TY  - EJOU
AU  - Kundys, Anna  
AU  - Ostrowska, Justyna  
AU  - Chojnacka, Urszula  
AU  - Grodzka, Zuzanna  
AU  - Lange, Aleksandra  
AU  - Paluch, Magdalena  

TI  - Enzymatic Degradation of Poly(butylenesuccinate)/ Thermoplastic Starch Blend
T2  - Journal of Renewable Materials

PY  - 2018
VL  - 6
IS  - 6
SN  - 2164-6341

AB  - The degradation of thermoplastic starch blend in the presence of commercial α-amylase and unpurified amylase of microbial origin was investigated. The blends consisting of thermoplastic starch and poly(butylene succinate) have potential use in packaging applications thus, it is essential to establish susceptibility to degradation. Molar mass loss, gravimetric weight loss, and molecular structure were evaluated. The changes in the surface were observed with scanning electron microscopy. It was confirmed that there was a significant difference in gravimetric weight loss between the blends degraded in two different solutions. Unpurified enzymes of microbial origin, produced by Rhizopus oryzae cultures decomposed analyzed materials more efficiently than purified commercial ones. Moreover, it was proved that in applied conditions, the molar mass of PBS fraction did not change significantly.
KW  - Poly(butylene succinate)
KW  -  starch
KW  -  α-amylase
KW  -  Rhizopus oryzae
KW  -  urea

DO  - 10.32604/JRM.2018.00134