scholarly journals The Effect of Different Extraction Conditions on the Physical Properties, Conformation and Branching of Pectins Extracted from Cucumis melo Inodorus

2020 ◽  
Vol 1 (1) ◽  
pp. 3-20
Author(s):  
Danielle C. Reynolds ◽  
Laura J. Denman ◽  
Hana A. S. Binhamad ◽  
Gordon A. Morris
Keyword(s):  
Physical Properties ◽  
Cucumis Melo ◽  
Unit Length ◽  
Persistence Length ◽  
Processing Parameters ◽  
Regression Equations ◽  
Solution Conformation ◽  
Chemical Hydrolysis ◽  
Physico Chemical ◽  
Number Of Branches

The extraction of pectin involves the physico-chemical hydrolysis and solubilisation of pectic polymers from plant tissues under the influence of several processing parameters. In this study, an experimental design approach was used to examine the effects of extraction pH, time and temperature on the pectins extracted from Cucumis melo Inodorus. Knowledge of physical properties (intrinsic viscosity and molar mass), dilute solution conformation (persistence length and mass per unit length), together with chemical composition, was then used to propose a new method, which can estimate the length and number of branches on the pectin RG-I region. The results show that physical properties, conformation and the length and number of branches are sensitive to extraction conditions. The fitting of regression equations relating length and number of branches on the pectin RG-I region to extraction conditions can, therefore, lead to tailor-made pectins with specific properties for specific applications.

scholarly journals 7-Alkoxy-appended coumarin derivatives: synthesis, photo-physical properties, aggregation behaviours and current–voltage (I–V) characteristic studies on thin films

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10212-10223
Author(s):  
Abhijit Rudra Paul ◽  
Bapi Dey ◽  
Sudip Suklabaidya ◽  
Syed Arshad Hussain ◽  
Swapan Majumdar
Keyword(s):  
Thin Films ◽  
Carboxylic Acid ◽  
Physical Properties ◽  
Chemical Characteristics ◽  
Coumarin Derivatives ◽  
Design Synthesis ◽  
Electrical Switching ◽  
Physico Chemical ◽  
Current Voltage

In this article, we demonstrate the design, synthesis and physico-chemical characteristics, including electrical switching behaviours of long alkoxy-appended coumarin carboxylate/carboxylic acid in thin films.

scholarly journals Effect of Different Extrusion Processing Parameters on Physical Properties of Soy White Flakes and High Protein Distillers Dried Grains-Based Extruded Aquafeeds

2014 ◽  
Vol 3 (6) ◽  
pp. 107 ◽  
Author(s):  
Sushil K. Singh ◽  
K. Muthukumarappan
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Bulk Density ◽  
Water Solubility ◽  
Expansion Ratio ◽  
High Protein ◽  
Regression Equations ◽  
Process Variables ◽  
Distillers Dried Grains ◽  
Durability Index

<p>Nutritionally balanced ingredient blends for catla (<em>Catla catla</em>), belonging to the family Cyprinidae, were extruded using single screw extruder. The extrusion was carried out at five levels of soy white flakes content (21%, 29%, 40%, 52%, and 59% db), five levels of moisture content (15, 19, 25, 31, and 35% db) and five levels of barrel temperature (100, 110, 125, 140, and 150 ºC) using three different die nozzles (having L/D ratios 3.33, 5.83, and 7.25). Blends with net protein content of 32.5% contains soy white flakes, along with high protein distillers dried grains (HP-DDG), corn flour, corn gluten meal, fish meal, vitamin, and mineral mix. A central composite rotatable design (CCRD) and  response surface methodology (RSM) was used to investigate the significance of independent and interaction effects of the extrusion process variables on the extrudates physical properties namely pellet durability index, bulk density, water absorption and solubility indices and expansion ratio. Quadratic polynomial regression equations were developed to correlate the product responses and process variables as well as to obtain the response surfaces plots. The independent variables had significant (<em>P </em>&lt; 0.05) effects on physical properties of extrudates: (i) higher soy white flakes content increased the pellet durability index and water absorption index, but decreased the water solubility index, (ii) higher temperature decreased pellet durability index, bulk density and water solubility index, (iii) increased L/D ratio from 3.33 to 7.25 increased the pellet durability index, expansion ratio but decreased the bulk density of the extrudates.</p>

