When milk is cultured (eg kefir), what changes occur in terms of lactose, glucose and galactose levels?

What happens to these sugars, and why?

Best Answer

In general, the process of fermentation is a conversion of sugars to alcohol and carbon dioxide. Lactose being a disaccharide composed of glucose and galactose is somewhat harder for the culture to digest, so as fermentation progresses, the levels of all three sugars will fall but lactose will fall at a slower rate than galactose or glucose.

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How does kefir change milk?

The kefir microorganisms ferment milk lactose, but it is unclear how they affect milk proteins. A new study finds that milk proteins are extensively broken down during kefir fermentation, producing 609 peptides unique to kefir and changing the abundance of more than 1,500 peptides.

Does kefir contain galactose?

In kefir grains the main polysaccharide is kefiran, which is a heteropolysaccharide composed by equal proportions of glucose and galactose and is mainly produced by Lactobacillus kefiranofaciens (Zaj\u0161ek et al., 2011).

What is in kefir culture?

Kefir is a complex fermented dairy product created through the symbiotic fermentation of milk by lactic acid bacteria and yeasts contained within an exopolysaccharide and protein complex called a kefir grain.

What is the concentration of glucose and galactose in lactose?

Lactose, a disaccharide, is a sugar composed of galactose and glucose subunits and has the molecular formula C12H22O11. Lactose makes up around 2\u20138% of milk (by weight)....Lactose.NamesFlash point357.8 \xb0C (676.0 \xb0F; 631.0 K)33 more rows

The Truth About Kefir Finally Explained

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