[0059] Example 2
To the light-colored tea beverage No. 4 produced in Example 1, L-เมไธโอนีน
(Ajinomoto Healthy Supply Co., Inc.) was added to give green tea beverages with different เมไธโอนีน concentrations (Nos. 8 ถึง 10). These beverages were subjected to heat
sterilization, followed by component analysis and drinking tests made by ผู้ทดสอบห้าคน in the same manner as in Example 1.
[0060] The results are shown in Table 3. It was found that there was a tendency where addition of เมไธโอนีน inhibited the capability of วาลีน to increase the refreshing sensation of a light-colored tea beverage. As compared to the beverage No. 4 in terms of refreshing sensation, the beverage No. 9 was rated as not much different by three of the ผู้ทดสอบห้าคน, but the beverage No. 10 was rated as apparently lacking in refreshing sensation by all of the ผู้ทดสอบห้าค. This suggested that it is desirable to adjust the เมไธโอนีน concentration to less than 6 ppm (ทททคือ less than 5 ppm) in the case of a light-colored tea beverage
ซึ่งประกอบรวมด้วย a specified concentration of วาลีน.
[0064] Unroasted green tea leaves (crude Yabukita tea leaves picked in the third round of the season) were sprayed and impregnated by stirring with the วาลีน-containing liquid green tea concentrate at a weight ratio of tea leaves to วาลีน-containing concentrate of 1:0.2.
Thereafter, the tea leaves were dried by roasting under the following สภาวะ to give
วาลีน-rich tea leaves.
[0059] Example 2To the light-colored tea beverage No. 4 produced in Example 1, L-เมไธโอนีน(Ajinomoto Healthy Supply Co., Inc.) was added to give green tea beverages with different เมไธโอนีน concentrations (Nos. 8 ถึง 10). These beverages were subjected to heat sterilization, followed by component analysis and drinking tests made by ผู้ทดสอบห้าคน in the same manner as in Example 1.[0060] The results are shown in Table 3. It was found that there was a tendency where addition of เมไธโอนีน inhibited the capability of วาลีน to increase the refreshing sensation of a light-colored tea beverage. As compared to the beverage No. 4 in terms of refreshing sensation, the beverage No. 9 was rated as not much different by three of the ผู้ทดสอบห้าคน, but the beverage No. 10 was rated as apparently lacking in refreshing sensation by all of the ผู้ทดสอบห้าค. This suggested that it is desirable to adjust the เมไธโอนีน concentration to less than 6 ppm (ทททคือ less than 5 ppm) in the case of a light-colored tea beverageซึ่งประกอบรวมด้วย a specified concentration of วาลีน.[0064] Unroasted green tea leaves (crude Yabukita tea leaves picked in the third round of the season) were sprayed and impregnated by stirring with the วาลีน-containing liquid green tea concentrate at a weight ratio of tea leaves to วาลีน-containing concentrate of 1:0.2. Thereafter, the tea leaves were dried by roasting under the following สภาวะ to give วาลีน-rich tea leaves.
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