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Cloves nutrition facts

Cloves are one of the highly prized spices, widely recognized all over the world for their medicinal and culinary qualities. The spice buds are actually the "flower buds" from an evergreen rainforest tree native to Indonesian "spice islands".

Botanically, clove-spice belongs to the family of Myrtaceae, in the genus; Syzygium, and scientifically named as Syzyigium aromaticum.

clove buds green
Immature green clove buds

clove buds
Clove buds

At their early stages of development, flower buds are pale in color which gradually turn into green, and, finally, develop into bright-red clove buds at the time of harvesting. The buds generally picked up by hand when they reach 1.5-2 cm in length, sundried and graded before dispatching to the markets.

Structurally, each bud consists of a long calyx; terminating into four spreading sepals and four unopened petals. These closed petals develop into a small ball (dome) at the top. The sweet aroma of cloves comes from an essential oil, eugenol, in them.

Medicinal properties and health benefits of cloves

  • The active principles in the clove are known to have antioxidant, antiseptic, local anesthetic, anti-inflammatory, rubefacient (warming and soothing), carminative and anti-flatulent properties.

  • The spice contains health benefiting essential oils such as eugenol. It is a phenylpropanoids class of chemical compound which gives pleasant, sweet aromatic fragrances to the clove-bud. Eugenol has local anesthetic and antiseptic properties, hence; useful in dental care essentials as well as in treatment procedures.

  • The other important constituents in this spice include:

    essential oils: acetyl eugenol, β-caryophyllene, and vanillin, maslinic acid;

    tannins: gallotannic acid, methyl salicylate (painkiller);

    the flavonoids: eugenin, kaempferol, rhamnetin, and eugenitin;

    Triterpenoids: such as oleanolic acid, stigmasterol, and campesterol

    also, several sesquiterpenes.

  • The active principles in the cloves increase the gut motility and digestion power through improved gastrointestinal enzyme secretions. Thus, it helps relieve indigestion and constipation problems.

  • The spice also contains a good amount of minerals like potassium, manganese, iron, selenium and magnesium. Potassium is an essential electrolyte of cell and body fluids that helps control heart rate and blood pressure. The human body uses manganese as a co-factor for the antioxidant enzyme, superoxide dismutase.

  • Further, the spice buds contain very good amounts of vitamin A and beta-carotene levels. These compounds are known to have antioxidant properties. The body also requires vitamin-A for maintaining healthy mucosa, skin and for healthy vision. Consumption of natural foods rich in flavonoids helps to protect the body from lung and oral cavity cancers.

  • Additionally, this spice is a good source of vitamin-K, vitamin-B6 (pyridoxine), thiamin (vitamin B-1), vitamin-C and riboflavin. Consumption of foods rich in vitamin-C helps the body develop resistance against infectious agents and scavenge harmful oxygen-free radicals.


See the table below for in depth analysis of nutrients:

Cloves (Sygizium aromaticum), ground, Nutritive Value per 100 g.

(Source: USDA National Nutrient data base)
Principle Nutrient Value Percentage of RDA
Energy 47 Kcal 2%
Carbohydrates 10.51 g 8%
Protein 3.27 g 6%
Total Fat 0.15 g 0.5%
Cholesterol 0 mg 0%
Dietary Fiber 5.4 g 14%
Vitamins
Folates 68 µg 17%
Niacin 1.046 mg 6.5%
Pantothenic acid 0.338 mg 7%
Pyridoxine 0.116 mg 9%
Riboflavin 0.066 mg 5%
Thiamin 0.072 mg 6%
Vitamin A 13 IU 0.5%
Vitamin C 11.7 mg 20%
Vitamin E 0.19 mg 1%
Vitamin K 14.8 µg 12%
Electrolytes
Sodium 94 mg 6%
Potassium 370 mg 8%
Minerals
Calcium 44 mg 4%
Copper 0.231 mg 27%
Iron 1.28 mg 16%
Magnesium 60 mg 15%
Manganese 0.256 mg 11%
Phosphorus 90 mg 13%
Selenium 7.2 µg 13%
Zinc 2.32 mg 21%
Phyto-nutrients
Carotene-ß 8 µg --
Crypto-xanthin-ß 0 µg --
Lutein-zeaxanthin 464 µg --

Selection and storage

Clove buds can be readily available year around in the spice markets. Good quality buds should release sweet fragrance when squeezed between the thumb and index fingers. In the store, buy whole buds instead of powder since oftentimes it may contain adulterated spicy powders. The buds should be wholesome with stem and sepals, and compact.

Whole cloves should be stored in a cool dark place in close containers for many months and can be milled using "hand mill" as and when required. Ground/powder clove should be stored in the refrigerator in airtight containers and should be used as early as possible since it loses its flavor quickly.


Medicinal uses

  • The essential oil, eugenol in this spice has been in therapeutic use in dentistry as a local anesthetic and antiseptic for teeth and gum.

  • Eugenol also has been found to reduce blood sugar levels in diabetics, but further detailed studies required to establish its benefits.

  • Its decoction is sometimes used in treating flatulence and indigestion in traditional medicine preparations.

  • It is also thought to have a natural anti-parasite (kills intestinal worms) function.

  • The essential volatile oils function as a rubefacient, meaning that it irritates the skin and expands the blood vessels, increasing the flow of blood to make the skin feel warmer, making it a popular home remedy for arthritis and sore muscles, used either as a poultice or in hot baths.

  • Clove oil is also used in aromatherapy.


Culinary uses

In order to keep the fragrance and flavor intact, clove is generally grounded just before preparing dishes and added at the last moment in the kitchen, since prolonged cooking results in evaporation of its essential oils.

  • This popular spice has been used in the preparation of many regular dishes in Asian and Chinese cuisine since ancient times. Along with other spices like pepper, turmeric, ginger, etc. is being used in marinating chicken, fish, and meat.

  • Some of Indian vegetarian, chicken and rice dishes (biryani) contain cloves, and in the Middle East, it is used in meat and rice dishes.

  • The spicy buds also feature in the preparation of soups, barbecue sauces, pickling and as one of the ingredients in curry powders.


Safety profile

Consumption of dishes prepared with a large quantity of clove can cause gastrointestinal irritation, central nervous system disorders. Individuals with stomach ulcers, ulcerative colitis, and diverticulitis conditions should avoid food prepared with this spice. Eating cloves is also avoided during pregnancy.(Medical disclaimer)



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Further reading:

1. USDA National Nutrient Database.

2. Gernot-Katzer's spice pages.


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