Food drying is an essential process to extend product shelf life by water removal. In complex food formulations, single ingredients might dry and rehydrate differently, based on their micro structure and their interaction with water.
The gelling ability of pectin, gellan gum and many other nature-based ingredients have been received attention in pharmaceutical & food industries. Pectin is generally applied as food additive from thickeners to binders to stabilizers.
Experiments show that pectin yield decreased significantly with temperature rising, especially after reaching the temperature of 76C. On the other hand, previous study has also reported that high temperature caused thermal degradation of pectin and this resulted in low pectin yield.
Pectin is also used in cosmetics in the manufacture of oils and creams, paints, toothpaste and shampoos, and in the manufacture of wound healing preparations and gel caps in the pharmaceutical industry.
Pectin can be found in citrus peels, in the waste from extraction of lemon and orange juices, in the dry residue from the extraction of apple juice. Therefore, pectin can be a by-product of either cider or juice production.
Pectin extraction. The extract is treated to isolate the pectin. This is most commonly done by mixing the extract with an organic solvent in which pectin is insoluble. This way the impurities will remain in the solution. The internationally approved solvents are methanol, ethanol or isopropanol. The pectin is precipitated and can be physically separated.
Pectin drying. the isolated pectin precipitate is treated with alcohol, and then dried and ground to a fine powder product.
You couldn’t find a better drying process than low temperature evaporator and vacuum belt dryer for nature ingredient.That’s why for clients using only nature based ingredients and renewable raw materials, focusing on rheology modification, thickening, suspension, stabilization and even gelation. Thanks to ongoing research and collaboration with clients, MINJIE’s portfolio of customized solutions continue to grow every year.By working closely with our customers, we’re able to define and develop solutions for their unique needs. This collaboration, coupled with years of manufacturing and application expertise, has given us a deep understanding of consumer needs and preferences. We aim to exceed those expectations in every equipment we create.
Learn more about MINJIE’s vacuum belt dryer and low temperature evaporator:
Vacuum Belt Dryer | Low Temperature Evaporator | Energy Efficiency Evaporator |
SHANGHAI MINJIE has become a leading manufacturer of Vacuum Belt Dryer & Evaporator since established in 1998.
For any enquiries, please contact: Caroline LI
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