Studies on the essential amino acid composition, protein fractions and biological value (BV) of some new varieties of rice

1978 ◽  
Vol 29 (3) ◽  
pp. 225-229 ◽  
Author(s):  
J. K. Chavan ◽  
S. K. Duggal
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Essential Amino Acid ◽  
Protein Fractions ◽  
Biological Value ◽  
New Varieties

Changes in the amino acid composition of grain during storage

2020 ◽  
Vol 29 (10) ◽  
pp. 60-65
Author(s):  
M.A. Yanova ◽  
◽  
I.V. Fedorovich ◽  
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Amino Acid Residue ◽  
Essential Amino Acid ◽  
Biological Value ◽  
Agricultural Enterprises ◽  
Low Level ◽  
Grain Crops ◽  
Low Rate

Samples of various grain crops (wheat, barley, oats) of agricultural enterprises of the Krasnoyarsk Territory in the central and western zones (LLC UCHHOZ MINDERLINSKOE "Sukhobuzimsky District, LLC ELEVATOR Uzhursky District, the composition of OJSC Iskra. It was determined that compared with wheat and barley oats are characterized by the highest content of the essential amino acid lysine, all crops have a low level of tryptophan. It was found that during storage of grain there was no significant change in the amino acid residue. acid composition, which indicates a low rate of the processes leading to a change in biological value. It was found that when storing grain in an elevator, the amino acid composition remains more valuable.

scholarly journals Amino acid composition and biological value of pea protein depending on cultivation techniques

2019 ◽  
Vol 102 (3) ◽  
pp. 117-125
Author(s):  
NI Voskobulova ◽  
◽  
AS Vereshagina ◽  
RSh Uraskulov ◽  
MYa Kurilkina ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Pea Protein ◽  
Biological Value ◽  
Cultivation Techniques

scholarly journals Justification of unconventional protein-containing raw materials for the construction of milk chocolate formulas with increased biological value

Vestnik MGTU ◽  
2020 ◽  
Vol 23 (3) ◽  
pp. 205-213
Author(s):  
N. V. Linovskaya ◽  
E. V. Mazukabzova ◽  
O. S. Rudenko ◽  
T. V. Savenkova
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Whey Protein ◽  
Acid Composition ◽  
Raw Materials ◽  
Whey Protein Concentrate ◽  
Protein Concentrate ◽  
Milk Chocolate ◽  
Biological Value

Milk chocolate is particularly popular with different age groups. It is characterized by low protein content with a large amount of fats and carbohydrates determining the food imbalance of the product. In conditions of high-grade animal proteins deficiency the selection of high-quality protein-containing ingredients for food production is very relevant. The aim of this work is to study the protein adequacy of various components of milk chocolate to enhance its biological value. The amino acid scale method has been used to assess the biological value of proteins; it is based on the determination of amino acid (chemical) score. It has been found that the limiting biological value amino acid for classical white raw ingredients of milk chocolate (cocoa products and milk powder) is methionine + cysteine. For constructing chocolate formulas with increased biological value it is advisable to use protein-containing raw materials (whey protein concentrate, oat flour, etc.) to compensate for the limiting amino acids. The indicator of amino acids utilitarianity of proteins of raw milk chocolate components has been calculated. On the basis of the utilitarian index we have established the coefficient of utilitarian of the amino acid composition of the raw materials characterizing essential amino acids' balance. We have determined the biological value of protein and the amino acid composition imbalance coefficient. It has been found that the amino acid composition of milk and whey protein concentrates is most balanced compared to the amino acid composition of traditional protein-containing raw components of milk chocolate. The limiting acid of whey protein concentrate is valine, which makes its use in the manufacture of chocolate products more attractive compared to milk protein concentrate (the limiting amino acid is methionine + cysteine). In the group of vegetable non-conventional raw materials oat and buckwheat flour are characterized by the best indicators of biological value. The amino acid adequacy of oat flour is comparable to the qualitative protein indicators of cocoa products, the limiting amino acid is lysine. Buckwheat flour is characterized by the smallest imbalance in amino acid composition, which distinguishes the proteins of this raw material with the highest degree of digestibility compared with the proteins of all the studied protein-containing components of milk chocolate.

scholarly journals Advanced Production Technology of Flour-Based Foods with Chlorella Concentrate

2020 ◽  
pp. 212-221
Author(s):  
Zenfira Bochkareva ◽  
Ekaterina Volshenkova
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Production Technology ◽  
Control Sample ◽  
Sensory Properties ◽  
Raw Material ◽  
Biological Value ◽  
Advanced Production ◽  
Industrial Samples

