Publications by authors named "Hengkuan Tang"
Article Synopsis
- Ultrasonic-assisted extraction was used to isolate ACE-inhibiting peptides from walnut protein isolate, with optimal conditions set at 15 minutes and 400 W.
- Two new peptides, Tyr-Ile-Gln (YIQ) and Ile-Tyr-Gln (IYQ), were identified, alongside a novel synthetic peptide, Ile-Lys-Gln (IKQ), which showed enhanced ACE-inhibiting activity.
- The study suggests these peptides could be non-toxic and beneficial for nitric oxide production, highlighting the potential of ultrasonicated walnut protein as a source for developing functional food ingredients.
Walnut protein isolate was hydrolyzed using alcalase® to obtain angiotensin-I-converting enzyme (ACE) inhibitory (ACEI) peptides. The components with high ACEI activity were successfully purified from walnut protein isolate hydrolysates (WPIH) by ultrafiltration and G-25 gel chromatography. The 1520 peptides were identified by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).
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