Overview
Maltoundecaose is a linear oligosaccharide consisting of eleven α(1→4)-linked D-glucose units, produced via enzymatic hydrolysis of starch. It belongs to the maltooligosaccharide family, which includes maltose, maltotriose, and longer chains. Unlike shorter maltooligosaccharides, maltoundecaose exhibits unique functional properties due to its intermediate chain length, making it valuable in specialized applications. In industrial contexts, maltoundecaose is often derived from controlled starch degradation using enzymes like α-amylase or pullulanase. Its production requires precise conditions to ensure consistent chain length and purity. While not as common as shorter maltooligosaccharides, it serves niche roles in research and high-value formulations.
Physical and Chemical Properties
Maltoundecaose is a white, odorless powder with high water solubility, typical of maltooligosaccharides. Its molecular structure grants it stability under neutral pH and moderate temperatures, though prolonged exposure to heat or acidic conditions may lead to hydrolysis. Unlike reducing sugars, it lacks a free anomeric carbon, reducing reactivity in Maillard reactions. The compound’s mild sweetness (lower than sucrose) and low viscosity in solution make it suitable for formulations requiring minimal sensory interference. Analytical techniques like HPLC or mass spectrometry are used to confirm its purity and degree of polymerization, critical for research and industrial use.
Main Applications
In the food industry, maltoundecaose acts as a functional carbohydrate, providing texture modification and mild sweetness without significant caloric impact. It is explored as a prebiotic due to its potential to selectively stimulate beneficial gut microbiota, though research is ongoing. Pharmaceutical applications include its use as an excipient in tablet formulations or stabilizer for biologics. In biotechnology, it serves as a substrate for enzyme studies or carbohydrate metabolism research. Its precise chain length allows investigations into starch-degrading enzyme specificity.
Safety and Storage
Maltoundecaose is generally non-toxic and classified as GRAS for food use. No significant hazards are associated with its handling, though standard precautions (e.g., avoiding inhalation of dust) are recommended. Storage in airtight containers under cool, dry conditions prevents moisture absorption and microbial growth. For laboratory or industrial bulk storage, desiccants and temperature control (below 25°C) are advisable. Shelf life typically exceeds two years when stored properly, but users should verify stability for sensitive applications.
B2B Procurement Guide
When sourcing maltoundecaose, buyers should prioritize suppliers with documented quality control, such as ISO or food-grade certifications. Key specifications include purity (≥95% by HPLC), residual solvent levels, and batch-to-batch consistency. Custom packaging (e.g., vacuum-sealed bags) may be required for hygroscopic grades. Pricing varies with scale; bulk orders (kilograms or metric tons) often reduce unit costs. Lead times can be longer due to specialized production, so advance planning is essential. Sample testing is recommended to confirm suitability for end-use applications.
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