Ting Y.-HKAI-YIN LO2022-04-252022-04-25202116052471https://www.scopus.com/inward/record.uri?eid=2-s2.0-85118216515&doi=10.6578%2fTJACFS.202103_59%281%29.0003&partnerID=40&md5=7784e4ea5cf7d22471e65547a91c4648https://scholars.lib.ntu.edu.tw/handle/123456789/606025Polylactic acid (PLA) is one of the most popular substitutes for plastics. Although PLA can decompose completely, its degradation can only happen in stringent compost condition but not in natural environment. Thus, PLA waste is still usually treated by combustion. To find out how to accelerate the degradation of PLA, we tested different factors of PLA decomposition in aerobic solid-state fermentation. Different agricultural wastes, like rice straw, poultry manure, soybean flour, or feather powder were used as the fermentation materials. Various reaction conditions, temperature, gas supply, carbon to nitrogen (C/N) ratio, etc. and different pre-treatment conditions were included in the tests. This study found PLA can achieve the best degradation condition at 50°C when PLA was pretreated with UVC and then incubated in the fermentation condition made with chicken manure and rice straw at the C/N ratio of 20 and with 60% water content. ? 2021 Chinese Agricultural Chemical Society. All rights reserved.Aerobic solid-state fermentationDecompositionPoly lactic acidPre-treatment[SDGs]SDG12journal article10.6578/TJACFS.202103_59(1).00032-s2.0-85118216515