Search results
Results from the WOW.Com Content Network
A SCOBY used for brewing kombucha. Kombucha co-culture with SCOBY biofilm. Symbiotic culture of bacteria and yeast (SCOBY) is a culinary symbiotic fermentation culture consisting of lactic acid bacteria (LAB), acetic acid bacteria (AAB), and yeast which arises in the preparation of sour foods and beverages such as kombucha. [1]
The lactic acid bacteria (LAB) are either rod-shaped (), or spherical (), and are characterized by an increased tolerance to acidity (low pH range).This aspect helps LAB to outcompete other bacteria in a natural fermentation, as they can withstand the increased acidity from organic acid production (e.g., lactic acid).
Kombucha is thought to have originated in China, where the drink is traditional. [3] [4] By the early 20th century it spread to Russia, then other parts of Eastern Europe and Germany. [5] Kombucha is now homebrewed globally, and also bottled and sold commercially. [1] The global kombucha market was worth approximately US$1.7 billion as of 2019.
Food microbiology is the study of the microorganisms that inhabit, create, or contaminate food.This includes the study of microorganisms causing food spoilage; pathogens that may cause disease (especially if food is improperly cooked or stored); microbes used to produce fermented foods such as cheese, yogurt, bread, beer, and wine; and microbes with other useful roles, such as producing ...
The catalase test tests whether a microbe produces the enzyme catalase, which catalyzes the breakdown of hydrogen peroxide. Smearing a colony sample onto a glass slide and adding a solution of hydrogen peroxide (3% H 2 O 2) will indicate whether the enzyme is present or not. Bubbling is a positive test while nothing happening is a negative ...
A microbiological culture, or microbial culture, is a method of multiplying microbial organisms by letting them reproduce in predetermined culture medium under controlled laboratory conditions. Microbial cultures are foundational and basic diagnostic methods used as research tools in molecular biology .
used to detect gas production in sugar fermentation media; the tube is placed in an inverted fashion so that gases produced get trapped in it and do not float away to the surface Gas-pak: releases gases to remove oxygen from a closed container, usually for anaerobiosis: Glass slide: used to observe specimens under microscope Haemagglutination plate
As an eukaryote, S. cerevisiae shares the complex internal cell structure of plants and animals without the high percentage of non-coding DNA that can confound research in higher eukaryotes. S. cerevisiae research is a strong economic driver, at least initially, as a result of its established use in industry.