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A specific enzymatic procedure for the determination of neurotoxic components (derivatives of L-alpha,beta-diaminopropionic acid) in Lathyrus sativus.

IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore

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Title A specific enzymatic procedure for the determination of neurotoxic components (derivatives of L-alpha,beta-diaminopropionic acid) in Lathyrus sativus.
 
Creator Rao, D. R.
Hariharan, K.
Vijayalakshmi, K. R.
 
Subject 17 Toxicology
22 Legumes-Pulses
 
Description Lathyrus satiVU8 seeds are used to adulterate some of the common dietary pulses such as Cicer arietinum (Bengal gram) and Cajanus cajan (Red gram) in India despite food laws. Chromatographic or other procedures available for detection of the neurotoxic or other components in Lathyrus sotivus are nonspecific. In the present method, the neurotoxic components (derivatives of L-a.l3-diaminopropionic acid) are separated by cation exchange chromatography and subjected diamito acid hydrolysis. The L-a.I3-diaminopropionic acid formed was determined using the specific enzyme diaminopropionate-ammonia lyase. As little as 50 nm (5 ~g) of L-a,l3-diaminopropionic acid can be detected by the present method. The new procedure determines all acid-labile forms of bound L-a•.B-diaminopropionic acid and extracts of Cit:er arietinum and Cajanus cajun do not interfere in the procedure.
 
Date 1974
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/2596/1/Journal%20of%20Agricultural%20and%20Food%20Chemistry%2C%20Volume-22%286%20%281974%29%201146-1148.pdf
Rao, D. R. and Hariharan, K. and Vijayalakshmi, K. R. (1974) A specific enzymatic procedure for the determination of neurotoxic components (derivatives of L-alpha,beta-diaminopropionic acid) in Lathyrus sativus. Journal of Agricultural and Food Chemistry, 22 (6). 1146-1148, 14 ref..