One Step Catalytic Conversion of Polysaccharides in IUlva prolifera/I to Lactic Acid and Value-Added Chemicals

The production of lactic acid and value-added chemicals (such as hydroxypropanone, glycolic acid, and formic acid) directly from Ulva prolifera via one-step catalytic process was studied. The effect of different amounts of YCl[sub.3]-derived catalysts on the hydrothermal conversion of carbohydrates...

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Bibliographic Details
Published in:Catalysts 2023-01, Vol.13 (2)
Main Authors: Li, Mingyu, Zhou, Yingdong, Hu, Changwei
Format: Article
Language:English
Subjects:
Dextrose
Glucose
Polysaccharides
Online Access:Get full text
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Summary:The production of lactic acid and value-added chemicals (such as hydroxypropanone, glycolic acid, and formic acid) directly from Ulva prolifera via one-step catalytic process was studied. The effect of different amounts of YCl[sub.3]-derived catalysts on the hydrothermal conversion of carbohydrates in Ulva prolifera was explored, and the reaction conditions were optimized. In this catalytic system, rhamnose could be extracted from Ulva prolifera and converted in situ into lactic acid and hydroxypropanone at 160 °C, while all the glucose, xylose, and rhamnose were fractionated and completely converted to lactic acid at 220 °C or at a higher temperature, via several consecutive and/or parallel catalytic processes. The highest yield of lactic acid obtained was 31.4 wt% under the optimized conditions. The hydrothermal conversion of Ulva prolifera occurred rapidly (within 10 min) and showed promise to valorize Ulva prolifera.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal13020262