By Miles

Phycocolloids are one of several starch-like chemicals found in some seaweeds. Phycocolloids are used by many industries. For example, phycocolloids are used in the cosmetics industry, they are also used for medicine and in food. Three types of Phycocolloids are Agar, Carrageenan, and Alginate. Listed below are some of the many uses that make Phycocolloids important.

 

Above are some seaweeds that pycocolloids are extracted from.

 

Dairy
Non-Dairy
Industrial
Medical
Pharmaceuticals
Cheeses
Syrups
Air Freshener Gels
Ointments
Lotions
Flans
Relishes
Cleaners
Capsules- Slow release Drugs
Cosmetics
Yogurt
Icings
Explosives
Anti-coagulants
Skin makeup
Milk Shakes
Meringues
Adhesives
Stiffening agent for medium to grow bacteria - mold
Toothpaste
Puddings
Salad Dressings
Casings/ Impressions
Dental impression molds
Laxatives
Egg Nog
Sauces- Gravies
Paints
Ulcer Medicine
Shaving soaps
Mayonnaise
Pastry Fillings
Shoe Polish
Ice Cream
Frozen Foods
Photographic Film
Custards
Jellies- Jams
Textile Dyeing

 

 

Alginate
Carrageenan
Agar

Algin is a phycocolloid extracted from brown algae. It is used for personal care produts like shampoo, cosmetics, conditioner, and shower gel. It is also used for manufacturing dressings for wounds. Alginate also stabilizes the ingredients of tablets for making medicine.

Carrageenan is a phycocolloid extracted from red algae that is widely used in food processing. It acts as a thickening agent in dairy products. Carrageenan is also used to add creaminess to products like ice cream, chocolate, salad dressings, and sherberts. One of the major industrial uses for carrageenan is in air freshener gels.
Agar is a phycocolloid extracted from red algae. Agar is the most potent gel-forming agent of the phycocolloids. Agar is used as a base to grow bacteria on. It is also used to bind proteins to clarify juices wines and vinegar. Along with algin, agar is used as a binder for medical tablets and capsules. It can be used in jellies and fillings too.

Related Links

Facts about agar, Good pictures on how to make agar.
Good facts on Agar, Carrageenan, and alginate. Tells the uses of each.
Gives good information on alginate.

Mrs. Pecks Marin Biology Homepage