BSPL

Question 1

what does BSPL use

Answer 1

intense short duration oulses of borad spectrum white light

Question 2

wave length of BSPL

Answer 2

200-1000nm

Question 3

application of pulse light

Answer 3

surfaces, packaging materials, air, water or salt

Question 4

type of light used

Answer 4

UV rich (263.5nm is best)

Question 5

when used for food what happens to the BSPL

Answer 5

UV is filtered out to prevent oxidative processing and mineral loss

Question 6

describe the mechanism of inactivation

Answer 6

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

Question 7

application of pulsed light in the food industry

Answer 7

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

Question 8

are enzymes effected by pulsed light plus two examples

Answer 8

not really
LDH and alkaline phosphotase

Question 9

are enzymes effected by pulsed light plus two examples

Answer 9

not really
LDH and alkaline phosphotase

Question 10

critical processing factors for BSPL

Answer 10

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

Question 11

why is BSPLL considered clean?

Answer 11

relies on electricity, no chemical residue