Fermentative l-lactic acid production from pretreated whole slurry of oil palm trunk treated by hydrothermolysis and subsequent enzymatic hydrolysis

2015 ◽  
Vol 185 ◽  
pp. 143-149 ◽  
Author(s):  
In-Yong Eom ◽  
Young-Hoon Oh ◽  
Si Jae Park ◽  
Seung-Hwan Lee ◽  
Ju-Hyun Yu
Keyword(s):  
Lactic Acid ◽  
Enzymatic Hydrolysis ◽  
Oil Palm ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Oil Palm Trunk ◽  
Whole Slurry

Ethanol and lactic acid production using sap squeezed from old oil palm trunks felled for replanting

2010 ◽  
Vol 110 (3) ◽  
pp. 322-325 ◽  
Author(s):  
Akihiko Kosugi ◽  
Ryohei Tanaka ◽  
Kengo Magara ◽  
Yoshinori Murata ◽  
Takamitsu Arai ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Oil Palm ◽  
Acid Production ◽  
Lactic Acid Production

Microwave Assisted Enzymatic Hydrolysis of Corn Stalks for L-Lactic Acid Production

2010 ◽  
Vol 113-116 ◽  
pp. 712-715
Author(s):  
Xue Xin Yang ◽  
Gui Zhen Fang
Keyword(s):  
Lactic Acid ◽  
Sulfuric Acid ◽  
Enzymatic Hydrolysis ◽  
Sodium Hydroxide ◽  
Acid Production ◽  
Sodium Hydroxide Solution ◽  
Lactic Acid Production ◽  
Yield Ratio ◽  
Hydroxide Solution ◽  
Dilute Sodium Hydroxide

Glucose production from pretreated corn stalks by cellulose enzymatic hydrolysis with cellulase was investigated and compared with no pretreatment, as a reference. The corn stalks were pretreated with microwave, sulfuric acid hydrolysis and dilute sodium hydroxide solution hydrolysis respectively. The enzymatic hydrolysis experiments were carried out at 50°C, 50 g/l dry matter (DM) solid substrate concentration and 15 filter paper unit (IU)/g DM of a commercial cellulase. Fermentable sugar was able to be produced from all the pretreated corn stalks with an overall yield of 29-58% of the maximum theoretical yield, based on the glucan available in the solid and liquid substrate. The corn stalks pretreated with dilute acid had the best glucose yield as 58.09% followed by the corn stalks pretreated with acid and microwave with an overall yield of 57.02% with 15 IU/g DM of cellulase. Glucose was the main product with enzymatic hydrolysis yield ratio 38.89%in the dilute sulfuric acid pretreated corn stalks, while with enzymatic hydrolysis yield ratio 51.07%in the dilute sodium hydroxide solution and microwave pretreated corn stalks under enzymatic hydrolysis conditions. These advantages, along with their negative price, make these solids a valuable raw material for L-lactic acid production.

Whole slurry saccharification of mild oxalic acid-pretreated oil palm trunk biomass improves succinic acid production

2021 ◽  
Vol 171 ◽  
pp. 113854
Author(s):  
Nurul Adela Bukhari ◽  
Soh Kheang Loh ◽  
Abdullah Amru Indera Luthfi ◽  
Peer Mohamed Abdul ◽  
Abu Bakar Nasrin ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Succinic Acid ◽  
Oil Palm ◽  
Acid Production ◽  
Oil Palm Trunk ◽  
Succinic Acid Production ◽  
Whole Slurry
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