Determination of Optimal Conditions for Obtaining Polylactic Acid by Microwave-Assisted Direct Polycondensation

EasyChair Preprint 6121

Abstract

Introduction: An alternative to petrochemical polymers is polylactic acid. Objective: To determine the optimal polylactic acid conditions by microwave-assisted direct polycondensation to obtain the highest yield. Materials and methods: 28 lactic acid and 32 PLA studies were compared. Results: Food residues with sweet sorghum juice, Bacillus coagulans and Lactobacillus rhamnosus microorganisms, using Fed-Batch SSF, for 20-40 h, between 30-45oC and pH 5-7. As a synthesis, commercial or fermented lactic acid between 25-50 mmHg under vacuum, SnCl2/p-TsOH at 0.1-0.6% for 15- 45 min with 100-300W at 50-150°C. Conclusions: Several factors influence the performance and type of polymer, such as raw material, type of microorganisms, type of fermentation and pH.

Keyphrases: Fermentación, Polylactic acid, biodegradable, microwave radiation, polycondensation

@booklet{EasyChair:6121,
  author    = {Diego Alexander Cumbe Gordillo and Michelle Alejandra Herrera Cortés and Linet Hernández Gil and Augusta Jiménez Sánchez and Elianne Rodríguez Larraburu and Carla María Gutiérrez Quiroz},
  title     = {Determination of Optimal Conditions for Obtaining Polylactic Acid by Microwave-Assisted Direct Polycondensation},
  howpublished = {EasyChair Preprint 6121},
  year      = {EasyChair, 2021}}