In the rabbit hindgut, fermentation occurs through a wide prevalence of Bacteroides that do not allow an extended digestibility of fibre. Digestibility of cellulose was shown to amount to 16% of the administered dose, whereas values of 14% and 18% were reported for fibre (cellulose being the main component) (review from the NRC, 1977). Later studies reported values comprised between 15 and 25% in rabbits administered different plant sources of cellulose (Gidenne and Perez, 1996; Chiou et al., 1998). In the horse, digestion of plant structural carbohydrates (including cellulose) occurs in the hindgut (colon and overall caecum). The microbiota of the caecum comprises bacteria similar to those of the rumen, but specific protozoa. The resulting digestibility is about two-third that measured in ruminants.
There are several reasons why choosing an HPMC distributor is beneficial for businesses. Firstly, distributors have access to a wide range of HPMC products from various manufacturers, allowing customers to compare and select the best option based on their specific requirements. Secondly, distributors often have expertise in the application of HPMC, which enables them to provide valuable advice and guidance to customers. Thirdly, distributors can offer volume discounts and other cost-saving measures, making HPMC more affordable for businesses. Finally, distributors handle logistics and transportation, ensuring timely delivery of products to customers.1)Excessive water content.
Additionally, these polymers are used in the production of adhesives and sealants, where they impart superior bonding strength and flexibility6. Agricultural sector:
Due to its water solubility, HPMC gel is often used in the formulation of sunscreen products to enhance their water resistance and overall performance.
In conclusion, the solubility of HPMC in ethanol is a complex phenomenon that is influenced by several factors, including the degree of substitution, molecular weight, and temperature of the solution. By carefully controlling these variables, researchers can tailor the properties of HPMC-based materials to meet the requirements of their specific applications. In practical applications, HPMC's water solubility is crucial. In the pharmaceutical industry, it is used as a binder and disintegrant in tablet formulations, where its ability to form a gel upon hydration aids in tablet integrity and dissolution. In construction, it serves as a thickener and water retention agent in mortar and plaster, with its solubility controlling the workability and setting time. In the food sector, HPMC is employed as a stabilizer and thickener. The desired viscosity level depends on the specific application, whether it's enhancing the texture of sauces, jams, or creating a smooth, creamy consistency in dairy alternatives. During this reaction, the hydroxyl groups on the cellulose molecules are partially substituted with methyl and hydroxypropyl groups, resulting in the formation of HPMC. The degree of substitution determines the physical and chemical properties of the final product, such as its viscosity, gelling ability, and solubility. The Role of HPMC in Pharmaceutical Manufacturing One of the key manufacturers is BASF SE, a global chemical company headquartered in Germany. BASF's redispersible polymer powders, such as their Vinnapas series, are renowned for their excellent re-dispersibility, improved mechanical properties, and enhanced adhesion. Their innovative production processes ensure consistent quality and tailor-made solutions to cater to diverse customer needs.