Preparation and stability of naringin nanoemulsion system
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    Abstract:

    The aim was to construct a safe and efficient naringin nutrient delivery system. Whey protein isolate (WPI) was used as emulsifier,the preparation conditions were studied for naringin monolayer nanoemulsion (NA/WPΙe) and bilayer nanoemulsion with ιcarrageenan and gum arabic. Subsequently,the stability of the NA/WPΙe and naringin bilayer nanoemulsion was investigated under different environmental factors. The results showed that the optimal preparation conditions of NA/WPΙe were:5 g/100 mL WPI concentration,10% oiltoaqueous ratio(V/V),68.95 MPa homogenization pressure for 3 cycles. The naringin encapsulation ratio could reach 75.50% under this condition.For the bilayers nanoemulsion with 0.3 g/100 mL of gum arabic and ιcarrageenan,naringin encapsulation ratios were the highest,which were 69.80% and 64.78%,respectively. The naringin bilayer nanoemulsion’s droplets were significantly smaller than NA/WPΙe at 100℃ water bath for 10 min and different NaCl concentrations (P<0.05). After 35 days of storage,the growth rate of bilayer nanoemulsion’s droplets was significantly lower than that of NA/WPΙe(P<0.05). And the storage stability increased with increasing concentration of ιcarrageenan and gum arabic. Bilayer nanoemulsion with ιcarrageenan owned higher ionic stability and storage stability than that with gum arabic. The naringin bilayer nanoemulsion improved the stability of NA/WPΙe at its isoelectric point. In conclusion,the bilayer nanoemulsion prepared by adding gum arabic and ιcarrageenan had better physical stability,so it can provide better protection for naringin.

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程喆,潘思轶. Preparation and stability of naringin nanoemulsion system[J]. Jorunal of Huazhong Agricultural University,2019,38(4).

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  • Received:April 14,2019
  • Revised:
  • Adopted:
  • Online: June 25,2019
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