Browsing UT - Chemistry by Author "S. Achmadi, Suminar"
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Antioxidant Activity of Lignin from Kraft Black Liquor Substance Eucalyptus Wood
Kusumawati, Trisna | Syahbirin, Gustini | S. Achmadi, Suminar (2010)Kraft black liquor is produced from kraft process as byproduct. Lignin is the highest component in this black liquor, approximately 46% of the total solid. Lignin can be isolated from black liquor by precipitation using ... -
Transesterifrication Optimization of Sterculia foetida Biodiesel and Its Quality During Storage
Santoso, Yogie | S. Achmadi, Suminar | Sudradjat (2010)The availability of natural oil is decreasing rapidly. Therefore, alternative fuel is needed. Biodiesel is one of alternative fuel which can replace diesel fuel. Kepuh (Sterculia foetida) oil can be converted to biodiesel ...