L13 Pre and Probiotics

1.    Which of the following is NOT a property of prebiotics?

• a)    It can withstand relatively high temperatures

• b)    It can be digested by salivary amylase

• c)    It can stimulate growth of Lactobacillus

• d)    It is fermented by gut bacteria

1.    Which of the following is NOT a prebiotic?

• a)    Pyrodextrin

• b)    Soya-oligosaccharide

• c)    Fructooligosaccharide

• d)    Tryptophan

1.    Prebiotics increase the absorption of __________ that is beneficial to the body.

• a)    iron

• b)    phytate

• c)    mucin

• d)    triacyglycerol

1.    Which of the following does NOT accurately describe the effect of fructooligosaccharides on the body?

• a)    Strengthens intestinal barrier

• b)    Increases bone mineralisation

• c)    Protects against pathogenic bacteria in gut

• d)    Enhances lipogenesis

1.    Which of the following food products is LEAST likely to contain inulin?

• a)    Wheat

• b)    Banana

• c)    Fish

• d)    Cheese

Which of the following statements about inulin is TRUE?

• a)    It consists mainly of glucose molecules

• b)    It is much sweeter than sucrose

• c)    It readily precipitates in water

• d)    It can be used as a stabiliser

When manufacturing Galacto-Oligosaccharide, _________.

• a)    fructose is used as the starting material

• b)    glucose and galactose are removed via filtration

• c)    endoinulinase is added into the reaction

• d)    the syrup is sublimed

Which of the following is NOT a probiotic?

• a)    Streptococcus thermophilus

• b)    Lactobacillus plantarum

• c)    Bifidobacterium lactis

• d)    Escherichia coli

Which of the following statements about manufacturing of probiotics is FALSE?

• a)    Batch fermentation is more cost efficient than continuous fermentation

• b)    Freeze drying allows greater probiotic viability than spray drying

• c)    Synthetic fermentation media is preferred to dairy-based media

• d)    Temperature affects recovery of probiotics from powder form

Which of the following is NOT a benefit of consuming probiotics?

• a)    It lessens the effect of lactose intolerance

• b)    It improves the survival of prebiotics in the gut

• c)    It reduces gut inflammation

• d)    It controls the growth of Helicobacter pylori