| Urad bean | ||||||||||||||||||
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 Dry urad beans | ||||||||||||||||||
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| Vigna mungo (L.) Hepper | ||||||||||||||||||
Urad, also referred to as urad dal, urd bean, urd, urid, black gram, black lentil or white lentil (Vigna mungo) is a bean grown in southern Asia. It is largely used to make dal from the whole or split, dehusked seeds. It, along with the mung bean was placed in Phaseolus but has been transferred to Vigna. It was at one point considered to belong to the same species as mung bean.
Black gram originated in India where it has been in cultivation from ancient times and is one of the most highly prized pulses of India. It has also been introduced to other tropical areas mainly by Indian immigrants.
It is an erect, sub-erect or trailing, densely hairy annual herb. The tap root produces a branched root system with smooth, rounded nodules. The pods are narrow, cylindrical and up to 6 cm long. The bean is boiled and eaten whole or after splitting into dal; prepared like this it has an unusual mucilaginous texture. Ground into flour or paste, it is also extensively used in culinary preparation like dosa, idli, vada, and papad.
It is very nutritious and is recommended for diabetics, as are other pulses. Though very beneficial in limited quantities excessive intake causes flatulence, which some sources claim can be prevented by adding a little asafoetida, pepper and ginger in the cultinary preparations. It is very popular in Punjabi cuisine of India and Pakistan where it is known as "maanh".
The product sold as "black lentil" is usually the whole urad bean or urad dal. The product sold as "white lentil" is the same lentil with the black skin removed.
Urad flour ( Uddina hittu )
Urad flour is made from urad. The flour is mixed with water to form a thick paste and seasoned called Uddina hittu in Kannada,this is eaten with steamed rice.
References
H.K.Bakhru (1997). Foods that Heal. The Natural Way to Good Health. Orient Paperbacks. ISBN 81-222-0033-8.