BSPL Flashcards

1
Q

what does BSPL use

A

intense short duration oulses of borad spectrum white light

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2
Q

wave length of BSPL

A

200-1000nm

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3
Q

application of pulse light

A

surfaces, packaging materials, air, water or salt

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4
Q

type of light used

A

UV rich (263.5nm is best)

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5
Q

when used for food what happens to the BSPL

A

UV is filtered out to prevent oxidative processing and mineral loss

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6
Q

describe the mechanism of inactivation

A

interaction between UV and DNA (changes to bases)
lysis of cell wall due to infrared heat

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7
Q

application of pulsed light in the food industry

A

sterilisation of microbial population reduction in
packaging materials
transparent pharmaceutical products
process surfaces

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8
Q

are enzymes effected by pulsed light plus two examples

A

not really
LDH and alkaline phosphotase

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9
Q

are enzymes effected by pulsed light plus two examples

A

not really
LDH and alkaline phosphotase

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10
Q

critical processing factors for BSPL

A

light (how much UV)
packaging (transparent?)
food attributes: type, transparency, colour, depth of fluid colume

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11
Q

why is BSPLL considered clean?

A

relies on electricity, no chemical residue

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