Introduction. Semi-finished products require various additives that increase shelf life, improve sensory properties, or decrease raw material costs. Unfortunately, most additives improve neither nutrition nor biological value of the finished product. The present research featured precooked thin pancakes fortified with a chlorella concentrate. This microalgal supplement with scientific-based healthy properties is a unique project of Russian developers. The chlorella concentrate possesses a balanced amino acid composition, vitamins, major nutrient elements, and dietary minerals. Therefore, it can improve the nutrient and biological value of the pancakes. Study objects and methods. The research featured laboratory and industrial samples of precooked pancakes. 3%, 6%, and 10% of the milk were replaced with chlorella concentrate. The quantitative ratio of the components was determined empirically to obtain pancakes of the optimal quality. The batter-making and baking technologies were traditional. The mixing of milk and chlorella concentrate caused no protein aggregation. Results and discussion. The obtained batter was similar with the control sample in viscosity. The sensory properties did not deteriorate. As the proportion of the concentrate increased, the color of the batter changed from pale green to bright green. The sample with 10% of chlorella concentrate had a distinct algae smell. After the milk was replaced with the chlorella concentrate in the amount of 3%, 6%, and 10%, the amino acid composition demonstrated the following changes. The amount of lysine increased by 4.36%, 8.54%, and 14.72%, respectively. The amount of tryptophan increased by 5.46%, 10.75%, and 18.37, respectively. The amount of methionine + cystine increased by 4.04%, 7.94%, and 13.61%, respectively. The introduction of chlorella concentrate raised the content of certain minerals and vitamins, e.g. iron, vitamins of β-carotene, and vitamin C. Conclusions. Chlorella concentrate improved the production technology of flour-based foods. Therefore, it helps to expand the range of this group of precooked products while improving their biological and nutrition value.

Biotechnological process for producing protein products from chickpeas with a high biological value

2021 ◽  
pp. 38-40
Author(s):  
Денис Сергеевич Куликов ◽  
Валентина Андреевна Гулакова ◽  
Валентина Васильевна Колпакова ◽  
Рузалия Владимировна Уланова
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Mass Fraction ◽  
Dry Matter ◽  
Biological Value ◽  
Protein Concentrates ◽  
Biotechnological Process ◽  
Food And Feed

Из зерна нута получены белковые концентраты пищевого и кормового назначения с массовой долей белка на сухое вещество 83,22±0,35 % и 54,22±0,46 % соответственно и сбалансированным аминокислотным составом. Protein concentrates for food and feed purposes were obtained from chickpea grains with a mass fraction of protein per dry matter of 83.22±0.35 % and 54.22±0.46 %, respectively, and a balanced amino acid composition.

Amino acid requirements of the growing meat rabbit 1. The amino acid composition of rabbit whole-body tissue — a theoretical estimate of ideal amino acid balance

1988 ◽  
Vol 47 (2) ◽  
pp. 297-301 ◽  
Author(s):  
P. J. Moughan ◽  
W. H. Schultze ◽  
W. C. Smith
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Essential Amino Acid ◽  
Theoretical Estimate ◽  
Body Tissue ◽  
Whole Body ◽  
Methionine Concentration ◽  
Amino Acid Requirements ◽  
Amino Acid Balance

ABSTRACTWhole-body amino acid composition was determined in six male and six female 53-day-old New Zealand White rabbits. There were no significant sex differences in whole-body amino acid compositition except for arginine and glycine where whole-body concentrations (g/16 g N) were significantly lower in the females (P < 0·05). Overall mean whole-body essential amino acid levels (relative to lysine = 100 units) were methionine = 20; cystine = 41; histidine = 50; phenylalanine = 65; tyrosine = 50; threonine = 64; leucine = 112; isoleucine = 51; valine = 62; arginine = 109. The lysine concentration of rabbit whole-body tissue was 6·12 g/16 g N. There was close agreement between rabbit whole-body amino acid composition and corresponding published values for the rat and pig, although the rabbit whole-body cystine was high and methionine concentration low compared with the rat or pig. The rabbit whole-body amino acid pattern can be regarded as approximating an ideal balance of dietary amino acids and as such indicates discrepancies in current recommendations on the essential amino acid requirements for growth in the meat rabbit.

Nutrition of the bacon pig. XIX. The requirement of the bacon pig for certain essential amino acids

1958 ◽  
Vol 50 (2) ◽  
pp. 230-242 ◽  
Author(s):  
R. E. Evans
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Energy Supply ◽  
Essential Amino Acids ◽  
Food Utilization ◽  
Biological Value ◽  
Potential Value ◽  
The Past

The addition of essential amino acids to all-vegetable diets, so as to raise the biological value of their proteins to the level of animal-protein concentrates, has often been advocated in the past by animal nutritionists. This aim was frustrated in practice since it was impossible, until recently, to secure the necessary supplies at prices that would make such additions economical. Feeding stuffs with added amino acids are now being sold commercially. This is possible following the manufacture of synthetic DL-methionine and crude L-lysine monochloride.It seemed desirable, therefore, to carry out investigations into the potential value of these amino acids to the pig feeder. This paper deals with the effect on growth, food utilization and retention of nitrogen of adding small amounts of lysine and methionine to the diet. An attempt is made to correlate the amino acid composition of the pig's diet with its rate of growth, the energy supply being adequate.

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