Can be harvested mechanically, used mainly in production of paper. Synthetic gum Cellulose gum - semisynthetic, cellulose reacted with Sodium monochloroacetate, used widely in detergents, paper industry, latex paints, processed foods. Pectins Pectins are used in jams and jellies, obtained from apple residue and citrus peels, function in plant cells as cementing substances. Starch Starch is extracted from seeds, tubers or roots, is a chain of glucose molecules. Starch is packed into insoluble granules, these granules have characteristic shapes and sizes depending on the source.
High temperatures cause the granules to burst.
Sources of starch are corn, wheat, sorghum, arrowroot, cassava and sago. More than half of the starch used annually is used in cardboard production, also used as a food thickener, paste, laundry. B. Latexes Latex is a complex mixture of organic compounds which form an emulsion in water and are produced in cells called laticifers, found mostly in dicots. May be byproducts that plants secrete into laticifers as waste. Opium poppies produce latex but it is inelastic.