Enzymatic degradation is a technique that is closer to the actual biodegradation than acid hydrolysis but we have
demonstrated both to have an excellent correlation.
However, a correlation of these two
techniques with bacterial biodegradation is difficult because of the accumulative deposit of
bacteria through empty pores left by the loss of TPS.
This difference is more pronounced forthe two blends we investigated which contain ca. 30% TPS.
In these two blends, the extent ofbacterial biodegradation was 39% and 22%, respectively which are less than 60% of the
available TPS, as demonstrated by hydrolytic degradation