Food Diet and Health Flashcards
What is the main role of soluble solids and titratable acidity tests in FV quality assessment?
Evaluate pH and suagr levels
Which processing method ensures a 6-log reduction of pathogens such a listeria during sous vide(sv) processing?
90C for 10 mins
what compound in broccoli and brussel sprouts is associated with their ‘cancer-busting’ Properties ?
Glucosinolates
what is the primary role of sheer press in Fv testing
Test texture and maturity levels
which method of freezing results in the smallest ice nuclei and less cellular damage?
Cryogenic freezing
why is freeze drying considered a dual process
it requires freezing followed by dehydration under vacuum
which gas composition in maintained in controlled atmosphere storage for apples
1.5% CO2 and 1.5% O2
what effect does chilling fruits and vegetables by 10C have on respiration rates
reduces respiration rate by 2-3 fold
What vitamin retention is often used as an index of gentle processing and good storage conditions
vit C
Which pesticide residue standard is primarily a trade standard in Fv
Max Residue limit (MRL)
what is the primary natural toxin found in potatoes
glycoalkaloids
which antioxidant is abundant in red and blue berries
anthocyanins
what temperature is typically used for pasteurization of liquid fv products
72C for 15-20 seconds
Which processing method is most suitable for high quality preservation of berry fruits
cryogenic freezing