scholarly journals Effect of Planting Methods on the Quality of Three Egyptian Rice Varieties

2019 ◽  
Vol 65 (3) ◽  
pp. 119-127
Author(s):  
Nessreen N. Bassuony ◽  
József Zsembeli

Abstract In Egypt, the traditional transplanting method of rice planting is substituted by broadcasting and dibbling recently. This paper studies the effects and the changes occur in different rice varieties due to different methods on grain quality and amino acids of rice. Three Egyptian rice cultivars belonging to japonica, japonica/indica and indica subspecies were investigated for grain quality, protein and amino acid composition under three planting methods, i.e., broadcasting, seedling transplanting and dibbling. A strip plot design with three replications was used; the investigated three rice cultivars occupied the horizontal main plot, while three planting methods were devoted to the vertical main plot. The method of planting did not affect significantly the grain dimension, but it affected significantly the milling characters and the 1,000-grain weight. The highest milling characters and 1,000-grain weight came from transplanting, while the lowest one from the dibbling method. There was no significant difference between transplanting and broadcasting in milling characters and 1,000-grain weight. The chemical and cooking characters of grains showed no significant differences in moisture content and gelatinization temperature characters, while the differences in protein content and elongation were significant among the varieties and planting methods. The interaction between the planting method and rice had significant effect on the protein content. The most important essential amino acids according to the FAO/WHO pattern were not affected significantly by the different methods of planting. This means that the biological value of rice grains is not affected by different methods of planting.

Author(s):  
S. M. S. Shah ◽  
F. Ullah ◽  
I. Munir

Abstract Genetic distances among different chickpea varieties and evaluation of their free amino acid profiles were determined on the basis of Sodium dodecyle sulphate polyacrylamide gels electrophoresis (SDS-PAGE). Total soluble proteins were resolved on 10% SDS Polyacrylamide gel. Low variability in tested varieties was observed. Dendogram based on electrophoretic data clustered the genotypes into 2 groups. The results showed that the average protein content of all the varieties was 26.01% within the range 22.8% for Thal-2006 to 34.06% Sheenghar-2000 of dry seed weight. On the basis of total protein content Bittal-98, Dasht and Sheen Ghar-2000, Karak-3 and CM-98, Paidar -91 and Fakhr-e-Thal, C-44, Balaksar and KK-1showed similar concentrations for protein contents among each other but showed variation from the rest of the varieties. Different proteins were separated on the basis of changes in their molecular weights by means of Sodium Dodecyl Sulphate Polyacrylamide Gel Electrophoresis (SDS-PAGE). Dasht, CM-98, and Sheen Ghar showed 100% similarity. Balaksar and Fakhr-e- Thal, KK-2 and Chattan and KC-98, KK-1 and Lawaghar were 100% similar among each other but showed variation from the rest of the accessions. The overall dendrogram showed high and low level of variation among the accessions. The concentration of free amino acids varied among the 16 chickpea varieties. A significant difference of both essential and non-essential amino acids was found among the chickpea cultivars. The total concentration of essential amino acid was recorded 40.81 g/100 g protein while non-essential was recorded 59.18343 g/100 g protein in the given cultivars. The highest concentration of essential amino acids was found in C-44 followed by KK-2, KK-1 and Fakhr E Tal while the lowest concentration was recorded in Cm-98, Paidar-91 and Sheen Ghar-2000 respectively. Cultivars TAL-2006, Chattan and Karak-3 showed maximum concentration of both essential and endogenous amino acids. In conclusion; for broadening the genetic pools in breeding programs or to search for exotic characters, for instance new disease resistance alleles, accession with low similarity coefficients (Lawaghar and Battal-98) may be utilized. Furthermore the information acquired from this study could be used to device a proficient breeding approach intended at improving nutritional as well as broadening the genetic base of this essential food crop of Pakistan.


Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 325
Author(s):  
Ramin Rayee ◽  
Tran Dang Xuan ◽  
Tran Dang Khanh ◽  
Hoang-Dung Tran ◽  
Kifayatullah Kakar

The management of amylose and protein contents and cooking quality are the main challenges in rice macronutrients and quality improvement. This experiment was conducted to examine the rice grain quality, alkali digestion, and gel consistency responses to irrigation interval after anthesis. Three rice varieties (K1, K3, and K4) were subjected to different irrigation intervals (1, 2, and 3 d) after anthesis. The findings of this study showed that the protein content was markedly increased from 6.53–6.63% to 9.93–10.16%, whilst the amylose content was decreased significantly from 22.00–22.43% to 16.33–17.56% under stressed treatments at irrigation intervals, whilst the quantity of fatty acids was not affected. The 3-d irrigation interval recorded the highest protein content but the lowest amylose value. In addition, this treatment shows lower gelatinization temperature, but it is negatively associated with hard gel consistency under irrigation interval. This study highlights that the water management following a 3-d irrigation interval from anthesis is a useful and simple treatment to improve rice nutrients and grain cooking quality.


2014 ◽  
Vol 3 (2) ◽  
pp. 27 ◽  
Author(s):  
Jian-xue Lu ◽  
Yang-yang Gong ◽  
Yan-qing Huang ◽  
Hong-yu Ma ◽  
Xiong Zou ◽  
...  

<p>Three wild populations of crucifix crab<em> Charybdis feriatus</em> were sampled and muscle was analyzed for proximate composition, amino acid and fatty acid composition, aimed to quantify and compare the nutritional quality from three different locations in China. Results showed that crude protein content in muscle of female crucifix crab<em> C. feriatus</em> from Zhoushan (ZS) and Xiapu (XP) (84.84%-88.35%) were significantly higher than that of crucifix crab<em> C. feriatus</em> from Qionghai (QH) (74.33%), while there was no significant difference in terms of crude fat content (3.82%-4.07%). The highest content of ash was found in muscle of crucifix crab<em> C. feriatus</em> from QH (5.36%). The muscle of crucifix crab<em> C. feriatus</em> from ZS and XP had significantly higher contents of total amino acids, essential amino acids, non-essential amino acids and delicious amino acids than those of QH group (<em>P </em>&lt; 0.05). The total saturated and unsaturated fatty acid content in the muscle of crucifix crab<em> C. feriatus </em>from three wild populations showed significant difference (<em>P </em>&lt; 0.05). The ZS group had highest content of poly-unsaturated fatty acids (33.64%) and total content of EPA and DHA (22.85%) as well, followed by XP and QH group (<em>P </em>&lt; 0.05). Overall, the differences in chemical composition in muscle of <em>C. feriatus </em>from different locations<em> </em>could be attributed to environmental variables and maturation stage.</p>


2014 ◽  
Vol 43 (6) ◽  
pp. 301-309 ◽  
Author(s):  
Juliana Beatriz Toledo ◽  
Antonio Claudio Furlan ◽  
Paulo Cesar Pozza ◽  
Jocasta Carraro ◽  
Gabriel Moresco ◽  
...  

2020 ◽  
Vol 2 (2) ◽  
pp. 77-85
Author(s):  
Slamet Hadi Kusumah ◽  
Robi Andoyo ◽  
Tita Rialita

Stunting children need food intake with higher protein and essential amino acids such as lysine and leucine than normal children. Red Beans (Phaseolus Vulgaris L.) and Green Beans (Phaseolus Radiatus L.) have protein content, respectively 22.07 ± 0.13% and 19.99 ± 0.07%, and are rich in essential amino acids lysine and leucine needed by a stunting child. The Development of food products with high protein concentrations (high protein food) such as isolates/protein concentrates is an important subject that must be done. This study aims to determine the technique of isolating red bean and green bean protein through extraction and deposition methods at isoelectric pH. The research method used is an experimental method with descriptive data analysis. Identification of isoelectric pH of red bean and green bean protein is done through electrophoretic mobility (cm2/Vs) testing on samples that have been conditioned at 3 different depositional pHs namely pH 3.00, 4.00, and 5.00. The results showed the isoelectric pH value of red bean and green bean protein, namely pH 4.56 and pH 4.81 respectively, where the pH had electrophoretic mobility values equal to zero. The process of isolating red bean and green bean protein produces protein powder with a protein content of 79.22 ± 0.06% and 80.69 ± 0.06%, respectively. Based on the weight yield, red bean and green bean protein concentrate powder had a yield of 14.88% and 16.75%, respectively.


