title: [Protein concentrate of the manioc leaf. Extraction, chemical analyses and supplementation with amino acids].
abstract: The purpose of this work was to prepare a manioc leaf protein concentrate introducing some new procedures on the known methods developed by other authors. Chemical composition and biological quality (PER, Digestibility, NPU and BV) of the protein content were measured for diets prepared with leaf protein concentrate and leaf. Histological studies were carried out in some organs. The protein concentrate and the powdered leaves were supplemented with methionine and lysine, alone and combined. The protein content (N X 6.25) of the concentrate and the leaf was 34% and 25.2%, respectively. Addition of either methionine or lysine alone did not improve the growth of the rats. A better response was obtained when both methionine and lysine supplemented the test materials as indicated by the biological criteria, protein efficiency ratio (PER) true digestibility (TD) and biological value (BV). Histological tests for the organs examined, proved to be normal.
mesh_terms: D000596:Amino Acids / Q000008:administration & dosage; D000818:Animals; D001835:Body Weight; D005527:Food, Fortified; D008239:Lysine / Q000494:pharmacology*; D002365:Manihot; D008715:Methionine / Q000494:pharmacology*; D009753:Nutritive Value; D010940:Plant Proteins / Q000302:isolation & purification* / Q000378:metabolism; D010945:Plants, Edible; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000596:Amino Acids; D010940:Plant Proteins; D008715:Methionine; D008239:Lysine
vernacular_title: Estudo do concentrado proteico da folha de mandioca. Obtencão, analises químicas e suplementação com amino acidos.