microorganisms that live in the digestive tracts of animals and is the largest reservoir of human flora.
“forgotten” organ
Bacteria up to 60% of the dry mass of feces
If bacterium has 1㎛ diameter, the length of 100 trillion bacteria is about 100 thousand kilometer.
It means we can turn around the earth twice and half with these bacteria.
Functions of gut flora in human body
Car
The World Health Organization defines probiotics as “live microorganisms, which, when controlled substandard amounts, confer a health benefit on the host.”
promote recovery from diarrhea.
produce lactase, relieve symptoms of
lactose intolerance and malabsorption.
reduce blood pressure in hypertensive
Probiotics have also proven useful in maintaining urogenital health.
The Human Gastrointestinal Tract인간의 소화기관
consists of stomach, small intestine, and large intestine
위, 작은 창자, 큰 창자로 구성되어 있다.
Responsible for
Digestion of food 음식물 소화
Absorption of nutrients 영양소 흡수
Production of nutrients by the indigenous microbial flora
고유미생물에 의한 영양소 생산
Contains 1013 to 1014
Mold lipase
from Mucor , Aspergillus, Rhizopus delemar, Rhizopus japonicus
Virus lipase
from Chromobacterium viscosum, Psuedomonas
fluorescence.
strong on heat.
Yeast lipase
from Candida rugosa
sensitive - temperature change
Ester transfer reaction
To produce specially the functional properties of fat and oil, Enzymatic engineering techniques are introduce
*유산균이란?
유산균이란 포도당이나 유당과 같은 탄수화물을 이용하여 유산을 생성하는 세균을 통칭하여 말하는 데 젖산균이라고도 하는 박테리아로서, 단백질을 분해하지만 부패시키는 능력은 없다. 즉 당류(Glucose)를 에너지원으로 사용하여 다량(50%이상)의 유산(젖산)을 생성하면서 사람이나 동물