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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.)

Oil in water emulsions stabilized by maillard conjugates of sodium caseinate-locust bean gum

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Author(s):
Barbosa, Janaina Miranda [1, 2] ; Ushikubo, Fernanda Yumi [1] ; de Figueiredo Furtado, Guilherme [1] ; Cunha, Rosiane Lopes [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Sch Food Engn, Dept Food Engn, BR-13083862 Campinas, SP - Brazil
[2] Univ Fed Sao Joao del Rei, Dept Food Engn, Sete Lagoas - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY; v. 40, n. 5, p. 634-645, MAY 4 2019.
Web of Science Citations: 0
Abstract

Conjugates composed by sodium caseinate and locust bean gum (LBG) were produced through Maillard reaction in order to enhance their emulsifying properties. The reactions were performed (80 degrees C/76% relative humidity) at three protein/polysaccharide ratios (0.3, 0.6, 1.2), and the conjugates were added in emulsions at two pH values (3.5 and 7). The formation of protein-polysaccharide conjugates was confirmed by SDS-polyacrylamide gel electrophoresis and by FTIR spectra. At both pH values, the conjugates subjected to longer reaction times presented less emulsifying capability, probably due to insoluble compounds formation. Furthermore, the conjugates provided high stability in O/W emulsions at pH 7 due to the electrostatic repulsion of protein charged groups. However, even though the conjugates were not charged at pH 3.5, the stabilization process occurred at this condition probably due to the formation of a thicker interfacial layer, which provided an increase in steric repulsion between the droplets. Thus, the conjugates formed by sodium caseinate and locust bean gum can be characterized as a good emulsifying agent to be applied in different pH conditions. {[}GRAPHICS] . (AU)

FAPESP's process: 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer
Grantee:Miriam Dupas Hubinger
Support Opportunities: Multi-user Equipment Program