Bioconversion property of tea leaves waste by Aspergillus Niger as functional fiber to decrease blood lipid

This research was aimed to find out the change of tea leaves waste fiber on lipid absorption after being fermented by aspergillus niger and also to be expected as a model to gain healthy livestock product. tea leaves waste was fermented by aspergillus niger during 6 day. fifteen of rats with initial weight of 41.17±4.05 g were fed ad libitum by diets containing different levels of unfermented and fermented tea leaves waste as follows: basal diet (r1),unfermented tea leaves waste 5% (r2),unfermented tea leaves waste 10% (r3),fermented tea leaves waste 5% (r4),fermented tea leaves waste 10% (r5). the results indicated that bioconversion of tea leaves waste in diet (r4 and r5) decreased almost all of fiber fractions (ndf 75.55%; adf 57.17%; celluloses 26.74%; lignine 31.19%),except hemicelluloses 18.38%,while the treatment did not change the lipid binding rate (2.07 vs 1.98). also,the result showed that rats fed with diets containing fermented tea leaves waste (r4 and r5) had reduced cholesterol (86.25;87.4 mg/dl) and triglyceride (47.06; 46.03 mg/dl),but not on hdlcholesterol (29.28; 26.51 mg/dl). it was concluded that bioconversion property of tea leaves waste by aspergillus niger changed fiber fraction and decreased blood lipid. © 2010 de gruyter open ltd. all rights reserved.