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Food and Bioprocess Technology

, Volume 12, Issue 3, pp 486–498 | Cite as

Effects of Change in PH and Addition of Sucrose and NaCl on the Emulsifying Properties of Mucilage Obtained from Pereskia aculeata Miller

  • Luciana Affonso Junqueira
  • Tatiana Nunes Amaral
  • Pedro Campelo Félix
  • Diego Alvarenga Botrel
  • Mônica Elisabeth Torres Prado
  • Jaime Vilela de ResendeEmail author
Original Paper
  • 113 Downloads

Abstract

In this study, we evaluated the emulsifying properties of the hydrocolloids extracted from ora-pro-nóbis (Pereskia aculeata Miller) (HOPN) in soy oil emulsions (20% w/w) in water after different processing conditions. These properties were evaluated in terms of index of creaming, activity and emulsifying stability, electrical conductivity, zeta potential, rheology, particle size distribution, and optical microscopy. A two-level factorial was used to evaluate the effects of changes in pH (4–7), sucrose concentration (0–15% w/w), and NaCl concentration (0–1% w/w) and different processing conditions. This study has important implications for the application of HOPN in the food industry, since it was found that the HOPN were efficient in forming emulsions with desirable characteristics under all conditions and that the presence of sucrose favored the characteristics of these emulsions. However, the presence of NaCl and acidic pH negatively influenced these characteristics leading to the conclusion that, under these conditions, the HOPN should be used in synergy with a stabilizing agent.

Keywords

Stability Ora-pro-nóbis Emulsion Additive Heating Freezing 

Notes

Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brazil (CAPES) - Finance Code 001. The authors wish to thank the financial support the Conselho Nacional de Desenvolvimento Científico e Tecnológico – Brazil (CNPq) (Grant numbers 478376/2013-8 and 308043/2015-4) and the Fundação de Amparo à Pesquisa do Estado de Minas Gerais – Brazil (FAPEMIG) (Grant numbers CAG - APQ-01308-12 and CAG - APQ-03851-16).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Luciana Affonso Junqueira
    • 1
  • Tatiana Nunes Amaral
    • 1
  • Pedro Campelo Félix
    • 2
  • Diego Alvarenga Botrel
    • 1
  • Mônica Elisabeth Torres Prado
    • 1
  • Jaime Vilela de Resende
    • 1
    Email author
  1. 1.Department of Food Science, Laboratory of Food RefrigerationFederal University of LavrasLavrasBrazil
  2. 2.Faculty of Agrarian ScienceFederal University of AmazonasManausBrazil

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