Tea: The Essence Of The Fragrance

by Steven Popec 29. April 2010 20:37

The fragrance of tea depends on the essential oils and tar substances that are contained in plants. Essential oils are complex mixture of substances that belong to the most diverse class of compounds which are soluble in organic solvents and possessing the ability to escape from water vapor. Overall the total content of essential oil is minimal; it is determined by only hundredths of a percent. For example, aromatic black tea contains about 0.02% of oil. Pure essential oil of fresh tea leaf is a green color with a strong fragrance of fresh greens. In the technological processing of tea leaf occurs the formation of a new aromatic substances that contribute to the specific flavor of the finished product. Thus, the composition of essential oil of green plants is different from the finished black tea. The substances that make up the oils can be divided into 4 main classes of compounds: acids, carbonyl compounds, alcohols and phenols. These volatile compounds found in tea are trace amounts - 0.01% of dry matter, but their role in the establishment of the tea flavor is tremendous. 
 
Some parts of the plant contain different amounts of volatile compounds, which, in turn, differ in their compositions. The maximum concentration of essential oil found in the tender stems and leaves. The top leaf with the growing bud and two next leaves are equivalent to the content of essential oil. Further down the stem, as general coarsening occurs, oil content decreases. Which explains why the top three leaves are the most vaulable for high quality tea. 
 
In the formation of the aroma of tea, the main role is played by aromatic aldehydes (Organic compound that has OH-group in its structure. They are used in organic synthesis as fragrances). In the composition of essential tea oils are vanilla, lavender, cinnamon aldehydes, etc. During the processing of tea leaves into black tea, the various fractions of volatile compounds undergo significant changes. The total content of these compounds increases most radically in the early stages of rolling. In the process of withering the relative content of components with higher boiling point reduces and low-boiling point, on the contrary, increases. 
 
Along with essential oils important role in creating a tea aroma played by various resinous substances - carriers of flavor. They are in a close chemical relation with essential oils and are a complex mixture of different classes of organic compounds. 
 
The content of tarry substances in tea leaves ranges on average from 3% to 6%. These substances are separated by several fractions, the most valuable of which is a neutral faction. It has a pleasant sweet floral aroma. In the process of technological treatment , the amount of this fraction in tea leaves increases by 40%. 
 
During the processing of tea leaves, the content of resinous substances decreases, indicating the result of oxidation. I.e. ratio: fresh leaves – 3.48%, withered leaves – 3.27%, after two hours of curling – 2.92%, semi-finished product – 2.35%. 
 
Through fragrance of tea, all the deficiencies that have arisen as a result of violations of technological regimens or improper storage of products, can easily be found. Disadvantages may include: acidity, mustiness, smell of the green, smoke and other uncharacteristic for tea scents. Most difficult to improve defect is acidity, which results in a violation of the fermentation process. Since in the processing of tea leaves, especially during the fermentation, occurs a reduction of Tannin. Therefore, the tea produced in violation of this process turns out with a bitter flavor and pale color of infusion. The cause of the smell of greenery is an infringement of withering, rolling, and fermentation. Such a tea has a mild flavor that the brew is a greenish color in the cup with a greenish ring on the surface and instead of the characteristic astringent taste; this product has a bitter taste. If there is excessive moisture in semi-finished product (more than 7.5%) tea is aging much faster. For extended storage. it gets the smell of dampness and can come in unsuitable conditions for consumption. 
 
In addition, it is worth noting that different varieties of tea, as well as different ways of brewing, have an imprint on the final quality of the drink

Health Benefits of Tea

by Steven Popec 18. January 2010 14:35

Health Benefits

Were you aware that our nation drinks approximately 165 million cups of tea daily? Millions of people love the taste of tea, but many of us are not aware of the healing powers tea can actually give us.

Tea is not only delicious, it can also help prevent High Blood Pressure by controlling angiotensin, which eventually leads to high blood pressure, according to health experts.

Studies have shown that drinking tea can also provide us with protection against cancer, heart disease and it can also aide in preventing memory impairment conditions such as Alzheimer’s.

 

Healthy Antioxidants within Tea

Flavanoids generally found in vegetables and fruits; contain powerful antioxidants such as Vitamin C and E.  So, one cup of tea actually contains twice as many of these Flavanoids as one apple.

You often hear about the importance of consuming fruits and vegetables, but rarely are you encouraged to drink tea - maybe more of us should.

Consuming tea and its healthy antioxidants provides us with antiviral, antibacterial, anti-inflammatory, and antiallergenic benefits. 

Drinking tea also has the benefit of helping improve concentration thus improving performance. Concentration is improved due to the caffeine that is within tea. The caffeine makes you more alert and focused.

Tea is also a natural source of fluoride; therefore it helps to keep teeth and gums healthy.  Because tea contains this natural source of fluoride, it can help prevent certain gum diseases and tooth decay. 

