Ⅰ. Introduction of Study
1. Background of study
Although the name of 'QR code' was difficult to remember at first, the recognition rate of 'QR Code' is increasing day by day. As smart phones have become popular globally, various marketings which are using it have appeared. One of the typical marketings is QR code marketing. If QR code which is also called 2D barcode is scanned, it simpl
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
2. 제한효소(restriction enzyme)에 의한 유전자의 분리
유전자 클로닝은 DNA분자를 아주 정확하고 반복적으로 절단할 것을 요구한다. 각 Vector 분자의 circle을 열어서 새로운 DNA가 삽입될 수 있도록 각 분자마다 하나의 같은 위치가 절단되어야 한다. DNA를 자른다는 것은 nucleotides를 연결하고 있는 phosphodiester b
dish, sterile tip
Methods
1. 배지의 제조
Plate Count Agar
Pancreatic digest of casein 5.0g
Yeast Extract 2.5g
Dextrose 1.0g
Agar 15.0g
MacConkey Agar
Pancreatic Digest of Gelatin 17.0g
Pancreatic Digest of Casein 1.5g
Peptic Digest of Animal Tissue 1.5g
Lactose 10.0g
Bile Salts 1.5g
Sodium Chloride 5.0g
Agar 13.5g
Neutral Red 0.03g
Crystal Violet 0.001g
extraction), 전기화학적 분석(electroanalysis)등의 방법을 사용하는 무게분석(Gravimetric analysis)과 중화반응(Neutralization), 산화․환원 반응등을 이용하는 부피분석(Volumetric analysis), 광학적 분석법(optical method)등을 사용하는 기계분석(Instrumental analysis)이 있다.
부피분석에는 분석물질과 반응하는데 필요한