Test with a mulch film (thickness 20㎛) 

 

 

 

 

 

 

 

 

 

 

 

 

                 

                             

                           July 19, 2014                                                                  August 19, 2014                                                                 August 26, 2014                                         

​

​

The above pictures show the decomposition process of the mulch film we have installed to test ourselves in 2014.

​

In 2013, before that, we provided our mulch film for a research at a Canadian university and got some test results as below in a report of 'Analysis of Aspergillus oryzae degradation of commercial agricultural mulch films composed of poly(butylene adipate-co-terephthalate) and poly(lactic acid)'.

​

​

"Though not a direct measure of biodegradation, the loss in mass of the mulch film supports the indication of biodegradation

via hydrolysis of the ester bonds.

​

Of the vessel incubation (44 days), Willeap film showed the greatest change in mass, being significantly greater than that of the

Abcde film (p =0.014) (Table 4).

 

During the cutinase assay incubation (15 days), Willeap film showed an even greater significant change in mass than either film

in vessel incubation (p = 0.006)."

​

​

​

​

​

​

​

​

​

​

​

 

Source: Hatheway, Savannah, 2014, Analysis of Aspergillus oryzae degradation of commercial agricultural mulch films composed of poly(butylene adipate-co-terephthalate) and poly(lactic acid), 15p

​

​

​

​

​

​

​

​

​