Either glycerol or {TAIL ~ lactic acid} as {HEAD ~ plasticizer} and, optionally, starch may also be blended with either the pectin or chitosan solutions used for film preparation 
Either glycerol or { TAIL ~ lactic acid } as { HEAD ~ plasticizer } and , optionally , starch may also be blended with either the pectin or chitosan solutions used for film preparation
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH