Effect of dynamic high pressure on emulsifying and encapsulant properties of cashew tree gum

Porto, Bruna Castro; Cristianini, Nello

doi:10.1016/j.carbpol.2018.01.019

Cited by 9 publications

(4 citation statements)

References 39 publications

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“…High Pressure Homogenization, which has been shown to be effective in reducing the molar masses of polysaccharides [9,10], has been applied to EPS produced by the red microalga P. marinum in order to obtain lower molar masses exopolysaccharides and therefore to decrease their viscosity. EPS obtained from P. marinum were submitted to up to five cycles of HPH at a pressure of 2.7 kbar and three exopolysaccharide fractions were recovered, such as untreated EPS (EPS-0C), EPS after two HPH passes (EPS-2C) and EPS after five HPH passes (EPS-5C).…”

Section: Production Of Different Molar Masses Exopolysaccharides By Hphmentioning

confidence: 99%

Potential of Exopolysaccharide from Porphyridium marinum to Contend with Bacterial Proliferation, Biofilm Formation, and Breast Cancer

et al. 2021

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Exopolysaccharide (EPS) from marine microalgae are promising sources of a new generation of drugs. However, lot of them remain to be discovered and tested. In this study, EPS produced by Porphyridium marinum and its oligomers prepared by High Pressure Homogenizer have been tested for different biological activities, i.e., antibacterial, anti-fungal and antibiofilm activities on Candida albicans, as well as for their effects on the viability of murine breast cancer cells. Results have shown that all EPS samples present some biological activity. For antibacterial and antibiofilm activities, the native EPS exhibited a better efficiency with Minimum Inhibitory Concentration (MIC) from 62.5 µg/mL to 1000 µg/mL depending on the bacterial strain. For Candida albicans, the biofilm formation was reduced by about 90% by using only a 31.3 µg/mL concentration. Concerning breast cancer cells, lower molar masses fractions appeared to be more efficient, with a reduction of viability of up to 55%. Finally, analyses of polymers composition and viscosity measurements were conducted on all samples, in order to propose hypotheses involving the activities caused by the intrinsic properties of polymers.

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Section: Production Of Different Molar Masses Exopolysaccharides By Hphmentioning

confidence: 99%

Potential of Exopolysaccharide from Porphyridium marinum to Contend with Bacterial Proliferation, Biofilm Formation, and Breast Cancer

et al. 2021

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“…The consistency index is an indicator of the viscous nature of the fluid 26 . The power law index n is the flow behavior index where n < 1 and n = 1 are for non‐Newtonian and Newtonian fluids, respectively 27 …”

Section: Methodsmentioning

confidence: 99%

“…26 The power law index n is the flow behavior index where n < 1 and n = 1 are for non-Newtonian and Newtonian fluids, respectively. 27…”

Section: Rheological Propertiesmentioning

confidence: 99%

Protective effect of surfactant modified phytosterol oleogels on loaded curcumin

Zhai

Chang

et al. 2022

J Sci Food Agric

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BACKGROUND Oleogels represent one of the most important carriers for the delivery of lipophilic nutraceuticals. Phytosterols (PS), plant‐derived natural sterol compounds, are preferred for oleogel preparation due to their self‐assembly properties and health function. However, the relationship between the physical properties of PS‐based oleogels and the chemical stability of loaded bioactive compounds is still unclear. RESULTS The influence of lecithin (LC) and glycerol monostearate (GMS) on the physical properties of PS‐based oleogels made of liquid coconut oil and the stability of curcumin as a model bioactive loaded in the oleogels was investigated. Results showed that the flow consistency index was much higher for GMS‐containing oleogels than that for LC‐containing oleogels. The optical microscopy and X‐ray scattering analysis showed that the addition of GMS in the PS oleogels promoted the formation of a crystal mixture with different crystal polymorph structures, whereas LC addition promoted the formation of needle‐like crystals of PS. Using curcumin as a model lipophilic nutraceutical, the GMS‐enriched PS oleogels with high crystallinity and flow consistency index exhibited a good retention ratio and scavenging activity of the loaded curcumin when stored at room temperature. CONCLUSION This study shows that enhancing the firmness of oleogels made from PS and liquid coconut oil is beneficial to the retention and chemical stability of a loaded bioactive (curcumin). The findings of the study will boost the development of PS‐based oleogel formulations for lipophilic nutraceutical delivery. © 2022 Society of Chemical Industry.

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“…Plant polysaccharides are one of the most abundant biological materials that are widely employed as functional ingredients to improve the physical properties of drug, food and non‐food formulations (Amid & Mirhosseini, , Vasile et al , , Porto & Cristianini, , Salarbashi & Tafaghodi, , Crispín‐Isidro et al , , George et al , , Ma et al , ). One of the functional properties that is very frequently exploited is their capacity to stabilise oil‐in‐water emulsions (Porto & Cristianini, ; Dickinson, ), as some polysaccharides may play an essential role as surface active agents that facilitate emulsion stability by lowering the interfacial tension between immiscible phases (Grein et al , ). The surface activity of polysaccharides that contributes to emulsion stability is largely attributable to the presence of hydrophobic groups for molecular attachment at the oil interface and to chain branching to sterically stabilise oil droplets (Kpodo et al , , Dickinson, , Alba & Kontogiorgos, , Kontogiorgos, ).…”

Section: Introductionmentioning

confidence: 99%

Emulsifying properties of Ghanaian grewia gum

Kpodo

Agbenorhevi

Alba

et al. 2019

Int J of Food Sci Tech

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Grewia gums were extracted with phosphate (PB) and sodium metabisulphite buffers (SMB) and their emulsification properties in acidic oil-in-water emulsions on ageing were studied by means of droplet size distribution, f-potential measurements, interfacial composition analysis and viscometry. PB extracts showed smaller droplet sizes (~10 lm) than SMB isolates (>35 lm) and greater long-term stability. PBstabilised emulsions also demonstrated the least polysaccharide (~0.6 mg m À2 ) and protein (~0.2 mg m À2 ) interfacial coverage compared with SMB counterparts (~1.5 mg m À2 for polysaccharide and~1 mg m À2 for protein). f-Potential measurements revealed negative interfacial charge for all emulsions confirming the presence of polysaccharide-laden interfaces. Droplet size distribution also varied among emulsions during ageing indicating a complex relationship between interfacial composition and stability. The present work shows that different emulsifying properties may be obtained depending on the extraction technique employed that could be exploited in preparation of emulsions for flavour or bioactive-delivery applications.Grewia gum-stabilised emulsions F.M. Kpodo et al.

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Effect of dynamic high pressure on emulsifying and encapsulant properties of cashew tree gum

Cited by 9 publications

References 39 publications

Potential of Exopolysaccharide from Porphyridium marinum to Contend with Bacterial Proliferation, Biofilm Formation, and Breast Cancer

Potential of Exopolysaccharide from Porphyridium marinum to Contend with Bacterial Proliferation, Biofilm Formation, and Breast Cancer

Protective effect of surfactant modified phytosterol oleogels on loaded curcumin

Emulsifying properties of Ghanaian grewia gum

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