Paula Kiyomi Okuro

Dr. Paula Kiyomi Okuro

University of Campinas (UNICAMP), Campinas, SP, Brazil
orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2018 in Innovative Food Science & Emerging Technologies
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Journal Article
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CDChi Diem Doan
Chi Diem Doan
ITIris Tavernier
Iris Tavernier
Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
KDKoen Dewettinck
Koen Dewettinck

1 October 2017 in Food Structure
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Journal Article
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Ruann Janser Soares de CastroRuann Janser Soares de Castro
Ruann Janser Soares de Castro
MDMaria Aliciane Fontenele Domingues
Maria Aliciane Fontenele Domingues
AOAndré Ohara
André Ohara
Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
JSJessika Gonçalves dos Santos
Jessika Gonçalves dos Santos
HSHélia Harumi Sato
Hélia Harumi Sato

1 August 2013 in Food Research International
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Journal Article
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Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
MTMarcelo Thomazini
Marcelo Thomazini
JBJulio Cesar de Carvalho Balieiro
Julio Cesar de Carvalho Balieiro
RLRoberta D.C.O. Liberal
Roberta D.C.O. Liberal
Carmen Silvia Favaro-TrindadeCarmen Silvia Favaro-Trindade
Carmen Silvia Favaro-Trindade

9 February 2018 in Food & Function
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Journal Article
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Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
ITIris Tavernier
Iris Tavernier
MSMohd D. Bin Sintang
Mohd D. Bin Sintang
ASAndre Skirtach
Andre Skirtach
AVAntónio Vicente
António Vicente
RCRosiane Lopes Cunha
Rosiane Lopes Cunha
In this study, the effect of lecithin (LEC) on the crystallization and gelation of fruit wax (FW) with sunflower oil was researched. A synergistic effect on the gel strength was observed at FW : LEC ratios of 75 : 25 and 50 : 50, compared to the corresponding single component formulations (100 : 0 and 0 : 100). Even below the critical gelling concentration (Cg) of FW, the addition of lecithin enabled gel formation. Lecithin affected the thermal behavior of the structure by delaying both crystallization and gel formation. The phospholipid acted as a crystal habit modifier changing the microstructure of the oleogel, as was observed by polarized light microscopy. Cryo-scanning electron microscopy revealed a similar platelet-like arrangement for both FW as a single oleogelator and FW in combination with LEC. However, a denser structure could be observed in the FW : LEC oleogelator mixture. Both the oil-binding capacity and the thixotropic recovery were enhanced upon lecithin addition. These improvements were attributed to the hydrogen bonding between FW and LEC, as suggested by Raman spectroscopy. We hypothesized that lecithin alters the molecular assembly properties of the FW due to the interactions between the polar moieties of the oleogelators, which consequently impacts the hydrophobic tail (re)arrangement in gelator–gelator and solvent–gelator interactions. The lipid crystal engineering approach followed here offered prospects of obtaining harder self-standing structures at a lower oleogelator concentration. These synergistic interactions provide an opportunity to reduce the wax concentration and, as such, the waxy mouthfeel without compromising the oleogel properties.

1 August 2019 in Food Research International
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Journal Article
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Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
AGAndresa Gomes
Andresa Gomes
ACAna Letícia R. Costa
Ana Letícia R. Costa
MAMatheus A. Adame
Matheus A. Adame
RCRosiane Lopes Cunha
Rosiane Lopes Cunha

1 June 2019 in Food Research International
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Journal Article
Closed access
AFAna Caroline Ferro
Ana Caroline Ferro
Paula Kiyomi OkuroPaula Kiyomi Okuro
Paula Kiyomi Okuro
ABAna Paula Badan
Ana Paula Badan
RCRosiane Lopes Cunha
Rosiane Lopes Cunha