Nutritional Evaluation of Leaf Protein Extracted from Three Aquatic Plants

Abstract

Proteins extracted from the leaves of Alternanthera philoxeroides, Lemna minor, and Pistia stratiotes were evaluated for their nutritional quality using rat feeding experiments. It was found that a 3% level of supplementation of leaf protein extracted from L. minor and P. stratiotes significantly improved the nutritive value of a wheat flour diet, thereby indicating that they could be used as supplements in feeds or foods to improve the quality as well as protein levels of deficient diets. Keywords: Aquatic weeds; leaf protein; rat experiments

Bioaccessibility versus Bioavailability of Essential (Cu, Fe, Mn, and Zn) and Toxic (Pb) Elements from Phyto Hyperaccumulator Pistia stratiotes: Potential Risk of Dietary Intake

“…Water lettuce can possibly be used to produce Se-enriched plants for animal nutrition . Moreover, leaf protein extracted form PS leaves significantly improves the nutritional value of a protein deficient diet in ruminants, monogastric livestock, and humans, because its digestibility ( in vitro as well as in vivo ) is even higher than that of other aquatic weeds. , Finally, fibrous byproducts from protein extraction could be utilized as an additional food for ruminants. Because PS has been the subject of miscellaneous studies, the basic nutritional values of this plant from former studies as well as from our study are listed in Table .…”

The growth response of Alternanthera philoxeroides in a simulated post-combustion emission with ultrahigh [CO2] and acidic pollutants

“…We believe A. philoxeroides is an appropriate indicator species for the aim of our study because: (1) it is a convenient plant material for ecotoxicological investigations, and has been well used to examine plant response to environmental pollutions (e.g. heavy metals and salinity, Bolanos and Longstreth, 1984;Naqvi and Rizvi, 2000;Deng et al, 2006;Wang and Qin, 2006;Ding et al, 2007); (2) A. philoxeroides was introduced in many countries as forage crop and has proved nutrient value for food supplement of stock or human (Dewanji, 1993;Bhatta and Das, 1996;Dewanji and Matai, 1996), so it shares some characters with usual crop species; (3) A. philoxeroides is a widely spread global species and displays niche overlap with some important crops (e.g. rice); finally, (4) the Amaranthaceae family, represented by A. philoxeroides, includes some important crops, such as beet and spinach.…”

Effect of technological processing and preservation method on amino acid content and protein quality in kale (Brassica oleracea L. var. acephala) leaves

“…The nutritional value of protein in food depends above all on the amounts and proportions of essential amino acids. According to Dewanji and Matai,44 leaf vegetables are a good source of amino acids. Compared with the standard,14 the limiting amino acids in raw kale leaves were: lysine (CS 96), isoleucine (CS 97) and cystine with methionine (CS 83), and in the remaining products also valine (CS 77–96) and leucine (CS 90–99) (Table 5).…”