Study of the effects of proline, phenylalanine, and urea foliar application to Tempranillo vineyards on grape amino acid content. Comparison with commercial nitrogen fertilisers

2014 ◽  
Vol 163 ◽  
pp. 136-141 ◽  
Author(s):  
T. Garde-Cerdán ◽  
R. López ◽  
J. Portu ◽  
L. González-Arenzana ◽  
I. López-Alfaro ◽  
...  
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Foliar Application ◽  
Amino Acid Content ◽  
Commercial Nitrogen

scholarly journals Amino acid content in red wines obtained from grapevine nitrogen foliar treatments: consumption during the alcoholic fermentation

Wine Studies ◽  
2014 ◽  
Vol 3 (1) ◽  
Author(s):  
Javier Portu ◽  
Rosa López ◽  
Isabel López-Alfaro ◽  
Lucía González-Arenzana ◽  
Pilar Santamaría ◽  
...  
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Acid Content ◽  
Alcoholic Fermentation ◽  
Foliar Application ◽  
Amino Acid Content ◽  
Nitrogen Fertilizers ◽  
Red Wines ◽  
Wine Quality ◽  
Commercial Nitrogen

Nitrogen is an important element for grapevine and winemaking which affects the development of the plant and yeast, and therefore it is important for wine quality. The aim of this work was to study the influence of foliar application to vineyard of proline, phenylalanine and urea and two commercial nitrogen fertilizers, without and with amino acids in their formulation, on the wine amino acid content and their consumption during the alcoholic fermentation. The results showed that these treatments did not affect the amino acid composition in wines. The differences observed for certain amino acids were so small that the concentration of total amino acids was not significantly different among wines. Moreover, it was observed that the higher the content of amino acids in the medium, the greater their consumption during the alcoholic fermentation.

scholarly journals Foliar application of methyl jasmonate to Graciano and Tempranillo vines: effects on grape amino acid content during two consecutive vintages

OENO One ◽  
2019 ◽  
Vol 53 (1) ◽  
Author(s):  
Teresa Garde-Cerdan ◽  
Gastón Gutiérrez-Gamboa ◽  
Eva Pilar Pérez-Álvarez ◽  
Pilar Rubio-Bretón
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Methyl Jasmonate ◽  
Acid Content ◽  
Foliar Application ◽  
Amino Acid Content ◽  
Total Amino Acid ◽  
Nitrogen Compounds ◽  
Grape Quality ◽  
Total Amino Acid Content

Aim: The study of elicitors in grapevines has focused on inducing resistance to diseases and improving phenolic and volatile composition of grapes and wines. Due to the importance of nitrogen compounds in grape quality, the aim of this work was to study the effect of methyl jasmonate (MeJ) applied to two grapevine varieties on grape amino acid content during two consecutive seasons.Methods and results: Amino acids were analyzed by HPLC-DAD. The results showed that MeJ applications to Tempranillo grapevines decreased the concentration of certain amino acids during both seasons, but did not affect total amino acid content. Moreover, MeJ applications to Graciano grapevines increased the concentration of several amino acids during the second season.Conclusions: The effects of MeJ on grape amino acid concentration were conditioned by variety and vintage.Significance and impact of the study: The importance of this work is to provide more information with respect to the effects of elicitors on grape quality for good viticultural management.

scholarly journals The effects of insulin and adrenaline on the amino-acid content of blood

1933 ◽  
Vol 27 (5) ◽  
pp. 1648-1654 ◽  
Author(s):  
James Murray Luck ◽  
Stanley Wallace Morse
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Amino Acid Content

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.

Effect of preliminary and culinary processing on amino acid content and protein quality in frozen French beans

2008 ◽  
Vol 43 (10) ◽  
pp. 1786-1791 ◽  
Author(s):  
Waldemar Kmiecik ◽  
Zofia Lisiewska ◽  
Jacek Słupski ◽  
Piotr Gębczyński
Keyword(s):  
Amino Acid ◽  
Acid Content ◽  
Protein Quality ◽  
Amino Acid Content ◽  
French Beans
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