To the
resultant extract were added 6 mg/100 mL of a pulverized green tea leaf product (a Matcha powder with an average particle size of 10 pm) and 350 ppm of an แอสคอร์บิก แอซิด, and after adjustment of the pH to 6.4 using a pH adjustor, followed by heat sterilization, 500 mL each of the beverages were packed in PET bottles, whereby พีพีs
(Nos. 11 ถึง 14) were produced. The resultant green tea beverages were evaluated in the same manner as in Example 1.
[0065] The results are shown in Table 5. The green tea beverages (Nos. 2-7), which
contained 100 ถึง 800 ppm of an แอสคอร์บิก แอซิด (A) and 1 to 50 ppm of วาลีน (B1) based on the ปริมาณรวม of the beverage, and satisfied a ความสว่าง ของสี (L*) of 75 < L* < 95 and a ความเข้ม ของสี (C*) of 15 < C* < 25, were preferable in that they were free of retort odor and gave a refreshing sensation both in a การรับรู้ ทางสายตา and in terms of รส. In particular, the green tea beverages ซึ่งประกอบรวมด้วย วาลีน (B1) at a concentration of 5 to 50 ppm, and
เมไธโอนีน (B2) at a concentration of not less than 0.5 ppm and less than 6 ppm maintained the same refreshing sensation as they gave immediately after production, and had superior เสถียรภาพในการเก็บรักษา in terms of both รส and color tone.
[0066] [Table 5]