UMBELLIFEE-ZE 327
OLL OF SUMBUL.
Sumbul Oil or Musk-root Oil is obtained from the dried root of
Ferula sumbul. The yield of oil is only from -2 to 1*1 per cent. The
oil has the following characters :—
Specific gravity 0-932 to 0*964
Optical rotation - 6° 20'
Acid value 7
Ester „ 20 to 90
On standing for a few days after distillation crystals are deposited,
which melt at 113° to 114°.
It has a distinct musk-like odour, and in India the root of Dorema
ammoniacum is often substituted for it and used under the name of
sumbul root.
OILS OF PARSNIP.
Various parts of Pastinaca sativa yield essential oils. The seed oil
contains the propionic and butyric esters of octyl alcohol. Schimmel &
Co.
1
have investigated the oils distilled from the under-mentioned parts
of the plant.
They submitted separately to distillation with water vapour, the
ripe dried seeds, the umbels, and the roots of the plants.
- Oil from dried seed of Pastinaca sativa.—The bright yellow oil
obtained in a yield of 1-47 per cent, had the following properties :
d 16 ° 0-8736 ; aD - 0° 9'; n^20o 1-43007; acid number 4'4; ester number
240-6; ester number after acetylation 276; soluble in 2-J and more
volumes 80 per cent, alcohol.
- Oil from dry umbels of Pastinaca sativa.—The oil had a dark
brown colour, and had a very remote odour of oil of ambrette seeds.
It was obtained in a yield of 0
- 3 per cent.; dl5o 10168 ; ac - 0° 50';
WDgoo 1-50049; acid number 4'2; ester number 62'9 ; ester number after
acetylation 86-2; soluble in 65 volumes 80 per cent, alcohol, with
separation of paraffin.
- Oil from the dry roots of Pastinaca sativa.—The bright yellowish
oil which in odour reminded somewhat of vetiver oil, was obtained in a
yield of 0 35 per cent., and had the following properties: d 150 10765 ;
aD - 0° 10'; ?&D 20 O 1'52502 ; acid number 3'9; ester number 12'6 ; ester
number after acetylation 33'7; not completely soluble in 10 volumes 80
per cent, alcohol; soluble in 0
- 6 and more volumes 90 per cent, alcohol.
The oil from the wild plant seeds has the following characters :—
Specific gravity 0-869 to 0*885
Optical rotation 0° to + 0° 13'
Refractive index 1-4280 to 1-4350
Acid value 2 „ 10
Ester „ 218 „ 270
„ „ (after acetylation) 260 „ 296
Two samples of parsnip oil examined by Boure-Bertrand Fils had
the following characters. Sample No. 1 was a German distilled oil from
the seeds only; sample No. 2 was an Italian distilled oil from the stems
with flowers and seeds :—
1
Bericht (1908), 96.
