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| Autore principale: | |
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional de Colombia
2016
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=49648868008 https://www.redalyc.org/journal/496/49648868008/ https://www.redalyc.org/journal/496/49648868008/html/ https://www.redalyc.org/journal/496/49648868008/49648868008.epub https://www.redalyc.org/journal/496/49648868008/movil |
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Sommario:
- Effect of amplitude and pulse in low frequency ultrasound on oil/water emulsions María Alejandra Cabrera-Trujillo Luz Indira Sotelo-Díaz María Ximena Quintanilla-Carvajal Ingeniería pulse emulsion amplitude low frequency Ultrasound probe The application of ultrasound with in advanced or emerging technologies requires selecting parameters that depend on the target application. This study evaluated pulse and amplitude parameters of oil/water emulsions (20:80% w/w) using low frequency probe ultrasound equipment (20 KHz). A categorical multilevel factorial design was used with Design Expert® in which the following pulse treatments were defined : continuous , pulse 20:20 (on: off) and pulse 30:30 (on: off), for five minutes . Six amplitudes (30, 36, 42, 48, 54 and 60 μm) were evaluated for the following response variables: separation of phases in emulsion, temperature and accumulated power. The results showed that the best condition to obtain an emulsion with less phase separation was the 20:20 (on: off) treatment with an amplitude of 42 μm . The ultrasound probe application parameters that were obtained will enable the design of stable products from low -fat emulsions . 2016 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49648868008 https://www.redalyc.org/journal/496/49648868008/ https://www.redalyc.org/journal/496/49648868008/html/ https://www.redalyc.org/journal/496/49648868008/49648868008.epub https://www.redalyc.org/journal/496/49648868008/movil en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.199 Vol.83