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. 2016 Dec 28;11(12):e0167780. doi: 10.1371/journal.pone.0167780

Fig 1. Relationship between methylglyoxal and non-peroxide activity in Australian Leptospermum honeys.

Fig 1

Positive linear correlation between methylglyoxal (MGO) concentration and mean-squared non-peroxide activity (NPA) in Australian Leptospermum honey samples (n = 80) represented by diamond markers; green: MGO >800 mg/kg (NPA >20%), blue: MGO 260–800 mg/kg (NPA 10–20%), red: MGO <260 mg/kg (NPA <10%). Clover honey (purple triangle) served as a negative control with no detectable MGO or NPA, and New Zealand manuka honey (yellow square) and MedihoneyTM (orange circle) both served as the positive controls.