Study on the Growth Characteristics of Bifidobacterium A03 and A04 Toleranced to Gastrointestinal Tract

Abstract

Abstract: The growth characteristics of Bifidobacterium A03 and A04, which were tolerant to gastrointestinal tract, were studiedin CMRS medium. The results showed that they grew best in CMRS medium, their cell numbers were 9.03 and 9.26 log cfu/cmrespectively. Optimal temperature for their growth were 37℃, and optimal initial pH were 7.5 and 7.0 respectively. The optimalpercent of inoculability volume were 2% or 3%. A04 grew faster than A03, however, their acidic ability was similar and theywere tolerance to acid. There were not obvious delaying stage and in growth curve of A04, and it entered stability stage after 10h,but A03 entered delaying stage after 4h and entered stability stage after 12h.

Key words: bifidobacterium, growth characteristic, gastrointestinal tract

JIANG Zhi-Jie, LI Ping-Lan. Study on the Growth Characteristics of Bifidobacterium A03 and A04 Toleranced to Gastrointestinal Tract[J]. FOOD SCIENCE, 2004, 25(10): 66-70.

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Study on the Growth Characteristics of Bifidobacterium A03 and A04 Toleranced to Gastrointestinal Tract

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