Analytical & Research Services

CAFS-Postharvest Horticulture Training and Research Center

PHTRC have specialized laboratories specifically for the postharvest science of tropical horticultural crops. The laboratories can generate basic data such as morpho-anatomy, biochemistry, pathology and entomology, postharvest physiology, biotechnology, and engineering of tropical horticultural crops. UPLB students specializing in Postharvest Horticulture or those taking postharvest courses also have access to these laboratories. Some services are provided, subject to approval depending on the availability of personnel and equipment.


Andres Aglibut Avenue
University of the Philippines Los Banos, College, Laguna 4031


Wella L. Absulio


Telephone Nos: (049) 536 - 3259
Mobile No: +63 918 942 5389
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


  1. Gas chromatograph equipped with Flame Ionization Detector
  2. Gas chromatograph equipped with Thermal Conductivity Detector
  3. Universal Testing Machine
  4. Hot water tank
  5. Moisture Analyzer
  6. Spectrophotometer (UV-VIS)
  7. Color Meter
  8. Refractometer
  9. Cold Rooms


Service Fee
Ethylene by GC-FID 100/injection
Oxygen and Carbon dioxide GC-TCD 100/injection
TSS (°Brix), TA, pH 150/sample
Moisture by oven dry method 100/sample
Total Sugar by Phenol Method 300/sample
Reducing sugar by Nelson-Somogyi Method 300/sample
Starch by Sulfuric acid hydrolysis 400/sample
Ascorbic acid 100/sample
Total Phenolics 300/sample
Color (L, a, b, Chroma, Hue) by Minolta color meter 25/sample point
Firmness by Penetrometer 5/sample point
Hot water Treatment
Using hot water bath 250/load
Using 2-crate hot water tank 450/load
Cold storage
Corms 1/sack/day
Mums/aster/roses/orchids 5/dozen/day
Gladiolus 1/dozen/day
Fruits/Vegetables 1/kg/day
1 month 500 (without generator)
4000 (with generator)
Hot Air Chamber for drying/Oven 100/day
Air drying racks 10/day/rack
Plastic rates 1/day/crate
Vacuum sealing for packages 1/package (excluding plastic film)
Plastic sealing 0.70/ package (excluding plastic film)
Table-top centrifuge (non-refrigerated) 50/hour

Note: Maximum oven temperature outside office hours is only 70°C