 

The Power of Green Tea

The Chinese have been using the healing effects of Green Tea for centuries, 4,000 years in fact. Only in the past 20 years other parts of the world began to take notice of this herbal treatment for headaches, depression, and beyond.

In 1994, a study was conducted that revealed Green Tea could possibly reduce esophageal cancer risks by 60%. Numerous other studies have been performed as well to establish the health benefits of consuming Green Tea and to learn why the herb is so healthy.

Clinical studies conducted over the years have found that Green Tea, or the herbs that create Green Tea, contain powerful antioxidants. Many believe that it may help prevent cancer cell growth, but to also selectively eliminate cancer cells. This is especially amazing because the powerful herb does not attack the healthy cells around the cancer cells.

Green Tea can also be efficient in lowering the bad cholesterol, LDL, levels while boosting the good cholesterol, HDL, levels.  By doing this, Green Tea is improving the ratio of good to bad cholesterol and possibly helping to prevent the onset of heart disease.

The Chinese have shown us many healing teas, but Green Tea is by far the best healing tea that has been introduced to us. Because Green Tea leaves are steamed, they are able to hold on to their potent antioxidants.

Green Tea as well as Fruit Blends, Rooibos, Herb Blends and Ayurvedic are fairly inexpensive and is well worth the cost for all of the potential healing effects and preventative abilities it has.

 

Drink Black Tea for a Healthier You

Black Tea, although made from the same plant as white and green tea, is almost completely different. Black Tea, unlike Green Tea and White Tea, is processed and fully oxidized.  Although from the same plant, what happens to the tea leaves after picking is what sets the three apart.

Black tea does not hold as many health benefits as Green Tea, but it still has retains enough to make it a smart choice for drinking. One reason why it’s considered the smart choice is simply because most studies have been only conducted on green tea. This is because it is the most consumed tea in the world.

The antioxidants in Black Tea can help protect against free radicals damage that generally leads to disease. Some properties of Black Tea have been shown to slow the growth of cancer cells but not effecting the growth of healthy cells.

The fact that the properties in the tea have the ability to selectively target the cancer cells and not the healthy cells is truly amazing.

 

Drinking Tea May Slow Down the Aging Process

Drinking Black Tea has also been said to slow down the aging process. Look at the anti-aging lotions and serums on the market today and you will find that many contain tea leaf extracts. Black Tea also is known to help rev up metabolism and fat burning. This is even more so when used in conjunction with caffeine and exercise.

To lower your LDL, bad cholesterol, studies have shown that drinking Black Tea is beneficial in doing so as well as helpful in increasing your HDL, healthy cholesterol. Drinking tea can help balance the ration of good and bad cholesterol and help to ward of heart disease.

If you are diabetic, drinking tea can aid in lowering glucose levels. Lowering your glucose levels will also lower your risk of conditions brought on by diabetes such as cataracts. Start drinking tea today for a healthier you tomorrow!

 

Rooibos

Rooibos in Afrikaans is translated as “red bush”.  This has a very sweet taste and it is frequently used as a base tea to blend tea.  It is rich in antioxidants and it is caffeine free. Here are a few health benefits of Rooibos:

 

·         Contains a host of vitamins and minerals such as copper, potassium zinc, calcium, potassium and manganese.

·         It is anti-viral, anti-mutagenic, anti-inflammatory and anti-carcinogenic activity.

·         Helps infants with sleeping problems colic, stomach cramps or sleeping problems.

·         Is great for skin because it has zinc and alpha hydroxy acid. This can be applied to the skin in order to reduce eczema, sunburn and with acne.

·         Healthy for people suffering from kidney stones because it doesn’t contain oxalic acid.

Rooibos has traditional medicinal uses in South Africa and is often used to help combat against asthma and allergies. It is a great substitute for people who don’t use dairy products because it has magnesium, calcium and fluoride to help build strong bones and healthy teeth.

Quick Tip: To make a quenching blend of iced tea, add slices of apple & lemon and a touch of honey.  For hot tea, no need to add the usual sugar or sweeteners, simply use agave or honey.

 

 

Ayurvedic  

Ayurvedic is a historical holistic system of medicine from India. It offers great benefits of maintaining good health.  Here are a few benefits:

It relaxes the Mind

It has no known Side Effects

It improves the Quality of life

It relieves Tension 

Herbal Blend

For centuries, herbal blend (often referred to as tisanes) have been used in Eastern medicines. Today, it is highly regarded in Western medicine.  Herbal blend contains the following health benefits:

·         Dandelion leaf, has blood, liver and gastrointestinal cleansing properties.

·         Lemon Verben and Lemon balm have been used as a cold remedies because of its soothing effect.

·         Hibiscus has reduced hypertension studies have shown.

As you can see, Herbal Blend is a great addition to a healthy diet. 

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