We herbinspection make research and find out there are 5 totally different ways how factories produce it with different sources. Here is the review of our research.
What is soybean isoflavones?
Isoflavones is widely used as food ingredients that will bring huge health beneficial in cardiovascular diseases and other conditions. The high content of isoflavones in soybean made this plant to be the most common natural sources among human foods.
6 main types of Isoflavones extracted from soybeans
There are totally 12 types of Isoflavones that can be extracted from soybeans, but people only pay attention to the 6 of them in the commercial business.
|Categories||Names of Isoflavones||Bio-activity||Chemical source available or not|
During the business with Chinese suppliers, we found there are many different prices of Soybean isoflavones in the market. Take 40% of Isoflavones (HPLC method) for example, the price is range from usd38/kg to usd85/kg, so what’s the truth behind it?
Why huge price gap? 5 ways of how factory produce soybean isoflavones
Let’s make a review of different methods of how manufacturers make the soybean isoflavones with different cost.
Isoflavones extracted from natural soybean meal.
Soybean meal is produced from the residue left after oil extraction. It is rich in the content of Genistin, Genistein, Daidzin and Daidzein. All of these four isoflavones are with bio-activities, so this price of soybean isoflavones is the highest.
This should be the main supply in the market since the good activities.
Isoflavones extracted from natural soybean germ.
Soybean germ is a good source to produce the soybean protein as well as for isoflavones. The isoflavones in germ are at a high level, among which Glycitin and Glycitein take 40% of the total.
The isoflavones in Germ is almost 10 times richer than in soybean meals, so many suppliers like to take the germ to produce the isoflavones which will result in lower price and lower bio-activities.
The price of this kind of soybean isoflavones is much lower.
The mixtures of the above 1 and 2
The price and bio-activities is in the middle level of the isoflavones extracted from meal and germ.
The mixture of chemical synthesized isoflavones
Daidzein and Genistein can be synthesized by chemical method, and the price of this two are much cheaper when compared with the natural sourced ingredients.
So there are some suppliers will take the chemical sourced Daidzein and Genistein to substitute the natural ones, which will help to decrease the cost largely.
But the isoflavones with this method will show no bio-activities.
The mixtures of other plant sourced isoflavones
Isoflavones can be extracted from many other plants, so some suppliers will make a mixture of different sourced natural isoflavones together with soybean sourced one, especially when higher assay of soybean isoflavones were requested.
Adding with different natural sourced isoflavones is a good way to help producing a higher content of isoflavones when the isoflavones in soybean are not able to be accumulated and extracted to such a high level rate. By this method, the cost can be saved, but the bio-activity of isoflavones will not be ideal enough to match the isoflavones level accordingly.
How to distinguish the different sourced soybean isoflavones?
There are some basic rules to help with.
- Pay attention to the taste and odor of the extracts. The natural soybean isoflavones have a characteristic odor and bitter taste.
- A detailed COA which showing the ratios of different isoflavones will be necessary.
- Perform with on-site audits at supplier’s plant.
- Good supplier chain management and quality assurance system
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Written by Amy Yang
Amy specializes in botanical industry.
With 8+ year’s experience of global sourcing and supply chain management, she got knowledge of herbal extracts,natural ingredients, inspection skills, GMP and suppliers management.
Amy is constantly sharing her knowledge by posts.
She always expects to receive feedback from you.
Why we write?
With 10 years international trading business in natural ingredients and herbal extracts,we know well of 80% suppliers in China market.We know the hidden truth of botanical industry.
We want to purify the industry, make it clean and natural.So, we decide to be the TRUTH TELLER. It’s time to help you to get the right products.