Module 3 Flashcards

1
Q

Bifidobacterium classifciation

A

Actinobacteria –> Actinobacteria –> Actinobacteridae –> Bifidobacteriales

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2
Q

Hight chromosomal G+C content

A

Bifidobacterium and Propionibacterium

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3
Q

Y morphology

A

Bifidobacterium

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4
Q

Human milk Isolate

A

Bifidobacterium

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5
Q

Bifidobacterium Simple Sugars

A

Fructose-6-P-PK pathway (F6PK)

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6
Q

Bifiodobacterium not LAB because

A

Lactic acid not end main product

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7
Q

F6PK

A

F6P –> Erythrose 4P + Acetyl-P (Joins other 2)

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8
Q

Bifid Shunt

A

1 mole glucose –> 2.5 mol ATP + 1.5 mole acetate + 1 mole lactate

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9
Q

Non-digestible Oligosaccharides (NDOs)

A

Obtained from complex carbs or enzymatically produced from disaccharides

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10
Q

NDOs

A

Group of glycans that include various prebiotics and increase Bifidobacterium numbers (selective probiotic effect)

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11
Q

NDO Types

A

FOS + Galacto (GOS)

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12
Q

Human milk oligosaccharides (HMOs)

A

B. bifidum and B. longum subsp. infantis

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13
Q

Bifidobacterium can

A

Hydrolyze complex sugars like HMO to glucose –> glycolytic pathway

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14
Q

Propionibacterium Classification

A

Actinobacterium –> Propionbacteriales –> Propionibacteriaceae

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15
Q

Anaerobic and aerotolerant

A

Propionibacterium

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16
Q

Catalase positive

A

Propionibacterium

17
Q

Enzyme for Propionic acid

A

Transcarboxylases

18
Q
A
19
Q

Propionobacterium in Groups

A

Classical/dairy or Cutaneous

20
Q

Classical/Dairy

A

GRAS and isolated from dairy Products

21
Q

Swiss cheese and probiotics

A

Propionibacteria (freudenreichii and acidipropionici)

22
Q

Produce antimicrobial compounds used in food preservation (cheese)

A

Propionibacterium

23
Q

Propionibacterium functional products

A

B vitamins, trehalose, CLAs

24
Q

Wood-Werkmann Cycle

A

Main product of fermentation is propionate by transcatoxylases