Dietary Fiber Definition Journal
From crude fiber to dietary fiber df df has been recognized as resistant polysaccharides having degree of polymerization dp 10 in many countries for a long time.
Dietary fiber definition journal. Epidemiological studies have shown that diets which are high in fat sugar and salt and low in df mostly associated with plant based foods can predispose the consumer to the many chronic diseases of our time such as diabetes obesity cardio vascular disease certain cancers and more. Added fibre consists of isolated non digestible carbohydrates that have beneficial. Dietary fibre consists of non digestible carbohydrates and lignin that are intrinsic and intact in plants. Crude fiber cf is the residue of plant food left after extraction by dilute acid followed by dilute alkali.
Dietary fibers and lignin are intrinsic to plants and are classified according to their water solubility properties as either soluble or. Dietary fiber df a new term is the residue of plant food resistant to hydrolysis by human alimentary enzymes. Analytical methods physiological effects food regulation at national level and other interconnected factors have been considered as important criteria in the evolution of the. The latter is also called functional fibres according to the iom definition institute of medicine iom national academy of sciences 2001.
Dietary fiber plays an important role in human health. The modification and application of dietary fiber in foods is reviewed with respect to definition and classification and methods for measurement extraction and modification of dietary fiber. Finally the benefits and risks of increasing consumption. The supplementation of dietary fiber for flour meat and dairy products is also reviewed.
Observational studies have shown that dietary fiber intake is associated with decreased risk of cardiovascular disease. The eu regulation ec no. Establishing a definition for dietary fibre has historically been a balance between nutrition knowledge and analytical method capabilities. While the most widely accepted physiologically based definitions have generally been accurate in defining the dietary fibre in foods scientists and regulators have tended in practice to rely on analytical procedures as the definitional basis in fact.
Efsa included in the definition of dietary fiber also polymers obtained by physical enzymatic or chemical means with a demonstrated beneficial physiological effect. Dietary fiber is a non digestible form of carbohydrates due to the lack of the digestive enzyme in humans required to digest fiber. Since 1953 when the term dietary fiber was coined there has been concern about accurately defining this macronutrient component of the human diet. Dietary fibre df is considered essential for overall human health.