Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Beverage or beverage concentrate
Patent
1999-06-23
2000-09-12
Pratt, Helen
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Beverage or beverage concentrate
426 74, 426518, 426573, 424156, A23L 10534, A23L 1304, A23L 200
Patent
active
061174742
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an aqueous suspension composition comprising a fine cellulose and a water-insoluble calcium, which composition is added to foods or the like to reinforce calcium or impart cloudiness, or added to coating materials or the like as a filler. The present invention also relates to a process for preparing the aqueous suspension composition. The present invention further relates to a water-dispersible dry composition which permits re-dispersion of the fine cellulose and water-insoluble calcium by stirring in water.
Furthermore, the present invention relates to a food composition comprising the aqueous suspension composition or water-dispersible dry composition.
BACKGROUND ART
Some attempts have so far been made to stably suspend water-insoluble calcium in water. Examples include a process which comprises treating calcium carbonate with a hydrophilic emulsifier (JP-B-2-31942 (the term "JP-B" as used herein means an "examined published Japanese patent publication")), a process which comprises stirring a slightly water soluble calcium salt together with an oxy acid, thereby obtaining the calcium salt having an average particle size of 1 .mu.m, and then adding a hydrophilic emulsifier to the resulting mixture (JP-A-8-107772 (the term "JP-A" as used herein means an "unexamined published Japanese patent application)), and a process which comprises treating a mixture of calcium carbonate and an emulsifier in a high-pressure homogenizer, thereby finely dispersing the mixture (JP-A-8-205820).
When the water-insoluble calcium salt is finely dispersed by any one of the above-exemplified processes, the sedimentation velocity becomes slow, but it sediments after allowed to stand for a certain time and forms a hard cake. Therefore, it is difficult to obtain a suspended state again.
JP-B-57-35945 and JP-B-63-29973 disclose a beverage which becomes free from the sedimentation of calcium due to the addition of crystalline cellulose. However, these techniques are accompanied by problems. For example, since the conventionally employed crystalline cellulose has a large particle size and the crystalline cellulose and calcium are not subjected to a co-grinding treatment, the effects of preventing sedimentation are not sufficient. In addition, a coarse texture is felt upon drinking the beverage.
An object of the present invention is to provide an aqueous suspension composition which is free from the sedimentation of the water-insoluble calcium material contained in the composition and which exhibits a stable dispersion state when added to foods, including a beverage, for the reinforcement of calcium or when added to coatings or the like as a filler. Another object of the present invention is to provide a preparation process for the aqueous suspension composition. Another object of the present invention is to provide a water-dispersible dry composition which permits re-dispersion of the water-insoluble calcium material and which exhibits a stable dispersion state without sedimentation by stirring in water.
Still another object of the present invention is to provide a food composition which has a water-insoluble calcium material stably dispersed therein by incorporating the aqueous suspension composition or the water-dispersible dry composition.
DISCLOSURE OF THE INVENTION
The present inventors have found that the above-described problem can he solved by forming a composite of a water-insoluble calcium material and a fine cellulose, leading to the completion of the present invention.
The present invention therefore provides:
1) An aqueous suspension composition containing at least 20 wt. % of a fine cellulose and a water-insoluble calcium material which have been subjected to a wet co-grinding treatment, having a weight ratio of the fine cellulose to the water-insoluble calcium material of from 1/9 to 9/1, and wherein not greater than 40% of the particles have a particle size of at least 10 .mu.m.
2) The aqueous suspension composition according to the above 1), wherein the fine cell
REFERENCES:
patent: 4744987 (1988-05-01), Mehra et al.
Kamada Etsuo
Mochihara Nobuyoshi
Asahi Kasei Kogyo Kabushiki Kaisha
Pratt Helen
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