Effect of Extraction Conditions on the Quality of Dietary Fiber Powder from Bael Pulp (Aegle Marmelos) Residue

Abstract

The effects of temperature and time of water extraction on the quality of dietary fiber powder from bael pulp residue were evaluated as following conditions: temperature 70°C and 90°C, time 1 and 2 hour. It was found that the condition of water extraction significantly affected the content of insoluble fiber, soluble fiber, total dietary fiber, total sugar and colors of bael pulp residue powder (p<0.05). The most appropriate water extraction condition which contained the highest content of total dietary fiber was at temperature of 90°C for 1 hour. Then the effect of ethanol extraction on the quality of dietary fiber powder from bael pulp residue was studied. It was found that the dietary fiber powder from water extraction combined with ethanol extraction contained higher content of total dietary fiber and insoluble dietary fiber than dietary fiber powder from water extraction alone. The optimum condition for extraction was water extraction combine with ethanol extraction.