Showing posts from April, 2010

Hotel Management Course Offered by SISTM

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• Beedi are thin, often flavored, south Asian cigarettes made of tobacco wrapped in a tendu leaf, and secured with colored thread at one end.
• Chewing tobacco is one of the oldest ways of consuming tobacco leaves. It is consumed orally, in two forms: through sweetened strands, or in a shredded form. When consuming the long sweetened strands the tobacco is lightly chewed and compacted into a ball. When consuming the shredded tobacco, small amounts are placed at the bottom lip, between the gum and the teeth, where it is gently compacted, thus it can oftentimes be called dipping tobacco. Both methods stimulate the salve glands, which led to the development of the spittoon.
• Cigars are tightly rolled bundle of dried and fermented tobacco which is ignited so that its smoke may be drawn into the smoker's mouth.
• Cigarettes are a product consumed through the inhalation of smoke and manufactured out of cured and finely cut tobacco leaves and reconstituted tobacco, often combined wit…


Curing and subsequent aging allows for the slow oxidation and degradation of carotenoids in tobacco leaf. This produces certain compounds in the tobacco leaves very similar and give a sweet hay, tea, rose oil, or fruity aromatic flavor that contribute to the "smoothness" of the smoke. Starch is converted to sugar which glycates protein and is oxidized into advanced glycation endproducts (AGEs), a caramelization process that also adds flavor. Inhalation of these AGEs in tobacco smoke contributes to atherosclerosis and cancer.[27] Levels of AGE's is dependent on the curing method used.
Tobacco can be cured through several methods which include but are not limited to:
• Air cured tobacco is hung in well-ventilated barns and allowed to dry over a period of four to eight weeks. Air-cured tobacco is low in sugar, which gives the tobacco smoke a light, sweet flavor, and high in nicotine. Cigar and burley tobaccos are air cured.
• Fire cured tobacco is hung in large barns where…


Tobacco is cultivated similar to other agricultural products. Seeds were at first quickly scattered onto the soil. However, young plants came under increasing attack from flea beetles (Epitrix cucumeris or Epitrix pubescens), which caused destruction of half the tobacco crops in United States in 1876. By 1890 successful experiments were conducted that placed the plant in a frame covered by thin fabric. Today, tobacco is sown in cold frames or hotbeds, as their germination is activated by light.
In the United States, tobacco is often fertilized with the mineral apatite, which partially starves the plant of nitrogen to produce a more desired flavor. Apatite, however, contains radium, lead 210, and polonium 210—which are known radioactive carcinogens.
After the plants have reached relative maturity, they are transplanted into the fields, in which a relatively large hole is created in the tilled earth with a tobacco peg. Various mechanical tobacco planters where invented in the nineteenth…


There are many species of tobacco, which are encompassed by the genus of herbs Nicotiana. It is part of the nightshade family (Solanaceae) indigenous to North and South America, Australia, south west Africa and the South Pacific.
Many plants contain nicotine, a powerful neurotoxin that is particularly harmful to insects. However, tobaccos contain a higher concentration of nicotine than most other plants. Unlike many other Solanaceae they do not contain tropane alkaloids, which are often poisonous to humans and other animals.
Despite containing enough nicotine and other compounds such as germacrene and anabasine and other piperidine alkaloids (varying between species) to deter most herbivores, a number of such animals have evolved the ability to feed on Nicotiana species without being harmed. Nonetheless, tobacco is unpalatable to many species and therefore some tobacco plants (chiefly Tree Tobacco, N. glauca) have become established as invasive weeds in some places.

There are a number…


The Spanish word "tabaco" is thought to have its origin in Arawakan language, particularly, in the Taino language of the Caribbean. In Taino, it was said to refer either to a roll of tobacco leaves (according to Bartolome de Las Casas, 1552), or to the tabago, a kind of Y-shaped pipe for sniffing tobacco smoke (according to Oviedo; with the leaves themselves being referred to as Cohiba).[7]
However, similar words in Spanish and Italian were commonly used from 1410 to define medicinal herbs, originating from the Arabic tabbaq, a word reportedly dating to the 9th century, as the name of various herbs


Tobacco is an agricultural product processed from the fresh leaves of plants in the genus Nicotiana. It can be consumed, used as an organic pesticide, and in the form of nicotine tartrate it is used in some medicines. In consumption it may be in the form of smoking, chewing, snuffing, dipping tobacco, or snus. Tobacco has long been in use as an entheogen in the Americas. However, upon the arrival of Europeans in North America, it quickly became popularized as a trade item and as a recreational drug. This popularization led to the development of the southern economy of the United States until it gave way to cotton. Following the American Civil War, a change in demand and a change in labor force allowed for the development of the cigarette. This new product quickly led to the growth of tobacco companies until the scientific controversy of the mid-1900s.
There are many species of tobacco, which are all encompassed by the plant genus Nicotiana. The word nicotiana (as well as nicotine) was…