Product Introduction

Inositol, also known as Cyclohexanehexol, is widely distributed in animals and plants and acts as a growth factor for animals and microorganisms. It was first isolated from heart muscle and liver. Inositol exists in nature with several cis- and trans-isomers, with the naturally occurring isomer being cis-1,2,3,5-trans-4,6-cyclohexanehexol.

Inositol Production Process

Methods: Pressurized hydrolysis, atmospheric catalysis, chemical synthesis, etc.

Traditional Production Method:

Inositol is traditionally produced by pressurized hydrolysis, a method widely used by domestic manufacturers due to its industrial production experience. This method has been continuously improved in production. The general process involves: Phytin (hydrolysis) → Hydrolysis liquid (neutralization, filtration) → Inositol liquid (impurity removal, concentration, crystallization, centrifugation) → Crude inositol (dissolution, impurity removal, crystallization, centrifugation) → Finished product. The key steps are hydrolysis and refining.

Sodium Phytate Hydrolysis:

Using corn steep water as raw material, sodium phytate is produced through ion exchange resin adsorption, followed by pressurized hydrolysis to produce inositol. Alongside inositol production, disodium phosphate is also produced (its yield is about 12 times that of inositol), effectively recovering organic phosphorus from grains.

Process Overview: Corn steep water is processed using ion exchange resin to obtain a certain concentration of sodium phytate solution, which undergoes pressurized hydrolysis to produce inositol and disodium phosphate. After a set reaction time, the mixture is discharged, filtered, cooled, and crystallized to precipitate disodium phosphate crystals. The hydrolysis reaction liquid is refined through cation and anion exchange resins repeatedly until the ion concentrations meet the standards. The refined hydrolysis liquid is concentrated and crystallized to obtain the final inositol product. The yield of inositol is influenced by factors such as hydrolysis time, pressure, and sodium phytate concentration. An optimal hydrolysis condition is determined: hydrolysis time 7-8h, sodium phytate concentration 20%, hydrolysis pressure 1.5MPa, with an average inositol yield of 0.1544%-0.1722%.

Atmospheric Catalysis Method:

This method, recently developed in China, is a new way of producing inositol on an industrial scale. It features unique hydrolysis and refining steps. Key features include:

  1. Significantly reduced initial equipment investment, saving over 50% in equipment costs for the same scale.
  2. The use of a catalyst in phytin hydrolysis shortens the production cycle and improves raw material utilization.
  3. The refining process is improved, leading to higher product quality and yield.

Process: A specific concentration of phytin solution is mixed with a certain ratio of catalyst (a mixture of glycerol, urea, and calcium carbonate) at atmospheric pressure, heated for hydrolysis, then filtered, crystallized, and dried to produce inositol. The catalyst can be recycled.

Key Steps:

  1. During hydrolysis, the catalyst is mixed in a 1:5.5 (wt) ratio with 40% phytin solution, heated in a hydrolysis reactor to 140°C, and maintained at that temperature for 3 hours for hydrolysis to complete.
  2. Drying: The crystallized product is washed with anhydrous ethanol 2-3 times, then dried at 90°C for 50 minutes to yield the final inositol product, meeting USP standards.

Inositol’s Benefits and Effects

Reduces cholesterol, promotes hair growth, etc.

Inositol’s Applications

Used in the pharmaceutical, food, and feed industries.

Inositol Packaging and Storage

Storage Conditions: Store in a sealed, light-resistant, cool, and dry place.

Packaging: Bulk: 25kg in a cardboard drum. Samples: 1kg in an aluminum foil bag. Custom packaging is available.

Transportation: Courier or freight; domestic courier delivery within 3 days, freight within 5 days. Price typically includes domestic shipping costs.

Shelf Life: Two years.

Sources

Foods rich in inositol: animal liver, brewer’s yeast, lima beans, cow brain and heart, cantaloupe, grapefruit, raisins, malt, unrefined molasses, peanuts, cabbage, whole grains.

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