Everything about Agave Tequilana totally explained
Blue agave, the
tequila agave of the
Agave tequilana species, is an
agave plant that's an important economic product of
Jalisco state in
Mexico due to its role as the base ingredient of
tequila, a popular
alcoholic drink.
The tequila agave grows natively in Jalisco, favoring the high altitudes of more than 1,500 m and sandy soil. Commercial and wild agaves have very different life cycles. Both start as a large
succulent, with spiky fleshy leaves, which can grow to over two meters in length. Wild agaves sprout a shoot when about five years old which grows into a stem up to five metres and topped with yellow flowers. The flowers are pollinated by a native
bat (
Leptonycteris nivalis) and produce several thousand seeds per plant. The plant then dies. The shoots are removed when about a year old from commercial plants to allow the heart to grow larger. The plants are then reproduced by planting these shoots; this has led to a considerable loss of genetic diversity in cultivated blue agave. It is rare for one kept as a a houseplant to flower; nevertheless, a fifty year old blue agave in
Boston has grown a 10
m (30
ft) stalk requiring a hole in the greenhouse roof and flowered sometime during the summer of 2006.
Tequila is produced by removing the heart of the plant in its twelfth year, normally weighing between 35–90 kg (77–198 lb). This heart is stripped of leaves and heated to remove the sap, which is fermented and distilled. Other beverages like
mezcal and
pulque are also produced from blue and other agaves by different methods (though still using the sap) and are regarded as more traditional.
Over 200 million blue agave plants are grown in several regions of Mexico, but in recent years the ability of farmers to meet demand has been in question. Through poor breeding practices, blue agave has lost resistance to
fusarium fungus and several other diseases which currently render 25%-30% of the plants unusable for consumption.
Researchers from Mexico's
University of Guadalajara believe blue agave contains compounds that may be useful in carrying drugs to the
intestines to treat diseases such as
Crohn's disease and
colitis.
TMA
Production of this important cash crop in Mexico has been hindered in the early 2000s by a number of
rot-related problems, collectively referred to as TMA (
tristeza y muerte de agave, "wilting and death of agave"). As of 2002, 23% or more of the plants produced in Jalisco were affected.
Part of the problem is a group of diseases spread by the
larvae of the
weevil Scyphophorus acupunctatus Gyll. (Coleoptera:Curculinidae). Also, the fungus
Thielaviopsis paradoxa prevents younger plants from forming roots.
According to a 2004 study, additional pathogens,
Erwinia carotovora,
Enterobacter agglomerans,
Pseudomonas mendocina, and
Serratia sp. are responsible for continued rot.
Further Information
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