Thai researchers optimized starch removal, extraction, and preparative liquid chromatography to isolate vitexin from mung-bean seed coats, reaching 24.29 mg/g in extract and at least 90% purity at 3 mL/min. This is a laboratory process study and did not test anticancer activity or health benefits.
Key findings
- Fifty-percent ethanol yielded 24.29 mg/g vitexin. A 20:80 acetonitrile:water mobile phase separated poorly, while 15:85 achieved baseline separation. A 3 mL/min flow roughly halved separation time while maintaining ≥90% purity.
Why this matters globally
The process may valorize an agricultural byproduct and support scale-up of a standardized ingredient, but total recovery, solvent recycling, energy, cost, and feedstock consistency require evaluation.
Thai researcher contribution
KMUTNB and Kasetsart teams linked food technology, chemical engineering, and high-value separation from bioresources.
Limitations to consider
This preparative laboratory study does not report total mass yield, batch count, stability, impurities, or economics. Ninety-percent purity may not meet some pharmaceutical or food specifications. Nutraceutical activities come from prior literature; this study did not test bioactivity, safety, or bioavailability.