Plant profile: Turmeric – Curcuma longa

Plant profile: Turmeric – Curcuma longa

Turmeric (Curcuma longa L.)

Synonyms:

Curcuma (Sp. It. Fr.), acafrao da India (port.), geelwortel (Dutch), kurkum Arab. Manjano (East Africa (KiSwahili), haldi (Hindi) manjal (Tamil), kunyit (Indonesia) temu kunyit (Malaysian), iyu-chin (Chin.)

Description:

Turmeric belongs to the family of Zingiberaceae, the ginger family. Anybody familiar with this family of plants will readily recognise this kinship even upon superficial examination. Turmeric is an upright, relatively short and stout plant that rarely reaches more than about 1 meter in height. Its leaves are elongated, dark green and pointed, often curling slightly along the margins. Each individual leaf rises directly from the fleshy rhizome at the base. The rhizome appears scaly, due to the remaining rings of previous leaves. Its outer skin is brownish, but its flesh is deep orange-yellow inside. Rhizomes grow to about 5-8 cm x 1.5 – 2.5 cm. When bruised they omit a spicy scent. The flower stalk will appear among the leaves, also emerging directly from the rootstock. The cylindrical spike, which may be partially protected by a leaf sheath, bears the whitish-pink flowers, which spiral around the spike. Each flower is protected by a little ‘pocket’ called bracteoles. Turmeric mostly propagates vegetatively via its rhizome segments.

Habitat:

Turmeric probably originated in India and is thought to have derived from the wild species C. aromatica. The greatest variety of species is found in India, Sri Lanka, and the Eastern Himalayas. It is now common throughout Southeast Asia, China, and southern Australia and it is widely cultivated throughout the wet tropics, where it has naturalised. The lion share of all the Turmeric that is produced worldwide is grown and consumed domestically in India.

Etymology:

The name of the genus, ‘curcuma’ is derived from the Arab word ‘kurkum’. Most likely it found its way to the Occident with the caravans of Arab traders. Its Sanskrit name is ‘haridra’, which means ‘yellow wood’.

raw turmeric rhizomes

History and Uses:

Turmeric has a long history of use, not just as a spice, but also as a healing agent and a magical herb. As a spice, it is best known as one of the principal components of curry powder, to which it dons the characteristic yellow colour. Curry powder is often mistakenly believed to refer to a specific spice blend or to be derived from a single plant. Nothing could be further from the truth! There are dozens of curry blends that all vary in their composition. The best are those that are prepared from scratch for each individual dish. These spice blends are indeed a far cry from the generic mixtures found on supermarket shelves.

Here is one of many possible Curry powder blends:

  • 3oz turmeric
  • 4oz coriander (seed)
  • 1 oz black pepper
  • 1 oz ginger
  • ¼ oz cayenne pepper
  • ¼ oz cinnamon

This basic mix is often varied with cloves, cumin or cardamom. In India, fish is sometimes wrapped and cooked in fresh turmeric leaves to impart the characteristic flavour. As a spice, turmeric adds a warm, aromatic, slightly astringent note.

It is a carminative and stomachic that stimulates the digestive processes, soothing indigestion and reducing flatulence.

When Europeans first encountered turmeric they often falsely identified it as saffron. Although it makes a perfect food dye, its properties and flavour do not compare to those of saffron. In India turmeric is indeed widely used as a dye, especially for ritual foods that are offered to the Gods at the temples and as a textile dye (Buddhist robes are traditionally dyed with turmeric). Carbonate of soda helps to fix the dye, although it is not very permanent. Sometimes Turmeric is used as a cosmetic agent, and as make-up for weddings and other festive occasions. The food industry employs it as a colorant for cheese, sausage, and confectionery.

In folk-magic, Turmeric is linked to fertility. There may be a biochemical basis for this association, as medicinally it is used to regulate menstruation and to reduce menstrual cramps. It is also thought to have protective powers and is sometimes worn as a magical charm.

After harvesting, the root is cured for long-term storage. This will prevent them from sprouting new leaves. The traditional method of curing is to boil or steam the fresh rhizome in lime or sodium carbonated water. This cleans the root, stops all germination, gelatinises the starch and removes the earthy scent. After boiling, the rhizomes are dried in the sun and ground into powder. Modern preparation techniques use 20 g sodium bisulfite and 20 g hydrochloric acid per 45 kg of rhizomes, which are boiled in a kind of steam boiler. The result is a cleaner, yellow-tinted rhizome that is deemed ‘more attractive’ in commerce. The roots are then artificially dried, rather than sun-dried, which improves their quality and reduces the risk of fungal growth or other contaminants.

