With the increasing awareness of self management on personal health, consumer demands for natural productshave been growing by leaps and bounds. The radish red, as a kind of natural anthocyanins food colorant, is irreplaceable for human health.
The rapid development of natural plants extract industry created the market demand of radish red in recent years. As a branch of the nature plants extract products, radish red market with a stable market share, exhibits a rising tendency while it exists a certain fluctuation. According to Herbridge Media, the radish red exported from china was $2.08 million in 2014, up 50% from 2013, slowing growth in 2015.

l  The Total Export of Radish Red at 2013-2015 in China

 
l  The Total Export Volume of Radish Red at 2013-2015 in China

 
l  The Unit Price of Radish Red at 2013-2015 in China


According to Herbridge Media, radish red as food colorants is mainly used in food industry. Its poor taste and awful smell,however, have made it hardly can be characterized as a “delicious” color. Nevertheless, the sostenuto increasing of the food industry recent years, create the opportunity for the development of radish red. Therefore, plant extract enterprises are challenged by continuously updating extracting technique to provide qualified radish red for consumers’ ever-growing needs.
Yunnan Rainbow Biotech told Herbridge Media，As one of the biggest radish red production enterprises in China, focus on plant extracting research & development, production, sales and service. Adhering to the object ”derived from natural, createhealthy life”, we have always been committed to developing and exploring the healthy radish red into a wild range of application.
By extraction, refinement, concentration and spry dry, radish red is a red water-soluble colorant extracted from the tubers of Raphanus sativus L. (crucifer), an edible red shell & heart radish, which riches in anthocyanins.
What the anthocyanidins and anthocyanins are?
Anthocyanidins are common plant pigments. They are the sugar-free counterparts of anthocyanins based on the flavylium ion or 2-phenylchromenylium, which is a type of oxonium ion (chromenylium is referred also to as benzopyrylium). They form a large group of polymethine dye. In particular anthocyanidins are salt derivatives of the 2-phenylchromenylium cation, also known as flavylium cation. As shown in the figure below, the phenyl group at the 2-position can carry different substituents.

The counterion of the flavylium cation is mostly chloride. With this positive charge, the anthocyanidins differ from other flavonoids. Almost 25 kinds of anthocyanidins had been found in nature, their distinct structures are showed in the form below.

Selected anthocyanidins and their substitutions
Anthocyanidin	Basic structure (R4′ = −OH)	R3′	R5′	R3	R5	R6	R7
Aurantinidin		−H	−H	−OH	−OH	−OH	−OH
Capensinidin		−OCH3	−OCH3	−OH	−OCH3	−H	−OH
Cyanidin		−OH	−H	−OH	−OH	−H	−OH
Delphinidin		−OH	−OH	−OH	−OH	−H	−OH
Europinidin		−OCH3	−OH	−OH	−OCH3	−H	−OH
Hirsutidin		−OCH3	−OCH3	−OH	−OH	−H	−OCH3
Malvidin		−OCH3	−OCH3	−OH	−OH	−H	−OH
Pelargonidin		−H	−H	−OH	−OH	−H	−OH
Peonidin		−OCH3	−H	−OH	−OH	−H	−OH
Petunidin		−OH	−OCH3	−OH	−OH	−H	−OH
Pulchellidin		−OH	−OH	−OH	−OCH3	−H	−OH
Rosinidin		−OCH3	−H	−OH	−OH	−H	−OCH3

