LIPID AND PROTEIN IN GERMINATING AND DEVELOPING FLAXSEED LINUM USITATISSIMUM L.

1963 ◽  
Vol 41 (3) ◽  
pp. 745-754 ◽  
Author(s):  
R. E. Huber ◽  
Saul Zalik
Keyword(s):  
Fatty Acid ◽  
Amino Acid ◽  
Protein Content ◽  
Free Amino Acid ◽  
Free Amino ◽  
Dynamic Equilibrium ◽  
Lipid Synthesis ◽  
Amino Acid Content ◽  
Total Content ◽  
Linum Usitatissimum L

The metabolism of lipid and protein fractions in developing and germinating flaxseed was investigated. Fatty acid concentrations in the early-development stages of field- and greenhouse-grown plants showed similar increases, but the fatty acid composition of the mature seed appeared to be influenced by environment. The pattern of fatty acid interconversions during lipid synthesis suggested that more-unsaturated acids were formed from less-unsaturated ones. Studies at later stages of seed development indicated that the lipid was in a state of dynamic equilibrium. The relative proportions of each fatty acid during germination remained constant, suggesting that fatty acids were being broken down at a rate proportional to the amount originally present. During flaxseed development protein content increased steadily. Until 4 weeks after the plants had bloomed, the total content of each amino acid increased, but the free amino acid portion and amide nitrogen decreased. Subsequently all remained at a constant level. During germination the protein content and the proportions of the various amino acids of flaxseed remained constant but the free amino acid content rose. The radioisotope studies gave no clear indication of amino acid interconversions.

LIPID AND PROTEIN IN GERMINATING AND DEVELOPING FLAXSEED LINUM USITATISSIMUM L.

1963 ◽  
Vol 41 (1) ◽  
pp. 745-754 ◽  
Author(s):  
R. E. Huber ◽  
Saul Zalik
Keyword(s):  
Fatty Acid ◽  
Amino Acid ◽  
Protein Content ◽  
Free Amino Acid ◽  
Free Amino ◽  
Dynamic Equilibrium ◽  
Lipid Synthesis ◽  
Amino Acid Content ◽  
Total Content ◽  
Linum Usitatissimum L

The metabolism of lipid and protein fractions in developing and germinating flaxseed was investigated. Fatty acid concentrations in the early-development stages of field- and greenhouse-grown plants showed similar increases, but the fatty acid composition of the mature seed appeared to be influenced by environment. The pattern of fatty acid interconversions during lipid synthesis suggested that more-unsaturated acids were formed from less-unsaturated ones. Studies at later stages of seed development indicated that the lipid was in a state of dynamic equilibrium. The relative proportions of each fatty acid during germination remained constant, suggesting that fatty acids were being broken down at a rate proportional to the amount originally present. During flaxseed development protein content increased steadily. Until 4 weeks after the plants had bloomed, the total content of each amino acid increased, but the free amino acid portion and amide nitrogen decreased. Subsequently all remained at a constant level. During germination the protein content and the proportions of the various amino acids of flaxseed remained constant but the free amino acid content rose. The radioisotope studies gave no clear indication of amino acid interconversions.

Free amino acids of sunflower hypocotyl tissue during crown gall tumor development

1968 ◽  
Vol 46 (3) ◽  
pp. 217-223 ◽  
Author(s):  
R. M. Behki ◽  
S. M. Lesley
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Free Amino Acids ◽  
Free Amino ◽  
Amino Acid Content ◽  
Total Content ◽  
Free Proline ◽  
Total Free Amino Acids ◽  
Hypocotyl Tissue

The concentration of each free amino acid present in hypocotyl tissue of sunflower seedlings was determined during the period following both sterile wounding and inoculation with either tumorigenic (strain 1025) or non-tumorigenic (strain IIBNV6) Agrobacterium tumefaciens. The concentration of the total free amino acids of hypocotyl tissue reached a maximum 68 hours after infection with strain 1025 and this level was 50% greater than that found in plants treated with strain IIBNV6. The total content of free basic amino acids increased to a peak value at 20 hours after infection by strain 1025 and this represented 1.4 to 3 times the level found in strain IIBNV6 inoculated seedlings at 20 hours.The amount of free proline decreased with time and it was essentially absent 164 hours after infection with strain 1025. At 2 months the concentration of free proline in the tumor tissue was greatly increased with 75% of the total free amino acids accounted for as proline.The free amino acid content of strain 1025 growing in either the presence or absence of an extract from wounded seedlings was measured and the results indicated no significant relationship between the plant and bacterial systems with regard to their free amino acid pools.

scholarly journals The effect of cortisone acetate on the course of development of experimental protein-energy malnutrition in rats

