Powdered green tea extract composition

A powdered green tea extract composition, comprising the following components (A), (B), and (C):

• (A) non-polymer catechins;
• (B) quinic acid;
• and
• (C) a polysaccharide,
• wherein:
• the powdered green tea extract composition has a volatile content of 5.6 mass % or less,
• a mass ratio of the component (B) to the component (A), [(B)/(A)], is less than 0.2,
• a mass ratio of the component (C) to the component (A), [(C)/(A)], is 1.2 or more,
• when an absolute value (Δa*) of a difference between an a* value in an L*a*b* color system of the powdered green tea extract composition after storage under an atmosphere of 37° C. and 50% RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production is obtained, the Δa* of the powdered green tea extract composition is a value less than Δa* of a powdered green tea extract composition α which has the same mass ratio [(B)/(A)] as the mass ratio [(B)/(A)] of the powdered green tea extract composition, and which is free of the component (C), and
• a change rate calculated by the following expression (2) is 5% or more:
• (Δa*−Δa1*)/Δa*×100 (2)
• where Δa1* represents the absolute value of the difference between the a* value in the L*a*b* color system of the powdered green tea extract composition after storage under the atmosphere of 37° C. and 50% RH for 6 weeks and the a* value in the L*a*b* color system of the powdered green tea extract composition immediately after production, and Δa* represents an absolute value of a difference between an a* value in the L*a*b* color system of the powdered green tea extract composition α after storage under the atmosphere of 37° C. and 50% RH for 6 weeks and an a* value in the L*a*b* color system of the powdered green tea extract composition a immediately after production.