STUDY OF WATER ABSORPTION CAPABILITY OF SWELLABLE STARCH

Authors

DOI:

https://doi.org/10.31073/foodresources2021-16-19

Keywords:

starch granules; swelling; water absorption capacity

Abstract

Usually for the production of swellable starch extrusion treatment or drying on a drum roller dryer are used. The properties of swellable starch with a newly formed structure are evaluated mainly by the water absorption capacity in water under the action of temperature. The ability of swellable starch to thicken, stabilize, bind and enamel various food and non-food products depends on this indicator. The study of the index of water absorption capacity (WAC) of swellable starch obtained by our improved technology based on the use of convective dryer is an urgent and priority task. Research methodology. Control – extruded corn starch. Samples of swellable starch obtained by preparation of starch suspensions of different concentrations of 25, 30, 35 and 40 % were dried under conditions of two-stage convective drying, crushed and sieved. Research results. The obtained samples of swellable starch differ in the value of WAC. It is shown that the WAC of swellable starch affects not only the method of its production but also affects the concentration of starch suspension (SS) from which the samples of swellable starch were made. The obtained value of the approximation coefficient shows that the strongest bond (value - 1) has a sample of swellable starch obtained by convective drying from a concentration of SS 25 %. Conclusions. The WAC of extruded and swellable starch samples obtained by convective drying from different concentrations of SS from 25 to 40 % was investigated. It is shown that at a temperature of 20 °С the lowest value of WAC has swellable starch obtained from 25 % of the concentration of SS and the highest value in 35 % of the concentration of SS. Low strength of the newly formed structure is detected by samples at different temperatures, in particular, extruded starch and a sample obtained from SS 25 % at an aqueous solution temperature of 40-50 °C, a sample obtained from SS 30 % at 60 °C, a sample obtained from SS 35 % at temperature of 40 °C, the sample was obtained from SS 40 % at temperatures of 30 and 50 °C.

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References

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Published

2021-06-07

How to Cite

Khomichak, L., Kuznietsova, I., Liudmyla, & Yarmolyuk, M. (2021). STUDY OF WATER ABSORPTION CAPABILITY OF SWELLABLE STARCH. FOOD RESOURCES, 9(16), 205–211. https://doi.org/10.31073/foodresources2021-16-19

Issue

Vol. 9 No. 16 (2021): Продовольчі ресурси

Section

Технічні науки

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