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Bitter almond oil

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Bitter almond oil Basic information

Product Name:
Bitter almond oil
Synonyms:
  • almond,
  • almond,bitter
  • Almondhullextract
  • almondoilbitterffpa
  • Bitteralmondessence
  • bitteralmondoilffpa
  • oil,bitteralmond
  • oil,bitteralmondffpa
CAS:
8013-76-1
MF:
C7H6O
MW:
106.12194
EINECS:
640-369-0
Mol File:
8013-76-1.mol
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Bitter almond oil Chemical Properties

FEMA 
2046 | ALMONDS, BITTER, OIL (FFPA) (PRUNUS AMYGDALUS BATSCH VAR. AMARA (DC.) FOCKE)
Flash point:
61℃
form 
liquid
CAS DataBase Reference
8013-76-1
EPA Substance Registry System
Bitter almond oil (8013-76-1)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
26-36
WGK Germany 
3
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Bitter almond oil Usage And Synthesis

Chemical Properties

Bitter almond oil (free from hydrogen cyanide) contains benzaldehyde as its main component. Benzaldehyde does not occur as such in the plant, but is formed, together with hydrogen cyanide, by the hydrolytic cleavage of the glycoside amygdalin.
Amygdalin is present in bitter almonds, the seeds of Prunus dulcis var. amara (DC.) Buchheim, and ripe apricot kernels, Prunus armeniaca L. (Rosaceae).The press cake, which remains after removal of the fatty oils, is macerated with water and left to stand for several hours, after which the “essential oil” is separated by steam distillation. The crude oil contains 2–4% hydrogen cyanide, which is removed by washing with alkaline solutions of iron(II) salts. Subsequent redistillation yields an oil free from hydrogen cyanide. It is a colorless to slightly yellow liquid with an intense, almond-like, cherry aroma and a slightly astringent, mild taste.
d2525 1.025–1.065; n20D 1.5350–1.5550; acid value: max. 8; solubility: 1 vol inmax. 6 vol 50% ethanol. HCN content: <0.01%; benzaldehyde content by GC: min. 98%.
Bitter almond oil is used almost exclusively in natural aroma compositions.

Chemical Properties

Bitter almond has an intense, almond-like, cherry aroma with a slightly astringent, moldy taste. The term bitter almond refers to the essential oil obtained by steam distillation of the partially de-oleated press-cake of kernels from any of the following: bitter almond (P. amygdalus), apricot (P. armeniaca) and peach (P. persica). The kernels from these and other such fruits contain the glucoside amygdalin, which on enzymatic hydrolysis yields benzaldehyde and HCN. The distilled oil must be rendered free of HCN (prussic acid) prior to its marketing as a flavor ingredient. Very little essential oil is currently made exclusively from bitter almonds or other fruit kernels; specially purified benzaldehyde is often used in its place

Physical properties

Oil intended for use as a flavor ingredient is treated to remove traces of HCN by precipitation as insoluble calcium ferrocyanide.

Essential oil composition

Bitter almond oil is obtained by first cold-expressing the fixed oils from the comminuted kernels, after which the press-cake is macerated in about 10 parts of water for 12 to 20 hours to effect the enzymatic hydrolysis of amygdalin. The mixture is then steam distilled to yield about 0.5 to 0.7% of the essential oil. Bitter almonds are rarely used because the yield of oil is only 0.6%. Apricot kernels yield 1.2% of oil and are the preferred starting material. The major components of the oil are typically 97.5% benzaldehyde (bitter almond) and 2% hydrogen cyanide (bitter almond).

Bitter almond oil Preparation Products And Raw materials

Raw materials

Bitter almond oilSupplier

Energy Chemical
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021-58432009-
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Hubei Yuancheng Saichuang Technology Co., Ltd.
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18062666868/13048470578 QQ2355779403/2355880551
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Shenzhen Simeiquan Biotechnology Co. Ltd
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18126413629 0755-23311925 QQ2355327053
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abel@ycgmp.com
Shenzhen Sendi Biological Technology Co., Ltd.
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WX:18124570582 TEL:0755-23574479 QQ: 2355327139
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siliao02@yccreate.com
Guangzhou Kafen Biotech Co.,Ltd
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18029243487 QQ:2355327168
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gy@yccreate.com