1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
Antibacterial properties of hen egg white lysozyme against beer spoilage bacteria and effect of lysozyme on yeast fermentation
antibacterial activity against Gram-positive bacteria + no activity against yeast.
Lysozyme can be used for the specific inhibition of beer spoilage bacteria
Lactic acid bacteria strains are sensitive to the antibacterial effect of lysozyme
No negative effect i
thickness limit
Grafting from
‘‘Grafting-from’’ involves an in situ polymerization of an initiator functionalized surface with monomer.
Advantage
-can produce polymer brushes of high grafting density
-control over film thickness and composition
Limitation
-initiator surface coverage
-initiator efficiency
-rate of diffusion of monomer to active polymerization sites.
2. Important Characteristics of TiO2
(1) Photocatalystic Character
- If the light energy is irrigated at TiO2, the catalyst which absorbed the light energy will activate so it oxidize and restore aspirates.
(2) Characteristic of Ultra-hydrophile
- Ultra-hydrophile is the status that befit with the surface of the material such as glass.
For many of Materials, if we drop water, it ma
Antibacterial Film dried at Room Temperature using nano-sized TiO2 Particle
2. Degradation of Atrazine and Reduction of Acute Toxicity using TiO2 Photocatalysis
3. Research Paper : A Study on the Degradation of Parathion and Reduction of Acute Toxicity in Solar TiO2 Photocatalysis
4) Coating top layer
A. use to thermal pressing machine for coating
Reliability of the methods
active transport를 촉매하는 link로서 역할을 한다.
2) 전자전달과 산화적 인산화(Electron transport & Oxidative Phosphorylation) cytoplasm에 Mitochondria가 없는대신 cell membrane에 Cytochrome 및 기타 respiratoty Enzyme이 존재하여 그 기능을 대신한다.
3) 가수분해효소의 분비(Excretion of Hydrolytic exoenzymes) Macromolecular Polymer를 영
1. UTI의 흔한 원인균
# Escherichia coli는 급성 복합 요로 감염 (UTI)의 가장 M/C한 원인
# 다른 원인균으로는 Enterobacteriaceae (Klebsiella spp와 Proteus spp), Pseudomonas, enterococci, staphylococci (methicillin-sensitive Staphylococcus aureus [MSSA]와 methicillin-resistant S. aureus [MRSA])가있음.
# 특정 병원균의 유행은 부분적으로 host에
TRACKING DOWN the line of empty, open capsules. Frozen twilight. The final four capsules are sealed, lids in place.
ANGLE - INSIDE CAPSULE
NEWT, then RIPLEY. HICKS next, his head and chest bandaged. Then BISHOP in his caul of plastic. But the lid of Bishops capsule is misted with hothouse condensation.
CLOSER
A tear of fluid streaks the condensation.
An alarm SOUNDS.
A monitor begins to scroll da
항균요법 (Antimicrobial therapy)
정의 : 숙주에 해를 주지 않으면서 병원체에 직접 작용하여 장애를 주어 사멸시키는 방법을 말한다.
항생제(antibiotic) : 살아있는 미생물의 대사산물이 미생물을 억제시키는 것
ex) 페니실린 (살아있는 미생물 대사산물)
항균제(antimicrobial agents) : 항생제(antibiotic) + 항미생물
History of sulfonylurea
IPTP for typhoid fever(장티푸스) in early 1940s
Many patients died. – acute & prolonged hypoglycemia
Carbutamide
effective oral hypoglycemic
Firtst sulfonyluea hypoglycemic