Medicinal uses

Parts Used: Rhizome

Harvesting Time: 7 – 9 months after planting (when the lower leaves turn yellow)

Active constituents: Volatile oils, terpene, curcumen, starch, albumen, curcumin (colorant) potassium, vitamin C

The essential oil of turmeric and the colour component are very light-sensitive and deteriorate quickly when exposed to light. Thus, it is essential to store the powder in a dark jar. A pale colour indicates that the active constituents have lost their potency. When purchasing turmeric pay attention to the packaging date as it rarely lasts for more than 3 months. Turmeric is insoluble in water, but soluble in alcohol. Preparing a tincture is, therefore, a good way to preserve the healing properties. When used in cooking, stir the powder into the hot oil before adding the other ingredients. This will transfer the flavours and benefits to the oil, which will then coat the other ingredients as they are added to the pan.

As its signature indicates, Turmeric is an excellent herb for the liver: It is used for treating jaundice and to stimulate the gallbladder. It is a great digestive aid and helps the body to break down and digest fatty foods. Clinical trials show that it reduces cholesterol levels. Turmeric also has germicidal properties. Its traditional indication for gastric ulcers may be due to its effectiveness in fighting the H. pylori bacteria, which has been identified as the major cause of gastric ulcers. (Munzenmaier 1997 )

In Ayurvedic medicine, turmeric is considered a ‘pitta’ substance due to its action on the digestive system, aiding the metabolic process and the absorption of nutrients. It is said to ‘stimulate the digestive fire’.

Some traditional healers use it as a remedy for treating cough or cook it with milk and other spices to ward off a cold.

Applied externally, in combination with Neem leaves, it said to be effective for treating ringworm and scabies. Traditionally it has also been employed in the treatment of eczema, leprosy and purulent inflammation of the eyes.

In Chinese medicine, it is indicated for shoulder pain, menstrual cramping, colic, and rheumatoid arthritis.

Recent studies have also found turmeric to be an effective agent to inhibit certain types of cancers. It has been administered both internally and externally to aid the healing of cancer lesions and scars. It is also used for reducing the odour of cancer.

A strong immune system is your best defense

A strong immune system is your best defense

Powerful immune-boosting foods you probably already have in your kitchen.

No matter what bacteria or viruses are floating around, a strong immune system is your best defence. But it is not always easy to keep it topped up. Stress, pollution, or close encounters with bugs that are floating around at the workplace, or in public spaces all contribute to the body’s defence system falling to sub-optimum levels.

Thankfully, there are things you can do to boost your body’s immune response and thus prevent disaster before it strikes. There are three key elements to an effective immune defence strategy:

1) Reduce stress levels

While short-term stress can actually boost the immune response, the daily grind wares it down. Severely. If you suffer from high levels of stress address this problem first. Take more breaks, make sure you sleep enough, try to worry less. Just inch away from that edge. It is called ‘self-care’. Try and extend the forgiveness and compassion you show towards other people also towards yourself. You too deserve a break once in a while.

2) Exercise, preferably out in nature

Exercise is a proven strategy that can reduce stress. But do it for its own sake, not to beat someone else’s or your own record. It should be fun, not stress. Exercising in the fresh air also gets the bugs out, improves circulation and respiration. And it works wonders for mental health.

3) Nutrition

Forget supplements. A nutritious and varied diet with plenty of naturally derived vitamins and minerals is the best support you can give your body. Denaturalised foods (over-processed, fast foods and the like) do not provide the nutrients your body needs. Worse, they deplete and weaken it. Organic foods are your best bet. Try to include smoothies or fresh-pressed juices in your daily diet. It’s a great way to take in a lot of nutrients without having to eat all day.

In the old days, it was customary to fast or at least to restrict certain kinds of foods during Lent, the six week period prior to Easter. During the winter and especially during the holidays, we tend to eat too much, and usually far too much of the wrong kinds of things. Fasting or eating light helps the body eliminate waste matter. Spring cleansing diets were also common. These include plenty of fresh early spring herbs such as Dandelion and Nettles while cutting out meat and animal products for a period of time. Few people follow this kind of regime now, but there are still ways to give your body extra nutritional support during the winter months.

Superfoods

How many times have you heard some exotic thing is THE BEST FOOD EVER, and that for sure it will cure every imaginable human malady? It’s the best thing since sliced bread until the next ‘miracle cure’ comes around. They are usually expensive and come from far away places…Can you smell the rat? Well, truth is, the best foods usually grow right on our doorstep and are neither exotic nor expensive. In fact, you probably have several on your kitchen shelf. Vitamin, A, C, E and D, Iron, Selenium and Zinc are the most important immune system nutrients. But instead of taking them in synthetic form, mixed with a bunch of unidentified filler substance, you would be much better off seeking out natural sources for these vital nutrients. The body often can’t absorb supplements properly, which means that your money often literally goes down the drain.

