scholarly journals The Effect of Alkali Metal, Magnesium, and Calcium Ions on the Motility of Fowl Spermatozoa

1958 ◽  
Vol 11 (4) ◽  
pp. 589 ◽  
Author(s):  
RG Wales ◽  
IG White
Keyword(s):  
Sodium Chloride ◽  
Alkali Metal ◽  
Calcium Ions ◽  
Phosphate Buffer ◽  
Sodium Phosphate ◽  
Cent Glucose ◽  
Sodium Phosphate Buffer ◽  
Cent Sodium

Potassium (5-45mM), magnesium (1�5-IS�5mM), and calcium (O�3-2�7mM) chlQrides each increase the viability of fowl spermatozoa in vitro when added to a diluent composed of O� 02M sodium phosphate buffer, 0�5 per cent. sodium chloride, and I� 5 per cent. glucose.

Effects of sodium phosphate buffer on horseradish peroxidase thermal stability

2008 ◽  
Vol 93 (2) ◽  
pp. 569-574 ◽  
Author(s):  
L. Haifeng ◽  
L. Yuwen ◽  
C. Xiaomin ◽  
W. Zhiyong ◽  
W. Cunxin
Keyword(s):  
Thermal Stability ◽  
Horseradish Peroxidase ◽  
Phosphate Buffer ◽  
Sodium Phosphate ◽  
Sodium Phosphate Buffer

Recovery of milk fat globule membrane (MFGM) from buttermilk: effect of Ca-binding salts

2019 ◽  
Vol 86 (3) ◽  
pp. 374-376 ◽  
Author(s):  
Vitaly L. Spitsberg ◽  
Liza Ivanov ◽  
Vladimir Shritz
Keyword(s):  
Phosphate Buffer ◽  
Milk Fat ◽  
Sodium Phosphate ◽  
Milk Fat Globule Membrane ◽  
Peripheral Protein ◽  
Sodium Phosphate Buffer ◽  
Milk Fat Globule ◽  
Fat Globule ◽  
First Time ◽  
Phosphate Groups

AbstractIn this Research Communication we present a study of the effect of Ca-binding salts on the recovery of milk fat globule membrane (MFGM) from buttermilk. Sodium phosphate buffer was used for the purpose of MFGM recovery from buttermilk for the first time and we showed that 0.1 M buffer at pH 7.2 was the most effective for the recovery of MFGM. The fact of high efficacy of sodium phosphate buffer in recovery of MFGM from buttermilk allowed us to suggest that MFGM in buttermilk is present in association with casein through Ca- bridges formed between phospholipids of MFGM and phosphate groups of casein, primarily with k-casein as the peripheral protein of casein micelles.

scholarly journals Improvement of Starch Digestion Usingα-Amylase Entrapped in Pectin-Polyvinyl Alcohol Blend

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Maurício Cruz ◽  
Kátia Fernandes ◽  
Cristine Cysneiros ◽  
Reginaldo Nassar ◽  
Samantha Caramori
Keyword(s):  
Polyvinyl Alcohol ◽  
Phosphate Buffer ◽  
Immobilized Enzyme ◽  
Biotechnological Applications ◽  
Solution Ph ◽  
Sodium Phosphate Buffer ◽  
Rate Of Dissolution ◽  
Water Ph ◽  
Repeated Use

Polyvinyl alcohol (PVA) and pectin blends were used to entrapα-amylase (Termamyl) using glutaraldehyde as a cross-linker. The effect of glutaraldehyde concentration (0.25, 0.5, 0.75, 1.0, and 1.25%) on the activity of the immobilized enzyme and rate of enzyme released was tested during a 24 h period. Characteristics of the material, such as scanning electron microscopy (SEM), tensile strength (TS), elongation, and rate of dissolution in water (pH 5.7), ruminal buffering solution (pH 7.0), and reactor containing 0.1 mol L−1sodium phosphate buffer (pH 6.5), were also analyzed. SEM results showed that the surfaces of the pectin/PVA/amylase films were highly irregular and rough. TS values increased as a function of glutaraldehyde concentration, whereas percentage of elongation (%E) decreased. Pectin/PVA/amylase films presented similar values of solubility in the tested solvents. The material obtained with 0.25% glutaraldehyde performed best with repeated use (active for 24 h), in a phosphate buffer reactor. By contrast, the material obtained with 1.25% glutaraldehyde presented higher performance duringin vitrotesting using an artificial rumen. The results suggest that pectin/PVA/amylase is a highly promising material for biotechnological applications.

scholarly journals THE EFFECT OF SODIUM CHLORIDE ON THE CHEMICAL CHANGES IN THE BLOOD OF THE DOG AFTER OBSTRUCTION OF THE CARDIAC END OF THE STOMACH

1928 ◽  
Vol 48 (5) ◽  
pp. 627-638 ◽  
Author(s):  
Russell L. Haden ◽  
Thomas G. Orr
Keyword(s):  
Sodium Chloride ◽  
Salt Solution ◽  
Chloride Solution ◽  
Average Duration ◽  
Similar Amount ◽  
Marked Rise ◽  
Protein Nitrogen ◽  
Cent Glucose ◽  
Cent Sodium ◽  
Methods Of Treatment

A study is reported of the effect of different methods of treatment on the toxemia of cardiac obstruction. The average duration of life of untreated dogs is 3 days. Three dogs treated with 1 per cent salt solution subcutaneously lived 32, 36, and 45 days respectively without developing a toxemia. 2 per cent glucose similarly given, does not alter the course of the toxemia. Concentrated salt solution in small quantities given directly into the jejunum prevents the marked rise in non-protein nitrogen but does not materially prolong life. Release of the obstruction does not change the course of the toxemia in untreated animals. The subcutaneous injection of 1 per cent sodium chloride solution after release of the obstruction causes a rapid return of the blood to normal and allows the animal to recover. A similar amount of fluid given as 2 per cent glucose does not alter the course of the toxemia after release of the obstruction.

scholarly journals Large-scale purification of hepatitis B surface antigen

1976 ◽  
Vol 3 (6) ◽  
pp. 626-631
Author(s):  
J Vnek ◽  
A M Prince
Keyword(s):  
Polyethylene Glycol ◽  
Hepatitis B ◽  
Surface Antigen ◽  
Phosphate Buffer ◽  
Sodium Phosphate ◽  
Large Scale ◽  
Hepatitis B Surface Antigen ◽  
Sodium Phosphate Buffer ◽  
Subsequent Elution ◽  
Polyethylene Glycol Precipitation

Hepatitis B surface antigen was concentrated and purified from plasma by two simple steps of purification. In the first step the antigen was purified 24-fold by polyethylene glycol precipitation. An additional 10-fold purification was achieved by batchwise adsorption to hydroxylapatite and subsequent elution with 0.02 M sodium phosphate buffer.

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