2. Fruit preparation : Durian fruit , cultivar Monthong, were cleaned of their
outer surface by using brushes to remove dust, ants, etc. After having been
checked their ripeness, they were opened in 25°C room which was cleaned
by using antiseptic solution on the floor and tables. The de-shell section
was separated from the packing area to avoid cross contamination. Everyone
in this room wore face mask. The persons who touched the durian pulp
wore sterile latex gloves. The knives for cutting pulp off the shell , if
necessary, were sterilized by soaking in 70 % ethyl alcohol before using
them. All packaging materials and trays were sterilized by passing through
the 4X40 Watts UV-tunnel for 15 minutes. Durian pulp with seed was
packed in sterilized C-fine tub then over-wrapped with 0.13 μm PVC
stretch film and covered with 4 ∅6 mm. perforations, PVC transparent rigid
lid. It was stored at 2 °C and 5 °C. Under the pulp, a water-absorber pad
was laid.