When there are bugs going around, use common sense: if you know that there is an outbreak in your area, don’t solicit it. Wash your hands frequently and don’t share water bottles and cutlery etc.

Prevention is the best medicine!

Be well and stay well!

Garlic

Some love it, some hate it, but almost no cuisine can do without. And just as well. Garlic is one of the healthiest items we can find in the kitchen. It really is a true superfood, Garlic packs a punch. Like other members of the onion family, it is rich in sulfurous compounds, which aid both the immune system and the cardiovascular system. The trace minerals manganese and selenium are important compounds that help the body in its fight against ‘free radicals’ and against inflammation. It has also been shown to fight bacteria. Including it in your diet on a regular basis is one of the most effective things you can do to improve your diet and to keep your immune system well-nourished.

Chilies

Not everybody can take hot chilies, but those who can attest to its superior power when it comes to sending ’bugs’ packing. It is not just another urban legend, either. Chilies really do fight inflammation. They also provide a good amount of vitamin C and A, which the body needs to fight inflammation. Additionally, they also support the cardiovascular system. They reduce blood cholesterol and triglycerides, and can also reduce blood insulin levels.

Ginger

A wonderfully warming spice with significant anti-oxidant properties, Ginger is a powerful anti-inflammatory. A hot lemon drink spiced with ginger and sweetened with honey is a wonderful, refreshing drink once a cold has set in. The spiciness induces sweating, which in turn can help to lower a fever. As regards the immune-system, Ginger owes its anti-inflammatory and free-radical scavenging effects to its essential oils.

Turmeric

This yellow spice is a well-known component of ready-mixed curry powders. In Ayurvedic medicine, it is much revered as a general tonic and immune-system boosting herb. In India, a drink called golden milk is a popular beverage used to ward off nasty bugs. Turmeric supports the eliminative systems of the body, in other words, it helps the liver to get rid of toxins. However, because it is quite potent in this respect, people with gall bladder obstruction (stones) should avoid it. Turmeric has a very complicated chemical composition and its effectiveness can’t be reduced to one particular component. Rather, it acts as an overall tonic, which also fights free radicals and reduces inflammation.

Broccoli & Co

The cabbage family produces not just one, but several of our healthiest vegetables. Good thing they are so readily available during the winter months when we need them most. Tied for the top position among their peers are Broccoli and Brussels sprouts, especially in the category of ‘highest vitamin C content’. Both of them are also rich in folate, but Kale wins when it comes to vitamin A. At the bottom of the line is, you can’t go wrong if you include these wholesome, nutritious vegetables in your dinner plan as often as possible.

Papaya

Granted. This tasty fruit from Central America is perhaps a bit more ‘exotic’ than the other ones on this list. But I am including it here anyway. If more people realised how incredibly healthy it is they would be fighting over it at the store. Rich in vitamin C and A, Papaya is rocket-fuel for the immune system. It is particularly tasty when sprinkled with fresh lime juice.

Rosehips

Rose hips are the fruit of the wild rose, and one of the richest sources of vitamin C and A. Rosehip tea is a wonderfully refreshing drink for the cold season, although I prefer home-made rose hip syrup. In certain specialty stores, you may also be able to find rosehip jam or preserve. No matter which way you consume them, they are a delicious way to boost your immune system and to help your body fight free radicals and inflammation.

Elderberries

In August you can spot them as small, blackberries that hang in big bunches from the Elder trees. Tiny though they are, they are packed with free-radical scavenging nutrients such as vitamin C and A as well as folate and iron, which help the body combat many different kinds of diseases. In winter, Elderberry syrup is a delicious, comforting beverage during the cold season, especially when spiced with ginger.

Lemons

It is no secret that lemons provide ample vitamin C. They also contain folate. These vitamins support the immune system and fight infection and free radicals. They also help to reduce inflammation. They are wonderfully refreshing and when spiced with ginger, honey, and cinnamon, make a wonderful beverage that can help to lower a fever and soothe inflamed mucous membranes. When taken right at the onset of a cold, at the first signs of a scratchy throat, high doses of vitamin C can really help to reduce the symptoms or even ward off that attack altogether.

Sesame and Pumpkin seeds

Included for their high zinc content, pumpkin and sesame seeds are not only a tasty addition to muesli, or salads, but they also support the immune system. Sesame seeds contain not only zinc but also selenium, copper, iron, vitamin B6 and vitamin E. Selenium is used by the thyroid, the gland that is most involved in producing immune-cells. Pumpkin seeds are also rich in various trace minerals, such as iron, copper, and zinc.

Pin It on Pinterest