Abstract
Lablab [Lablab purpureus (L.) Sweet], a relatively unknown crop in the United States of America, is understood to be adapted to Southern USA. Even though, previous studies conducted in Virginia have indicated that Lablab can be produced in Virginia as a forage crop, composition of lablab seed produced in Virginia is unknown. To alleviate this limitation, seeds of seventeen lablab lines from a replicated field study, that was conducted for two years, were analyzed for concentrations of fatty acids and sugars. Results indicated that genotypes had mostly significant effects on concentrations of fatty acids and sugars. Prominent fatty acids in lablab seeds, grown in Virginia (USA), were linoleic (53.5%), palmitic (15.8%), and linolenic (14.1%). Mean saturated and total unsaturated fatty acids in lablab seeds were 22.2 and 77.6%, respectively. Mean concentrations of sucrose, fructose, and glucose concentrations in lablab seed were 1.45, 0.42, and 0.78 g per 100 g meal. Mean concentrations of total non-nutritive sugars (Raffinose+Stachyose+Verbascose) in lablab seed were 4.96 g per 100 g meal. Correlations between several nutritional quality traits in lablab seed were observed to be significant. A comparison of nutritional quality of lablab seed with literature values of black bean, navy bean, kidney bean, pinto bean, and pea indicated that lablab has potential as a new food legume for United States of America.
Highlights
Lablab [Lablab purpureus (L.) Sweet] is a relatively unknown crop in the United States of America
As per the information available at University of Agricultural Sciences (Bangalore, India), a site well known as source of information for this crop, lablab is usually known as Dolichos bean, Hyacinth bean, Bonavist bean, Seim bean, Lablab bean, Egyptian kidney bean, Indian bean, Common bean, Field bean, Pendal bean, Pole bean, Waby bean
Sugars were extracted from ground sample (1 g) and analyzed by HPLC following the methods optimized by Johansen et al (1996)
Summary
Lablab [Lablab purpureus (L.) Sweet] is a relatively unknown crop in the United States of America. As per the information available at University of Agricultural Sciences (Bangalore, India), a site well known as source of information for this crop, lablab is usually known as Dolichos bean, Hyacinth bean, Bonavist bean, Seim bean, Lablab bean, Egyptian kidney bean, Indian bean, Common bean, Field bean, Pendal bean, Pole bean, Waby bean (http://www.lablablab.org). It is one of the most ancient crops among cultivated plants, found in archaeo-botanical finds in India prior to 1500 BC jas.ccsenet.org. Objective of the current research with lablab was to characterize nutritional quality of lablab seed produced in Virginia to its’ potential use as food and feed relative to other food legumes
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