Home           Contact us           FAQs           
 
   Journal Page   |   Aims & Scope   |   Author Guideline   |   Editorial Board   |   Search
    Abstract
2014 (Vol. 6, Issue: 4)
Article Information:

Research on the Release of Theanine in the Exist of Metal Ions in Natural Water

Zhi-xu Zhang, Chao Chang, Cheng-wen Shen and Dong-bo Liu
Corresponding Author:  Dong-Bo Liu 

Key words:  Complexation, metal ion, natural water, tea, theanine, ,
Vol. 6 , (4): 490-494
Submitted Accepted Published
December 13, 2013 January 01, 2014 April 10, 2014
Abstract:

Theanine is a main component in tea leaf, it is the key factor to influence the nutrition value and flavor when the tea leaf is brewing. Natural water is the most-used extractant to dissolve out the theanine. It is recorded in ancient books that dissolution rate is quite different in different kinds of natural water. Recent study shows its correlation with the complexing abilities of metal ions. The thesis is trying to explain the law between the release of theanine and metal ions through designed model test. Response surface experiments showed that in the mixed solution of 1.74 mg/L Ca2+, 21.63 mg/L Na+, 5.55 mg/L Mg2+ and 4.86 mg/L Al3+., the release of theanine reaches the peak value 0.88 mg/mL. It is also found that in the exist of Ca2+, free theanine is increasing with total metal ions while free theanine is decreasing with the increasement of total metal ions in the absence of Ca2+.
Abstract PDF HTML
  Cite this Reference:
Zhi-xu Zhang, Chao Chang, Cheng-wen Shen and Dong-bo Liu, 2014. Research on the Release of Theanine in the Exist of Metal Ions in Natural Water.  Advance Journal of Food Science and Technology, 6(4): 490-494.
    Advertise with us
 
ISSN (Online):  2042-4876
ISSN (Print):   2042-4868
Submit Manuscript
   Current Information
   Sales & Services
   Contact Information
  Executive Managing Editor
  Email: admin@maxwellsci.com
  Publishing Editor
  Email: support@maxwellsci.com
  Account Manager
  Email: faisalm@maxwellsci.com
  Journal Editor
  Email: admin@maxwellsci.com
  Press Department
  Email: press@maxwellsci.com
Home  |  Contact us  |  About us  |  Privacy Policy
Copyright © 2009. MAXWELL Science Publication, a division of MAXWELLl Scientific Organization. All rights reserved