Effects of supplementing ragi (Eleusine coracana) diets with lysine or leaf protein on the growth and nitrogen metabolism of children

Abstract

I. Diets based on ragi (EZeusine corucum) (I) were supplemented with L-lysine monohydrochloride (2) to provide 0.50 g additional lysine per day, or with lucerne leaf protein (3) to provide the same amount of lysine as 2, or with sesame flour (4) to provide the same amount of protein as 3. The effects of such supplementation on the growth and nutritional status of twenty children fed on each diet were studied in a feeding trial lasting for 6 months. Nitrogen retention and apparent digestibility of the diets were also studied at one stage during the feeding trials.2. Supplementing ragi diets with any of the materials brought about improvement in all nutritional responses, i.e. height, weight, general nutritional status, apparent digestibility and N retention. The diet supplemented with leaf protein led to the greatest response in growth, as measured by increase in height and weight, followed by those supplemented with lysine and sesame flour in that order.3. The apparent digestibility of the lysine-supplemented diet was lower than those of the diets supplemented with leaf protein and sesame flour.4. The differences in N retention between the children on the three supplemented diets were not significant.5 . The most important observations were that, although lysine as a sole supplement improved the quality of ragi diets, the leaf protein was superior to it because it improved the quality and increased the content of protein in the diet, and that the sesame flour, in spite of increasing the protein content, did not provide adequate lysine.

An Alfalfa Protein Concentrate from Four Cultivars at Three Growth Stages1

“…Major effort has been on characterization of the alfalfa pro-272 tein concentrate. The nutritive quality of leaf proteiin for infants was described (6,18). The presence of toxic phenols that inhibit leaf protein digestion was diiscussed (15), Alfalfa has been compared with otht~r crops for protein production (3,17).…”

Vegetables and Vegetable Products

“…The diets of boys in an institution were supplemented with protein contained either in sesame flour or LP (Doraiswamy et al 1969). Growth, and N absorption and retention were nearly the same when half the protein in a milk supplement was replaced by LP as when all the protein was supplied by milk.…”

Problems encountered in the community-based production of leaf concentrate as a supplement for pre-school children in Sri Lanka

“…In these trials relatively sophisticated techniques were used to process alfalfa and lucerne, and communities were not directly involved in the processing (Doraiswamy et al, 1969;Kamalanathan et al, 1975;Devadas et al, l980,1981aDevadas et al, l980, , 1981bDevadas et al, l980, , 1981cShah etal., 1981;Devadas et al, 1984;Mathur, 1986;Mathur et al, 1989).…”