Biotechnology Letters, Vol.22, No.18, 1471-1475, 2000
Comparison of mineralization of starch in liquid, inert solid and compost media according to ASTM and CEN norms for the composting of packaging materials
Mineralization percentages of ground starch-based films are similar (68-72%), whatever the degradation medium and the norm used, with standard deviations less than 8%. Vermiculite, an inert solid medium, shows an intermediary behaviour, between liquid and compost media. Consequently, this support is suitable for further degradation studies, including the determination of carbon balances.