Microwave vs. conventional extraction of pectin from Malus domestica ‘F?lticeni’ pomace and its potential use in hydrocolloid-based films

Conventional extraction (CE) and microwave-assisted (MAE) were compared in terms of efficiency quality pectin two separate processes aimed to extract from Malus domestica ‘F?lticeni’ apple pomace. A similar yield a shorter time was observed for the procedure as CE, while galacturonic acid content degree esterification both methods. Apple extracted this plant source by methods had high content, molecular weight. Considering composition obtained pectin, under optimal conditions used produce edible films combination with hydroxypropyl methylcellulose (HPMC). Films formulated microwave significant lower oxygen permeability plasticized pure HPMC films, which makes suitable film-forming applications good barrier is required. • Microwave-assisted conventional citric extraction. The slightly improved process. main advantage process time. Microwave-extracted HPMC. low permeability.