Seaweed extract

A useful property of the red seaweed extracts is their abiUty to form gels with water and milk. Kappa-carrageenan reacts with milk protein micelles, particularly kappa-casein micelles. The thickening effect of kappa-carrageenan in milk is 5—10 times greater than it is in water at a concentration of 0.025% in milk, a weak thixotropic gel is formed. 

As with carrageenan, another seaweed extract, the ability to bind to calcium makes alginates useful in dairy products as a thickener. It also makes alginates useful as wound dressings, where they absorb fluids, and stop bleeding, and act as a scaffold. 

Scarlet GN, 119. See also FD C Red 4 scopalomine, 178 SD-40, 56, 70, 174 SD alcohol 40-B. See ethanol SDIC. See sodium dichloroisocyanurate seaweed extract. See agar, carrageenan sequestering agents, 19,49-54,242. See also water softeners serine, 123... 

Liquid seaweed extract (see alsop.l95) is a well-known plant tonic that can be used as a root drip, drench, or foliar spray, to help boost a plant s defenses against pests and diseases. There are a range of other plant-based tonics and stimulants available that are said to have similar effects. They may be worth trying while your garden is adjusting to an organic regimen. 

A weekly dose of high-potash organic liquid fertilizer see pp.l94-195) is necessary for flowering plants and tomatoes. For baskets of herb plants, use a general-purpose liquid fertilizer every two weeks. Seaweed extract added to the fertilizer can be beneficial. 

Feed with a general or potash-rich liquid fertilizer (see pp.194-195) as appropriate. Seaweed extract will give plants a boost. 

Spraying with dilute seaweed extract (seep.195) is very beneficial, especially in spring and early summer. Both trees and bushes will take up nutrients more effectively, receive a full range of trace elements, and have enhanced hardiness to frost damage if given regular seaweed sprays... 

What to do Grow resistant cultivars. Mulch under trees to stop soil from drying out Water trees in dry weather. In winter, cut out infected shoots. In spring, remove infected leaves and shoots. Spray with seaweed extract to promote strong growth. Fungicide spray Sulfur, although it can harm some apples. Check the label before use. 

Verkleij, F.N. 1992. Seaweed extracts in agriculture and horticulture a review. Biological Agriculture and Horticulture 8 309-324. 

An enzyme that is involved in the biosynthesis of carrageenan has been detected in seaweed extracts.387 It converts 6-O-sulfo-D-galactosyl into 3,6-anhydro-D-galactosyl units at the polymer level, and this structural change significantly affects gelling properties that depend on conformation.384... 

Seaweed Extract Total N, % Galactose, % Ketose, % Sulfur (SOt), % Ash, %... 

Meyer, K. D., Paul, V. J., Sanger, H. R., and Nelson, S. G., Effects of seaweed extracts and secondary metabolites on feeding by the herbivorous surgeonfish Naso lituratus, Coral Reefs, 13, 105, 1994. 

M. Miguens-Rodriguez, R. Pickford, J. E. Thomas-Oates, S. A. Pergantis, Arsenosu-gar identification in seaweed extracts using high-performance liquid chromatography/ electrospray ion trap mass spectroscopy, Rapid Common. Mass Spectrom., 16 (2002), 323-331. 

Natural gums include plant exudates, seed gums, plant extracts, seaweed extracts, and the extracellular microbial polysaccharides. Plant exudates include gum arabic, gum ghatti, gum karaya, and gum tragacanth. Seed gums include... 

King, A.H. (1983). Brown seaweeds extracts (alginates). In M. Glicksman (ed). Food Hydrocolloids. Boca Raton, FL, pp. 115-188. 

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