

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“…The results show that the optimum reaction conditions of sulfated okra pectin were as follows: CSA/Pyr ratio of 0.28 and reaction time of 3.05 h. Compared with unmodified okra pectin, sulfated okra pectin has significantly enhanced anticoagulant and antimicrobial properties. Solhi et al [36] found that the optimal DS and molecular weight (M W ) values of sulfated MLGs were 1.76 and 19 kDa, respectively by BBD of RSM. To further develop the potential biological activities of polysaccharides from Potentilla anserine L (PAPMAE), the CSA/Pyr method was employed for the sulfated modification of PAPMAE and optimized reaction process via BBD of RSM.…”

Section: Chlorosulfonic Acid Pyridine Methodsmentioning

confidence: 99%

“…Solhi et al. [ 36 ] found that the optimal DS and molecular weight ( M W ) values of sulfated MLGs were 1.76 and 19 kDa, respectively by BBD of RSM. To further develop the potential biological activities of polysaccharides from Potentilla anserine L (PAPMAE), the CSA/Pyr method was employed for the sulfated modification of PAPMAE and optimized reaction process via BBD of RSM.…”

Section: Methods Of Sulfated Modification Of Polysaccharidesmentioning

confidence: 99%

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Modification, Structural Characterizations, and Biological Activities of Sulfated Polysaccharides: A Review

Hao,

Dai,

Tan

et al. 2023

Starch Stärke

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Polysaccharides are another important class of bioactive macromolecules in organisms, in addition to proteins and nucleic acids. Numerous studies have confirmed that polysaccharides have various biological activities, including anti‐inflammatory, antiviral, antioxidant, immunomodulatory, anticancer, and other activities, which have attracted the attention of researchers in the biomedical field. In the past decade, increasing researches have found that sulfation modification can improve many physicochemical properties of polysaccharides, significantly enhance their original biological activities, and even generate new activity. Hence, sulfated polysaccharides have attracted more and more attention. A systematic review of the latest research progress and future development prospects of sulfated polysaccharides is very essential to better understand them. Hence, the study has systematically summarized current knowledge about synthesis, structural characteristics, biological activities, and potential molecular mechanisms of sulfated polysaccharides. This review provides some valuable insights and important guidance for the further study of sulfated polysaccharides.

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Section: Chlorosulfonic Acid Pyridine Methodsmentioning

confidence: 99%

Section: Methods Of Sulfated Modification Of Polysaccharidesmentioning

confidence: 99%

Modification, Structural Characterizations, and Biological Activities of Sulfated Polysaccharides: A Review

Hao,

Dai,

Tan

et al. 2023

Starch Stärke

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“…If the equation is not significantly simulated, it can fit the data well. The "lack of fit" of 6.38 for F-value and 0.0527 for p-value implied that it is insignificant relative to the pure error, which shows that the equation can fit the data well [36]. In the case of p-values, X 1 , X 2 , X 3 , X 1×2 , X 1 X 3 , X 2 X 3 , X 1 2 , X 2 2 , and X 3 2 are the influence of each factor, the quadratic of each factor and the interaction factor when they were less than 0.05, implying that the correlation factors were significant [33].…”

Section: Process Optimizationmentioning

confidence: 99%

Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System

Meng¹,

Liu²,

Wang³

et al. 2021

Water

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In this study, an ultrasound Fenton-like sponge iron system was used to enhance the degradation efficiency for chloramphenicol (CAP). Three single-factor experiments of reaction pH, hydrogen peroxide (H2O2) concentration, and sponge iron (Fe) concentration were used to explore the impact on CAP degradation efficiency. The response surface method revealed the interactions between various factors. The degradation efficiency for CAP was as high as 99.97% at pH = 3, 3.19 mmol/L H2O2, and a sponge iron concentration of 2.26 g/L. The degradation rate for CAP was significantly reduced upon the addition of some inorganic salts, mainly due to the quenching of OH radicals. Gram-negative (G(−)) Escherichia coli and Gram-positive (G(+)) Staphylococcus aureus were used to evaluate the changes in the antibacterial activity of CAP. Finally, gas chromatography/mass spectrometry (GC-MS) was used to identify the degradation products and the degradation path for the products was proposed based on the detected products.

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“…From the single-factor test results, the inclination angle of the bottom surface of the conical seed box (α), the half angle of the top conical of the conical seed box (θ) and the length parameter range of the drainage plate in the conical seed box (l) can be seen to have a significant influence on the test indices for evaluating the conical-seed-box seed-metering performance: CD and CV. To explore the law of the influence of the above three factors on the seed-metering performance of the seed box and obtain the best combination of structural parameters for the seed box, a three-factor and three-level orthogonal simulation experiment was carried out with CD and CV as the experimental evaluation index [35,36]. According to the analysis results of single-factor tests, α was set to 41 • , 45 • and 49 • ; θ was set to 24 • , 27 • and 30 • ; and l was set to 400 mm, 450 mm and 500 mm.…”

Section: Experimental Designmentioning

confidence: 99%

Study of Patterns of Movement of Groups of Seed Potatoes in Conical Seed Box Based on the Dem-Model of the Process

Cai

Chen

et al. 2022

Processes

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To reduce the missing rate caused by the arching phenomenon of seed potatoes in the traditional seed boxes of cup-belt potato planters, a conical-shaped seed box comprising a seed-metering box and a reseeding box connected together was proposed. The method in this paper combined the discrete-element-analysis method and response-surface method and took the movement of the seed-potato group in the seed box as the research object. First, by analyzing the force and speed of seed potatoes, the main structural parameters affecting the seed-box seed-metering performance were determined, and the indices for evaluating the seed-box seed-metering performance were established. Additionally, a single-factor simulation test and orthogonal test were carried out for the main structural parameters of the seed box. Using the optimized structural parameters of the seed box, a trial conical seed box was produced, and bench-verification tests were carried out. The results showed that the multiple rate, missing rate and coefficient of the variation of the plant distance for the conical seed box were reduced by 4.76%, 4.0% and 9.18%, respectively. The research results have practical significance as guidance for improving the sowing performance of cup-belt potato planters. At the same time, the research results have reference value for solving the arching problem for granular materials in the box.

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Controlled sulfation of mixed-linkage glucan by Response Surface Methodology for the development of biologically applicable polysaccharides

Cited by 6 publications

References 66 publications

Modification, Structural Characterizations, and Biological Activities of Sulfated Polysaccharides: A Review

Modification, Structural Characterizations, and Biological Activities of Sulfated Polysaccharides: A Review

Synergistic Degradation of Chloramphenicol by an Ultrasound-Enhanced Fenton-like Sponge Iron System

Study of Patterns of Movement of Groups of Seed Potatoes in Conical Seed Box Based on the Dem-Model of the Process

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