as well as in the cell wall of bacteria such a Streptococcus
zooepidemicus [1–3]. HA has numerous and increasing applications
in clinical and cosmetic areas including, among others, plastic
surgery, treatment of arthritis,major burns and intra-ocular surgery
[3,4]. As a consequence of these wide applications, in recent years
HA production from microbial fermentation is receiving increased
attention for avoiding the risk of cross-species viral infection, to
have lower production cost and to favour a more efficient purification
[5,6].