0000000000204099
AUTHOR
Anne Endrizzi
Transferts de matière au travers des emballages au contact de produits alimentaires
Le point sur des recherches dans le domaine des transferts de matière au travers des emballages : impact sur la qualité du produit, causes de ces transferts.
Bacterial Bioconversion of Primary Aliphatic and Aromatic Alcohols into Acids: Effects of Molecular Structure and Physico-chemical Conditions
The biotransformation of four alcohol substrates (butanol, 2-methylbutanol, 3-methylbutanol and 2-phenylethanol) into their acids was studied using a strain of Acetobacter aceti. Bioconversion yields depended on the molecular structure of the alcohol. Biotransformation of high concentrations of alcohols was possible until the precursor reached an inhibiting concentration (3.8 g dm -3 for butanol and 3-methylbutanol, 4.2 g dm -3 for 2-methylbutanol). In contrast, biotransformation of 2-phenylethanol decreased when alcohol concentration was higher than 0.3 g dm -3 . Dissolved oxygen concentrations and pH conditions of the medium were important factors in improving bioconversion. Transformatio…
Environmentally eco-reasoned design process for functional yeast production and stabilization
Environmentally eco-reasoned design process for functional yeast production and stabilization. 3. European Congress of Applied Biotechnology (ECAB 3)