TABLE 14-1 Methanol Concentrations in Foods and Beverages

Source

Concentration

Fresh and canned fruit juices (orange and grapefruit juices)

1-43 mg/L

11-80 mg/L

12-640 mg/L

(Average of 140 mg/L)

Neutral spirits

<1.5 g/L

Beer

6-27 mg/L

Wines

96-329 mg/L

Distilled spirits

16-220 mg/L

Bourbon

55 mg/L

50% grain alcohol

1 mg/L

Brandies (United States, Canada, and Italy)

6,000-7,000 mg/L

Beans

1.5-7.9 mg/kg

Split peas

3.6 mg/kg

Lentils

4.4 mg/kg

Carbonated beverages

~56 mg/L

Abbreviations: kg, kilogram; L, liter.

Source: Data from NTP CERHR 2003.

TABLE 14-2 Background Blood Methanol and Formate Concentrations in Humans

Subjects

mg of methanol/L, mean ± SD (range)

mg of formate/L, mean ± SD (range)

Twelve males on restricted diet (no methanol-containing or methanol-producing foods) for 12 h

0.570 ± 0.305

(0.25-1.4)

3.8 ± 1.1

(2.2-6.6)

Twenty-two adults on restricted diet (no methanol-containing or methanol-producing foods) for 24 h

1.8 ± 2.6

(no range data)

11.2 ± 9.1

(no range data)

Three males who ate a breakfast with no aspartame-containing cereals and no juice

1.82 ± 1.21

(0.57-3.57)

9.08 ± 1.26

(7.31-10.57)

Five males who ate a breakfast with no aspartame-containing cereals and no juice (second experiment)

1.93 ± 0.93

(0.54-3.15)

8.78 ± 1.82

(5.36-10.83)

Twelve adults who drank no alcohol for 24 h

1.8 ± 0.7

(no range data)

No data

Twelve adults who drank no alcohol for 24 h

1.7 ±0.9

(0.44.7)

No data

Thirty fasted adults

<4

(no range data)

19.1

(no range data)

Twenty-four fasted infants

<3.5

(no range data)

No data

Abbreviation: SD, standard deviation.

Source: Data from NTP CERHR 2003.



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