Poultry, Egg and Meat Questions

• Egg spoilage — ‘‘Black rot’’ of eggs: Which microorganisms are most commonly responsible for this black discoloration defect during storage?
• Meat ageing under controlled conditions: Which specific mold is most recommended to improve flavor and tenderization during the ageing of beef?
• Egg spoilage terminology: What term is used for the very earliest stage of fungal growth on eggshells, visible as tiny discrete colonies?
• Processed meats — Greening of sausage: A green ring, green core, or green surface often arises due to hydrogen peroxide formed by which microbial/physiological factors?
• Egg spoilage — ‘‘Green rot’’: This defect in eggs is chiefly associated with which bacterium?
• Meat defects — ‘‘White spot’’ on stored meat: Which organism is classically implicated in producing visible white spots or patches on meat surfaces?
• Off-flavors in foods: A distinct musty or earthy flavor is most commonly attributed to which microorganisms in raw materials or water?
• High-humidity storage of foods: What outcome do molds typically cause on exposed surfaces when relative humidity remains high during storage?
• Vacuum or oxygen-impermeable packaging — Bacon spoilage: Unopened sliced bacon, packed in film with low oxygen permeability, is most often spoiled by which microbes?
• Food microbiology — In the context of egg spoilage, which molds are typically implicated as common culprits during storage and handling (select the most inclusive choice)?
• Egg quality and safety — Considering typical storage and handling conditions, which microbial group most frequently causes spoilage of eggs?
• Meat discoloration — Yellow patches on meat most often result from bacteria producing yellow pigments, typically belonging to which genera?
• Beef spoilage under chill — Which microorganisms commonly grow on beef at about 15°C and above (choose the most inclusive correct option)?
• Sausage defects — “Chill rings” in sausages have been attributed to which of the following causative factors?
• Meat spoilage identification — The defect known as “black spot” on meat is produced mainly by which mold?
• Vacuum-packed meat ecology — Which microorganisms are most commonly responsible for spoilage under vacuum packaging conditions?
• Egg defects — “Pink rot” of eggs is classically associated with strains of which bacterial genus?
• Off-odors from nearby sources — Growth of Streptomyces on straw or in the vicinity of egg storage is most likely to impart which sensory defect to eggs?
• Role of lactic acid bacteria (LAB) in meat — Which outcomes are commonly attributed to LAB activity in meats during storage and distribution?
• Meat spoilage under aerobic storage – Which moulds are responsible for the characteristic green patches that appear on the surface of meats?