Modified atmosphere (MA)techniques for horticultural products are based on the principle that manipulating or controlling the composition of the surrounding atmosphere affects the metabolism of the packaged product. By creating favourable conditions, quality decay of the product can be inhibited. The different MA techniques come with different levels of control to realise and/or maintain the composition of the atmosphere around the product. Passive MA packaging(MAP)
absorbers see scavengers integrated active packaging, storage bsorption 22, 144-5 and distribution 5. 18. 204 see also packaging- flavour interactions 535-49 absorption-type antimicrobial packaging legislation see legislation aldehyde scavengers 514