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Optimization and Characterization of PEG Extraction Process for Tartary Buckwheat-Derived Nanoparticles
Jiyue Zhang1, Chuang Zhou1, Maoling Tan1
1Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu 610106, China.
Foods (Basel, Switzerland)
|August 29, 2024
Summary
Tartary-buckwheat-derived nanoparticles (TBDNs) were optimized for extraction, yielding high amounts of bioactive compounds. These plant-derived nanocarriers show potential for targeted nutrient delivery and antioxidant applications.
Area of Science:
- Plant-derived nanocarriers
- Nanotechnology in nutrition
- Bioactive compound delivery
Background:
- Edible nanovesicles from plants are key for targeted delivery of miRNAs and phytochemicals.
- Precision nutrient delivery research focuses on these nanocarriers.
- Tartary-buckwheat-derived nanoparticles (TBDNs) are a promising candidate.
Purpose of the Study:
- To optimize the extraction of TBDNs from Tartary buckwheat.
- To determine the ideal conditions for maximizing yield, phenol, flavonoid content, and antioxidant activity.
- To characterize the structure and size of the extracted TBDNs.
Main Methods:
- Isolation and purification of TBDNs using differential centrifugation and PEG precipitation.
- Response surface methodology to optimize extraction parameters (PEG concentration, pH, temperature).
- Characterization using transmission electron microscopy and nanoparticle-size-tracking analysis.
Main Results:
- Optimal extraction conditions: 10% PEG, pH 5, 4°C.
- Yield: 1.7795 g/kg; Total Phenol: 178.648 mg/100 g; Total Flavonoid: 145.421 mg/100 g.
- High DPPH radical-scavenging activity (86.37%); TBDNs have a teato-type vesicle structure, average size 182.8 nm.
Conclusions:
- A novel, optimized method for TBDN extraction was established.
- TBDNs possess significant bioactive compound content and antioxidant capacity.
- These findings support further research into TBDNs for targeted delivery and health applications.
