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2. ݱĪԸ
3. Ԫݱ

 

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1. Ѧʥ (, ߤ, )
2. (ܪ, Ѧ ʫ )
3. Bioremediation (׾)


1. :
2. : Mannosylerythritol Lipid (MEL) 5% ( ʥ 1% ڱػ)
3. Ю̫

BIOACTIVE () MEL 5%(v/v)
ж
(Pb) 2 ppm

4. BIOACTIVE
, , Colorimetric methodĪ

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OilTank, ⩪10 - 20෪֪߮ƪ

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1 L

η۰Ѣ
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(data)

ͣBIOACTIVE

ͣBIOACTIVEԸ

Surfactants
NR50
(g/l, w/w)
LAS
<0.01
SDS
0.05
C9-BS
0.02
MEL-SY16
5
Glycerol
50

NR50 values of the test surfactants were determined towards
mouse fibroblast L929 cells after 48 hrs exposure.

BIOACTIVEڪ

Properties
BIOACTIVE
Surface activity  
Minimum surface tension (dyne/cm) 29
CMC 10 mg/l (15 M)
HLB 8.6, o/w emulsifier
dispersion agent
Emulsification activity (unit) 70
Stability  
pH stability 4 - 10
Thermal stability up to 90 (75% in 100)
Salt (NaCl) resistance up to 100 mM (0.6%)
Other properties  
Toxicity (g/l, w/w) 5
Biodegradation Good

1 CMC value was measured with purified biosurfactant.
2 Emulsification activity was measured against hydrocarbons with crude
biosurfactant at a concentration of 0.1 g/l.
3 Stabilities were determined by measuring the surface tension of biosurfactant solution.
4 Salt resistance were determined by measuring emulsification activity.



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