Forming and Utilizing Ferrochromium Production Waste

2020 ◽  
Vol 989 ◽  
pp. 492-497 ◽  
Author(s):  
Ivan D. Kascheev ◽  
Vladimir I. Zhuchkov ◽  
Oleg V. Zayakin
Keyword(s):  
Phase Composition ◽  
Physical Properties ◽  
Russian Federation ◽  
Production Waste ◽  
Technological Properties ◽  
High Carbon ◽  
Chemical Phase ◽  
Physico Chemical ◽  
Thermo Physical Properties ◽  
Ferrochromium Slag

Analysis of forming chromium-bearing ferroalloys production waste in Russian Federation was performed. Chemical, phase, fractional compositions and physico-chemical, technological properties of high-carbon ferrochromium slag were defined. Physico-chemical, thermo-mechanical and thermo-physical properties of fire-resistant materials, obtained from ferrochromium production slag and dust, were researched. It was shown that researched waste may be utilized as raw for fire-resistant materials production. Because of their chemical and phase composition, researched materials may be utilized for production of forsterite-spinel-based and forsterite-spinel-periclase-based fire-resistant materials. Technological properties of researched materials allow obtaining dense strength fire-resistant materials. Such fire-resistant materials are promising in the field of ferrous metallurgy (lining up furnaces, ladles and overflow launders in ferroalloys production).

scholarly journals Towards standard electrolytes for sodium-ion batteries: physical properties, ion solvation and ion-pairing in alkyl carbonate solvents

2020 ◽  
Vol 22 (39) ◽  
pp. 22768-22777
Author(s):  
Damien Monti ◽  
Erlendur Jónsson ◽  
Andrea Boschin ◽  
M. Rosa Palacín ◽  
Alexandre Ponrouch ◽  
...  
Keyword(s):  
Physical Properties ◽  
Molecular Characterization ◽  
Ion Pairing ◽  
Sodium Ion ◽  
Ion Solvation ◽  
Sodium Ion Batteries ◽  
Physico Chemical

In-depth physico-chemical and molecular characterization of EC:DMC Na+-electrolytes is provided while we observed several DMC conformers in the solvation shells.

Properties of injection moulded starch/synthetic polymer blends—I. Effect of processing parameters on physical properties

1996 ◽  
Vol 32 (8) ◽  
pp. 999-1010 ◽  
Author(s):  
D. Ramkumar ◽  
U.R. Vaidya ◽  
M. Bhattacharya ◽  
M. Hakkarainen ◽  
A.C. Albertsson ◽  
...  
Keyword(s):  
Physical Properties ◽  
Polymer Blends ◽  
Processing Parameters ◽  
Synthetic Polymer

Effects of Storage Conditions on Physical Properties of Cut Tobacco

2011 ◽  
Vol 347-353 ◽  
pp. 3041-3045
Author(s):  
Hua Liu ◽  
Rong He ◽  
Qi Zhong Tan ◽  
Zhi Huang ◽  
Yan Peng Qi ◽  
...  
Keyword(s):  
Physical Properties ◽  
Process Parameters ◽  
Storage Temperature ◽  
Design Method ◽  
Uniform Design ◽  
Storage Conditions ◽  
Regression Equations ◽  
Storage Process ◽  
Cut Tobacco ◽  
And Storage

In order to research effects of storage conditions on physical properties of cut tobacco, storage temperature, storage humidity and storage time were studied by uniform design method in this paper. Intuitive analysis results showed that the best store process parameters such as storage temperature, humidity and time were 26°C, 61% and 32h respectively. Stepwise regression analysis results indicated storage process parameters affected physical properties of cut tobacco such as moisture content, filling power, proportion of long strands and its conversion extremely. And the regression equations were significant effective. But there was no efficacious regression equation between proportion of small strands of cut tobacco and storage process parameters.

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