1963 ◽  
Vol 43 (1) ◽  
pp. 65-67 ◽  
Author(s):  
D. R. Clandinin ◽  
Louise Bayly

The protein content and the distribution of essential amino acids in the protein of six varieties or strains of rapeseed grown at three widely separated locations in Alberta, Beaverlodge, Edmonton and Lethbridge, were studied. Differences in protein content and amino acid distribution in the protein of the seed attributable to varietal or strain effects were noted. Turkish and Polish rapeseed were significantly lower in protein content than rapeseed of the Argentine variety. The Argentine variety and the two strains of Argentine-type studied were significantly lower in lysine than the Polish variety. Station differences in protein content approached significance at the 5 per cent level while location had a highly significant effect on the lysine content of the protein of the seed and significant effects on the histidine, arginine, phenylalanine and leucine content.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 642-642
Author(s):  
Glory Madu ◽  
Olasunkanmi Adegoke

Abstract Objectives Branched-chain amino acids (BCAAs) are essential amino acids that are crucial for skeletal muscle anabolism. Thus, alterations in their levels are associated with muscle atrophic diseases such as cancer, chronic inflammatory and neurological disorders. Others have linked impairments in BCAA metabolism to the development of insulin resistance and its sequelae. Compared to the effects of theses amino acids, much less is known on how impairment in BCAA catabolism affects skeletal muscle. BCAA catabolism starts with the reversible transamination by the mitochondrial enzyme branched-chain aminotransferase 2 (BCAT2). This is followed by the irreversible carboxylation, catalyzed by branched-chain ketoacid dehydrogenase (BCKD) complex. We have shown that BCAT2 and BCKD are essential for the differentiation of skeletal myoblasts into myotubes. Here, we investigated the effect of depletion of BCAT2 or of E1a subunit of BCKD in differentiated myotubes. Methods On day 4 of differentiation, L6 myotubes were transfected with the following siRNA oligonucleotides: scrambled (control), BCAT2, or E1a subunit of BCKD. Results Forty-eight hours after transfection, compared to control or BCAT2 siRNA group, we observed improved myotube structure in BCKD-depleted cells. BCKD depletion augmented myofibrillar protein levels: myosin heavy chain (MHC, 2-fold) and tropomyosin (4-fold), P &lt; 0.05, n = 3. To further analyze the increase in myofibrillar protein content, we examined signaling through mTORC1 (mechanistic target of rapamycin complex 1), a vital complex necessary for skeletal muscle anabolism. BCKD depletion increased the phosphorylation of mTORC1 upstream activator AKT (52%, P &lt; 0.05, n = 3), and of mTORC1 downstream substrates by 25%-86%, consistent with the increase in myofibrillar proteins. Finally, in myotubes treated with the catabolic cytokine (tumor necrosis factor-a), BCKD depletion tended to increase the abundance of tropomyosin (a myofibrillar protein). Conclusions We showed that depletion of BCKD enhanced myofibrillar protein content and anabolic signaling.  If these data are confirmed in vivo, development of dietary and other interventions that target BCKD abundance or functions may promote muscle protein anabolism in individuals with muscle wasting conditions. Funding Sources MHRC, NSERC York U.


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 ◽  
Vol 9 (1) ◽  
pp. 32-37
Author(s):  
Jamaluddin ◽  
Nur Atina ◽  
Yonelian Yuyun

In this study used a sample of eel fish species Anguilla marmorata (Q.) Gaimard and Anguilla bicolor from Poso lake that has a high protein content and is a fish endemic to Central Sulawesi. These eels are consumed by the surrounding community of the lake, but the nutritional content remains unknown. The present research was aimed to determine the protein level and amino acid profile of Anguilla marmorata (Q.) Gaimard and Anguilla bicolor eels. The protein level testing used Kjeldahl method, and amino acid profile used High Performance Liquid Chromatography. The results demonstrate the protein level of the two samples Anguilla marmorata (Q.) Gaimard eels have a protein content of 41.84% and Anguilla bicoloreels at 33.75%. Anguilla marmorata (Q.) Gaimard and Anguilla bicolor eels contain 18 types of amino acid, comprised of 9 types of essential amino acids and 9 types of non-essential amino acids. Of the two samples of eel species Anguilla marmorata (Q.) Gaimard and Anguilla bicolor, have complete protein quality because it has all kinds of essential amino acids.


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