scholarly journals Influence of protein concentrate in the diet on productivity and amino acid composition of cow milk

2019 ◽  
Vol 341 ◽  
pp. 012057
Author(s):  
N P Buryakov ◽  
M A Buryakova ◽  
I A Suslova ◽  
A S Zaikina ◽  
D E Aleshin ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Cow Milk ◽  
Protein Concentrate

Biological Processing of Pea Grain and Secondary Starch Raw Materials to Produce Food and Feed Protein Concentrates

2020 ◽  
Vol 36 (4) ◽  
pp. 49-58
Author(s):  
V.V. Kolpakova ◽  
R.V. Ulanova ◽  
L.V. Chumikina ◽  
V.V. Bessonov
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Mass Fraction ◽  
Geotrichum Candidum ◽  
Protein Concentrate ◽  
Protein Concentrates ◽  
Pea Flour ◽  
Nitrogenous Substances

The goal of the study was to develop a biotechnological process for the production of protein concentrates via bioconversion of pea flour and whey, a secondary product of starch manufacture. Standard and special methods were used to analyze the chemical and biochemical composition of protein concentrates (amino acid, carbohydrate, and fractional) of flour, whey and protein concentrates. It was established that pea flour contains 52.28-57.05% water-soluble nitrogenous substances, 23.04-25.50% salt-soluble, 2.94-4.69% alcohol-soluble compounds, 0-0.61% of soluble glutenine, 6.67-10.40% alkali-soluble glutenine and 5.96-10.86% insoluble sclerotic substances. A mathematical model and optimal parameters of the enzymatic extraction of pea protein with a yield of 65-70% were developed. Ultrasonic exposure increased the yield of nitrogenous substances by 23.16 ± 0.69%, compared with the control without ultrasound. The protein concentrate had a mass fraction of nitrogenous substances of 72.48 ± 0.41% (Nx6.25) and a complete amino acid composition. The microbial conversion by the Saccharomyces cerevisiae 121 and Geotrichum candidum 977 cultures of starch whey which remained after protein precipitation allowed us to obtain feed concentrates from biomass and culture liquid with a protein mass fraction of 61.68-70.48% (Nx6.25). Protein concentrates positively affected the vital signs of rats and their excretory products. A technological scheme was developed to test the complex pea grain and starch whey processing under pilot conditions. pea, protein concentrate, extracts, whey, bioconversion, Geotrichum candidum, Saccharomyces cerevisiae, chemical composition, amino acid composition

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.

Edible Protein from Parthenium hysterophorus

1978 ◽  
Vol 14 (1) ◽  
pp. 93-94 ◽  
Author(s):  
V. A. Savangikar ◽  
R. N. Joshi
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Parthenium Hysterophorus ◽  
Leaf Protein ◽  
Protein Concentrate ◽  
Nutritional Properties ◽  
Leaf Protein Concentrate ◽  
Forage Species ◽  
Edible Protein

SUMMARYLeaf protein concentrate was prepared from the weed Parthenium hysterophorus L. and the nutritional properties of this preparation were studied in relation to its amino acid composition and digestibility. The product and the residual fibre closely resembled similar products made from conventional forage species.

scholarly journals A Comparison of Amino Acid Composition and Carbohydrate of Goat and Cow Milk Acid Phosphatases

1984 ◽  
Vol 55 (9) ◽  
pp. 696-698
Author(s):  
Yasuo KUZUYA ◽  
Yoshihiro KANAMARU ◽  
Tamotue TANAHASHI
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Cow Milk ◽  
Acid Phosphatases

scholarly journals Influence of different agroecological conditions of southern Russia on quality indicators of raw milk

2021 ◽  
Vol 15 (4) ◽  
pp. 114-125
Author(s):  
I. F. Gorlov ◽  
M. I. Slozhenkina ◽  
O. Y. Mishina ◽  
E. В. Karpenko ◽  
N. I. Mosolova
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Chemical Elements ◽  
Raw Milk ◽  
Fermented Milk ◽  
Climatic Conditions ◽  
Cow Milk ◽  
Natural Zones ◽  
Volgograd Region

Aim. To demonstrate the high adaptive abilities of dairy cattle to various ecosystems and natural zones of the Lower Volga at different times of the year. For the study we selected farms located in the steppe and semi-desert natural zones of the Volgograd region where animals of different breeds are reared.Material and Methods. Analysis was undertaken of the main indicators of raw milk quality, amino acid composition and environmental safety. Animals of all farms studied showed fairly high indicators of milk productivity in the climatic conditions of the Volgograd region, according to the standards of the breeds investigated.Results. The content of essential amino acids in cow milk for all groups varied depending on the breed and period of the year, generally reaching maximum values in winter. The calculation of amino acid scores showed that lysine is a limiting amino acid in animals of the Holstein-Friesian breed in the summer and autumn periods of lactation. The determination of chemical elements in milk during the summer period of lactation showed that all indicators are within acceptable concentrations, including heavy metals (lead, arsenic, cadmium, mercury).Conclusion. The research conducted confirms compliance of raw milk with standards in all farms studied for the main controlled indicators of quality and amino acid composition, content of chemical elements and allows recommendation of the milk produced for the production of all types of dairy and fermented milk products.

scholarly journals Protein Concentrate from Water Hyacinth and Its Amino Acid Composition

1978 ◽  
Vol 31 (1) ◽  
pp. 99-102
Author(s):  
Hisateru MITSUDA ◽  
Masako HIGUCHI ◽  
Koichi SHIRAI ◽  
Aijiro YAMAMOTO
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Water Hyacinth ◽  
Protein Concentrate

scholarly journals Production, Purification, and Study of the Amino Acid Composition of Microalgae Proteins

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2767
Author(s):  
Anna Andreeva ◽  
Ekaterina Budenkova ◽  
Olga Babich ◽  
Stanislav Sukhikh ◽  
Elena Ulrikh ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Mass Fraction ◽  
Dunaliella Salina ◽  
Relative Content ◽  
Protein Concentrate ◽  
Two Stage ◽  
Microalgae Biomass

Microalgae are known to be rich in protein. In this study, we aim to investigate methods of producing and purifying proteins of 98 microalgae including Chlorella vulgaris, Arthrospira platensis, Nostoc sp., Dunaliella salina, and Pleurochrysis carterae (Baltic Sea). Therefore, we studied their amino acid composition and developed a two-stage protein concentrate purification method from the microalgae biomass. After an additional stage of purification, the mass fraction of protein substances with a molecular weight greater than 50 kDa in the protein concentrate isolated from the biomass of the microalga Dunaliella salina increased by 2.58 times as compared with the mass fraction before filtration. In the protein concentrate isolated from the biomass of the microalga Pleurochrysis cartera, the relative content of the fraction with a molecular weight greater than 50.0 kDa reached 82.4%, which was 2.43 times higher than the relative content of the same fractions in the protein concentrate isolated from this culture before the two-stage purification. The possibilities of large-scale industrial production of microalgae biomass and an expanded range of uses determine the need to search for highly productive protein strains of microalgae and to optimize the conditions for isolating amino acids from them.

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