Beta Glucan: Health Benefits and Product Applications
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BETA GLUCAN: HEALTH BENEFITS AND PRODUCT APPLICATIONS Innovating to Meet Nutrition, Health, and Wellness Needs Every Day To learn more about Tate & Lyle ingredients and innovations, please visit www.foodnutritionknowledge.info and www.tateandlyle.com. MAKING FOOD EXTRAORDINARY FIBRE TYPES AND HEALTH BENEFITS Decades of research point to the grams of fibre per day in total,6-12 health benefits of fibre, including methods to increase soluble fibre supporting cardiovascular health, intake are needed. tempering spikes in blood sugar, Tate & Lyle’s PromOat® Beta Glucan aiding weight management is a viscous soluble fibre made and promoting a healthy gut.1-3 from non-genetically modified Yet, across the globe, average (non-GM) Swedish oats that can intakes are well below the be added to foods and beverages recommended amount despite to promote normal cholesterol the widespread knowledge of levels while increasing dietary fibre’s role in a healthy diet.3 fibre intake. Clinical studies have Dietary fibres are non-digestible demonstrated additional health carbohydrates in the diet that, when benefits associated with oat beta consumed, pass through the small glucan intake, such as maintaining intestine into the large intestine normal blood glucose levels, where they may be partially or supporting gastrointestinal health, completely fermented by colonic and emerging evidence suggests it microbiota.2 Fibres can be soluble or may assist in weight management. • Despite the fact that many insoluble in water as well as viscous consumers say that they are making or non-viscous. Viscous soluble Dietary fibre gap: efforts to consume diets high in fibres, including oat beta glucan, are Intakes vs. recommendations the only fibres that have been shown dietary fibre, current fibre intakes Recommendations for fibre intakes to lower cholesterol.4 Research remain low. range from 25-38 g/day depending studies have demonstrated that on country-specific guidelines.2, 3 increasing soluble fibre intake The World Health Organization • Research indicates that diets higher by 5-10 g/day can reduce LDL (WHO) suggests worldwide cholesterol by up to 5%.5 For greater in fibre are associated with improved consumption of greater than LDL cholesterol reductions, the 25 g/day,13 but fibre intakes in health and reduced risk of certain National Heart, Lung, and Blood diseases, including cardiovascular most countries are well below Institute’s Therapeutic Lifestyle this level6-12 [Figure1]. disease and diabetes. Changes (TLC) diet recommends soluble fibre intakes up to 25 g/day.4 For example, in the United States Considering that most individuals (US), for most age and gender • Oat beta glucan is a viscous, habitually consume less than 25 groups, 5% or fewer meet the dietary soluble fibre that can help maintain normal blood cholesterol and blood glucose levels, as well as Figure 1 support gastrointestinal health, and Average adult fibre intakes by country6-12 emerging evidence suggests it may assist in weight management. 40 ® • Tate & Lyle’s PromOat Beta Glucan ) Recommended Range d / 30 is a great example of an ingredient g e ( that manufacturers can use in the k a t 20 development of new and innovative n i products that may promote e r health while helping to meet the b Fi 10 e population’s dietary fibre needs. c n a r Netherlands Greece UK Germany China Japan Brazil Italy US Mexico Chile Spain F 0 2 | OAT BETA GLUCAN © 2017 Tate & Lyle • www.tateandlyle.com • www.foodnutritionknowledge.info HEALTH BENEFITS Oat beta glucan has been tested • Promotes heart health by • Well tolerated and may support by a number of independent lowering blood cholesterol a healthy gut by producing short- researchers to demonstrate its levels17, 18, 22, 23, 25 chain fatty acids (SCFA)39, 40, 44 physiological health benefits. The • Supports normal blood glucose • May assist with weight following are some highlights of levels by eliciting a lower management through calorie the research on the health benefits glycaemic response19, 26, 27 and fat reduction in foods and of oat beta glucan: promotion of satiety32-34 recommendations for fibre despite nuts and seeds;2 or the fibres can PromOat® Beta Glucan is a source consistent messaging to the public be modified forms of traditional of as high as 34% oat soluble beta to increase dietary fibre intake.14, 15 fibres.2 Adding fibre to new or glucan fibre by weight, and contains Survey data indicates that commonly consumed foods is one some carbohydrate and a small consumers believe fibre is one of strategy to increase the dietary fibre amount of protein; with negligible the most important components of intake of target populations in order fat content [Table 1]. health,16 yet closing the fibre intake to bridge the gap between actual Oat beta glucans from different gap has not been easy, as many intakes and recommended intakes. sources can have a wide-range of diets continue to lack adequate PromOat® Beta Glucan is an molecular weights, as processing servings of fruits, vegetables, whole