Conference Papers (FP)

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Properties of indigenous and imported retort pouches for the thermal processing of freshwater fish
(Society of Fisheries Technologists(India),Cochin, 2002) Ali, A.A.; Sudhir, B.; Gopal, T.K.S.; Vijayan, P.K.
Flexible pouches are an ideal alternative to metal can. The physical properties of the pouches were studied after collecting different types of indigenous and imported flexible pouches, analysing their composition and conducting detailed studies on their physical and food contact application properties. The indigenous pouches usually consists of 12.5 to 17.5 μ polyester / 12.5 to 25 μ aluminium foil / 75 to 87.5 μ cast polypropylene and imported one with configuration of 12 μ polyester/ 15 μ aluminium foil / 75 μ cast polypropylene. The physical properties studied include tensile strength, elongation at break, bond strength, bursting strength, heat seal strength, watervapour transmission rate and oxygen transmission rate. The overall migration studies indicated that the pouches are within the limits prescribed for food contact applications and they are suitable for processing freshwater fish. The indigenous pouches were found to be as good as the imported pouches. It has been found that the curry processed in indigenous retort pouch could be kept for more than one year at room temperature.