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EP0471584A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Antioxidation active substance and utilization thereof

Assignee: Japan Pharmaceutical Development Co Ltd
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Filing: 1991-08-15
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Granted: —
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Expires: 2011-08-15
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Abstract

Abstract An antioxidant substance which is derivable from green leaves of a green plant, comprising a component which is soluble in water or substantially insoluble in n-hexane, and soluble in an aqueous ethanol solution having a water content of 0 to 80% by volume. The substance has an antioxidant activity at least as potent as α-tocopherol, and is useful as an antioxidant for use in the field of foods, and medicines. Particularly, the antioxidant substance can be used to maintain the freshness and quality of foods or storage thereof. The substance can be blended with cosmetics for skin and hair and used for the prevention of spots, freckles, chapping and sunburning.

Inventors

  • 👤 Yoshihide Hagiwara
  • 👤 Hideaki Hagiwara

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 15:09
CPC Classifications
A; A23; A23C; A23C9/00; A23C9/12; A23C9/13; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/36; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/708; A23B2/712; A23B2/717; A23B2/725; A23B2/729; A23B2/771; A23L; A23L7/00; A23L7/10; A23L7/109; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/60; A61K8/602; A61K8/96; A61K8/97; A61K8/9783; A61K8/9794; A61Q; A61Q17/00; A61Q17/04; A61Q19/00; A61Q19/02; A61Q7/00; C; C07; C07H; C07H17/00; C07H17/02; C07H17/04; C07H17/06; C07H17/065; C07H17/07; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/08; C09K15/34; C11; C11B; C11B5/00; C11B5/0085; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/522

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 42 words
An antioxidant substance which is derivable from green leaves of a green plant, comprising a component which is soluble in water or substantially insoluble in n-hexane, and soluble in an aqueous ethanol solution having a water content 0 to 80% by volume.
Claim 2
Dependent Claim 27 words
An antioxidant substance according to claim 1 wherein said component is soluble in an aqueous methanol solution having a water content of 0 to 80% by volume.
Claim 3
Dependent Claim 26 words
A antioxidant substance according to claim 2, wherein said component is soluble in an aqueous methanol solution having a water content 10 to 70% by volume.
Claim 4
Dependent Claim 30 words
An antioxidant substance according to claim 1, 2 or 3 wherein said component is soluble in an aqueous ethanol solution having a water content of 15 to 50% by volume.
Claim 5
Dependent Claim 18 words
An antioxidant substance according to any one of the preceding claims, wherein said green plant is a cereal.
Claim 6
Dependent Claim 4 words
2′-O-Glucosyl-isovitexin represented by formula:
Claim 7
Dependent Claim 4 words
An antioxidant comprising 2′-O-glucosyl-isovitexin.
Claim 8
Dependent Claim 41 words
An agent for use in maintaining or retaining the freshness or quality of foods, comprising an antioxidant substance as claimed in any one of claims 1 to 5 or 2′-O-glucosyl-isovitexin as claimed in claim 6 or 7 as an active ingredient.
Claim 9
Dependent Claim 25 words
A foodstuff comprising an antioxidant substance as claimed in any one of claims 1 to 5, or 2′-O-glucosyl-isovitexin as claimed in claim 6 or 7.
Claim 10
Dependent Claim 33 words
A cosmetic for skin or hair, comprising an antioxidant substance as claimed in any one of claims 1 to 5, or 2′-O-glucosyl-isovitexin as claimed in claim 6 or 7 as an active ingredient.

References Cited (Backward Citations)

EP0271133A1 Cited

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