Biological activities of Saccharomyces cerevisiae and fermented rice bran as feed additives.
OBJECTIVE
The objective of the present study was to examine for the various biological activities for feed additives of Saccharomyces cerevisiae and fermented rice bran.


METHODS
The feed additives (100 g of each: YE, brewery yeast; PM, mixture of YE and SF; SF, fermented rice bran) were decocted with 2 l water at 100 degrees C to a half volume.


RESULTS
The hot-water extract of PM was found to increase the stimulation of the macrophage activation (2.0-fold) and the intestinal immune modulating activity (1.8-fold), compared with those of control. When the hot-water extracts of PM, SF and YE were fed to the rats for 8 d (1 g kg-1 d-1), PM and SF showed the more effective anti-stress effect on spleen, thyroid and thymus gland.


CONCLUSIONS
The hot-water extract of PM can have a significant impact on strengthening the living body's immune system and proliferating anti-stress activities with relation to enhance immunity.
Koh
J H
JH
NEL Biotech Research Institute, NEL Biotech. Co. Ltd, Kyonggido, Korea.
Yu
K W
KW
Suh
H J
HJ
D000302:Adrenal Cortex / Q000166:cytology / Q000378:metabolism*; D000311:Adrenal Glands / Q000378:metabolism; D000821:Animal Feed / Q000382:microbiology; D000818:Animals; D005285:Fermentation; D007103:Immobilization; D008262:Macrophage Activation; D008297:Male; D051379:Mice; D008809:Mice, Inbred C3H; D012275:Oryza / Q000378:metabolism*; D051381:Rats; D017207:Rats, Sprague-Dawley; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D013154:Spleen / Q000378:metabolism; D013950:Thymus Gland / Q000378:metabolism; D013961:Thyroid Gland / Q000378:metabolism