METHOD OF PREPARING PROTEIN-BASED FOAMING AGENT Russian patent published in 2013 - IPC C04B38/10 C04B24/14 

Abstract RU 2495003 C1

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing a protein-based foaming agent and can be used in making cement-based porous articles. In the method of preparing a protein-based foaming agent by alkaline hydrolysis of a protein-containing product obtained by fermenting Candida yeast, neutralising the hydrolysate and adding a stabilising additive, the protein-containing product is obtained by adding to whey, which is a dairy waste, a medium which contains Candida utilis yeast in ratio of 20:1 at temperature of 27°C for 3 days; the obtained protein-containing product undergoes alkaline hydrolysis at temperature of 60°C for 120 minutes; the obtained hydrolysate is neutralised with 20% sulphuric acid solution to pH 7.5-8.5; a stabilising additive in form of 15% iron (II) sulphate solution is added to the neutralised hydrolysate which is cooled to room temperature, followed by dilution with water to the required foaming activity.

EFFECT: high foam expansion ratio and stability, low temperature and faster hydrolysis.

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RU 2 495 003 C1

Authors

Cherkasov Vasilij Dmitrievich

Buzulukov Viktor Ivanovich

Emel'Janov Aleksej Ivanovich

Kiselev Evgenij Viktorovich

Groshev Vasilij Mikhajlovich

Dates

2013-10-10Published

2012-03-30Filed