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Title 

Surface and physico-chemical properties of a glycolipid biosurfactant, mannosylerythritol lipid, from Candida antarctica

Authors 

Hee Sik KimJong Woon JeonSeong Bin KimHee Mock OhT J KwonByung Dae Yoon

Publisher 

Springer Verlag (Germany)

Issue Date 

2002

Citation 

Biotechnology Letters, vol. 24, no. 19, pp. 1637-1641

Keywords 

biosurfactantcandida antarcticamannosylerythritol lipidphysico-chemical propertiessurface activitycandida

Abstract 

Candida sp. SY16 produces a glycolipid-type biosurfactant, mannosylerythritol lipid (MEL-SY16) which, at low concentrations, emulsifies hydrocarbons, vegetable oil, and crude oil. The molecular weight of MEL-SY16 was 634 Da and its hydrophilic lipophilic balance (HLB) was 8.8. It decreased the surface tension to 30 dyne cm-1 at a critical micelle concentration (CMC) of 15.8 μM, and the minimum interfacial tension against kerosene (a mixture of petroleum hydrocarbons) was 0.1 dyne cm-1. MEL-SY16 was stable from pH 4 to pH 10, up to 90°C for 1 h, and against NaCl up to 100 mM. It was readily degraded by microorganisms in activated sludge within a short time, and exhibited very low toxicity to mouse fibroblast cells. These properties confirm that MEL-SY16 is suitable for a variety of environmental applications.

ISSN 

0141-5492

Link 

http://dx.doi.org/10.1023/A:1020309816545

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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