Tags

Type your tag names separated by a space and hit enter

Diverse Metabolite Variations in Tea (Camellia sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: A Metabolomics Study.
J Agric Food Chem. 2018 Feb 28; 66(8):1889-1897.JA

Abstract

With the increase of tea (Camellia sinensis) consumption, its chemical or metabolite compositions play a crucial role in the determination of tea quality. In general, metabolite compositions of fresh tea leaves including shoots depend on plucking seasons and tea cultivators. Therefore, choosing a specific plucking time of tea leaves can provide use-specified tea products. Artificial control of tea growing, typically shade treatments, can lead to significant changes of the tea metabolite compositions. However, metabolic characteristics of tea grown under various shade treatment conditions remain unclear. Therefore, the objective of the current study was to explore effects of various shade conditions on metabolite compositions of tea through a 1H NMR-based metabolomics approach. It was noteworthy that the levels of catechins and their derivatives were only influenced at the initial time of shade treatments while most amino acids were upregulated as amounts of shade and periods were increased: that is, the levels of alanine, asparagine, aspartate, isoleucine, threonine, leucine, and valine in fresh tea leaves were conspicuously elevated when shade levels were raised from 90% to 100% and when period of shade treatments was increased by 20 days. Such increased synthesis of amino acids along with large reductions of glucose level reflected carbon starvation under the dark conditions, indicating remarkable proteolysis in the chloroplast of tea leaves. This study provides important information about making amino acid-enhanced tea products based on global characteristics of diverse tea leaf metabolites induced by various shade treatment conditions.

Authors+Show Affiliations

Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea.Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea.Osulloc Tea R&D Center, Osulloc Farm Corporation , Jeju 699-820, Republic of Korea.Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea.Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea.Protein Structure Group, Korea Basic Science Institute , Cheongwon-Gu, Cheongju-Si, Chungbuk 363-883, Republic of Korea.Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea.Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29409322

Citation

Ji, Hyang-Gi, et al. "Diverse Metabolite Variations in Tea (Camellia Sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: a Metabolomics Study." Journal of Agricultural and Food Chemistry, vol. 66, no. 8, 2018, pp. 1889-1897.
Ji HG, Lee YR, Lee MS, et al. Diverse Metabolite Variations in Tea (Camellia sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: A Metabolomics Study. J Agric Food Chem. 2018;66(8):1889-1897.
Ji, H. G., Lee, Y. R., Lee, M. S., Hwang, K. H., Park, C. Y., Kim, E. H., Park, J. S., & Hong, Y. S. (2018). Diverse Metabolite Variations in Tea (Camellia sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: A Metabolomics Study. Journal of Agricultural and Food Chemistry, 66(8), 1889-1897. https://doi.org/10.1021/acs.jafc.7b04768
Ji HG, et al. Diverse Metabolite Variations in Tea (Camellia Sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: a Metabolomics Study. J Agric Food Chem. 2018 Feb 28;66(8):1889-1897. PubMed PMID: 29409322.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Diverse Metabolite Variations in Tea (Camellia sinensis L.) Leaves Grown Under Various Shade Conditions Revisited: A Metabolomics Study. AU - Ji,Hyang-Gi, AU - Lee,Yeong-Ran, AU - Lee,Min-Seuk, AU - Hwang,Kyeong Hwan, AU - Park,Clara Yongjoo, AU - Kim,Eun-Hee, AU - Park,Jun Seong, AU - Hong,Young-Shick, Y1 - 2018/02/20/ PY - 2018/2/8/pubmed PY - 2018/3/13/medline PY - 2018/2/8/entrez KW - dark KW - metabolite KW - metabolomics KW - shade KW - tea leaf SP - 1889 EP - 1897 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 66 IS - 8 N2 - With the increase of tea (Camellia sinensis) consumption, its chemical or metabolite compositions play a crucial role in the determination of tea quality. In general, metabolite compositions of fresh tea leaves including shoots depend on plucking seasons and tea cultivators. Therefore, choosing a specific plucking time of tea leaves can provide use-specified tea products. Artificial control of tea growing, typically shade treatments, can lead to significant changes of the tea metabolite compositions. However, metabolic characteristics of tea grown under various shade treatment conditions remain unclear. Therefore, the objective of the current study was to explore effects of various shade conditions on metabolite compositions of tea through a 1H NMR-based metabolomics approach. It was noteworthy that the levels of catechins and their derivatives were only influenced at the initial time of shade treatments while most amino acids were upregulated as amounts of shade and periods were increased: that is, the levels of alanine, asparagine, aspartate, isoleucine, threonine, leucine, and valine in fresh tea leaves were conspicuously elevated when shade levels were raised from 90% to 100% and when period of shade treatments was increased by 20 days. Such increased synthesis of amino acids along with large reductions of glucose level reflected carbon starvation under the dark conditions, indicating remarkable proteolysis in the chloroplast of tea leaves. This study provides important information about making amino acid-enhanced tea products based on global characteristics of diverse tea leaf metabolites induced by various shade treatment conditions. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/29409322/Diverse_Metabolite_Variations_in_Tea__Camellia_sinensis_L___Leaves_Grown_Under_Various_Shade_Conditions_Revisited:_A_Metabolomics_Study_ L2 - https://doi.org/10.1021/acs.jafc.7b04768 DB - PRIME DP - Unbound Medicine ER -