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
Effect
- Quickly supplementing ATP
- Delaying the timing of fatigue
- Increasing the critical point of performing
anaerobic exercise
- Preventing muscle loss coming from muscle
breakdown and enhancing immunity
- Eliminating oxygen free radical, Anti-oxidation
- Improving endurance
다. Amino Acid의 Titration과 pH buffer 작용
Amino Acid를 NaOH와 같은 염기로 Titration을 하여 얻어지는 Titration Curve는 적정하는 Amino Acid의 pH buffer 작용을 잘 설명해 준다.
즉 Amino Acid의 Carboxyl기는 Weak Acid이므로 NaOH-와 같은 Strong Base와 반응하면 일정한 pH 범위 내에서 큰 pH 변화를 일으키지 않는 pH Buffer 작용을 한
Amino Acid의 Titration과 pH buffer 작용
Amino Acid를 NaOH와 같은 염기로 Titration을 하여 얻어지는 Titration Curve는 적정하는 Amino Acid의 pH buffer 작용을 잘 설명해 준다.
즉 Amino Acid의 Carboxyl기는 Weak Acid이므로 NaOH-와 같은 Strong Base와 반응하면 일정한 pH 범위 내에서 큰 pH 변화를 일으키지 않는 pH Buffer 작용을 한다는
비만이 반드시 치료받아야만 하는 만성질환으로 인식되면서, 각종 비만 치료방법에 대해 활발히 연구되고 있다. 그러나 비만은 치료하기도 어렵지만, 감소된 체중을 유지시키기는 더욱 어려워, 대부분의 사람들은 체중 증가를 경험하게 된다. 즉 비만치료를 이상적인 체중으로 감량한 후, 적어도 5년
Coffee
Coffee is reported to be among the most widely consumed beverages in the world.
For many people, coffee is a breakfast staple, providing a boost of energy to start the day.
Coffee is a complex chemical mixture reported to contain more than a thousand different chemicals.
Compounds in coffee may affect human health.
1. High blood pressure
Caffeine can cause a dramati
I. Problem definition
• Nongshim
Nongshim is Korea instant food Manufacturer Company that produces products such as instant noodles, u-dong, snacks, drinks etc. They recorded total revenue of 63,198 million won in 2010. Within this revenue, instant noodles represented 67.5%, which was equivalent to 42,659 million won. Nongshim is Korea’s No. 1 instant food industry company with Samyang
1. Bacteria(E.coli)
Advantage
Fast Growth rate
Cheap
Various cloning vectors
Disadvantage
Impossibility of posttranslational modification
Inclusion body
Only simple proteins
2. Yeast(S.cerevisiae)
Advantage
Large scale process
Cheap
partially possibility of posttranslational modification
Disadvantage
Shortage of cloning vectors
Overglycosylation
Recommended carbohydrate intake
RDA = 130 grams per day
AMDR = 45–65% of calories
Daily Value (for 2,000 kcal) = 300 grams
Dietary Guidelines
Choose/prepare foods with little added sugar
Choose fiber-rich fruits, vegetables, whole grains often
Moderating sugar intake
Use less added sugar
Limit soft drinks, sugary cereals, candy
Choose fresh fruits or those canned in water or juice
Raw milk
Fat-low, Fat-free milk
Lactose free milk
High calcium milk
Sterilized milk
DHA milk
Vitamin fortified milk
Goat’s milk
Has growth promotion and longevity effect.
Has antitumor activity.
Promotes immunity.
Good for teeth.
Good for healthy skin
Good for internal organs
Drink everyday
Drink at night
Drink cool milk
Drink white milk
Don’t drink with chocolate, sugar, a