1976 ◽  
Vol 36 (3) ◽  
pp. 537-550 ◽  
Author(s):  
P. G. Lunn ◽  
R. G. Whitehead ◽  
B. A. Baker ◽  
S. Austin
Keyword(s):  
Amino Acid ◽  
Protein Content ◽  
Free Amino Acid ◽  
Free Amino ◽  
Protein Energy Malnutrition ◽  
Amino Acid Content ◽  
Liver Weight ◽  
Cortisone Acetate ◽  
Deficient Diet ◽  
Protein Energy

1. The role of corticosteroids in determining which clinical features of protein-energy malnutrition develop on a deficient diet has been studied by the administration of cortisone acetate to experimentally malnourished rats fed ad lib. on a mixture containing 31 g protein/kg.2. Daily administration of 1.25 mg cortisone acetate did not affect dietary intake, which remained the same as in saline (9 g sodium chloride/l)-injected controls. Plasma albumin concentrations, however, increased from a low value of 25.7 g/1 to 47.2 g/l and this was accompanied by an increase both in liver weight and protein content. On the other hand, the protein content of muscle decreased.3. These changes in the protein contents of liver and muscle were associated with alterations in the corresponding free amino acid pools. The free amino acid content of muscle generally decreased, but in liver many amino acids were increased.

scholarly journals Effect of High Hydrostatic Pressure Processing on the Chemical Characteristics of Different Lamb Cuts

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1444
Author(s):  
Kevin Kantono ◽  
Nazimah Hamid ◽  
Indrawati Oey ◽  
Yan Chao Wu ◽  
Qianli Ma ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fatty Acid ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Acid Content ◽  
Free Amino ◽  
Fatty Acid Content ◽  
Amino Acid Content ◽  
Free Amino Acid Content ◽  
Almost All

The non-thermal high-pressure processing (HPP) technique has been used to increase the shelf life of food without compromising their nutritional and sensory qualities. This study aims to explore the potential application of HPP on New Zealand lamb meat. In this study, the effect of HPP, at different pressure treatments (200–600 MPa) on eight different lamb meat cuts in terms of lipid oxidation, fatty acid and free amino acid content were investigated. In general treatments between 400 and 600 MPa resulted in higher oxidation values in eye of loin, flat, heel, and tenderloin cuts. Saturated and monounsaturated fatty acid content were significantly lower with HPP treatment of almost all cuts (except rump and heel cuts) at all pressures. Polyunsaturated fatty acid content was significantly lower in HPP-treated inside, knuckle, and tenderloin cuts at 600 MPa compared to control. Nine essential free amino acids (valine, leucine, isoleucine, methionine, phenylalanine, lysine, histidine, tyrosine and tryptophan), and eight non-essential free amino acids (alanine, glycine, threonine, serine, proline, aspartic acid, glutamic acids and ornithine) were identified in the lamb cuts. HPP increased the total free amino acid composition significantly compared to control at all pressures for almost all cuts except the inside and eye of loin cuts. This study suggests that higher pressure treatments (i.e., 400 and 600 MPa) resulted in higher TBARS oxidation levels. Additionally, significant decreases in saturated and monounsaturated fatty acids and increase free amino acid content were observed in the majority of HPP-treated samples compared to control.

Evaluation of seed amino acid content and its correlation network analysis in wild soybean (Glycine soja) germplasm in Japan

2021 ◽  
Vol 19 (1) ◽  
pp. 35-43
Author(s):  
Awatsaya Chotekajorn ◽  
Takuyu Hashiguchi ◽  
Masatsugu Hashiguchi ◽  
Hidenori Tanaka ◽  
Ryo Akashi
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Acid Content ◽  
Free Amino ◽  
Glycine Soja ◽  
Wild Soybean ◽  
Amino Acid Content ◽  
Soybean Seeds ◽  
Free Amino Acid Content

AbstractWild soybean (Glycine soja) is a valuable genetic resource for soybean improvement. Seed composition profiles provide beneficial information for the effective conservation and utilization of wild soybeans. Therefore, this study aimed to assess the variation in free amino acid abundance in the seeds of wild soybean germplasm collected in Japan. The free amino acid content in the seeds from 316 accessions of wild soybean ranged from 0.965 to 5.987 mg/g seed dry weight (DW), representing a 6.2-fold difference. Three amino acids had the highest coefficient of variation (CV): asparagine (1.15), histidine (0.95) and glutamine (0.94). Arginine (0.775 mg/g DW) was the predominant amino acid in wild soybean seeds, whereas the least abundant seed amino acid was glutamine (0.008 mg/g DW). A correlation network revealed significant positive relationships among most amino acids. Wild soybean seeds from different regions of origin had significantly different levels of several amino acids. In addition, a significant correlation between latitude and longitude of the collection sites and the total free amino acid content of seeds was observed. Our study reports diverse phenotypic data on the free amino acid content in seeds of wild soybean resources collected from throughout Japan. This information will be useful in conservation programmes for Japanese wild soybean and for the selection of accessions with favourable characteristics in future legume crop improvement efforts.

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