scholarly journals COMPREHENSIVE EVALUATION OF SOYBEAN AND SUNFLOWER PROCESSING PRODUCTS

Author(s):  
Н. P. Ryvak ◽  
G. I. Boyko ◽  
R. O. Ryvak

The literature review of the article presents the characteristics of the protein value of plant feed materials, in particular, of soybean and sunflower processing products, depending on the production technology. Their amino acid composition ideally meets the needs of young animals and poultry due to the high content of essential amino acids. The section «Materials and methods» presents methods for determining: crude protein by the Kjeldahl method, soluble protein in 0.2% potassium hydroxide, Barnstein protein, falsification of protein products with inorganic nitrogen, as well as characteristics of methods for determining the content of essential and non-essential amino acids, incl. sulfur-containing, using the system of capillary electrophoresis «Drops-105M». As a result of the research it was found that of the total number of analyzed samples of soybean meal in terms of protein content, 30.8% of products did not meet the declared values of producers and were in the range of 37.4 - 40.8%, in terms of protein solubility were in the range of 75 - 78%, which meets the norms of feeding.In addition, 5.0% of the total number of samples analyzed, were falsified after Bard alcohol, falsification of inorganic nitrogen was not found. The use of low-protein raw materials for the production of sunflower meal and cake was reflected in their protein content and ranged from 26.3 to 33.7%. Fermented soybean product and toasted soybean meal are characterized by a higher total content of essential amino acids in the protein, which was 26.3% and 27.2%, respectively, compared with full-fat expanded soybean expanded, where this figure was at 20.25%, and prevailed other analyzed products by methionine, threonine, tyrosine, phenylalanine, proline, alanine etc. The analyzed sample of sunflower meal, produced by a special technology is equivalent in total amino acid content in the studied soy products. Its content of methionine was 1.5 and 2.1 times higher, compared with toasted soybean meal and full-fat soybean, respectively. Also, the content of threonine, glycine, cystine, tryptophan, aspartic and glutamic acids in the sample of sunflower meal prevailed the content of the same amino acids in soybean products. Thus, the comprehensive assessment of plant protein components makes it possible to control not only the quantitative content of protein and amino acids, but also provides a detailed assessment of feeding.

2004 ◽  
Vol 79 (2) ◽  
pp. 231-240 ◽  
Author(s):  
A. I. García ◽  
J. C. de Bias ◽  
R. Carabaño

AbstractTwenty-eight New Zealand White X Californian doe rabbits weighing 3791±141 g were surgically fitted with a glass T-cannula at ileum level. Animals were given ad libitum access to either a casein-based diet (C) or a protein-free diet (PF). The only difference in the ingredient composition of the diets was the substitution of 160g/kg of maize starch by casein in the C diet. Animals were randomly allotted to each experimental diet. Seven rabbits per diet were not allowed to practice caecotrophy. The C diet resulted in higher food dry matter (DM) intake (DMI) (111-5 v. 51-5 g/day), food nitrogen intake (3-12 v. 0-20 g/day), ileal flow of DM (56-0 v. 23-8 g/day) and ileal flow of nitrogen (0-72 v. 0-24 g/day) but lower soft faeces DMI (21-7 v. 41-4 g/day) than the PF diet. A linear relationship between ileal endogenous nitrogen flow and total DMI was found for animals given the C but not for the PF diet. The ingestion ofC diet led to a higher (proportionately 0-41, on average), endogenous ileal amino acid flow than PF diet for all amino acids except for glycine. The ileal flow of glycine was proportionately 0-25 higher in animals given the PF diet than in animals given the C diet. The C diet resulted in higher content of nitrogen, threonine and proline in soft faeces than the PF diet. In contrast, the ingestion of the PF diet led to a higher content of lysine and methionine in soft faeces than the C diet. Within the C diet, animals practising caecotrophy showed higher ileal flow of DM (73-4 v. 56-0 g/day) and phenylalanine (0-834 v. 0-677 g/kg DMI) than animals not practising it. Caecotrophy led to a higher endogenous proportion of some of the most important limiting essential amino acids in rabbits, such as arginine, lysine, phenylalanine and threonine. In rabbits, the use of PF diets has limited practical application in the estimation of nitrogen endogenous losses as the low food DMI and the high soft faecesDMI leads to abnormal food: soft faeces intake ratio. Moreover, due to the important effect of caecotrophy on the amino acid composition of endogenous losses, it is important to correct the total amino acid content of the ileal chyme by the undigested amino acid residue coming from the soft faeces intake. This correction could be made, without the methodological complexity implied, by fitting animals with a wooden collar and thereby avoiding caecotrophy as in the present trial.


