Parametric study on the low temperature spray drying of biosurfactant produced by Saccharomyces cerevisiae 2031 from sugarcane molasses media

Date

6-2015

Degree

Bachelor of Science in Chemical Engineering

Major Course

Major in Sugar Technology

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jeanne Michelle T. Valencia

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

Low-temperature spray drying was done on the biosurfactant produced by Saccharomyces cerevisiae 2031 from molasses medium. A General Factorial Design with two factors and three levels each was applied to determine the effect of inlet temperature and maltodextrin concentration on power recovery, moisture content and emulsification index of the powder. It was found that higher temperature and maltodextrin concentration resulted to higher powder recovery and lower moisture content of the spray-dried biosurfactant. Highest powder recovery of 75.41 % was obtained at 60ºC and 20% (w/v) maltoxtrin, while lowest moisture content of 4.98% was obtained at 60ºC and 25% (w/v) maltodextrin. However, the inlet temperature and maltodextrin concentration had no significant effect on the emulsification index. A numerical prediction for determining the best condition for spray drying was also done. The most favorable conditions for spray drying of biosurfactant were found at 60ºC inlet temperature and 22.59% (w/v) maltodextrin concentration . Experimental verification at the best conditions yielded a powder recovery of 75.67% and moisture of 4.99%.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 E62 /F35

Document Type

Thesis

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