Modeling of yeast proliferation lag-time irradiated by ultrasonic
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Publication Details
Author list: Jomdecha C., Sritarathorn K.
Publisher: American Scientific Publishers
Publication year: 2013
Journal: Advanced Science Letters (1936-6612)
Volume number: 19
Issue number: 10
Start page: 3111
End page: 3113
Number of pages: 3
ISSN: 1936-6612
eISSN: 1936-7317
Languages: English-Great Britain (EN-GB)
Abstract
This paper presents an alternative method for modeling of yeast lag phase using process identification to identify the effect of ultrasonic irradiation on yeast proliferation period. As of a transfer function representation, the models were constructed from experiment data in form of input-output relation. Growth parameters including lag time and growth rate were also estimated numerically to distinguish the effects of the ultrasonic irradiation. All of fitted data by the model were validated and shown more than 90% goodness of fits. Results show that the ultrasonic considerably influent to the lag time of the yeast growth. Generating the proper ultrasonic energies of 16% and 24% of power could reduce the lag time duration up to 30 min compared to the control condition. On the other hand, high ultrasonic energy of 32% could increase the lag time and reduce the yeast growth. ฉ 2013 American Scientific Publishers All rights reserved.
Keywords
Transfer function, Ultrasonic irradiation, Yeast lag time
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