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|Title: ||Assessment of the biological activity of kefir grains by biospeckle laser technique|
|???metadata.dc.creator???: ||Guedes, J. D. S.|
Magalhães-Guedes, K. T.
Dias, D. R.
Schwan, R. F.
Braga Júnior, R. A.
|Publisher: ||Academic Journals|
|Issue Date: ||13-Jun-2014|
|Citation: ||GUEDES, J. D. S. et al. Assessment of the biological activity of kefir grains by biospeckle laser technique. African Journal of Microbiology Research, Washington, v. 8, n. 27, p. 2639-2642, July 2014.|
|Abstract: ||This work presents the biospeckle laser technique as a potential tool to analyse the kefir grains activity.
In the present work, the kefir grains biological activity was measured from quantitative measurements
by means of their speckle activity. The aim was to show that the biospeckle laser is a potential
methodology to assess kefir grains viability, monitoring the kefir grains during the beverage production.
The monitoring of the activity of the kefir is a key factor to guarantee the efficiency of the production of
beverages, however the routine ways it is done compromise its use in the online production. The kefir
grains were illuminated by a laser HeNe 17 mW 632 nm and analysed by the numerical biospeckle laser
method. The results presented the statistical separation of the kefir in distinct levels of activity as
expected. This can be an innovative technique to be used in the beverage industries for kefir grains
|Appears in Collections:||DCA - Artigos publicados em periódicos|
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