Many gums are used in the food industry as thickening agents or emulsion stabilisers, it mainly contain ________.

Many gums used in the food industry, such as guar gum, xanthan gum, and agar, primarily contain polysaccharides. These are complex carbohydrates that have the ability to absorb water and form gels, making them effective as thickening agents and emulsion stabilizers in food products.