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Soro de leite

Proteína Láctea e Subproduto Lácteo
Seguro / Fonte de Proteínas NOVA 1: In Natura ou Minimamente Processado

O soro de leite é o líquido remanescente da coagulação do leite durante a produção de queijos. Rico em proteínas solúveis (como alfa-lactoalbumina e beta-lactoglobulina), cálcio e minerais, é amplamente utilizado na indústria nutricional e alimentícia devido ao seu excelente valor biológico e capacidade de promover síntese muscular.

Pontos de Atenção & Riscos

  • Presença de Lactose: Pode causar desconforto abdominal, distensão, gases e diarreia em pessoas com intolerância à lactose.
  • Risco de Alergia (APLV): Contraindicado para indivíduos com alergia à proteína do leite de vaca devido à presenças de beta-lactoglobulina e lactoalbumina.

Pontos Positivos & Vantagens

  • Proteínas de Alto Valor Biológico: Fornece aminoácidos essenciais e BCAA de rápida digestão, fundamentais para a recuperação e síntese de massa muscular.
  • Rico em Minerais e Peptídeos: Contém cálcio, fósforo e imunoglobulinas que auxiliam na densidade óssea e no fortalecimento do sistema imune.
  • Sustentabilidade Alimentar: Reaproveita um subproduto volumoso da indústria queijeira, transformando-o em ingrediente de alto teor nutritivo.
Origem da Matéria-Prima

Subproduto Lácteo Natural

Obtido a partir do fracionamento do leite bovino durante o processo de fabricação de queijos por ação enzimática ou ácida.

Função na Indústria

Agregador Nutricional e Texturizante

Enriquece o teor proteico, melhora a retenção de umidade e otimiza a textura de panificados, bebidas e lácteos.

Impacto na Microbiota

Efeito Prebiótico Moderado

Contém lactose e oligossacarídeos lácteos que podem servir como substrato para bifidobactérias em indivíduos tolerantes.

Marcador NOVA / Clean Label

Ingrediente Natural

Trata-se de um alimento natural e nutritivo, embora sua versão em pó desidratada seja frequentemente incorporada em ultraprocessados.

Encontrado Nestes Produtos

Dossiê Científico

Diretrizes de Saúde & Consenso Científico

A FAO e a OMS classificam as proteínas do soro lácteo entre as de maior escore nutricional (PDCAAS/DIAAS), superando fontes vegetais isoladas em eficiência proteica.

Metabolismo & Absorção no Organismo

As proteínas do soro são rapidamente hidrolisadas no estômago e absorvidas no intestino delgado, gerando uma elevação rápida na concentração plasmática de aminoácidos.

Posicionamento Regulatório (ANVISA / FDA / EFSA)

Ingrediente reconhecido como seguro (GRAS) pelo FDA, aprovado pela EFSA e regulamentado no Brasil pelo MAPA e pela ANVISA.

Perguntas Frequentes

Ficha Técnica & Nomenclatura

Nome Químico / Botânico
Soro de Leite / Liquid or Powdered Whey
Fórmula Molecular
Mistura complexa: Água (~93%), Lactose (~5%), Proteínas (~0,8%), Sais Minerais (~0,5%)
Número CAS
92129-90-3
Poder / Propriedade Chave
Sabor suave adocicado e levemente salino
Solubilidade
Altamente solúvel em água
Estabilidade Térmica
Termossensível; desnaturação proteica inicia-se acima de 65°C
Escanear Rótulo de Alimento Ver Outros Produtos Analisados