Food Diet and Health Flashcards

1
Q

What is the main role of soluble solids and titratable acidity tests in FV quality assessment?

A

Evaluate pH and suagr levels

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2
Q

Which processing method ensures a 6-log reduction of pathogens such a listeria during sous vide(sv) processing?

A

90C for 10 mins

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3
Q
A
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3
Q

what compound in broccoli and brussel sprouts is associated with their ‘cancer-busting’ Properties ?

A

Glucosinolates

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4
Q

what is the primary role of sheer press in Fv testing

A

Test texture and maturity levels

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5
Q

which method of freezing results in the smallest ice nuclei and less cellular damage?

A

Cryogenic freezing

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6
Q

why is freeze drying considered a dual process

A

it requires freezing followed by dehydration under vacuum

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7
Q

which gas composition in maintained in controlled atmosphere storage for apples

A

1.5% CO2 and 1.5% O2

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8
Q

what effect does chilling fruits and vegetables by 10C have on respiration rates

A

reduces respiration rate by 2-3 fold

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9
Q

What vitamin retention is often used as an index of gentle processing and good storage conditions

A

vit C

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10
Q

Which pesticide residue standard is primarily a trade standard in Fv

A

Max Residue limit (MRL)

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11
Q

what is the primary natural toxin found in potatoes

A

glycoalkaloids

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12
Q

which antioxidant is abundant in red and blue berries

A

anthocyanins

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13
Q

what temperature is typically used for pasteurization of liquid fv products

A

72C for 15-20 seconds

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14
Q

Which processing method is most suitable for high quality preservation of berry fruits

A

cryogenic freezing

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15
Q

what compound in apples is thought to reduce serum cholesterol

A

pectin

16
Q

what is the primary antioxidant found in extra virgin olive oil

A

tocopherols( Vit E)

17
Q

Which vitamin is converted to its active form by sunlight

A

vit D

18
Q

Which Fv component acts as a prebiotic to stimulate beneficial gut bacteria

A

dietary fibre

19
Q

What is the key challenge of freeze drying FV products

A

High cost

20
Q

What is the Primary microbial hazard for canned FV products with neutral pH

A

Clostridium Botulinum

21
Q

what is the primary rate affecting respiration rate in fresh fruit and veg

A

temperature, O2 levels and CO2 buildup

22
Q

Which fruit has the highest fat content

A

Avocado

23
Q

What is the primary benefit of using controlled atmosphere storage for apples

A

Reduced respiration and extended shelf life

24
Q

what is the primary cause of water loss during cooling and chilled storage of fruit and vegetables

A

loss of vapour pressure from produce

25
Q

Which Veg has the highest protein content per 100g as shown in the table

A

peas

26
Q
A