Lactose is used as a selective nutrient in the agar as not all microbes can process lactose
to increase options for nutrient intake in an environment with a short growing season
On nutrient agar, Yersinia appears as smooth, opaque colonies with a pale yellowish color. On EMB agar, colonies may show greenish metallic sheen due to lactose fermentation. On MacConkey agar, Yersinia typically forms colorless to pale pink colonies due to its inability to ferment lactose.
Yes, honey is a suitable alternative for people with lactose intolerance, as it does not contain lactose. It is a natural sweetener that can be used in various dishes and beverages without causing digestive issues associated with lactose. However, individuals should ensure they are not allergic to honey or have any other dietary restrictions before using it.
Ailments that are associated with the consumption of carbohydrates include diabetes, hypoglycemia and galactosemia. Other complaints worthy of mention include dental decay and lactose intolerance.
Nutrient agar plates: used for general growth of most bacteria. Blood agar plates: used to differentiate bacteria based on their ability to hemolyze red blood cells. MacConkey agar plates: used to differentiate lactose-fermenting bacteria from non-lactose fermenters based on their ability to grow and ferment lactose.
Lactose, which is a disaccharide (sugar) makes up between 2% and 8% of milk by weight. In digestion, it is broken down into glucose and galactose (monosaccharides). But lactose does not have the sweet taste associated with most sugars.
LACTOSE sugar
People with celiac disease may also experience lactose intolerance because they don't produce enough of the enzyme lactase, which breaks down the sugar in milk into a form the body can absorb.
Lactose, which is a disaccharide (sugar) makes up between 2% and 8% of milk by weight. In digestion, it is broken down into glucose and galactose (monosaccharides). But lactose does not have the sweet taste associated with most sugars.
lactose
proteins are made up of chains of amino acids