4 Classification
4.1 Olive oil
Olive oil includes:
a) Virgin olive oil, which is divided into:
1) extra virgin olive oil
2) medium-grade virgin olive oil
3) lampante virgin olive oil
b) Refined olive oil
c) Blended olive oil
4.2 Olive-pomace oil
Olive-pomace oil includes
a) Crude olive-pomace oil
b) Refined olive-pomace oil
c) Blended olive-pomace oil
5 Quality requirements
5.1Characteristic Indices
5.1.1 The composition of fatty acids is shown in Table 1.
Table 1 Composition of fatty acids in olive oil and olive-pomace oil
|
Name |
|
Content (%) |
|
Myristic acid (C14: 0) |
≤ |
0.05 |
|
Palmitic acid (C16: 0) |
|
7.5 ~ 20.0 |
|
Palmitoleic acid (C16: 1) |
|
0.3 ~ 3.5 |
|
Heptadecanoic acid (C17: 0) |
≤ |
0.3 |
|
Heptadecene acid (C17: 1) |
≤ |
0.3 |
|
Stearic acid (C18: 0) |
|
0.5 ~ 5.0 |
|
Oleic acid (C18: 1) |
|
55.0 ~ 83.0 |
|
Linoleic acid (C18: 2) |
|
3.5 ~ 21.0 |
|
Linolenic acid (C18: 3) |
≤ |
1.0 |
|
Arachidic acid (C20: 0) |
≤ |
0.6 |
|
Eicosenoic acid (C20: 1) |
≤ |
0.4 |
|
Behenic acid (C22: 0) |
≤ |
0.2a |
|
Tetracosanoic acid (C24: 0) |
≤ |
0.2 |
|
a: Olive-pomace oil ≤ 0.3 |
|
|
5.1.2 Trans fatty acid content is shown in Table 2.
Table 2 Content of trans fatty acids
|
Type of trans fatty acid |
Virgin olive oil |
Refined olive oil |
Olive-pomace oil |
|
C18:1 T |
≤ 0.05 |
≤0.20 |
≤ 0.40 |
|
C18:2 T + C18:3 T |
≤ 0.05 |
≤ 0.30 |
≤0.35 |
5.1.3 Unsaponifiable matter content is shown in Table 3.
Table 3 Unsaponifiable matter content in olive oil and olive-pomace oil
|
Type of product |
|
Unsaponifiable matter content (g/kg) |
|
Olive oil |
≤ |
15 |
|
Olive-pomace oil |
≤ |
30 |
More information about Chinese Standard of the Olive oils, please click:. 01, 02, 03, 04, 05, 06, 07, 08, 09