The present invention relates to a black tea product comprising a preservative composition, wherein the black tea product is a ready-to-drink beverage or a beverage concentrate, wherein the preservative composition comprises at least 3 compounds selected from: hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol and methyl salicylate.

The present invention relates to a preservative composition consisting of at least 3 compounds selected from: hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol and methyl salicylate, and also to a preserved foodstuff comprising such a preservative composition.

An extract liquid production method, comprising: using deionized water to extracting a material to be extracted with deionized water, and discharging an extract solution after extraction is completed to obtain extract residues; adding deionized water to the extract residues to perform extraction, and discharging the extract solution after extraction is completed; optionally, repeating step two; and mixing the extract solutions obtained in the previous steps together to obtain an extract liquid. The present application also relates to an extract liquid obtained by the method, and a container-packed beverage obtained directly from or by diluting the extract liquid. In the present method, multiple extractions are carried out, thereby effectively increasing the extraction yield, reducing product cost, shortening the extraction time, and improving production efficiency, and also effectively inhibiting the dissolution of bitter substances, thus improving the flavor of the beverage.

The present invention relates to a tea beverage that contains (a) an amount of a natural sugar corresponding to a sweetness intensity X1, (b) an amount of a high-sweetness sweetener corresponding to a sweetness intensity X2, (c) less than 50 mg of sodium per 100 ml of said tea beverage, and (d) 0.1-32 mg of potassium per 100 ml and/or 0.1-32 mg of calcium per 100 ml of said tea beverage. The high-sweetness sweetener includes at least one high-sweetness sweetener b1 selected from the group consisting of rebaudioside M, rebaudioside D, rebaudioside N, rebaudioside O, rebaudioside E, a Siraitia grosvenorii extract, mogroside V, and thaumatin. The tea beverage satisfies 0.1<(X1+X2)≤20.

An upward flow extraction method, apparatus, and extract are disclosed. The upward flow extraction method can comprise loading extraction material into an extraction cell having a bottom portion and a top portion; introducing a first aliquot of extraction medium through the bottom portion of the extraction cell; expelling gas from the extraction cell through the top portion of the extraction cell; closing the top portion of the extraction cell and increasing the pressure in the extraction cell as extraction medium flows into the bottom portion of the extraction cell; stopping the flow of extraction medium into the extraction cell; steeping the extraction material in the extraction medium under pressure to produce an extract; and introducing a second aliquot of extraction medium through the bottom portion of the extraction cell to push extract through top portion of the extraction cell.

Provided is a plant extract-containing composition for reducing skin damage caused by ultraviolet radiation. The composition includes a combination of extracts of spinach, black tea, green tea, Pu-erh tea, Four Seasons Spring tea, red wine, blueberry, grape seeds, citrus, or green coffee beans.

Provided is a beverage composition, including: non-polymer catechins; and caffeine, the beverage composition satisfying the following requirements (A), (B), and (C): (A) a mass ratio of caffeine/non-polymer catechins is 0.130 or less; (B) particles contained in the beverage composition have an average particle size of 3 μm or less; and (C) a turbidity is 30 NTU or more.

An upward flow extraction method, apparatus, and extract are disclosed. The upward flow extraction method can comprise loading extraction material into an extraction cell having a bottom portion and a top portion; introducing a first aliquot of extraction medium through the bottom portion of the extraction cell; expelling gas from the extraction cell through the top portion of the extraction cell; closing the top portion of the extraction cell and increasing the pressure in the extraction cell as extraction medium flows into the bottom portion of the extraction cell; stopping the flow of extraction medium into the extraction cell; steeping the extraction material in the extraction medium under pressure to produce an extract; and introducing a second aliquot of extraction medium through the bottom portion of the extraction cell to push extract through top portion of the extraction cell.

Capsules contain in their interior a water-based substance, and are coated with a film of alginate of an alkaline earth metal selected from calcium and magnesium. The capsules are of a larger size than previous capsules, while maintaining their sphericality. The capsules of water-based substances are obtained by incubating the capsules in suspension.

Provided is a production method for a composition containing non-polymer catechins, including the following step (A): (A) a step of bringing tea leaves into contact with an aqueous solution having a Brix of from 0.2% to 1.0% at from 80° C. to 100° C.