Analyzing Excellence in Guar Gum

As a professional biological research company, CD BioGlyco has accumulated a wealth of experience in the field of Pharmaceutical Excipient Analysis and provides high-quality guar gum analysis services to clients worldwide. Guar gum is a highly purified natural polysaccharide, the most potent and water-soluble natural polymer known. Due to its unique molecular structure characteristics and naturalness, it is rapidly becoming a pharmaceutical excipient with superior performance and a new type of environmentally friendly paper-making auxiliary.

• Identification
  • The sample to be examined is placed under the microscope after adding an appropriate amount of iodine test solution. Most of the cells of guar gum are round, pear-shaped, or polyhedral, and their intracellular material is yellow to brown.
  • Add an appropriate amount of water to the sample to be tested and shake vigorously, if a gel or semi-gel appears, the sample is proven to be guar gum.
  • A moderate amount of sodium tetraborate solution is added to an aqueous solution of the sample, if this sample is guar gum, the solution will appear as a translucent elastic gel.
• Content analysis
  High-performance liquid chromatography (HPLC) is used to determine the amount of guar gum in samples. In this, water is used as the mobile phase, with a cation exchange resin serving as the filler.
• Insoluble substance analysis in acid
  Water and sulphuric acid are added to the guar gum and then heated in a water bath. After a while, the water is removed and it is left to dry at 105°C. The residue remaining after drying should not exceed 7.0 percent.
• Starch analysis
  Add iodine test solution to the aqueous solution of guar gum, if a blue color appears, it means that guar gum contains impurity starch.
• Protein analysis
  We test for the presence of protein in guar gum using a nitrogen assay. Notably, the protein content of guar gum should not exceed 10.0 percent.
• Borate analysis
  The guar gum is dissolved in water and a hydrochloric acid solution is added. Use turmeric test paper for testing: if the guar gum solution appears brownish red and the color of the test paper deepens after drying, or if it turns dark green after being wetted with the ammonia test solution, it proves that there are impurity borates in the guar gum.
• Loss on drying
  The guar gum is dried at 105°C for 5 hours with a weight loss of not more than 12.0%.
• Microbiological limit analysis
  We use the flat dish method, membrane filtration method, and the most-probable-number method (MPN method) to detect the enumeration of thermophilic bacteria and fungi in guar gum grown under aerobic conditions.

Publication Data

Frequently Asked Questions

• What are the structural characteristics of guar gum?
  Guar gum is a non-ionic polysaccharide as far as molecular structure is concerned, with polymannose as the molecular backbone and D-mannopyranose units linked by β(1→4) glycosidic bonds. D-Galactopyranose, on the other hand, is attached to the polymannose backbone with an α (1→6) bond. The molar ratio of mannose to galactose units in guar gum is 2:1, i.e., every other mannose unit is connected to a galactose branch. The most important feature and advantage of the guar gum molecule are that it is very similar in structure to cellulose, and this similarity gives it a strong affinity for cellulose, called substantivity.
• What is the use of guar gum?
  • Hair care: Guar gum can be used as a conditioning agent, anti-static agent, and thickener for hair and skin, and is suitable for shampoo and conditioner.
  • Paper auxiliaries: Guar gum can be adapted to the requirements of modern factories with zero emissions, and it can maintain or improve the homogeneity of paper while improving paper retention and water filtration, which is a promising environmental protection auxiliary.

Advantages

• The guar gum analysis services we provide not only help to research the physicochemical properties of guar gum but also lay the foundation for the functional development of guar gum.
• We combine techniques from multiple disciplines to develop experimental protocols that are highly flexible and precise to ensure that guar gum analysis is completed efficiently and reliably.
• Our team of experts has the expertise and experience in pharmaceutical excipient design and analysis to provide custom guar gum analysis solutions.

CD BioGlyco has a strong research team that is familiar with the latest research advances and technologies in the field of Pharmaceutical and Biological Analysis. We have extensive experience in pharmaceutical excipient analysis and provide high-quality guar gum analysis services to our clients. Please feel free to contact us for more details if you need a high-quality pharmaceutical excipient analysis service.