Isolation and composition of proteins from leaves of plants grown in Ceylon

✍ Scribed by S. Sentheshanmuganathan; Susan Durand

• Publisher: John Wiley and Sons
• Year: 1969
• Tongue: English
• Weight: 613 KB
• Volume: 20
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740201008

✦ Synopsis

Proteins were isolated from fresh leaves of twelve plant species grown in Ceylon. Contents of total N, nonprotein N and protein N in the original leaves, and protein N in the isolated protein were determined and the percentage extractability of N was calculated. Analyses of the protein isolates for total N, ash, Ca, Fe and all the amino acids are reported.

The protein isolates were rich in all but one of the amino acids namely methionine. However, the lysine contents were greater than in some standard proteins. The protein scores were comparable to the standard proteins.

The percentage extractability ranged from 9.3 to 91 %. A high proportion of the nitrogen was found as non-protein.

It was concluded that the proteins from the leaves examined could provide a dietary supplement.