Ⅰ. 서론
생명공학(Bioengineering)은 1950년대에 세포성분의 물리․화학적 성질과 변화로 생명현상을 해명하려는 분자생물학적 연구 결과가 축적되면서 이루어졌다. 분자 수준에서 유전현상의 연구는 분자생물학의 핵심 과제가 되었다. 뿐만 아니라 신경계 기능, 물질수송, 신호전달, 수정란으로부터
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
Materials
Accelerated electron : machine-generated accelerated electrons
Gamma-rays : cobalt 60, cesium 137
X-rays : machine-generated x-rays
Radiation dose : the quantity of radiation energy absorbed by the food
as it passes through the radiation field during processing.
Gray (Gy): one Gray equals one Joule of energy absorbed per
microbiological problems in foods. In September 1997 a Study Group was jointly convened by the WHO, FAO and IAEA to evaluate the wholesomeness of food irradiated with doses above 10 kGy. This Study Group concluded that there is no scientific basis for limiting absorbed doses to the upper level of 10 kGy as currently recommended by the Codex Alimentarius Commission. Food irradiation technology is
Microbe Pollution
Man-made mistakes during production
Problems due to age
Many reasons, but
But what?
The main reason is that people discard robots
They tire of old robots
Keep buying newer models
And then discard them when problem occurs
However
Robots do not want to be discarded
Is that true?
Human beings are different from robots
but its not as simple as black and white
Humankind is selfish
In