Discriminating Significance of the Free Amino Acid Profile in Almond Seeds

Carratalá, M. L. Martín; Moya, María Soledad Prats; Teruel, Núria Grané; Navarro, V. Berenguer

doi:10.1021/jf020108t

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…Nevertheless, all the wines classified in group 1 come from the same growing area, whereas in group 2 classified wines come from the other five sources that were introduced in the present study. This may support that sometimes the free amino acids profile can be used to classify food samples by the place of production as used for almond seeds (Martín-Carratalá et al, 2002) or in the determination of origin for honey (Pereira et al, 2008). The same classification was obtained when the cluster analysis was applied to the free amino acids content.…”

Section: Differentiation Of Monastrell Wine Samples According To Biogsupporting

confidence: 65%

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Free amino acids and biogenic amines in Alicante Monastrell wines

Arrieta

Moya

2012

Food Chemistry

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Section: Differentiation Of Monastrell Wine Samples According To Biogsupporting

confidence: 65%

“…To assess the reliability of the method, analysis of variance for linear regression was used. Cluster analysis was carried out by applying the Ward method for agglomeration, with the square of Euclidean distance as the criterion of proximity (Martín-Carratalá et al, 2002).…”

Section: Data Statistical Analysismentioning

confidence: 99%

Free amino acids and biogenic amines in Alicante Monastrell wines

Arrieta

Moya

2012

Food Chemistry

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“…Multivariate analyses have been employed successfully in previous almond studies to discriminate between cultivars used in the manufacture of turrón (Verdú and others ), to distinguish protected from commercial nonprotected cultivars (Barreira and others ), or to group cultivars based on fatty acid (García‐López and others ) or amino acid (Martín‐Carratalá and others ) profiles. In this study, we succeeded in discriminating kernels of 4 almond cultivars within the NMG from cultivars Carmel and Padre.…”

Section: Discussionmentioning

confidence: 99%

Distinguishing Nonpareil Marketing Group Almond Cultivars through Multivariate Analyses

Ledbetter

Sisterson

2013

Journal of Food Science

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More than 80% of the world's almonds are grown in California with several dozen almond cultivars available commercially. To facilitate promotion and sale, almond cultivars are categorized into marketing groups based on kernel shape and appearance. Several marketing groups are recognized, with the Nonpareil Marketing Group (NMG) demanding the highest prices. Placement of cultivars into the NMG is historical and no objective standards exist for deciding whether newly developed cultivars belong in the NMG. Principal component analyses (PCA) were used to identify nut and kernel characteristics best separating the 4 NMG cultivars (Nonpareil, Jeffries, Kapareil, and Milow) from a representative of the California Marketing Group (cultivar Carmel) and the Mission Marketing Group (cultivar Padre). In addition, discriminant analyses were used to determine cultivar misclassification rates between and within the marketing groups. All 19 evaluated carpological characters differed significantly among the 6 cultivars and during 2 harvest seasons. A clear distinction of NMG cultivars from representatives of the California and Mission Marketing Groups was evident from a PCA involving the 6 cultivars. Further, NMG kernels were successfully discriminated from kernels representing the California and Mission Marketing Groups with overall kernel misclassification of only 2% using 16 of the 19 evaluated characters. Pellicle luminosity was the most discriminating character, regardless of the character set used in analyses. Results provide an objective classification of NMG almond kernels, clearly distinguishing them from kernels of cultivars representing the California and Mission Marketing Groups.

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“…Theoretically, this may provide the growing plant with 1.4 mg NH 3 /g of fresh plant material, which may afford 12 mg glutamine or glutamate/g (fresh tissue), i.e. approximately 12 times as many nitrogen equivalents than present in the total free amino acid pool in dried almond seeds [54].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

Pičmanová

Neilson

Motawia

et al. 2015

Biochemical Journal

118

132

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N. (2015). A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species. Biochemical Journal, 469(3), 375-389. DOI: 10.1042/BJ20150390 1 A RECYCLING PATHWAY FOR CYANOGENIC GLYCOSIDES EVIDENCED BY THE COMPARATIVE METABOLIC PROFILING IN THREE CYANOGENIC PLANT SPECIES ABSTRACTCyanogenic glycosides are phytoanticipins involved in plant defence against herbivores by virtue of their ability to release toxic HCN upon tissue disruption. In addition, endogenous turnover of cyanogenic glycosides without the liberation of HCN may offer plants an important source of reduced nitrogen at specific developmental stages. To investigate the presence of putative turnover products of cyanogenic glycosides, comparative metabolic profiling using LC-MS/MS and HR-MS complemented by ion-mobility mass spectrometry was carried out in three cyanogenic plant species: cassava, almond and sorghum. In total, the endogenous formation of 36 different chemical structures related to the cyanogenic glucosides linamarin, lotaustralin, prunasin, amygdalin and dhurrin was discovered, including di-and triglycosides derived from these compounds. The relative abundance of the compounds was assessed in different tissues and developmental stages. Based on results common to the three phylogenetically unrelated species, a potential recycling endogenous turnover pathway for cyanogenic glycosides is described in which reduced nitrogen and carbon are recovered for primary metabolism without the liberation of free HCN. Glycosides of amides, carboxylic acids and anitriles derived from cyanogenic glycosides appear as common intermediates in this pathway and may also have individual functions in the plant. The recycling of cyanogenic glycosides and the biological significance of the presence of the turnover products in cyanogenic plants open entirely new insights into the multiplicity of biological roles cyanogenic glycosides may play in plants.Abbreviations: HR-MS, high-resolution mass spectrometry; EIC, extracted ion chromatogram; IM-MS, ionmobility mass spectrometry; ATD, arrival time distribution; CID, collision-induced dissociation 2 SUMMARY STATEMENTA potential recycling pathway for cyanogenic glycosides is presented wherein reduced nitrogen and carbon are recovered for primary metabolism without HCN liberation. Common types of glycosylated pathway intermediates were found in three cyanogenic plant species: cassava, almond and sorghum.

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Discriminating Significance of the Free Amino Acid Profile in Almond Seeds

Cited by 10 publications

References 8 publications

Free amino acids and biogenic amines in Alicante Monastrell wines

Free amino acids and biogenic amines in Alicante Monastrell wines

Distinguishing Nonpareil Marketing Group Almond Cultivars through Multivariate Analyses

A recycling pathway for cyanogenic glycosides evidenced by the comparative metabolic profiling in three cyanogenic plant species

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