摘要:
Provided is a beverage e.g. tea, containing a high concentration of catechins and at the same time having an improved taste with alleviated bitterness and astringency and smooth throat-feel upon drinking. The beverage has the following non-polymer component (A), another non-polymer component (B), and component (C): (A) non-epi-catechins, (B) epi-catechins, (C) water-soluble polymers; and has, per 500 mL of the beverage, these components in amounts satisfying the following equations: (i) (A)+(B)=300 to 2500 mg; (ii) (A)=70 to 2250 mg; (iii) (A)/(B) (by weight)=0.25 to 9.0; and (iv) (C)/((A)+(B)) (by weight)=1/20 to 10/1.
摘要:
A non-tea-based, packaged beverage with a green tea extract mixed therein contains the following ingredients (A) and (B):(A) 0.06 to 0.5 wt. % of non-polymer catechins, and(B) 9 to 13.5 mM of citric acid or a salt thereof. Its pH is from 3.4 to 4.2. The non-tea-based, packaged beverage contains catechins at a high concentration, is reduced in bitterness and astringency, is suited for long-term drinking, and is excellent in the stability of bitterness and astringency and also in the feeling as it passes down the throat, and moreover, its color tone remains stable over a long term even when packed in a clear package and stored at high temperatures.
摘要:
A process for selectively removing caffeine from a caffeine-containing catechin composition, which includes dissolving the caffeine-containing catechin composition in a 9/1 to 1/9 by weight mixed solution of an organic solvent and water, and then bringing the resultant solution into contact with activated carbon alone or with activated carbon and also acid clay or activated clay; and a packaged beverage containing such a decaffeinated composition.
摘要:
The present invention provides refined roasted coffee beans having a Hunter L value of 10 to 30 and a hydroxyhydroquinone content of not higher than 30 mg/kg by contacting an aqueous solvent with raw material roasted coffee beans. The invention also provides a process for producing refined roasted coffee beans, which includes contacting raw material roasted coffee beans having a Hunter L value of 12 to 35, with coffee bean-derived extract-containing water selected from water containing an extract derived from roasted coffee beans having a Hunter L value of 40 or more and water containing an extract derived from raw coffee beans.
摘要:
Provided is a concentrated coffee extract solution having a rich sweet aroma and a clear aftertaste. The concentrated coffee extract solution contains the following components (A) and (B): (A) at least one pyrazine selected from 2-methylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethylpyrazine, 2-ethyl-5-methylpyrazine, 2-ethyl-6-methylpyrazine, 2-ethyl-3-methylpyrazine, 2-ethyl-3,5-dimethylpyrazine and 3,5-dimethyl-2-methylpyrazine, and (B) at least one guaiacol selected from guaiacol, 4-ethylguaiacol and 4-vinylguaiacol. A content weight ratio [(B)/(A)] of the component (B) to the component (A) is 0.6 or smaller.
摘要:
To provide a packaged coffee beverage, which contains chlorogenic acids at high concentration, has good flavor and taste, and is suppressed in the occurrence of sediment during long-term storage. A packaged coffee beverage subjected to heat sterilization treatment, the beverage comprising (A) monocaffeoylquinic acid, (B) feruloylquinic acid and (C) dicaffeoylquinic acid, wherein (a) a total content of the ingredients (A), (B) and (C) contained in dissolved states in the beverage is from 0.14 to 4% by weight based on the beverage, and the beverage comprises (b) 80% by weight or more of water, (c) magnesium and sodium at a Mg/Na weight ratio of from 0.04 to 1, (d) a coffee extract obtained from roasted coffee beans having an L value of form 16 to 25, and (e) from 0.0024 to 0.0122% by weight of brown color in terms of Food Yellow No. 4.
摘要:
Provided is a packaged beverage comprising the following ingredients (A) and (B): (A) non-polymer catechins in an amount of from 0.092 to 0.5 g/100 mL beverage, (B) an alcoholic precipitate in an amount of 0.015 g/100 mL beverage or less in terms of the amount of magnesium, at a weight ratio (A)/(B) ranging from 30/1 to 50000/1. The packaged beverage of the present invention is the best suited beverage for health promotion, because drinking of it permits transfer of a large amount of catechins to the blood form the beverage and their absorption in the body is excellent.
摘要:
A method for supporting a catalyst for a polymer electrolyte fuel cell includes the steps of making a catalyst layer including a catalyst precursor, the catalyst layer to be used as either an anode catalyst layer or a cathode catalyst layer, arranging the catalyst layer with a polymer electrolytic membrane having proton conductivity in a thickness direction, and performing an electrochemical reductive reaction for reducing the catalyst precursor included in the catalyst layer to produce a catalyst and concomitantly developing a catalyst particle layer having a plurality of catalyst microparticles in the polymer electrolytic membrane. An electrode is made by turning a harness such that the electrode has a predetermined area for detecting capacitance.
摘要:
Provided is a concentrated coffee composition containing chlorogenic acids at a high concentration and having good taste or flavor. The concentrated coffee composition of the present invention contains the following components (A) and (B): 100 to 300 mg/g of chlorogenic acids (A) in dry solids content; and not more than 0.33 mg/g of 5-hydroxymethylfurfural (B) in dry solids content, wherein the dry solids content is 10 to 100 mass %.
摘要:
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.