non-traditional propagating practices which have not been used for food production within the Union before 15 May 1997, where those practices do not give rise to significant changes in the composition or structure of the food affecting its nutritional value, metabolism or level of undesirable substances;
ó chleachtais iomadaithe neamhthraidisiúnta nár úsáideadh do tháirgeadh bia laistigh den Aontas roimh an 15 Bealtaine 1997, i gcás nach n-eascraíonn athruithe suntasacha i gcomhdhéanamh nó i struchtúr an bhia as na cleachtais sin a dhéanann difear do luach cothaitheach an bhia, dá mheitibileacht nó do chion na substaintí neamh-inmhianaithe atá ann;