Extrinsic factors of food spoilage are the non-substrate factors that affect the spoilage of foods and food products and which are not innately found in the foods. These factors are the environmental factors that are implicated in food spoilage occurrences. They are different from the intrinsic factors that cause food spoilage. The extrinsic factors are […]
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Food Microbiology
Intrinsic factors of food spoilage are those inherent factors that are associated with the food and which in several ways affect the overall physical and chemical composition of the food. Intrinsic factors are food related factors; and they are generally referred to as the physico-chemical properties of food. The composition of a particular food is
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Food Microbiology
What is food spoilage? Food spoilage is simply defined as the change in the overall appearance, taste and smell of a particular food or food products due to microbial activities. Food as earlier said in our previous posts contains nutrients that also support the growth of microbes especially those that are notorious in causing food
COLLECTION OF SPUTUM Sputum specimens are collected from patient’s suspected to have respiratory disorders example tuberculosis (TB) and pneumonia. A sterile wide – mouthed container is given to the patient to collect the sputum. Sputum passes via the pharynx and the mouth as it is being collected, and there is always a possibility of being
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Laboratory Biosafety, Microbe Lab, Safety tips in Microbiology Lab
The sample collection unit is one of the most important units in the clinical microbiology laboratory because it acts as a middle man between the patients and the microbiologists working in the laboratory. The sample collection unit is largely responsible for the collection of different clinically important specimens from patients (both outgoing and in-patients), registration
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Microbe Lab, Laboratory Biosafety, Safety tips in Microbiology Lab
Good laboratory practice (GLP) is simply defined as a laboratory quality measure or protocol that is concerned with the organizational process and the conditions under which laboratory experimentations (inclusive of other non-clinical studies) are planned, performed, monitored, recorded, archived, retrieved and reported. The main goal of GLP in any medical or non-medical laboratory is to
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Laboratory Biosafety, Microbe Lab, Safety tips in Microbiology Lab
Pathogenic microorganisms inclusive of viruses, bacteria, and fungi portends health challenges to the general public and healthcare workers or laboratory personnel’s working with these organisms if the proper precautionary measures are not followed in the handling of these microbes. The extensive use of these organisms in research settings or hospital laboratories should be done within
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Laboratory Biosafety, Microbe Lab, Safety tips in Microbiology Lab, Techniques in Microbiology Lab
Microorganisms are studied for diverse reasons. These microscopic forms of life play tremendous significant roles in the natural environment. They are ubiquitously found in all environments including aquatic, terrestrial and arboreal habitats as well as in hot springs and icebergs where life rarely exists. Microorganisms harbour many beneficial qualities, and these features of theirs have
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General Microbiology
Immunoglobulin D (IgD) is an antibody with the basic four polypeptide structure of an immunoglobulin (Figure 1); and IgD is mostly found attached to the membranes of B cell. IgD is a membrane bound immunoglobulin, and it has a molecular weight (MW) of about 180, 000 DA. Immunoglobulin D is present in only trace amounts
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Immunology & Immune System
Immunoglobulin G (IgG) is a monomeric antibody and the most predominant immunoglobulin in secondary (memory) immune response to an invading antigen. It accounts for about 80 % of the total immunoglobulin pool in blood serum or plasma and tissue fluids. IgG unlike other immunoglobulins crosses the placental barrier, and thus it provides the neonate or
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Immunology & Immune System