A lutein microcapsule formulation and preparation method thereof, the formulation comprising the following ingredients: lutein crystals, a water-soluble emulsifier, an oil-soluble antioxidant, a wall material, a filler, a water-soluble antioxidant, and purified water. The preparation method comprises: dissolving the lutein crystals and the oil-soluble antioxidant in the water-soluble emulsifier to obtain an oil phase; adding the wall material, the water-soluble antioxidant, and the filler to the purified water to obtain a water phase; adding the oil phase to the water phase, grinding to obtain a particle size of the liquid emulsion of less than 100 nm, and granulating.

A lutein microcapsule formulation and preparation method thereof, the formulation comprising the following ingredients: lutein crystals, a water-soluble emulsifier, an oil-soluble antioxidant, a wall material, a filler, a water-soluble antioxidant, and purified water. The preparation method comprises: dissolving the lutein crystals and the oil-soluble antioxidant in the water-soluble emulsifier to obtain an oil phase; adding the wall material, the water-soluble antioxidant, and the filler to the purified water to obtain a water phase; adding the oil phase to the water phase, grinding to obtain a particle size of the liquid emulsion of less than 100 nm, and granulating.

Catechin compound(s)-containing beverages having reduced bitterness and astringency of catechin compound(s) while maintaining tea-like preferable flavors, methods of production thereof, and the like are provided. The content of catechin compound(s) in a beverage is adjusted to within a certain range, the total content of RebM and RebD in the beverage is adjusted to within a certain range, and the weight ratio of the total content of RebD and RebM to the content of the catechin compound(s) is adjusted to within a certain range.

Catechin compound(s)-containing beverages having reduced bitterness and astringency of catechin compound(s) while maintaining tea-like preferable flavors, methods of production thereof, and the like are provided. The content of catechin compound(s) in a beverage is adjusted to within a certain range, the total content of RebM and RebD in the beverage is adjusted to within a certain range, and the weight ratio of the total content of RebD and RebM to the content of the catechin compound(s) is adjusted to within a certain range.

A material which has excellent ammonia metabolism improving effect and is effective for endurance enhancement, anti-fatigue or the like is provided. An ammonia metabolism promoting agent, comprising catechins and ornithine as active ingredients. An endurance enhancing agent, comprising catechins and ornithine as active ingredients. An anti-fatigue agent, comprising catechins and ornithine as active ingredients. An agent for suppressing a reduction in blood glucose level by exercise, comprising catechins and ornithine as active ingredients. An agent for promoting recovery from reduced blood glucose level by exercise, comprising catechins and ornithine as active ingredients. An agent for suppressing a reduction in muscle glycogen by exercise, comprising catechins and ornithine as active ingredients. A muscle endurance enhancing agent, comprising catechins and ornithine as active ingredients. An agent for preventing or ameliorating hyperammonemia, hepatic encephalopathy or chronic fatigue syndrome, comprising catechins and ornithine as active ingredients.

A material which has excellent ammonia metabolism improving effect and is effective for endurance enhancement, anti-fatigue or the like is provided. An ammonia metabolism promoting agent, comprising catechins and ornithine as active ingredients. An endurance enhancing agent, comprising catechins and ornithine as active ingredients. An anti-fatigue agent, comprising catechins and ornithine as active ingredients. An agent for suppressing a reduction in blood glucose level by exercise, comprising catechins and ornithine as active ingredients. An agent for promoting recovery from reduced blood glucose level by exercise, comprising catechins and ornithine as active ingredients. An agent for suppressing a reduction in muscle glycogen by exercise, comprising catechins and ornithine as active ingredients. A muscle endurance enhancing agent, comprising catechins and ornithine as active ingredients. An agent for preventing or ameliorating hyperammonemia, hepatic encephalopathy or chronic fatigue syndrome, comprising catechins and ornithine as active ingredients.

A leaf bruising machine and method for tea inluding frame, bruising basket, rotating door, locking assembly, and drive control mechanism. Bruising basket is rotatably disposed on frame, and has feed, discharge opening, and accommodating cavity. Rotating door is arranged at bruising basket outer side. Position limiting hole is provided on rotating door. Bruising basket rotates relative to rotating door. Rotating door blocks or opens feed and discharge opening. Locking assembly having spring-loaded ball latch and electromagnetic switch. Drive control mechanism comprises rotation drive device and controller. Rotation drive device is connected to bruising basket to drive bruising basket rotation. Leaf bruising machine bruises tea leaves. When feed and discharge opening is opened or sealed, bruising basket and rotating door is locked by electromagnetic switch and spring-loaded ball latch cooperation. Automated opening and closing of rotating door, and feeding, discharging, and bruising process control is enabled to improve efficiency.

Beverages having an improvement in continuity of aftertaste caused by Rebaudioside D (RebD) and Rebaudioside M (RebM) and methods of production thereof. A content (A) of catechin compound(s) in beverages is adjusted to within a certain range, a total content (B) of RebM and/or RebD in beverages is adjusted to within a certain range, and B/A is adjusted to within a certain range.

Beverages having an improvement in continuity of aftertaste caused by Rebaudioside D (RebD) and Rebaudioside M (RebM) and methods of production thereof. A content (A) of catechin compound(s) in beverages is adjusted to within a certain range, a total content (B) of RebM and/or RebD in beverages is adjusted to within a certain range, and B/A is adjusted to within a certain range.

Provided is an oral composition, including the following components (A), (B), and (C): (A) non-polymer catechins; (B) rutin; and (C) astragalin, wherein a content of the component (A) in solids is from 2 mass % to 50 mass %, wherein a mass ratio between the component (A) and the component (B), [(B)/(A)], is from 0.05×10.sup.−2 to 50×10.sup.−2, and wherein a mass ratio between the component (A) and the component (C), [(C)/(A)], is from 1.0×10.sup.−3 to 50×10.sup.−3.