Rapid estimation of triacylglycerol content of Chlorella sp. by thermogravimetric analysis.
A simple and reliable method based on thermogravimetric analysis has been developed for determining triacylglycerol content in Chlorella sp. KR-1. There are two decomposing steps during pyrolysis of the microalgal cells and the second step of weight loss may be attributed to degradation and volatilization of triacylglycerols. The second peak height in the temperature derivatives of weight loss increased with the triacylglycerol content of the microalgal cells and the peak was around 390 °C regardless of the triacylglycerol contents. Based on these findings, a linear equation for determining triacylglycerol content was derived. The proposed method gives satisfactory results, showing small variance and a good interpolation capability.
Climate Change Technology Research Division, Korea Institute of Energy Research, Daejeon 305-343, Korea.
Jeong-Geol
JG
Na
Ho Se
HS
Lee
You-Kwan
YK
Oh
Ji-Yeon
JY
Park
Chang Hyun
CH
Ko
See-Hoon
SH
Lee
Kwang Bok
KB
Yi
Soo Hyun
SH
Chung
Sang Goo
SG
Jeon
D002708:Chlorella / Q000737:chemistry*; D013818:Thermogravimetry / Q000379:methods*; D014280:Triglycerides / Q000032:analysis*
D014280:Triglycerides