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WorksheetsPre-test for UV processing lab
Total questions: 10
Worksheet time: 5mins
The wavelength for UV processing range from 100 nm to.......nm
200
280
320
400
UV-C is considered to be germicidal effect to microbial has a wavelenght.....nm
100-200
200-280
280-320
320-400
UV radiation in the range of.........nm is lethal to most of micro-organisms, including fungi, yeast, bacteria, viruses, protozoa and algae.
100-200
200-280
250-260
280-320
Which sample will not be used in the lab today?
Apple
Orange
Mango
Pineapple
Which sample will be subjected for to day laboratory?
Watermelon
Durain
Pomelo
Papaya
All of the given are the treatment for today lab, EXCEP......
Control
Heating at72C for 26 sec
UV at 254nm for 30 min
Pasteurization at 82C for 2 min
How many militer of the juice will be exposed to UV?
50 ml
100 ml
150 ml
200 ml
The distance between sample and light source (laminar flow) is.....
10 cm
20 cm
30 cm
40 cm
The monitoring quality measurment must be determined for all food processing techniques, but not apply for some laboratory because of spend time/cost/and easy to contaminate that is......
Chemical properties
Physical properties
Microbiological properties
Sensory evaluation
All of the given are physico-chemical analysis in this lab, EXCEP.....
pH
Brix
Color
Aw
