1. A composition characterized in that it comprises: a. A soy protein product having a protein content of at least 60 wt% (N · 6,25), which is completely water-soluble at acidic pH values below 4.4 and which is thermally stable in aqueous solution and at least one izpo least one calcium salt and at least one organic acid, wherein said composition is soluble in citrus juices or beverages containing citrus juice, without separating the components of the citrus juice or beve Single and rapid emergence substantially transparent upper layer liquid in the juice or napitke.2. A composition according to claim 1, characterized in that said at least one calcium salt selected from the group consisting of calcium chloride, calcium lactate and lactate-gluconate kaltsiya.3. A composition according to claim 1, characterized in that at least one organic acid is malic acid or citric kislotoy.4. The composition according to claim 1, wherein the citrus juice is orange sokom.5. A composition according to any one of claims 1-4, wherein said soy protein product has a protein content of at least 90 wt.% (N · 6,25) in dry veschestva.6. A composition according to claim 5, wherein said soy protein product has a protein content of at least 100 wt.% (N · 6,25) in dry veschestva.7. The enriched protein citrus juice or drink containing citrus juice, with dissolved therein a composition according to any one pp.1-6.8. Citrus juice or drink containing citrus juice, according to claim 7, which is enriched with protein sokom.9 orange. Citrus juice or drink containing citrus juice, according to claim 7 or 8, the composite1. Композиция, характеризующаяся тем, что содержит:соевый белковый продукт, имеющий содержание белка по меньшей мере 60 мас.% (N·6,25), который является полностью растворимым в воде при кислотных показателях рН ниже 4,4 и который является термически устойчивым в водном растворе, и по меньшей мере одни изпо меньшей мере одной соли кальция ипо меньшей мере одной органической кислоты,п
