scholarly journals Gastrointestinal Evaluation of Tocte Protein Concentrate (Juglans neotropica Diels) and Their Chemical Composition

2019 ◽  
Vol 19 (1) ◽  
pp. 23-30
Author(s):  
Edgar Vilcacundo ◽  
Juan Gaibor ◽  
Gabriela Albá ◽  
Ruben Vilcacundo ◽  
Wilman Carrillo
Keyword(s):  
Chemical Composition ◽  
Protein Concentrate

scholarly journals STUDYING THE FACTORS EFFECTING THE PRODUCTION OF OKRA PROTEIN CONCENTRATE AND ISOLATE AND THEIR THERMAL PROPERTIES

2016 ◽  
Vol 47 (6) ◽  
Author(s):  
Kareem & Shakir
Keyword(s):  
Thermal Properties ◽  
Chemical Composition ◽  
Protein Denaturation ◽  
Protein Isolate ◽  
Extraction Time ◽  
Abelmoschus Esculentus ◽  
Protein Concentrate ◽  
Optimum Conditions ◽  
Precipitation Ph ◽  
Concentrate Preparation

The current study was included the use of okra seeds (Abelmoschus esculentus) for preparation of Defatted Okra Powder (DOP), Okra Protein Concentrate (OPC) and Okra Protein Isolate (OPI). Three methods were used to identify the best one for protein concentrate preparation . The concentrate with 72.1% protein was prepared by removal of seed peel, ground, defatting and treated with ethanol. The optimum conditions for  protein isolate preparation were 1:40 (water: DOP), extraction time of 75 minutes, extraction pH 9.0 and the precipitation pH was  4.0. This study also investigated the chemical composition to products that were 50.8,72.1,91.2% protein ,0.88,0.86,0.32 % fat ,8.45,9.94,2.67% ash and 35.23,12.37,3.26% carbohydrates For each of DOP ,OPC and OPI respectively. The amount of energy required for protein denaturation were 1.193, 0.5325, 0.236 J / g for DOP , OPC and OPI respectively.

scholarly journals PROPRIEDADES QUÍMICAS E CÔMPUTO QUÍMICO DOS AMINOÁCIDOS DA FARINHA E CONCENTRADO PROTÉICO DE FEIJÃO GUANDU (Cajanus cajan (L.) Millsp)

2000 ◽  
Vol 18 (2) ◽  
Author(s):  
IVONE YURIKA MIZUBUTI ◽  
LUIZ WALDEMAR DE OLIVEIRA SOUZA ◽  
OSWALDO BIONDO JÚNIOR ◽  
ELZA IOUKO IDA
Keyword(s):  
Amino Acids ◽  
Chemical Composition ◽  
Cajanus Cajan ◽  
Soluble Sugars ◽  
Extraction Procedure ◽  
Chemical Properties ◽  
Pigeon Pea ◽  
Protein Concentrate ◽  
Chemical Score ◽  
Sulphur Amino Acids

Esta pesquisa teve por objetivo investigar as propriedades químicas e cômputo químico dos aminoácidos da farinha e de concentrado protéico de feijão guandu (Cajanus cajan (L.) Millsp). A farinha apresentou composição química adequada em relação a outras leguminosas. O procedimento de extração aquosa de proteína, a partir de grãos de feijão guandu com 25,73% de proteína, permitiu a obtenção de concentrado protéico com 52,47% de proteína, em base seca, compreendendo concentração da ordem de 103,85%. O concentrado protéico de feijão guandu apresentou composição química adequada, sendo que cinzas e açúcares solúveis foram concentrados 122,17 e 21,86%, respectivamente, em relação ao grão. Os níveis de aminoácidos no concentrado protéico foram similares aos de farinha de guandu, porém, a metionina foi concentrada em 42,64%. O cômputo químico indicou que os aminoácidos limitantes primários na farinha e concentrado protéico foram os sulfurados totais. A composição química da farinha e do concentrado protéico de guandu indicou potencialidade para utilização de ambos como componentes de alimentos para seres humanos e animais. Abstract The aim of this work was the investigation of the chemical properties of Pigeon pea (Cajanus cajan) (L.) Millsp) flour and protein concentrate. The flour presented suitable chemical composition in comparison to other legumes. The water extraction procedure of protein, from Pigeon pea grains with 25,73% of protein allowed to obtain a protein concentrate with 52,47% of protein in dry basis, resulting an increase in order of 103,85%. The protein concentrate of Pigeon pea showed suitable chemical composition, having an increase of 122,17% in ashes and 21,86 % in soluble sugars in relation to the crude grain. The amino acids levels in the concentrate were similar to those in the flour, however there were an increase of 42,64% in methionine concentration. The chemical score suggest that the primary limiting amino acids in the flour and in the concentrate were the total sulphur amino acids. The chemical composition of the flour and concentrate of Pigeon pea showed perspectives of its utilization as feed components for humans and animals.

