TY - JOUR AU - Zaher, F. A. AU - Aly, Saadia M. AU - El-Kinawy, O. S. PY - 1998/12/30 Y2 - 2024/03/29 TI - Lipase - Catalyzed glycerolysis of sunflower oil to produce partial glycerides. JF - Grasas y Aceites JA - Grasas aceites VL - 49 IS - 5-6 SE - Research DO - 10.3989/gya.1998.v49.i5-6.750 UR - https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/750 SP - 411-414 AB - Partial glycerides were prepared by glycerolysis of sunflower oil in presence of lipase enzyme as catalyst. Six lipases of different origins were used and compared for their catalytic activity. These include <i>Chromobacterium</i> lipase, pancreatic lipase, <i>Rhizopus arrhizus</i> lipase, lyophilized lipase (plant lipase) in addition to two lipase preparations derived from <i>Rhizopus japonicas</i>; Lilipase A-10 and Lilipase B-2. <i>Chromobacterium</i> lipase was found to be the most active as glycerolysis catalyst whereas lyophilized lipase; a plant preparation from wheat germ was the least active. The results have also shown that the lipase type affects also the product polarity and hence its field of application as a food emulsifier. Less polar products can be obtained using <i>Chromobacterium</i> lipase whereas the more polar ones using a fungal lipase preparation «Lipase A-10». The product polarity is also influenced by the process temperature but the mode of its effect is different for different lipases. ER -