Abstract: It is a composition comprising young barley grass, used for promoting salivary IgA secretion, maintaining or improving oral immune function, or mucosal immune function, or preventing or alleviating upper airway infection.

Abstract: A polyphenol composition derived from Camellia sinensis and contains flavonol aglycones and flavonol glycosides, in a weight ratio [(B)/(A)] of the following total contents (B) to (A) is from 0.01 to 18, wherein (A) total content of the flavonol aglycones contained in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) total content of the polyphenols contained in solids of the polyphenol composition as measured by the ferrous tartrate method.

Abstract: A polyphenol composition derived from Camellia sinensis and contains flavonol aglycones and flavonol glycosides, in a weight ratio [(B)/(A)] of the following total contents (B) to (A) is from 0.01 to 18, wherein (A) total content of the flavonol aglycones contained in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) total content of the polyphenols contained in solids of the polyphenol composition as measured by the ferrous tartrate method.

Abstract: A polyphenol composition derived from Camellia sinensis and contains flavonol aglycones and flavonol glycosides, in a weight ratio [(B)/(A)] of the following total contents (B) to (A) is from 0.01 to 18, wherein (A) total content of the flavonol aglycones contained in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) total content of the polyphenols contained in solids of the polyphenol composition as measured by the ferrous tartrate method.

Abstract: To provide a packaged high-catechin beverage in which a low-caffeine green tea extract is added. A packaged beverage containing from 0.03 to 1.0 wt % of non-polymer catechins, in which a low-caffeine green tea extract obtained by a method of brining a green tea extract into contact with a 91/9 to 97/3 by weight mixture of an organic solvent and water, activated carbon, and acid clay or activated clay is added.

Abstract: Provided is a polyphenol composition derived from Camellia sinensis and having reduced harshness. The polyphenol composition according to the invention is derived from Camellia sinensis and contains flavonol aglycones and flavonol glycosides. A weight ratio [(B)/(A)] of the following total contents (B) to (A) is from 0.01 to 18: (A) total content of the flavonol aglycones contained in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) total content of the polyphenols contained in solids of the polyphenol composition as measured by the ferrous tartrate method.

Abstract: To provide a packaged high-catechin beverage in which a low-caffeine green tea extract is added. A packaged beverage containing from 0.03 to 1.0 wt % of non-polymer catechins, in which a low-caffeine green tea extract obtained by a method of brining a green tea extract into contact with a 91/9 to 97/3 by weight mixture of an organic solvent and water, activated carbon, and acid clay or activated clay is added.

Abstract: There are provided packaged beverages for fat-burning acceleration, energy-consumption boosting or exercise-endurance enhancement, each solution containing a green tea extract added therein and having a pH of from 2 to 7, and also containing the following ingredients (A) to (C): (A) from 0.01 to 1.0 wt % of non-polymer catechins, (B) from 0.001 to 0.5 wt % of sodium ions, and (C) from 0.001 to 0.2 wt % of potassium ions. The ingestion of these beverages can accelerate fat-burning, can boost energy consumption, or can enhance exercise endurance.

Abstract: To provide a packaged high-catechin beverage in which a low-caffeine green tea extract is added. A packaged beverage containing from 0.03 to 1.0 wt % of non-polymer catechins, in which a low-caffeine green tea extract obtained by a method of brining a green tea extract into contact with a 91/9 to 97/3 by weight mixture of an organic solvent and water, activated carbon, and acid clay or activated clay is added.