EXTRACTION OF SNAKEHEAD FISH [Ophiocephalus striatus (Bloch, 1793)] INTO FISH PROTEIN CONCENTRATE AS ALBUMIN SOURCE USING VARIOUS SOLVENT

2016 ◽  
Vol 78 (4-2) ◽  
Author(s):  
Abdul Rasyid Romadhoni ◽  
Eddy Afrianto ◽  
Rusky Intan Pratama
Keyword(s):  
Chemical Composition ◽  
Soluble Protein ◽  
The Other ◽  
Total Protein Content ◽  
Distilled Water ◽  
Protein Concentrate ◽  
Fish Protein ◽  
Yield Parameters ◽  
Randomized Design ◽  
Completely Randomized Design

Study aimed to determine the optimum solvent for extraction of soluble protein (albumin) and identify the chemical composition of snakehead fish protein concentrate. The method was experimental while the treatments were the variation of solvents: distilled water, HCl 0.1 M, and NaCl 0.9 %. Soluble protein (albumin) and yield parameters analyzed by using completely randomized design (CRD) which consist three treatments and four replications, the other parameters were described descriptively. The result showed that the highest soluble protein (albumin) (7.65 %) was produced by HCl 0.1 M solvent with 2.55 % yield, 10.76 % dry basis moisture content, 63.78 % total protein content, and 2.54 % fat content.

INVESTIGATION OF THE CHEMICAL COMPOSITION OF PEA GRAIN PROCESSING PRODUCTS FOR THE ENRICHMENT OF FLOUR PASTRY PRODUCTS

2021 ◽  
Author(s):  
Д.Ю. БОЛГОВА ◽  
Н.А. ТАРАСЕНКО ◽  
И.А. ЧУМАК
Keyword(s):  
Amino Acids ◽  
Chemical Composition ◽  
Essential Amino Acids ◽  
Protein Concentrate ◽  
Pea Protein ◽  
Biological Value ◽  
Grain Processing ◽  
Confectionery Products ◽  
The Many ◽  
Starch Fraction

Одним из многочисленных способов обогащения мучных кондитерских изделий является введение в их рецептуру натуральных ингредиентов растительного происхождения. Особый интерес для кондитерской отрасли представляет зерно гороха, богатое белком. Исследован химический состав продуктов переработки зерна гороха – концентрата горохового белка и крахмальной фракции зерна гороха. Оценена возможность их использования для обогащения мучных кондитерских изделий. Установлено, что концентрат горохового белка содержит 53–55% протеина, незаменимые аминокислоты, поэтому обладает высокой биологической ценностью. Перевариваемость аминокислот горохового белка составляет 94%. Крахмальная фракция зерна гороха содержит 62–70% крахмала. Продукты переработки зерна гороха имеют низкий гликемический индекс. Использование продуктов переработки зерна гороха позволит повысить пищевую и биологическую ценность мучных кондитерских изделий за счет увеличения содержания белка, незаменимых аминокислот, минеральных веществ и резистентного к перевариванию крахмала. One of the many ways to enrich flour confectionery products is the introduction of natural ingredients of plant origin into their formulation. Of particular interest for the pastry industry is pea grain, rich in protein. The chemical composition of pea grain processing products – pea protein concentrate and the starch fraction of pea grain has been studied. The possibility of their use for enriching flour pastry products is estimated. It was found that the pea protein concentrate contains 53–55% protein, essential amino acids, so it has a high biological value. The digestibility of amino acids of pea protein is 94%. The starch fraction of pea grain contains 62–70% starch. Pea grain processing products have a low glycemic index. The use of peagrain processing products will increase the nutritional and biological value of flour pastry products by increasing the content of protein, essential amino acids, minerals and starch resistant to digestion.

