In this study, we investigated the effects of various temperatures between 140 to 260 degrees C during sub-critical water extraction of residual green tea in making a roasted green tea-like extract, a popular beverage in Japan. Each residual green tea extract was analyzed for sensory properties and antioxidative activities, and this revealed 140 degrees C to be the best extraction temperature. ...

a r t i c l e i n f o Focused breathing Executive control We examined the potential effectiveness of four brief interventions, three behavioral and one nutritional, for helping high math-anxious college students regulate negative emotions immediately prior to a time-pressured arithmetic test. Participants with low versus high math anxiety performed a timed arithmetic task after practicing one o...

In the title zwitterion, C(7)H(14)N(2)O(3), the ethyl-amino and the 5-oxo groups are positionally disordered with occupancy ratios of 0.50:0.50 and 0.70:0.30, respectively. The terminal ethyl -CH(3) group undergoes considerable thermal motion. In the crystal, mol-ecules are linked via N-H⋯O hydrogen bonds, forming a two-dimensional arrangement propagating in the bc plane.

Oolong tea, one of the most famous tea beverages in China, contains specialized metabolites contributing to rich flavors and human health. Accumulation patterns such underlying regulatory mechanisms significantly vary under different growth conditions. To optimize quality yield while minimizing environmental effects, three treatments were designed this study: Conventional fertilization, optimiz...

Background: Theanine, which is hydrolyzed into glutamic acid (Glu), excerts beneficial effects on organ metabolism. However, there is little scientific evidence that Glu influences inflammatory mediator such as tumor necrosis factor (TNF)-α and nitric oxide (NO).In inflamed liver, proinflammatory cytokines stimulate liver cells, followed by the induction of inducible NO synthase (iNOS). Excessi...

Tea (Camellia sinensis) is a historically and economically important beverage for Sri Lanka; traditionally believed to have relaxing or calming effects. Some evidence attributes these effects constituent of tea leaves; L-theanine, non-protein-forming amino acid structurally similar glutamic acid. Over the years, research has found L-theanine also on various cognitive functions, including attent...