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Applied Biological Chemistry

Table 1 Contents of rosmarinic acid, rosmanol, carnosol, and carnosic acid in rosemary extract

From: Oxidative stability of chia seed oil and flax seed oil and impact of rosemary (Rosmarinus officinalis L.) and garlic (Allium cepa L.) extracts on the prevention of lipid oxidation

Compound

RTa (min)

Molecular formula

MRMb transition (m/z)

Concentration (mg/g DW)

Rosmarinic acid

2.3

C18H16O8

360 → 161

2.3 ± 0.4

Rosmanol

3.1

C20H26O5

345 → 283

0.5 ± 0.0

Carnosol

3.9

C20H26O4

329 → 285

8.1 ± 0.5

Carnosic acid

4.3

C20H28O4

331 → 287

8.6 ± 0.2

  1. aRT means retention time
  2. bMRM refers to multiple reaction monitoring
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