Nutritive value of pasture. III. The influence of the intensity of grazing on the composition and nutritive value of pasture herbage (Part I)

1928 ◽  
Vol 18 (2) ◽  
pp. 266-296 ◽  
Author(s):  
H. E. Woodman
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
The Other ◽  
Protein Concentrate ◽  
Crude Fibre ◽  
Pasture Grass ◽  
Main Trial ◽  
Feeding Value

The present investigation was undertaken with the object of ascertaining the effect of cutting at fortnightly instead of weekly intervals on the yield of pastures, and on the composition, digestibility and nutritive value of the herbage.The main trial was carried out on the 1925 light-land pasture. The plot was divided into 14 sub-plots, and one sub-plot was mown per day. The whole plot, therefore, was cut over once per fortnight during the season. The results in respect of yield, composition and nutritive value were compared with corresponding results obtained on the same pasture plot under a system of weekly cuts during 1925.A second trial was carried out on sub-plots 2 and 3 of the 1926 heavy-land pasture, one sub-plot being cut weekly and the other fort-nightly. The work in this case was restricted to securing comparative data in respect of yield and composition of herbage.The results from both trials lead to the conclusion that the differences in chemical composition, both organic and inorganic, between pasture grass cut at weekly and fortnightly intervals are inconsiderable. The dry matter of the fortnightly-cut grass is extremely rich in crude protein and contains, in comparison with grass cut at the hay stage of maturity, a low percentage of crude fibre. Moreover, these characteristics are retained, by systematic cutting at fortnightly intervals, over the entire season.The results of the digestion trials justify the conclusion that the dry matter of the pasture herbage grown under a system of fortnightly cutting is a protein concentrate equal in digestibility and nutritive value to that obtained by weekly cutting. There is no significant running off in respect of composition and feeding value during the second week of growth. At the end of a fortnight the herbage still consists of the same immature, non-lignified. tissue as it was at the end of a week's growth.

scholarly journals Determination of the chemical composition and functional properties of shrimp waste protein concentrate and lyophilized flour

2012 ◽  
Vol 36 (2) ◽  
pp. 189-194 ◽  
Author(s):  
Olivaldo Lacerda Brasileiro ◽  
José Marcelino Oliveira Cavalheiro ◽  
João Paulo de Sousa Prado ◽  
Alinne Gouveia dos Anjos ◽  
Thais Tereza Brandão Cavalheiri
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Functional Properties ◽  
Raw Material ◽  
Protein Concentrate ◽  
Shrimp Waste ◽  
Significant Difference ◽  
Seafood Industry ◽  
Shrimp Head ◽  
Shrimp Wastes

Wastes from the seafood industry can be easily processed into products with new forms of use. The present study was aimed at determining the chemical composition and functional properties of shrimp waste protein concentrate and lyophilized flour. The raw material used in this study consisted of waste (head) of Litopenaeus vannamei. The protein concentrate was obtained by ethanolic extraction, being subsequently submitted to drying in oven at 70° C, while the flour was obtained by lyophilization of shrimp wastes. Moisture, ash, protein and calcium contents showed significant difference between fresh shrimp head waste samples (IN) and protein concentrate and lyophilized flour samples. The protein content for protein concentrate (PC) and lyophilized flour (LF) showed significant increase in relation to protein content in the waste (IN), thus showing that the process for obtaining the protein concentrate was efficient.

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