a) Discuss the spoilage of following foods:

i. Poultry and Poultry Products

ii. Cereal and Cereal Products

(i) Poultry and poultry products
 

Ans : The primary causes of poultry products spoilage are as follows:

Prolonged distribution or storage time

Inappropriate storage temperature

High initial bacterial counts

High post-rigor meat pH

Spoilage is caused by the accumulation of metabolic by-products or the action of extracellular enzymes produced by psychrotrophic spoilage bacteria as they multiply on poultry surfaces at refrigeration temperatures. Some of these by-products become detectable as off-odors and slime, as bacteria utilize nutrients on the surface of meats.

Off-odors do not result from breakdown of the protein in skin and muscle, as previously thought, but from the direct microbial utilization of low molecular weight nitrogenous compounds such as amino acids, which are present in skin and ________ ______ __________ ___ _____ ___ ____ ___.
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