brownswiss

Oldest Biorefineries used for Pretreatment of Lignocellulose: The Cows

Levulinic acid is a platform chemical with significant potential to substitute petroleum-based products in the chemical and fuel sectors.

Agricultural waste, cow dung, was used as feedstock for the production of a high value–added chemical levulinic acid (LA) in dilute acid aqueous solutions.

Researchers from “Agro-Environmental Protection Institute, Chinese Academy of Agricultural Sciences” developed a promising strategy for the value-increment utilization of cow dung.

A high LA yield of 338.9 g/kg was obtained from the pretreated cow dung, which was much higher than that obtained from the crude cow dung (135 g/kg), mainly attributed to the breakage of the lignin fraction in the lignocellulose structure of the cow dung by potassium hydroxide (KOH) pretreatment, and thus enhanced the accessibility of cow dung to the acid sites in the catalytic reaction.

molecules-22-00285-ag

Meanwhile, another value-added chemical formic acid could be obtained with a yield of ca. 160 g/kg in the process, implying a total production of ca. 500 g/kg yield for LA and formic acid from the pretreated cow dung with the proposed process. The developed process was shown to be tolerant to high initial substrate loading with a satisfied LA yield. This work provides a promising strategy for the value-increment utilization of lignocellulosic agricultural residues.

View Full-Text


References:

Download:

Advertisements

One thought on “Levulinic Acid from Cow Dung

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s