2009 ◽  
pp. 101-107
Author(s):  
Zoltán Mezei ◽  
Ágnes Pongrácznl Barancsi ◽  
Péter Sipos ◽  
Zoltán Győri ◽  
János Csapó

We analysed the crude protein content, amino acid content, amino acid composition of four forage and milling III. quality winter wheat varieties (Magor, Hunor, Róna and Kondor) from their samples from five following years (2003, 2004, 2005, 2006, 2007). We found that quantity of essential and non-essential amino acids rose with increase in crude protein content. On examination of protein amino acid composition in relation to crude protein content we found that the crude protein content increased the quantities of the non-essential amino acids also rose, while those of the essential amino acids decreased as the lysine, the limiting amino acid of wheat. We also established that, as crude protein content increased, the biological value of the protein decreased.


2008 ◽  
pp. 73-79
Author(s):  
Zoltán Mezei ◽  
Zoltán Győri ◽  
János Csapó

We analysed the crude protein content, amino acid content, amino acid composition of four forage and milling III. quality winter wheat varieties (Magor, Hunor, Róna and Kondor) from their samples from five following years (2003, 2004, 2005, 2006, 2007). We found that quantity of essential and non-essential amino acids rose with increase in crude protein content. On examination of protein amino acid composition in relation to crude protein content we found that the crude protein content increased the quantities of the non-essential amino acids also rose, while those of the essential amino acids decreased as the lysine, the limiting amino acid of wheat. We also established that, as crude protein content increased, the biological value of the protein decreased.


2019 ◽  
pp. 135-143
Author(s):  
Evgeniy Nikolaevich Sechin ◽  
Oleg Anatolyevich Marakaev ◽  
Gavriil Borisovich Gavrilov

Amino acid composition of aboveground and underground vegetative organs of Dactylorhiza maculata (L.) Soó (Orchidaceae), one of the representatives of the tuberoid species of orchids growing under the natural conditions of the center of European Russia, was detected using the method of zone capillary electrophoresis. The presence of 15 amino acids in the plant material, nine of them are «essential» (lysine, phenylalanine, histidine, leucine, isoleucine, methionine, valine, threonine, tryptophan) was established. The highest total amino acid content is characteristic of the leaves, the smallest for the old (wintered) caulorrhizous tuberoids. Among the identified amino acids in the plant material of D. maculata, the maximum total content is of leucine, the minimum are of tryptophan and methionine. The vegetative organs are also rich in alanine, arginine, valine and phenylalanine. The total content of amino acids in young caulorrhizous tuberoids is 38% higher than that in old storage organs. These differences are most pronounced for arginine, which is probably due to the spare function of this amino acid, containing more than 30% nitrogen. The got data indicate the promise of further studies of the amino acid composition of D. maculata and can characterize this species as a source of medicinal valuable substances with a broad spectrum of pharmacological activity.


Author(s):  
Walid Elfalleh ◽  
Nizar Tlili ◽  
Ma Ying ◽  
He Sheng-Hua ◽  
Ali Ferchichi ◽  
...  

Chemicals from fresh pomegranates were established. Total sugar of juice extracts are mainly fructose (ca. 7.27 g/100 ml) and glucose (ca. 8.11 g/100 ml). Pulp minerals, expressed as mg/100g are potassium (351.26), magnesium (10.02), calcium (9.26), sodium (7.25), iron (0.15), Zinc (0.10), copper (0.08) and manganese (0.04). Juice proteins are about 7.95 g/l and dry pulp proteins are 24% on a dry-weight basis DW (Kjeldhal assays). Seed proteins are ca. 16.87% DW. Globulins (62.4 mg/g DW) and albumins (54.12 mg/g DW) are the major storage protein fractions, followed by glutelins (33.2 mg/g DW) and prolamins (18.08 mg/g DW). Seed total amino acid content is 14.45 g/100 g DW. Seeds are rich in Glu, Arg, Asp, Leu and Gly amino acids. Essential amino acids average 33.54% of total amino acid. Essential amino acids are mostly all much higher than the requirement of FAO/WHO for adults (but none for preschool children). Most other amino acids have content slightly fewer. All of these findings implied that the content of sugar, mineral and protein maybe included in pomegranate as supplements for commonly diets.


2020 ◽  
Vol 1 (2) ◽  
pp. 145-153
Author(s):  
Idriss Lawane Abakar ◽  
◽  
Tidjani Abdelsalam ◽  
Parkouda Charles ◽  
François Tapsoba ◽  
...  

Kawal is made by a natural or uncontrolled fermentation of Senna obtusifolia leaves. It is a food condiment, and appreciated because of its particular flavor. It is also used as a meat or fish substitute. Kawal is an important source of protein in the diet of low-income families. The present work was done to determine the total amino acid content in raw and fermented Senna obtusifolia leaves. The high performance liquid chromatography (HPLC) with The Pico-Tag method was used for the analysis and determination of amino acid profiles. The results obtained showed that the kawal protein is rich in essential amino acids and semi-essential for humans, with different concentrations. Leucine gave a maximum value of 208.56 mg/100 g (DM) and 538,29 mg/100 g (DM); valine showed the value of 173,46 mg/100 g (DM) and 476.25 mg/100 g (DM), for lysine this value is 205.58 mg/100 g (DM) and 456.13 mg/100 g (DM). In the background, we have histidine, threonine, tyrosine, isoleucine and phenylalanine, whose best concentrations are between 157.36 mg/100 g and 397.93 mg/100 g (DM) in fermented leaves. For semi-essential amino acids, the fermented leaves have concentrations of between 121.96 mg/100 g and 1260.92 mg/100 g (DM).


