Soy protein naturally contains some anti-nutritional factors, such as trypsin inhibitor and phytic acid, which can affect protein digestion & absorption, mineral utilization, and physiological functions, or may have adverse effects on health.

Trypsin inhibitors are anti-nutritional factors that reduce the activity of trypsin, a key digestive enzyme responsible for protein hydrolysis in the small intestine. By binding to the active site of trypsin, they prevent the enzyme from effectively digesting dietary proteins, thereby decreasing protein utilization and amino acid absorption.

Phytic acid is a naturally occurring compound primarily found in plant seeds. It serves as the major storage form of phosphorus in many plants, particularly in grains, legumes, nuts, and oilseeds. By binding minerals and forming insoluble phytate complexes, phytic acid decreases mineral bioavailability and may negatively affect nutrient utilization.

Low anti-nutritional factor ISP refers to ISP products with a minimum purity of 90%, produced through unique processes that significantly reduce naturally occurring anti-nutritional factors in soybeans, such as phytic acid and trypsin inhibitors.

Solbar’s low ANF ISP delivers a purer flavor, enhanced solubility and superior functionality, to achieve improved protein digestibility, enhanced mineral bioavailability, reduced digestive discomfort, and a favorable low-sodium, high-calcium nutritional profile, making it ideal for populations that are highly sensitive to these anti-nutrients or where optimal nutrient absorption is critical.

Infant Formula Foods

Low ANF ISP serves as core ingredient for soy-based infant formula. Both EU Regulation (EU) 2016/127 and national standards (e.g., GB 10765-2021) clearly stipulate that ISP is a permitted protein source for use in soy-based infant formula. Efficient removal of anti-nutritional factors helps reduce allergy risks, improve mineral absorption, and alleviate gastrointestinal discomfort in infants.

High-End Sports Nutrition

Low ANF ISP serves as efficient & pure plant-based protein source in sports nutrition field. Low levels of trypsin inhibitors mean more complete protein hydrolysis and higher amino acids bioavailability, which supports muscle synthesis and recovery. Low-phytate treatments enhances protein solubility under neutral pH conditions, making it ideal for ready-to-drink protein beverages, sports recovery drinks, and liquid foods.

Special Medical Foods

Low ANF ISP, with its high absorption rate and low renal burden, has been proven to be a preferred protein source in special medical food applications such as digestive disorders, post-operative recovery, and elderly nutrition.

High-end Meat & Dairy Alternatives

Combining high purity with excellent digestibility, low ANF ISP can not only enhance nutritional value, but also provide critical texture-improving functions, making it ideal for high-end meats and dairy alternatives applications. The beany odor is minimized after removing low-molecular-weight off-flavor compounds, resulting in a cleaner flavor profile in finished products, meeting the clean-label requirements.

Aquaculture & Young Animal Feed

Low ANF ISP can significantly improve protein digestibility & utilization rate in young animals, effectively alleviating weaning stress responses such as diarrhea, and is an ideal plant-derived protein source to replace animal proteins like fish meal & whey protein. High nutritional value and low allergenicity make it a cost-effective alternative to animal proteins, reducing feed formulation costs while offering a stable, sustainable protein source.