ЭлБиб

Молочнохозяйственный вестник, №4 (16), IV кв. 2014

ТЕХНИЧЕСКИЕ НАУКИ

The study of water activity in aqueous solutions

of some sugars

Gnezdilova Anna Ivanovna, Doc. of Science (Technics), Professor of the Technological

Dairy Equipment Chair

e-mail:

FSBEI HPE the N.V. Vereshchagin Vologda State Dairy Farming Academy

Burmagina Tatyana Yur’evna, Postgraduate Student of the Technological Dairy

Equipment Chair

e-mail:

FSBEI HPE the N.V. Vereshchagin Vologda State Dairy Farming Academy

Abstract.

In the work water activity was studied in aqueous solutions of some

sugars: maltose, glucose, maltodextrins, fructose and sucrose. The concentration

dependence for activity and activity coefficient of water was obtained. Calculated values

of water activity were compared with experimental data. The results of calculation

and experiment have shown a satisfactory agreement indicating the adequacy of the

proposed model to the real process.

Keywords:

water activity; activity coefficient; sucrose; glucose; fructose; maltose;

maltodextrin.

Электронная Научная СельскоХозяйственная Библиотека