China:Using tape to tie vegetables causes over the limit formaldehyde
Xu Lan, an associate professor of apllied chemistry at Xi Nan University's Faculty of Chemistry demonstrates that the main component of the tape used for tying vegetables in supermarkets is polyacrylate. If people cook vegetables that have tape residue left on them or use solvents to clean these vegetables, a part of those chemicals could disolve, and if such vegetables are consumed for a long period of time, it could have a poisonous side-effect on the digestive system and liver or kidneys.