TY - JOUR
T1 - Valorisation of textile waste by fungal solid state fermentation
T2 - An example of circular waste-based biorefinery
AU - Hu, Yunzi
AU - Du, Chenyu
AU - Leu, Shao-Yuan
AU - Jing, Houde
AU - Li, Xiaotong
AU - Lin, Carol Sze Ki
PY - 2018/2
Y1 - 2018/2
N2 - This study investigated the feasibility of using textile waste as feedstock for cellulase production through solid state fermentation. Aspergillus niger CKB was selected with the highest cellulase activity (0.43 ± 0.01 FPU g−1) after 7 days of cultivation on pure cotton. Material modification techniques including autoclaving, alkali pretreatment and milling were applied on six types of textiles with various cotton/polyester blending ratios. The results indicated that using autoclaved textile blending cotton/polyester of 80/20 led to the highest cellulase activity (1.18 ± 0.05 FPU g−1) with CMCase, β-glucosidase and avicelase activities of 12.19 ± 0.56 U g−1, 1731 ± 4.98 U g−1 and 2.58 ± 0.07 U g−1, respectively. The fungal cellulase was then extracted and applied to textile waste hydrolysis, in which a sugar recovery yield of 70.2% was obtained. The present study demonstrates a novel circular textile waste-based biorefinery strategy with recovery of glucose and polyester as value-added products.
AB - This study investigated the feasibility of using textile waste as feedstock for cellulase production through solid state fermentation. Aspergillus niger CKB was selected with the highest cellulase activity (0.43 ± 0.01 FPU g−1) after 7 days of cultivation on pure cotton. Material modification techniques including autoclaving, alkali pretreatment and milling were applied on six types of textiles with various cotton/polyester blending ratios. The results indicated that using autoclaved textile blending cotton/polyester of 80/20 led to the highest cellulase activity (1.18 ± 0.05 FPU g−1) with CMCase, β-glucosidase and avicelase activities of 12.19 ± 0.56 U g−1, 1731 ± 4.98 U g−1 and 2.58 ± 0.07 U g−1, respectively. The fungal cellulase was then extracted and applied to textile waste hydrolysis, in which a sugar recovery yield of 70.2% was obtained. The present study demonstrates a novel circular textile waste-based biorefinery strategy with recovery of glucose and polyester as value-added products.
KW - Aspergillus niger
KW - Cellulose hydrolysis
KW - Circular textile
KW - Fungal cellulase
KW - Solid state fermentation
KW - Textile waste recycling
UR - http://www.scopus.com/inward/record.url?scp=85031749196&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85031749196&origin=recordpage
U2 - 10.1016/j.resconrec.2017.09.024
DO - 10.1016/j.resconrec.2017.09.024
M3 - RGC 21 - Publication in refereed journal
SN - 0921-3449
VL - 129
SP - 27
EP - 35
JO - Resources, Conservation and Recycling
JF - Resources, Conservation and Recycling
ER -
