Plant extracts and compositions for reducing blood lipid levels
First Claim
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1. An extract of a plant of the genus Gynostmma obtainable by a process comprising the steps of:
- (i) providing plant material of the plant of the genus Gynostemma;
(ii) contacting the plant material of step (i) with water thereby to form a mixture of insoluble matter and aqueous extract;
(iii) separating the insoluble matter and the aqueous extract of step (ii)(iv) contacting the aqueous extract of step (iii) with n-butanol to form a mixture comprising insoluble matter and butanolic extract;
(v) separating the butanolic extract and the insoluble matter of step (iv); and
(vi) recovering the extract of a plant of the genus Gynostemma from the butanolic extract.
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Abstract
An extract of a plant of the genus Gynostemma is described. The extract is obtainable by a process wherein an aqueous extract is further extracted with n-butanol. The extract has a high level of actives, such as saponins, and/or a low level of impurities. The extract is particularly suitable for use in food or beverage compositions owing to its high purity and clean taste. Such compositions may be used to reduce the blood lipid levels of an individual and provide associated health benefits.
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Citations
19 Claims
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1. An extract of a plant of the genus Gynostmma obtainable by a process comprising the steps of:
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(i) providing plant material of the plant of the genus Gynostemma;
(ii) contacting the plant material of step (i) with water thereby to form a mixture of insoluble matter and aqueous extract; (iii) separating the insoluble matter and the aqueous extract of step (ii) (iv) contacting the aqueous extract of step (iii) with n-butanol to form a mixture comprising insoluble matter and butanolic extract; (v) separating the butanolic extract and the insoluble matter of step (iv); and (vi) recovering the extract of a plant of the genus Gynostemma from the butanolic extract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A process for manufacturing an extract of a plant of the genus Gynostmma, the process comprising the steps of:
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(i) providing plant material of the plant of the genus Gynostemma;
(ii) contacting the plant material of step (i) with water thereby to form a mixture of insoluble matter and aqueous extract; (iii) separating the insoluble matter and the aqueous extract of step (ii) (iv) contacting the aqueous extract of step (iii) with n-butanol to form a mixture comprising insoluble matter and butanolic extract; (v) separating the butanolic extract and the insoluble matter of step (iv); and (vi) recovering the extract of a plant of the genus Gynostemma from the butanolic extract.
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Specification
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Current AssigneeConopco, Inc. (Unilever PLC)
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Original AssigneeConopco, Inc. (Unilever PLC)
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InventorsBai, Birch, Fu, Yi-Cai, Si, XiangGuo
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Application NumberUS11/633,807Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current424/758CPC Class CodesA23F 3/00 Tea; Tea substitutes; Prepa...A23F 3/16 Tea extraction; Tea extract...A23L 33/105 Plant extracts, their artif...A23V 2002/00 Food compositions, function...A23V 2200/326 having effect on cardiovasc...A23V 2250/21 Plant extractsA61K 2300/00 Mixtures or combinations of...A61K 36/424 GynostemmaA61K 36/488 Pueraria (kudzu)A61K 36/82 Theaceae (Tea family), e.g....A61P 3/04 Anorexiants; Antiobesity ag...A61P 9/00 Drugs for disorders of the ...
