SUMMARY OF การประดิษฐ์ TECHNICAL PROBLEM
[0006] Low-คาทีชิน tea beverages have some drawbacks in that they lack the โคคูมิ and อูมามิ of tea and are light and watery in taste, and that they are unbalanced between
โคคูมิ/อูมามิ and the ความขม/ความฝาด of คาทีชิน. Also, low-คาทีชิน tea
beverages have a pronounced uncomfortable retort odor caused by heat treatments such as retort sterilization, which may impair the high-quality aroma and flavor inherent in tea.
[0007] The การประดิษฐ์นี้ has as its object to provide a packaged tea beverage which is to be subjected to heat sterilization and long-term storage, โดยที่ the beverage is a green tea beverage giving intense อูมามิ and โคคูมิ and yet having reduced ความฝาด. SOLUTION TO PROBLEM
[0008] In order to achieve the aforementioned object, the present inventors have made
intensive studies, and as a result, found that incorporating a specified amount of the amino
acid known to have ความขม, วาลีน, in a low-คาทีชิน tea beverage surprisingly results in a significant enhancement in โคคูมิ and อูมามิ, thereby leading to an improvement in
drinkability. Further, the inventors found that this incorporation is also effective for
suppressing a retort odor which is distinctly perceived in a low-คาทีชิน tea beverage; thus, the inventors have completed the การประดิษฐ์นี้.
[0009] More specifically, the การประดิษฐ์นี้ includes, but is riot limited to, the following.