Agricultural Products Analytical Laboratory

 Objectives of Laboratory

  • To carry out analysis on the agricultural products for safety.
  • To cooperate in the control measures of pesticide residue, mycotoxin and heavy metals
  • To provide certification of export, import of agricultural primary products.
  • To assist and educate quality control staff from agricultural industry

Functions

  • Coordinating with national food control line ministries for control measures to eliminate unsafe edible oils and agricultural primary products
  • Providing analytical services for food safety, identification and quality parameters
  • According to international agricultural produce standards, to assist agricultural industry by analytical service

Tests

Analytical tests and its charges are as follows:

No. Tests Fee (Kyat) No Tests Fee (Kyat)
1. Acid Value 9000 13 Moisture in oilseeds 4000
2. Betacarotene 22000 14 Oil content in oilseeds 8500
3. Chlorophyll content 22000 15 ρ-Anisidine value 30000
4. Color 5000 16 Peroxide value 27000
5. Density 14000 17 Refractive index 3000
6. Diene&Triene 22000 18 Saponification value 4000
7. Fatty acid profile 45000 19 Viscosity 5000
8. Free fatty acid 3500 20 Aflatoxin (B1+B2+G1+G2) 30000
9. Heavy metals-Cd, Cu, Ni, Pb 15000 (for each) 21 Pesticide residue 30000
10 Iodine value 27000
11 Mineral oil 3000
12 Moisture in oil 7500

Note: Requirements for testing are as below:

  • Edible oil sample requires (1.5 Litre) for all (21) tests and if viscosity test is excluded, (1 Litre) is enough. To test agricultural primary products, (1 kg) sample is needed.
  • Certificate of Analysis (CoA) will be issued within 7 to 10 days after sample received.
  • The results of CoA will be based on the sample (s) submitted to the laboratory.

The above tests are analyzed by the technologies and international methods as below:

Capacity of Laboratory and current using international methods
(1) Test for pesticide residue in agricultural products  (by Gas Chromatography with Electron  Capture Detector)

It is very important to analyse pesticide (fungicide, herbicide, etc.) residues in agricultural primary products. Pesticide residues in food harm human health and it can also contaminate to the environment. Pesticide residues can be detected by GC-ECD with QuEChERs Clean up European EN 15662 method.

GC-ECD (Gas Chromatography with Electron Capture Detector)

Tests Method;  European EN 15662

(2) Mycotoxin  harm (by High Performance Liquid Chromatography- HPLC)

More than 300 to 400 compounds are identified as mycotoxins in the world and are toxic to humans and animals. Toxicological problems include hepatotoxic, carcinogenic, teratogenic, estrogenic or immunosuppressive effects.   Major mycotoxins are Aflatoxins, Ochratoxin A, Deoxynivalenol, Fumonisins, Zearalenone . All mycotoxins are low molecular weight natural products produced as secondary metabolites by molds, such as Aspergillus, Fusarium, and Penicillium species. Nowadays in the world, the most highly strict of mycotoxin in food is European countries, then Latin America, Asian countries subsequently and African and North America are stressed to strict. Mycotoxins, especially aflatoxins, are regulated in many countries to safeguard the health of the population.

Aflatoxin Tests: by HPLC

    • Fluorescence Detector,
    • UV Detector,
    • Photodiode Array Detector (DAD),
Aflatoxin Group (B1, B2, G1, G2) detected by FLD-HPLC

Maximum residue levels (MRLs) are important considerations in the establishment of trade. It is set through a survey of the prevalence of the problem in particular country, a calculation of the consumption of the target commodity by the population most at risk and the application of safety factors. A higher prevalence of the problem means that there is a greater chance that will be prevented when people eat the food. Generally, there is a consideration on significant portion of consumption and body weight of person, it helps minimize the chances of health effects. The mold or the production of mycotoxins is affected through a variety of agricultural products during post- harvest handling in wet and too dry seasons. The largest difficulty in the measurement of mycotoxins is the heterogeneity of their easy distribution.

Tests Method;  ISO 16050
1. Sample Preparation

2. Purification

3. Injection / Detection

(3) Content of Heavy metals (by Atomic Absorption Spectrometry)
AAS with Graphite Furnace and Flame Photometry

Heavy metals like As, Cd, Cr, Se, etc. are known for their toxicity and can be incorporated into the edible oil and primary products from the soil or be introduced during production by drying, milling and refining process through containers, equipments and fertilizers. The quality of products with regard to freshness, storability and toxicity can be evaluated by the determination of heavy metals.

Analytical Trainings at APAL

Contact Person

Dr.Khin Moe Kyaw
Deputy Director
Seed Compound (Department of Agriculture)
Gyogone – Insein, Yangon.
Phone+ 95-01-646294
Email- khin7915@gmail.com