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Preservation and Spoilage of Sugars and Sugar Products

Preservation and Spoilage of Sugars and Sugar Products

Contamination Of Sugars And Sugar Products Sucrose  Maple Syrup  Honey  Candy  Preservation Spoilage Sucrose During the production of sugar, the original cane or beet juice becomes increasingly purified toward sucrose and the concentration of sugar in solution increases until crystalline sugar and high-sugar molasses are produced. The more pure a product is, the less suitable … Read more

Contamination of Foods

Contamination of Foods

The growing plants carry a common microbiome on their surfaces. They could be contaminated by external sources. Animals too have a normal surface flora, as well as an intestinal one. They also release organisms through excretions and secretions. They can are also contaminated by outside sources. Animals and plants with parasitic diseases, of course, carry the pathogen responsible for the illness. The healthy tissues that are inside both animals and plants nevertheless are found to have a small number of living microorganisms or none at all.

Food Microflora – Molds

Food Microflora - Molds

What are Molds? Morphological Characteristics of Molds In their classification and identification, they are based on their morphology (i.e. their form and structure as determined by their microscopic and macroscopic appearance). 1. Hyphae and Mycelium of Molds 2. Reproductive Parts or Structures  of Molds (a) Asexual Spores  of Molds (b) Sexual Spores  of Molds These … Read more

Foodborne Microorganism – Bacteria

Foodborne Microorganism - Bacteria

To identify bacteria in food, microscopic examination is the first step. It can determine the structure, shape, size, aggregation and staining reactions. These characteristics could be particularly important.

Food Spoilage General Principles – Chemical Changes Caused by Microorganisms

Food Spoilage General Principles - Chemical Changes Caused by Microorganisms

When food is called “spoiled”, it usually means that there is decay or decomposition of an unfavorable nature. Foods unfit for consumption are not considered spoiled. Spoiling could be caused by one or more of these:

Principles of Food Preservation

Principles of Food Preservation

Unwanted microorganisms can cause food to be contaminated. The contamination is usually natural, but it can also be artificial. Natural contamination is when microorganisms attach to food during its growing stages. For example, Fruits are often contaminated by yeasts, which ferment the fruits’ carbohydrates. Artificial contamination is when food is improperly handled or processed.

Methods of food preservation – Physical and Chemical Methods 

Methods of food preservation - Physical and Chemical Methods 

Food preservation methods have resulted in increasing the duration or shelf time of food items through using a variety of preservation methods.

Food Preservation By Low Temperatures

Food Preservation By Low Temperatures

Low temperatures are employed to stop chemical reactions and the action of enzymes in food and to stop or slow the development and activities of microorganisms found in food items.

Food Preservation by Using High Temperatures

Food Preservation by Using High Temperatures

The utilization of high temperatures to preserve food items is based on their damaging effects on microorganisms as well as their spores.

Drying Method of Food Preservation – Types, Methods, Examples

Food Preservation by Drying

Food Preservation by Drying Purpose of drying The purpose of drying in food processing is multi-fold and serves several important functions. Here are the key purposes of drying: Principle of Preservation by Drying/ Dehydration/ Concentration The principle of drying in food processing is based on the state of water in the food and its effect … Read more

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