10.57647/j.ijic.2024.1503.17
Sugarcane bagasse as a material in the production of polylactic acid
- Avell´an Rengifo Adriana Cecilia
1 - Mendoza Palma Angie Nicole1
- Wilmer Ponce2
- Mar´ıa Antonieta Riera*
1
- Department of Chemical Processes, Food and Biotechnology, Faculty of Engineering and Applied Sciences, Chemical Engineering Degree, Universidad T´ecnica de Manab´ı, Ecuador
- National Institute of Agricultural Research, Portoviejo Experimental Station, Portoviejo, Ecuador
Received: 2024-06-21
Revised: 2024-08-14
Accepted: 2024-09-04
Published in Issue 2024-09-20
Copyright (c) 2024 @Authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
Sugarcane bagasse (SCB) is an abundant, renewable, and low-cost lignocellulosic material from sugarcane juice extraction. The SCB was used as a substrate for the production of lactic acid (LA), with Lactobacillus helveticus/Streptococcus thermophilus as bacteria, in different fermentation conditions: (4, 8, 24, 48, 72) hours, and (37, 40)◦C. The highest concentration of LA was 3.56 g/L at 40◦C after 72 hours of fermentation. The polymerization of LA was the ring opening method, obtaining 1.15 g of PLA with a yield of 19.29% and 0.12% concerning lactide and SCB. Although the concentration obtained is low concerning other research, the SCB use in countries
with high sugar cane production represents an eco-friendly proposal for producing organic acids and biobased polymers with properties similar to the synthetic origin. This research provides an environmental solution to the problem of agribusiness waste and a proposal with the potential to develop new products.
Keywords
- Acid lactic,
- Bioplastics,
- Sugarcane,
- Waste revaluation