02. Immune power up with green tea
16 August, 2021 by ShimodaFukuomi in Series
‘Do you need medicine?’
The 2nd time is about "Immune power up with green tea".That the "health benefits of green tea", has written a special edition. The 2nd time is about "Immune power up with green tea".
- Prevention of cancer
- Immune power up
- Lose weight
- Decrease in cholesterol level
- Improve memory and learning ability
- Prevention and bactericidal action of food poisoning
- Caries prevention
- Prevention of halitosis
- The effect of preventing drowsiness
- Suppress the possibility of functional disorder
- Adult disease prevention
- Help the gastrointestinal work
- Prevention of arteriosclerosis and stroke, prevention of blood
- High blood pressure (hypertension)
- Suppression of atopic and pollinosis
- Anti-influenza action
- Effect on AIDS
- Hangover prevention
- Stress relief
Tea catechinCatechin is a kind of polyphenols. There are four kinds of catechins contained in tea. Its catechin is classified into 4 different chemical structures.
- Epigallocatechin gallate (EGCG)
- Epigallocatechin (EGC)
- Epicatechin gallate (ECG)
- Epicatechin (EC)
Epigallocatechin gallate (EGCG)Catechin is included not only in green tea but also in tea and oolong tea. However, this EGCG (epigallocatechin gallate) is only contained in green tea. EGCG (epigallocatechin gallate) accounts for about half of green tea catechins.
Antioxidants with green tea
Epigallocatechin gallate (EGCG)EGCG (epigallocatechin gallate) must be extracted from tea leaves with boiling water at 80 ° C or higher. It can be ingested when you drink hot tea. Antioxidant power of EGCG (epigallocatechin gallate). It is about 90 times the vitamin C and about 20 times the vitamin E. EGCG is immunosuppressive, such as "anti-inflammatory effect".In other words, it seems that there is a function of "brake" that suppresses runaway of immune function such as allergy.
Epigallocatechin (EGC)EGC (epigallocatechin) works to strengthen the immune system, in particular. EGC (epigallocatechin) contains more extracted at low temperature. When extracting EGC (epigallocatechin) with tea, It is considered that a lower temperature of about 20 ° C or lower is better, but if it is possible, extraction with ice water below 4 ° C is recommended. EGC has been elucidated to activate macrophage function of immune cells. Macrophages can react quickly against foreign body invasion in addition to removing foreign substances that have entered. In other words, EGC is considered to support improving immune function.
Green Tea Consumption Is Inversely Associated with the Incidence of Influenza Infection among Schoolchildren in a Tea Plantation Area of Japan Green tea is known to contain antiviral components that prevent influenza infection....Our findings thus suggest that the consumption of 1–5 cups/d of green tea may prevent influenza infection in children. by THE JOURNAL OF NUTRITION (The Journal of Nutrition, Volume 141, Issue 10, 1 October 2011, Pages 1862–1870, https://doi.org/10.3945/jn.110.137547)Besides this, "Immune power up" efforts using various teas have been done in Japan.
What kind of tea do you drink?
Hot tea is anti-inflammatory by EGCGBy brewing tea with hot water (heating at about 80 ° C), a lot of EGCG is extracted. Catechin is also included in Black tea and oolong tea, but this EGCG is only green tea contains. When investigating the incidence of influenza when drinking green tea for children in Shizuoka prefecture, the following results were reported.
- If you drink 2 cups of green tea a day, influenza incidence decreases by 38%
- If you drink 3 to 5 cups of green tea a day, influenza incidence decreases by 46%
Cold tea is immune activated by EGC
When extracting tea with cold water, EGCG is suppressed and many EGC are extracted. In this case, since caffeine hardly comes out, you can drink tea safely even if you drink tea before going to bed or pregnant women. In addition, many theanine which is ”umami ingredients” are extracted. However, it is difficult to extract bitterness, so it is easy to feel the original sweetness of tea.
Tags: Catechin, effects, health benefits, influenza, japanese tea