INFORM April 2025

22 • inform April 2025, Vol. 36 (4)

Pesticides in the reference process (<200 °C) deodorization.

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.0 1.2

residue [mg/mk]

Pesticides in the reference process (<200 °C) deodorization.

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.0 1.2

Bifenthrin

Indoxacarb

Permethrin

Deltamethrin

Tebuconazole

Difenoconazol

Chlorpyrifos-methyl

crude Oil

mild refined oil

A graph indicating that pesticide levels are significantly lower after SPD treatment. Source: Nutriswiss

SHORT PATH DISTILLATION REDUCES HYDROCARBON CONTAMINATION MOAH (>C35 to ≤C50) – Reduction %

with pipes, ambient air, and other transported goods can also lead to the accumulation of harmful substances in the raw material. Nutriswiss therefore relies on long-term contractual part ners, the use of ISO-containers that comply with food-grade standards and its own controls for supply chain management. Before, during and after processing, a comprehensive key data profile is drawn up for each oil in our own or indepen dent external laboratories. This clearly shows that the sourced material is significantly less contaminated on arrival at the fac tory than standard market goods, as reflected in measured MOAH values. 40.00 50.00 60.00 70.00 80.00 90.00 100.00 MOAH (>C25 to ≤C35) – Reduction % residue [mg/mk] crude Oil Bifenthrin Chlorpyrifos-methyl Deltamethrin

70

The EU’s proposed limit of 2 mg/kg for oils and fats continues to be criticised by NGOs who argue the requirement should be less than 1 mg/kg (the detection limit) for MOAH. We found that by using the SPD process it is possible to effectively reduce both MOSH and MOAH while preserving tocopherols and avoiding 3-MCPD and glycidol formation. However, the amount reduced depends on the distribu tion of the individual mineral oil hydrocarbon (MOH) frac tions. For example, the MOAH fraction between C25 and C35 dropped by about 70 percent and the fraction from C35 to C50 mild refined oil Indoxacarb Permethrin Tebuconazole

60

50

Difenoconazol

40

30

30.00

20

MOAH (>C25 to ≤C35) – Reduction %

MOAH (>C35 to ≤C50) – Reduction %

20.00 100.00

70

10

90.00

10.00

60

0.00 80.00

0

210.0 220.0 230.0

200.0

240.0 250.0

230

260.0

235

240

245

250

255

260

265

50

70.00

Temperature evaporator wall °C

Temperature evaporator wall °C

60.00

40

50.00

30

40.00

DEHP – Reduction [%]

30.00

20

110

20.00

100

10

10.00

90

0.00

0

210.0 220.0 230.0

200.0

240.0 250.0

230

260.0

235

240

245

250

255

260

265

80

Temperature evaporator wall °C

Temperature evaporator wall °C

70

Anticipated amounts that specific MOAH fractions can be lowered using SPD. Source: Nutriswiss.

60

50 200 205 210 215 220 225 230 235

DEHP – Reduction [%]