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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
Cirelli Zuanon, Larissa Angelica [1] ; Malacrida, Cassia Roberta [1] ; Nicoletti Telis, Vania Regina [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista, UNESP, Dept Engn & Tecnol Alimentos, BR-15054000 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF FOOD PROCESS ENGINEERING; v. 36, n. 3, p. 364-373, JUN 2013.
Web of Science Citations: 38
Abstract

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)

FAPESP's process: 09/16847-7 - Stability of turmeric oleoresin (Curcuma longa L.) microencapsulated in gelatin, maltodextrin and modified starch matrices
Grantee:Cassia Roberta Malacrida Mayer
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 10/09614-3 - Effect of physical-chemical properties of the encapsulating matrices and of ultrasound application on the stability of microencapsulated turmeric (Curcuma longa L.) oleoresin
Grantee:Vânia Regina Nicoletti Telis
Support Opportunities: Regular Research Grants
FAPESP's process: 10/04269-6 - Microencapsulation of turmeric oleoresin (Curcuma longa L.) in gelatin, Arabic gum and hydrolyzed collagen matrices
Grantee:Larissa Angélica Cirelli Zuanon Sardella
Support Opportunities: Scholarships in Brazil - Master