Soil type affects grape juice free amino acids profile during ripening of cv. Malvasia Istriana (Vitis vinifera L.)

2019 ◽  
Vol 48 (1) ◽  
pp. 22-33 ◽  
Author(s):  
Igor Palčić ◽  
Ana-Marija Jagatić Korenika ◽  
Snježana Jakobović ◽  
Igor Pasković ◽  
Nikola Major ◽  
...  
2018 ◽  
Vol 16 (1) ◽  
pp. 833-841 ◽  
Author(s):  
Magdalena Dziągwa-Becker ◽  
Ryszard Weber ◽  
Olga Zajączkowska ◽  
Wiesław Oleszek

AbstractThe purpose of this study was to establish the free amino acids profile of Viola tricolor collected from different habitats in Poland. Viola tricolor (heartsease) is a very popular plant found worldwide, classified both as weed and medicinal plant. Based on a validated method, the following nineteen free amino acids were analyzed using liquid chromatography-electrospray ionization coupled to a triple quadrupole mass spectrometer (LC-ESI-MS/MS):alanine, glycine, leucine, valine, isoleucine, proline, phenylalanine, tryptophan, tyrosine, serine, threonine, methionine, asparagine, glutamine, lysine, arginine, histidine, aspartic acid, glutamic acid. The total free amino acids (TAA) ranged from 9938.0 to 11393.8 mg/kg of fresh weight. The variability of the investigated amino acids with respect to different habitat conditions was statistically assessed using the method of discriminant and cluster analysis. Alanine, valine, glutamine and aspartic acid were the most abundant free amino acids present in both localizations. The ratio of total essential amino acids (EAA) to TAA was 0.27 and 0.11 in Zagródki and Wrocław, respectively. Discriminant analysis has demonstrated that the investigated habitats significantly differentiated the free amino acids content of Viola tricolor. Only methionine showed a similar concentration in both Viola tricolor populations.


2003 ◽  
Vol 51 (17) ◽  
pp. 5079-5087 ◽  
Author(s):  
Pablo M. Cometto ◽  
Pablo F. Faye ◽  
Romina D. Di Paola Naranjo ◽  
Miguel A. Rubio ◽  
Mario A. J. Aldao

2007 ◽  
Vol 30 (9-10) ◽  
pp. 1371-1383 ◽  
Author(s):  
B. M. Silva ◽  
L. R. Silva ◽  
P. Valentão ◽  
R. M. Seabra ◽  
P. B. Andrade ◽  
...  

Food Control ◽  
2007 ◽  
Vol 18 (5) ◽  
pp. 473-479 ◽  
Author(s):  
Teresa Garde-Cerdán ◽  
Margaluz Arias-Gil ◽  
A. Robert Marsellés-Fontanet ◽  
Carmen Ancín-Azpilicueta ◽  
Olga Martín-Belloso

2013 ◽  
Vol 141 (3) ◽  
pp. 3207-3214 ◽  
Author(s):  
M. Gratacós-Cubarsí ◽  
C. Sárraga ◽  
M. Castellari ◽  
A. Valero ◽  
J.A. García Regueiro ◽  
...  

OENO One ◽  
2000 ◽  
Vol 34 (1) ◽  
pp. 19
Author(s):  
Alberto Miele ◽  
Alain Carbonneau ◽  
Jacques Bouard

<p style="text-align: justify;">The composition of free amino acids was studied from leaves, pericarps, skins, musts and seeds of <em>Vitis vinifera</em> L. cv. Cabernet Sauvignon. Vineyards were in the Bordeaux region and the grapevines were conducted in espalier and lyre systems. Grapes were collected at maturity and lyophilized after sampling. Extraction of free amino acids was done with a hydroalcoholic solution and their analysis was performed with an autoanalyzer. A standard of 34 amino acids was utilized for the qualitative analysis. The results showed that, for both espalier and lyre training systems, respectively, the free amino acids were predominant in the pericarps (12.85 and 11.21 mg/g dw) - 16.88 and 15.12 mg/g dw in skins and 3.29 and 2.88 g/l in musts -, followed by the seeds (2.37 and 2.32 mg/g dw) and leaves (1.87 and 1.98 mg/g dw). The most abundant free amino acids in leaves were glutamic acid (23.8 and 28.8 p. cent), aspartic acid (8.8 and 11.1 p. cent), and glutamine (10.1 and 9.4 p. cent). Proline (41.8 and 41.5 p. cent) and arginine (22.8 and 22.4 p. cent) predominated in the pericarps. In seeds, the main amino acids were proline (14.5 and 15.8 p. cent), arginine (11.0 and 11.8 p. cent), histidine (11.2 and 8.7 p. cent), and glutamic acid (11.3 and 8.2 p. cent). Grapevine training system showed some differences in the total amount and in the percentages of each free amino acid, but the pattern of these compounds for each tissue was similar for both training systems.</p>


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