Mānuka plant, bees & New Zealand origin
Identification and Quantitation of 2-Acetyl-1-pyrroline in Manuka Honey (Leptospermum scoparium)
Authors: Rückriemen et al.
PLAIN-LANGUAGE SUMMARY
GC-MS identified and quantified 2-acetyl-1-pyrroline in 11 commercial Manuka honeys at 0.08–0.45 mg/kg, with higher concentrations in samples containing more than 250 mg/kg MGO. Adding MGO to multifloral honey increased 2-acetyl-1-pyrroline and hydroxymethylfurfural during 12 weeks at 37 degrees Celsius but not at ambient temperature.
Reported result
The MGO–proline Strecker product 2-acetyl-1-pyrroline reflects MGO-associated and temperature-dependent chemical change in Manuka honey.
Study design
GC-MS quantification and controlled storage experiment
Mānuka plant, bees and New Zealand origin
Tested material
Mānuka honey, nectar, model-honey or analytical reference samples described by the publication.
Limitations
Only 11 commercial samples and an accelerated, MGO-spiked model were examined, so natural production and storage variability remain incompletely characterized.
Funding & conflicts
Not yet transcribed from the primary publication.
Applicability guardrail
Use 2-acetyl-1-pyrroline as a possible processing or quality parameter, not as a stand-alone authenticity or medicinal-potency marker.
Scientific reference
Rückriemen et al. (2015). Identification and Quantitation of 2-Acetyl-1-pyrroline in Manuka Honey (Leptospermum scoparium). Journal of Agricultural and Food Chemistry. https://doi.org/10.1021/acs.jafc.5b03042
Editorial record
Responsible publisher: Manuka Drops Limited. Record updated: 2026-08-28. Retraction check recorded: 2026-08-16. Retraction status: checked-no-retraction-signal. Editorial status: verified. Read the methodology.
Continue through quality and certification
This pathway concerns authenticity, measured composition, certification, grade, freshness, storage, origin and sensory profile. It is not a medical recommendation.