The quality indices of olive-pomace oil are shown in Table 11.
Table 11 Quality indices of olive-pomace oil
|
Items |
Quality indices |
|
Crude olive-pomace oil |
Refined olive-pomace oil |
Blended olive-pomace oil |
|
Odour and taste |
–– |
No peculiar odour |
No peculiar odour |
|
Colour |
–– |
Light yellow to beige |
Light yellow or light green |
|
Transparency (20oC, 24h) |
–– |
Transparent |
|
Acid value (KOH) / (mg/g) ≤ |
–– |
0.6 |
2.0 |
|
Peroxide value / (mmol/kg) ≤ |
–– |
2.5 |
7.5 |
|
Residual solvent content in oil / (mg/kg) |
≤ 100 |
Cannot be detected |
|
Ultraviolet absorbency (K1%1 cm) |
270 nm ≤ |
–– |
2.00 |
1.70 |
|
Δ K ≤ |
–– |
0.20 |
0.18 |
|
Moisture and volatile matter / (%) ≤ |
1.5 |
0.1 |
|
Insoluble impurities / (%) ≤ |
–– |
0.05 |
|
Metal content /
(mg/kg) |
Iron ≤ |
–– |
3.0 |
|
Copper ≤ |
–– |
0.1 |
|
|
|
|
|
|
Remarks: 1. The blank marked with “––” indicates that no test has been carried out. When, after testing, the residual solvent content in oil is less than 10mg/kg, it is regarded as unable to be detected.
2. The indices in bold font are mandatory.
5.3 Hygiene index
The hygiene index is implemented according to GB 2716 and related national standards and requirements.
5.4 Authenticity requirements
No other edible oil or non-edible oil should be found in the olive oil and olive-pomace oil, and no essence or flavouring should be added to them.
5.5 Food additives
No additives shall be added to the virgin olive oils.
The α- tocopherol is allowed in Refined olive oil, Blended olive oil, Refined olive-pomace oil and Blended olive-pomace oil, but the maximum consistency is not more than 200 mg/ kg.
More information about Chinese Standard of the Olive oils, please click:. 01, 02, 03, 04, 05, 06, 07, 08, 09
