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Free amino acids of tronchuda cabbage (Brassica oleracea L. Var. costata DC): influence of leaf position (internal or external) and collection time.
J Agric Food Chem. 2008 Jul 09; 56(13):5216-21.JA

Abstract

The free amino acid profile of 18 samples of tronchuda cabbage (Brassica oleracea L. var. costata DC) leaves, harvested at three different months, was determined by HPLC/UV-vis. The tronchuda cabbage leaves total free amino acid content varied from 3.3 to 14.4 g/kg fresh weight. Generally, arginine was the major compound, followed by proline, threonine, glutamine, cysteine, and glutamic acid. This study indicates that free amino acids are not similarly distributed: in external leaves, proline and arginine were the major free amino acids, while in internal ones, arginine was the main free amino acid, followed by threonine, glutamine, and cysteine. Significant differences were observed for valine, proline, arginine, leucine, cysteine, lysine, histidine, and tyrosine contents. The levels of some free amino acids were significantly affected by the collection period. In external leaves, this occurred with glutamic acid, serine, valine, leucine, cysteine, and ornithine contents, while in internal leaves, it occurred with aspartic acid, arginine, and total contents.

Authors+Show Affiliations

CEBIMED, Faculdade de Ciências da Saúde, Universidade Fernando Pessoa, R. Carlos da Maia, 296, 4200-150 Porto, Portugal.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18553888

Citation

Oliveira, Andreia P., et al. "Free Amino Acids of Tronchuda Cabbage (Brassica Oleracea L. Var. Costata DC): Influence of Leaf Position (internal or External) and Collection Time." Journal of Agricultural and Food Chemistry, vol. 56, no. 13, 2008, pp. 5216-21.
Oliveira AP, Pereira DM, Andrade PB, et al. Free amino acids of tronchuda cabbage (Brassica oleracea L. Var. costata DC): influence of leaf position (internal or external) and collection time. J Agric Food Chem. 2008;56(13):5216-21.
Oliveira, A. P., Pereira, D. M., Andrade, P. B., Valentão, P., Sousa, C., Pereira, J. A., Bento, A., Rodrigues, M. A., Seabra, R. M., & Silva, B. M. (2008). Free amino acids of tronchuda cabbage (Brassica oleracea L. Var. costata DC): influence of leaf position (internal or external) and collection time. Journal of Agricultural and Food Chemistry, 56(13), 5216-21. https://doi.org/10.1021/jf800563w
Oliveira AP, et al. Free Amino Acids of Tronchuda Cabbage (Brassica Oleracea L. Var. Costata DC): Influence of Leaf Position (internal or External) and Collection Time. J Agric Food Chem. 2008 Jul 9;56(13):5216-21. PubMed PMID: 18553888.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Free amino acids of tronchuda cabbage (Brassica oleracea L. Var. costata DC): influence of leaf position (internal or external) and collection time. AU - Oliveira,Andreia P, AU - Pereira,David M, AU - Andrade,Paula B, AU - Valentão,Patrícia, AU - Sousa,Carla, AU - Pereira,José A, AU - Bento,Albino, AU - Rodrigues,Manuel Angelo, AU - Seabra,Rosa M, AU - Silva,Branca M, Y1 - 2008/06/13/ PY - 2008/6/17/pubmed PY - 2008/9/3/medline PY - 2008/6/17/entrez SP - 5216 EP - 21 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 56 IS - 13 N2 - The free amino acid profile of 18 samples of tronchuda cabbage (Brassica oleracea L. var. costata DC) leaves, harvested at three different months, was determined by HPLC/UV-vis. The tronchuda cabbage leaves total free amino acid content varied from 3.3 to 14.4 g/kg fresh weight. Generally, arginine was the major compound, followed by proline, threonine, glutamine, cysteine, and glutamic acid. This study indicates that free amino acids are not similarly distributed: in external leaves, proline and arginine were the major free amino acids, while in internal ones, arginine was the main free amino acid, followed by threonine, glutamine, and cysteine. Significant differences were observed for valine, proline, arginine, leucine, cysteine, lysine, histidine, and tyrosine contents. The levels of some free amino acids were significantly affected by the collection period. In external leaves, this occurred with glutamic acid, serine, valine, leucine, cysteine, and ornithine contents, while in internal leaves, it occurred with aspartic acid, arginine, and total contents. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/18553888/Free_amino_acids_of_tronchuda_cabbage__Brassica_oleracea_L__Var__costata_DC_:_influence_of_leaf_position__internal_or_external__and_collection_time_ L2 - https://doi.org/10.1021/jf800563w DB - PRIME DP - Unbound Medicine ER -