Impact of overflow vs. limitation of propionic acid on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biosynthesis

Influence of the 3-Hydroxyvalerate Content on the Processability, Nucleating and Blending Ability of Poly(3-Hydroxybutyrate-co-3-hydroxyvalerate)-Based Materials

“…It is noted that PHBV3 is in the present study. P(3HB- co -3HV) copolymers with 18 and 28 mol % of 3HV units (denoted PHBV18 and PHBV28, respectively) were produced by UMR IATE (Montpellier, France) in the framework of the ANR LOOP4PACK project, as reported in ref ( 34 ) and extracted using a solvent-free high pressure homogenization (HPH) based method. 19 It was shown in a previous study 19 that the three copolymers considered in the study crystallized in the P(3HB) crystalline lattice.…”

“…One approach to counter these drawbacks is to prepare P­(3HB- co -3HV) with different contents of 3HV units, by adjusting production process parameters such as microbial culture feeding strategies. , An increase in 3HV percentage molar content (mol %) from 0 to 100 mol % resulted in a larger amorphous region and then a linear decrease of the glass transition temperature. The melting temperature and crystallinity are lowered by increasing the 3HV content up to 45 mol % .…”