Isomaltooligosaccharide (IMO) Applications in Chocolate
excellent heat stability and acid processing tolerance
Strong moisture retention
low cariogenicity and clean-label friendly profile
Maillard browning participation
Isomaltooligosaccharide (IMO) Applications in Chocolate
What Is Imorawel™Isomaltooligosaccharide
Natural Sweetness, Enhanced Performance
Isomaltooligosaccharide (Imorawel™IMO) is a functional oligosaccharide produced from starch or starch-rich raw materials through enzymatic conversion, refining and concentration. Its main components are isomaltose, panose, isomaltotriose and larger oligosaccharides linked mainly by alpha-1,6 glycosidic bonds.
The product appears as a white to pale yellow powder with a mild, clean sweetness of about 50%-60% that of sucrose. Because its glycosidic linkages are difficult for human gastric acid and digestive enzymes to break down, Imorawel™IMO reaches the large intestine largely intact and is selectively utilized by beneficial bacteria such as bifidobacteria.
It is therefore a functional ingredient that combines gentle sweetness, dietary-fibre properties and digestive-health value. In chocolate and chocolate-coated confectionery, Imorawel™IMO can partially replace sucrose to provide sweetness and body while adding prebiotic, high-fibre and sugar-reduction claims.
1.2 Health Benefits of Imorawel™IMO
Prebiotic effect and gut microbiota balance
IMO is not decomposed by human gastric acid or digestive enzymes, reaches the colon intact and is selectively fermented by beneficial bacteria such as bifidobacteria and lactobacilli, promoting the growth of probiotic bacteria, inhibiting harmful bacteria and improving the balance of the intestinal flora.
Improved digestion and constipation relief
Fermentation by beneficial bacteria produces short-chain fatty acids such as acetic, propionic and butyric acid, lowering intestinal pH, improving the gut environment and stimulating peristalsis, which helps improve digestion and relieve constipation.
Enhanced mineral absorption
IMO helps promote the absorption of minerals such as calcium, magnesium and iron, in particular improving calcium absorption, which is beneficial for bone health.
Low caloric value and tooth-friendly
With about half the caloric value of sucrose, it helps lower the total energy of snacks and suits weight-management consumers; it is also not readily fermented by oral bacteria into acid, so it does not cause dental caries and is suitable for children and oral-health-conscious consumers.
1.4 Advantages of Imorawel™IMO in Chocolate Applications
Enabling reduced-sugar, high-fibre formulations
Combining sweetness with dietary-fibre properties, Imorawel™IMO replaces part of the sucrose while markedly raising fibre content, helping create "no-added-sugar plus high-fibre" chocolate without sacrificing sweetness or body.
Prebiotic health proposition
As a well-established prebiotic, it can be combined with inulin, polydextrose and fructo-oligosaccharides to give chocolate a gut-health concept, matching the trend of functional snacking in everyday life.
Strong processing stability
Heat and acid tolerant, Imorawel™IMO remains stable during chocolate refining, conching, tempering and enrobing, without decomposing or affecting coating gloss and forming, which suits continuous production.
Mild taste with moisture-retention properties
Its clean sweetness has no bitter aftertaste or cooling sensation, and its moisture-retaining and anti-crystallization effects improve the coarse texture often seen in sugar-free chocolate and keep fillings smooth.
Tooth-friendly and suitable for a wide audience
Non-cariogenic, it suits children's chocolate; its lower energy content fits weight-management and metabolism-conscious consumers.
Label-friendly and widely accepted
A common starch-derived functional sugar ingredient with a long-established application history in many countries, it combines flexibly with steviol glycosides, maltitol and other sweeteners to meet formulation and labelling needs in different markets.
2. Product Applications
Product Information
Brand: Copenhagen / Geben Health | Company: Cheng Ce Trade
Cereal twisted crunch snack coated in dark chocolate; sugar-free with 0 trans fat and high dietary fibre for on-the-go satiety.
Key Ingredients
Imorawel™IMO Value
Multi-Source Fibre Synergy: Forms a multi-source dietary-fibre system with polydextrose and inulin, contributing to 22.4g fibre per 100g while maintaining zero sugar.
Texture & Processing Stability: Mild sweetness and dispersibility offset the coarse texture of cereal bran, while heat tolerance supports smooth chocolate enrobing.
Product Information
Brand: Luckau | Company: Luckau Industria e Comercio de Alimentos
High-fibre milk chocolate block embedded with pistachio pieces, formulated with zero lactose, gluten, polyols, or added sugar.
Key Ingredients
Imorawel™IMO Value
Primary Sweetness & Bulk: Acts as the primary sweetness and bulking agent to avoid polyol-induced digestive discomfort while delivering a full sucrose-like mouthfeel.
High Fibre Contribution: Provides 11g of soluble dietary fibre per 25g serving, enabling a high-fibre profile with excellent processing and bloom stability.
Product Information
Brand: Abso Coco Bar | Company: Absorice
Vegan, gluten-free, no-added-sugar coconut bar enrobed in dark chocolate, featuring dual prebiotic fibres.
Key Ingredients
Imorawel™IMO Value
Dual Prebiotic Function: Synergizes with fructo-oligosaccharides to supply 25g of fibre per 100g and enhance bifidogenic gut-health benefits.
Center Binding & Stability: Moisture-retaining and binding properties hold the coconut center together into a non-crumbly texture while ensuring coating stability.
About the Company
Baolingbao Biology Co., Ltd.
Industry Firsts & Milestones
Pioneered functional sugars in China since 1997, becoming the first domestic oligosaccharide producer, joining Coca-Cola's global supply chain in 2003, listing on the A-share market in 2009, and industrializing HMOs in 2024.
Intelligent Manufacturing & Digitalization
Invested RMB 350 million in digital production lines and smart warehousing, utilizing 5G, big data, and blockchain for end-to-end quality control and reliable ingredient supply.
Contact Us
baolingbao@blb-cn.com
