Full
Outline
To construct stable food-grade Pickering high internal phase emulsion using foxtail millet prolamin.
Foxtail millet prolamin was modified with xanthan gum to prepare composite particles. The contact angle, Zeta potential and Fourier transform infrared spectroscopy (FTIR) of the composite particles were analyzed. Pickering high internal phase emulsion with an internal phase ratio of 75% was constructed using the composite particles, and its structural, rheological and stability properties were evaluated.
Successful construction of foxtail millet prolamin-xanthan gum composite particles, when the concentration of xanthan gum was 4‰, as the protein concentration increased, the contact angle increased (from 45.17° to 61.06°), indicating reduced hydrophilicity, while the Zeta potential decreased from –45.97 mV to –49.27 mV. Conversely, when the mass concentration of foxtail millet prolamin was 10 mg/mL, an increase in polysaccharide concentration decreased the contact angle from 79.48° to 61.06°, indicating enhanced hydrophilicity, while the Zeta potential decreased from–42.00 mV to –49.27 mV. Rheological results demonstrated that increasing protein and polysaccharide concentrations enhanced the emulsion’s resistance to deformation and overall stability. When the foxtail millet prolamin mass concentration was 10 mg/mL and the xanthan gum concentration was 4‰ (m:V), the composite particles exhibited the highest absolute Zeta potential value, along with superior emulsification stability and activity, resulting in an emulsion with optimal deformation resistance.
Foxtail millet prolamin-xanthan gum composite particles can form a stable Pickering high internal phase emulsion.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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