2021 ◽  
Vol 50 (1) ◽  
pp. 144-152
Author(s):  
K. Berisha ◽  
H. Bytyçi ◽  
Zs. Mednyánszky ◽  
E. Kiss ◽  
L. Simon-Sarkadi

AbstractTo our knowledge, there is a lack of information on the nutrient composition of Busha cattle milk with special regard to its amino acid and biogenic amine contents. The Busha cattle breed is known to be highly resistant to various diseases and well-adapted to the extensive breeding conditions of the Balkan Peninsula. Busha cow milk contains an average of 13.47% dry matter, 4.34% fat, 3.72 % protein, and 4.32% lactose. Significant differences were detected (P < 0.05) in the amino acid compositions of the milk of different Busha cattle strains of Kosovo. Glutamic acid, proline, leucine, aspartic acid, lysine, and valine represented 68% of the total amino acid content. Essential amino acids, branched-chain and sulphur-containing amino acids were found in substantial amounts in the milk samples. Among the biogenic amines, however, spermine (0.16 mg kg−1) and cadaverine (0.09 mg kg−1) were present in low concentrations. Due to these excellent qualities of the Busha cow milk, preservation of this cattle breed is of great importance. Developing sustainable and secured breeding and feeding programs for this endangered cattle breed of the Balkan Peninsula should also be a high priority.


2020 ◽  
pp. 58-63
Author(s):  
K.B. Gurieva ◽  
N.A. Khaba ◽  
E.A. Tarasova ◽  
S.L. Beletskiy

The results of the research on the assessment of the biological value of wheat after storage by the composition and ratio of amino acids are presented. It is shown that after 6.5 years of storage in elevator silos, the protein content in wheat met the requirements of the standard for class 3 wheat. The sum of all amino acids was from 11.5 to 13.1 g / 100 g, including essential amino acids — 4.0-4.5g/100g and non-essential — 7.8-8.7 g / 100 g. The proportion of essential amino acids was 33.7-35.3% of the total amino acid content. The calculation of the amino acid score demonstrated that the main amino acid limiting the nutritional value of wheat after storage is lysine with an amino acid score of 45-53%. The essential amino acids threonine, valine, isoleucine, and leucine are also classified as deficient, but with a higher value of the amino acid score, close to the complete protein.


2016 ◽  
Vol 5 (10) ◽  
pp. 4972
Author(s):  
Lata Birlangi

The date palm (Phoenix dactylifera L.) is one of mankind’s oldest cultivated plants. The fruit of the date palm is an important crop of the hot arid and semi-arid regions of the world. It has always played a genuine economic and social part in the lives of the people of these areas. The present objective in examining the amino acid content of different varieties of date palm fruits from Middle-East region; is to determine whether its protein could effectively supplement the nutritional value and it is also aimed in finding which variety is rich in number of amino acids. The phytochemical screening revealed the presence of eight essential amino acids and five non-essential amino acids in the date fruits. Among all the date fruit varieties taken as samples for the study, Dabbas cultivar of United Arab Emirates found to exhibit eight types of amino acids which includes five as non-essential ones. Total of thirteen amino acids were detected in the seven date cultivars. Determination of amino acid can serve as a guide to the possible nutritional value.


Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2431
Author(s):  
Nicola Landi ◽  
Sara Ragucci ◽  
Antimo Di Maro

Cow, sheep and goat raw milk raised in Ailano and Valle Agricola territories (‘Alto Casertano’, Italy) were characterized (raw proteins, free and total amino acids content) to assess milk quality. Raw milk with the highest total protein content is sheep milk followed by goat and cow milk from both localities. Total amino acid content in cow, goat and sheep raw milk is 4.58, 4.81 and 6.62 g per 100 g, respectively, in which the most abundant amino acid is glutamic acid (~20.36 g per 100 g of proteins). Vice versa, the free amino acids content characteristic profiles are different for each species. In particular, the most abundant free amino acid in cow, sheep and goat raw milk is glutamic acid (9.07 mg per 100 g), tyrosine (4.72 mg per 100 g) and glycine (4.54 mg per 100 g), respectively. In addition, goat raw milk is a source of taurine (14.92 mg per 100 g), retrieved in low amount in cow (1.38 mg per 100 g) and sheep (2.10 mg per 100 g) raw milk. Overall, raw milk from ‘Alto Casertano’ show a high total protein content and are a good source of essential amino acids.


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