Document Detail


Biodegradability of injection molded bioplastic pots containing polylactic acid and poultry feather fiber.
MedLine Citation:
PMID:  21320772     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The biodegradability of three types of bioplastic pots was evaluated by measuring carbon dioxide produced from lab-scale compost reactors containing mixtures of pot fragments and compost inoculum held at 58°C for 60days. Biodegradability of pot type A (composed of 100% polylactic acid (PLA)) was very low (13±3%) compared to literature values for other PLA materials. Near infrared spectroscopy (NIRS) results suggest that the PLA undergoes chemical structural changes during polymer extrusion and injection molding. These changes may be the basis of the low biodegradability value. Biodegradability of pot types B (containing 5% poultry feather, 80% PLA, 15% starch), and C (containing 50% poultry feather, 25% urea, 25% glycerol), were 53±2% and 39±3%, respectively. More than 85% of the total biodegradation of these bioplastics occurred within 38days. NIRS results revealed that poultry feather was not degraded during composting.
Authors:
H K Ahn; M S Huda; M C Smith; W Mulbry; W F Schmidt; J B Reeves
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-1-22
Journal Detail:
Title:  Bioresource technology     Volume:  -     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-2-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Published by Elsevier Ltd.
Affiliation:
Animal Environment Division, National Institute of Animal Science, RDA, Suwon, South Korea.
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