We supply global brands and manufacturing lines with the finest raw proteins and fibers, essential for high-performance protein bar production.
The global protein bar sector has transitioned from a niche bodybuilding supplement to an essential daily lifestyle food. Modern consumers look past plain protein counts to evaluate clean-label verification, non-GMO status, and plant-based protein profiles. Driven by functional diets like keto, low-GI, and high-protein active lifestyle choices, brands need customized protein bar bases that do not compromise on taste, mouthfeel, or storage longevity.
At Xinrui Group, we serve as the backbone for top global brands. As an integrated manufacturer, we specialize in supplying high-density raw proteins and fibers, including Isolated Soy Protein (ISP), Vital Wheat Gluten (VWG), and Soy Dietary Fiber (SDF). By addressing structural integrity at the raw material level, we help companies design soft, non-hardening bars that maintain excellent shelf life.
How large enterprises secure supply chain resilience, pricing stability, and clean-label certifications.
Modern food brands face strict multi-market audits. Upstream suppliers must offer verified non-GMO identity preservation (IP Non-GMO), food safety credentials (BRC, HACCP), and cultural certifications (Halal, Kosher) to enter global retail networks smoothly.
Dealing directly with large primary processors is critical. With our capacity to process 500,000 tons of wheat flour and 180,000 tons of soybeans annually, we eliminate middlemen and provide direct pricing protection and supply security.
Ingredients must perform dynamically. Proteins require specific emulsion, water binding capacity (WBC), gel strength, and neutral flavor profiles to blend efficiently into bar formulas without tasting dry or chalky.
Guanxian Xinrui Industrial Co., Ltd. (formerly known as Guanxian Ruixiang Biotechnology Development Co., Ltd) was established in 2007 with registered capital of 100 million Yuan. The facility processes 500,000 tons of wheat flour per year, utilizing advanced tri-canter separation technology to manufacture high-purity vital wheat gluten, wheat starch A, and wheat starch B. The residual pentosan and starch B are converted into high-grade alcohol and feed, creating a highly efficient circular economy.
Shandong Kawah Oils Co., Ltd., established in 2014 with 120 million yuan registered capital, is our dedicated soybean processing powerhouse. Handling 180,000 tons of domestic Non-GMO soybeans annually, it relies on the state-of-the-art spray drying tower from Dachuanyuan—the largest single production line in China—to manufacture premium Isolated Soy Protein (ISP) and food-grade dietary fiber step-by-step.
Creating high-performance protein bars requires balancing texture, taste, nutritional density, and shelf-life. Our customized ingredient solutions address the specific challenges that food scientists encounter during formulation.
Protein bars often harden over time due to slow moisture transfer and protein aggregation. By combining our Highly Dispersible Isolated Soy Protein (9030/9032) with Soy Dietary Fiber, formulators can build a moisture-retaining grid that keeps bars soft and chewy throughout their shelf life.
Plant proteins sometimes carry beany or grassy notes that require expensive masking agents. Kawah Oils' advanced flash-desolventizing and spray-drying technologies ensure a neutral tasting soy protein base, lowering production costs and improving consumer acceptance.
To hit strict target macros (e.g., 20g protein, <2g sugar), developers must balance active binders with bulking agents. Our Vital Wheat Gluten and Soy Dietary Fiber act as functional fillers that improve tensile strength, preventing bar breakage on packaging lines.
Xinrui Group controls every stage of production, from raw agricultural sourcing to final packaging. Our wheat processing lines use modern tri-canter separation systems, running in a fully closed, clean-room environment to prevent cross-contamination and guarantee consistent gluten protein quality.
For soy processing, Shandong Kawah Oils operates a dedicated Dachuanyuan Spray Drying Tower. This single-line setup processes low-temperature desolventized soybean flakes into high-emulsification isolated soy proteins, ensuring uniform particle size and reliable hydration performance in food manufacturing.
Tour our state-of-the-art wheat fractionation facilities and soybean extraction plants virtually through our on-site videos.
We meet global export requirements with certifications that confirm our commitment to raw-material purity and strict allergen controls.
Developing plant-based protein bars requires managing how protein molecules bind water and fats. While whey protein isolate has been a long-time industry standard, soy protein isolate (SPI) offers a complete amino acid profile with superior structural properties. Combining wheat gluten with isolated soy protein creates a balanced mix: wheat gluten provides elasticity and chewiness, while soy protein isolate delivers a smooth, clean bite.
A common issue with high-protein bars is hardening during storage. This is caused by gradual starch recrystallization and ongoing protein hydration, which draws water away from the liquid matrix. Formulators can resolve this by replacing 15% to 25% of the primary protein with Soy Dietary Fiber (SDF). SDF acts as a structural buffer, binding water molecules and maintaining optimal moisture levels to keep the bar soft over time.
High-fat formulas, such as keto bars containing MCT oil or nut butters, are prone to oil bleeding or fat bloom. Using an emulsion-grade isolated soy protein (like our 9007B-C or 9001BW) helps emulsify fats within the bar. The protein molecules form a stable barrier around fat droplets, keeping the lipids evenly suspended and preventing oily separation during packaging and storage.
We supply specialized raw materials to food, beverage, and chemical manufacturers worldwide. Click a product below to review technical specifications.
Xinrui Group