Production of Turmeric Oleoresin Microcapsules by Complex Coacervation with Gelatin-Gum Arabic

Autor(es)

Cirelli Zuanon, Larissa Angelica ^[1] ; Malacrida, Cassia Roberta ^[1] ; Nicoletti Telis, Vania Regina ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Dept Engn & Tecnol Alimentos, BR-15054000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF FOOD PROCESS ENGINEERING; v. 36, n. 3, p. 364-373, JUN 2013.
• Citações Web of Science: 38

Resumo

Turmeric oleoresin is a colorant prepared by solvent extraction of turmeric (Curcuma longaL.). Curcumin, the major pigment present in turmeric, has been described as a potent antioxidant, anti-inflammatory and anticarcinogenic agent. Turmeric pigments are lipid soluble and water insoluble and are sensitive to light, heat, oxygen and pH, which can be overcome by microencapsulation of turmeric oleoresin. The aim of this work was to investigate microencapsulation of turmeric oleoresin by complex coacervation using gelatin and gum Arabic as encapsulants and freeze-drying as the drying method. The coacervation process was studied by varying the concentration of biopolymer solution (2.5, 5.0 and 7.5%) and the core material:total encapsulant ratio (25, 50, 75 and 100%). Microcapsules were evaluated for encapsulation efficiency, morphology, solubility and stability to light. Encapsulation efficiency ranged from 49 to 73% and samples produced with 2.5% of wall material and 100% core:encapsulant ratio showed better stability to light. Practical Applications This paper presents an optimized method to encapsulate turmeric oleoresin by complex coacervation using gelatin and gum Arabic as wall materials, producing dry colorant microcapsules with improved solubility in aqueous formulations. (AU)

• Processo FAPESP: 09/16847-7 - Estabilidade da oleoresina de cúrcuma (Curcuma longa L.) microencapsulada em matrizes de gelatina, maltodextrina e amido modificado
• Beneficiário: Cassia Roberta Malacrida Mayer
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 10/09614-3 - Efeito das propriedades físico-químicas das matrizes encapsulantes e da aplicação de ultrassom na estabilidade da oleoresina de cúrcuma (Curcuma longa L.) microencapsulada
• Beneficiário: Vânia Regina Nicoletti Telis
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/04269-6 - Microencapsulação de Oleoresina de Cúrcuma (Curcuma longa L.) em Matrizes de Gelatina, Goma Arábica e Colágeno Hidrolisado
• Beneficiário: Larissa Angélica Cirelli Zuanon Sardella
• Modalidade de apoio: Bolsas no Brasil - Mestrado