example of a versatile functional conditions affect the final product. grains, and fibre-fortified foods. fibre ingredient produced by PromOat® Beta Glucan has a high Recent innovations are making Tate & Lyle and currently used molecular weight similar to native it easier for food manufacturers in foods and beverages in North oat beta glucan. The high molecular to fortify their products to help America, Latin America, Europe, weight makes PromOat® Beta Glucan boost fibre content and close and Asia as a potential solution this intake gap. An abundance of to increase fibre intake without research continues to demonstrate sacrificing taste, texture, or that added fibres provide similar enjoyment. Total daily intakes of Table 1 benefits as intact fibres inherent beta glucan as low as 3.0-4.0 g/day Nutritional content of in whole foods. have been shown to promote health PromOat® Beta Glucana through maintenance of normal Fibre innovation (typical values) blood cholesterol and blood glucose While traditional sources of fibre levels while helping to meet daily PromOat® Beta Glucan like whole grains, fruits, and 17, 18 recommended fibre needs. b vegetables should be encouraged, Energy 315 kcal (1319 kj) Characterization of PromOat® added fibres are also important Total fat 0.5 g contributors to dietary fibre Beta Glucan intake. Added fibres, also known Beta glucans from oats and barley Saturated fat <0.1 g as ‘functional’ fibres, are non- are polysaccharides of linear, Carbohydrate 56 g digestible carbohydrates that mixed linkage (1,3), (1,4)-beta-D- ® Fibre are isolated from a food source, glucans. PromOat Beta Glucan c 34 g (beta glucan) or synthesized non-digestible is concentrated beta glucan carbohydrates, that have beneficial derived from non-GM, Swedish Sugars <0.5 g physiological effects in humans.2 oats, produced by a chemical-free, Protein 4 g These fibres can be extracted aqueous, enzymatic process. The Sodium <25 mg from one food source and added final product is a fine, cream- colored powder with a caloric to another (e.g., bran added to a Values per 100 g on a dry weight basis. grain-based foods); or they can be value of 3.2 kcal/g of ingredient.* b Determined by calculation using 2 kcal/g for manufactured from grains like oat the soluble fibre portion. When using 4 kcal/g ® for the soluble fibre portion, the calculated (e.g., PromOat Beta Glucan), or * Caloric labeling varies based on regional calorie value is 385 kcal. from fruit, vegetables, legumes, and country regulations. c Typical range: 32-34 g; minimum: 32 g. 3 | OAT BETA GLUCAN © 2017 Tate & Lyle • www.tateandlyle.com • www.foodnutritionknowledge.info highly viscous. Many health benefits may result in a reduction in heart Favorable blood glucose and associated with oat beta glucan are disease by 3-10%, with the greatest insulin response attributed to viscosity that increases reductions occurring in those with 17, 19, 20 22 The impact of oat beta glucan with molecular weight. higher starting cholesterol levels. on blood glucose and insulin PromOat® Beta Glucan has strong Additionally, the physicochemical responses has also been studied water-binding and emulsifying properties of beta glucans can extensively over the past few properties. It thickens and impact the efficacy in lowering decades. In 2011, EFSA determined stabilizes emulsions, creating a cholesterol. Oat beta glucans with that a cause and effect relationship smooth texture and creamy mouth high molecular weight and solubility has been established between the feel in reduced-fat products. This used at high concentrations are consumption of beta glucans (from ingredient can also lengthen the thought to be more viscous in the both oat and barley sources) and a shelf life of food products due to small intestine. This increased reduction of postprandial glycaemic improved moisture management, viscosity may reduce reabsorption responses.26 Their conclusion and it is acid- and heat-stable, which of bile acids and increase the was based on results of six key allows for easy integration into many synthesis of new bile acids clinical trials that consistently from cholesterol, thus reducing food and beverage products. 18 demonstrated an effect of oat and circulating LDL concentrations. barley beta glucans in decreasing FIBRE INNOVATION In weighing the totality of the postprandial glycaemic responses, evidence, the European Food without disproportionately FOR HEALTH Safety Authority (EFSA) issued a increasing postprandial insulinaemic positive opinion for the ability of responses, at doses of at least 4 g Supports normal blood 26 cholesterol oat beta glucans to lower blood per 30 g of available carbohydrates. cholesterol and reduce the risk of Further, EFSA determined that the In 2012, the World Health cardiovascular disease.18 Several mechanism by which beta glucans Organization reported that coronary countries allow health claims or lower blood glucose has been well heart disease (CHD) was the leading functional claims for beta glucan cause of mortality, resulting in and heart health/cholesterol 21 7.6 million deaths worldwide.