 
Anthocyanins (also anthocyans; from Greek: ἀνθός (anthos) = flower + κυανός (kyanos) = blue) are water-soluble vacuolar pigments that may appear red, purple, or blue depending on the pH. Anthocyanins occur in all tissues of higher plants, including leaves, stems, roots, flowers, and fruits. And then, plants are endued colorful sense of sight. The anthocyanins, anthocyanidins with sugar group(s), are mostly 3-glucosides of the anthocyanidins. The anthocyanins are subdivided into the sugar-free anthocyanidin aglycones and the anthocyanin glycosides. Anthocyanins are derived from anthocyanidins by adding sugars.
That is rare to find substantive anthocyanidins in nature. As of 2003, more than 400 anthocyanins had been reported while more recent literature (early 2006), puts the number at more than 550 different anthocyanins.
Anthocyanins belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway; they are odorless but flavorful, contributing to taste as a moderately astringent sensation.Most frequently occurring in nature are the glycosides of cyanidin, delphinidin, malvidin, pelargonidin, peonidin, and petunidin. Radish red belongs to the glycosides derivatives of pelargonidin (Pelargonidin-3-sophoroside，5-glucoside), which with disacyl structure. They are natural pigments be used in food and cosmetics processing industry widely.
At the end of the last century, the health care concept of free radical scavenging and anti-oxidation was advocated. Anthocyanins played an important role in health food industry owing to their strongest free radical scavenging and with exceptional anti-oxidant ability. So, how do the anthocyaninsplay a role in health care?
Anthocyanins are a natural anti-aging dietary supplements, they exhibit superb free radical scavenging and anti-oxidation activity in human body. They are known as "oral skin cosmetics" in Europe due to their providing skin from the damnification of sunshine.In addition to acting as antioxidants and fighting free radicals, anthocyanins may offer anti-inflammatory, anti-viral, and anti-cancer benefits.In herbal medicine, anthocyanin-rich substances have long been used to treat a number of conditions (including high blood pressure, colds, and urinary tract infections).Recent research suggests that anthocyanins may also help fend off major health problems, including heart disease ,cognitive decline and cancer.Anthocyanins may enhance heart health, according to a 2010 report published in Nutrition Reviews. The researchers found that consuming anthocyanin-rich strawberries and blueberries once per week was associated with a significant reduction in death from CVD and coronary artery disease.The report's authors note that anthocyanins appear to improve cholesterol levels and blood sugar metabolism, as well as fight oxidative stress.Therefore,anthocyanins bring numerous benefits on human health.
Radish red which is promoting human’s health plays an significant role by its superb free radical scavenging and anti-oxidation activity in human body. With the characteristics of natural and non-toxic,it is used in food, cosmetics and functional daily chemicals as the preferred ingredients.
Anthocyanins are considered secondary metabolites as a food additive with E number E163 (INS number 163); they are approved for use as a food additive in the EU, Australia and New Zealand.
In view of the radish red in the pH value of 3 to 4, it reflects the bright, temptation of red and the solution exhibits clear, translucent visual effects. The radish red product is suitable for food which demand short-term heat treatment or pack with transparent materials thanks to its advantageous light, heat resistance.The food being colored by radish red possess the capability which allure consumer consumingly.
The Disadvantages of Radish Red
Despite all the benefits of radish red, its chemical nature make it not a flawless product. The following are some disadvantages occurred in the application of radish red.
l  The Strong Characteristic Odor
Red radishbelong to Cruciferae Plants,which are rich in glucosinolates. Glucosinolates is the secondary metabolite of plants containning nitrogenous and sulfur. When crushing the raw material, glucosinolates will occur self-decomposition reaction or react with myrosinase within plants generating a series of hydrolysate. If the outcomes of above reactions were not removed during the extraction of radish red, the radish red powder would bear strong and characteristic odor that will effect the taste and smell of final product and lower down customers’ satisfaction.

l  Limitation of Solubleness
As radish red can be applied in various final product, the application condition is also different such as different final product will have different pH value or other additives. In certain circumstance dissolution, insoluble residue and solution turbidity etc, occurred in the application will influence the use and effect of final product, increase the cost of using it and ultimately harm to the competiveness of final product.

l  Light Resistance and Heat Resistance Remains to be Improved
Although the radish red color itself are relatively good in light resistance and heat resistance, it falls to the category of natural color in essence. When dealing with long time high temperature, the color of final product will fade obviously increasing the cost of manufacture.
For a certain degree, these disadvantages limit the application of radish red and hinder its further development in the market. Facing above bottlenecks, Yunnan Rainbow Told Herbridge Media，They take the advantage of its strong research and development team and make a break–through in the radish red extraction technique improving the quality of radish red color which offer a new opportunity to the development of radish red product.
As the one of the core products of Yunnan Rainbow, the Research and Development team have always been working on improving the quality of radish red. After years of study, we overcome disadvantages and improve the quality greatly.

l  Consumers prefer Less Odor Product
Yunnan Rainbow has been focusing on the technology of removing the characteristic odor of radish red extract in the past years. After years of hardworking, we successfully achieve mass production in workshop instead of small production in lab making us the leader and innovator on removing odor of radish red. Compared with the normal radish red, the characteristic odor decrease 80% after deodorized treatment, there is not any characteristic scent for radish red in powder form, and 95% of its scent can be removed after second treatment contributing to make the final product in the food application is almost odorless which have been confirmed and appreciated by plenty of customers around the world.
The final product is almost odorless and confirmed and appreciated by plenty of customers in the world.
 
Our goal is to obtain a completely odorless radish red extract. We have started a new program on that and progress achieved now. We believe that odorless radish red extract will be launched by Yunnan Rainbow.

l  Specially customized product for wider application
As a water soluble color, great solubility and stability are key to make full use of it. Solubility and stability for product now is good enough in normal application environment while don’t work well in some special application environment, which limit the wider application.
To solve problems like that, Yunnan Rainbow has launched the specially customized radish red to meet special requirements, such as different pH, long-time-heat and others. Radish red with better solubility and stability, more clear appearance and less soluble residuals provides customers with more convenient and valuable application, which meet our goal of supplying customer with tailor-made products and giving more satisfactory purchasingexperience.




l  Radish juice concentrate — From food Additive to Colouring foodstuffs
Radish juice concentrate is a newly lunched product in recent years. Using water as extracting agent, radish juice concentrate comes from red radish after extraction, filtration and concentration (spray dry if necessary). In contrast with radish red color, radish juice concentrate enjoy higher solubleness, stability and more nutritional content, etc. In European countries, radish juice concentrate can be directly applied to food manufacturing as food ingredient.
Yunnan Rainbow radish juice concentrate do not involve any selective refining in the whole extracting process which make it a sheer natural extract by all means. Although this is a new product to the whole world, Yunnan Rainbow have acquired well-developed producing techniques. With stable raw material supply and modernized facilities, the production and sales of our products increased year by year.
The improved radish red and new product-radish juice concentrate have been successfully applied to beverage, backing and candy industries realizing the perfect combination of health and delicious.
 
Yunnan Rainbow, located in Kunming City, with 7 subsidiary companies in Yunnan, Xinjiang, Hebei and Shandong in China. The registered capital is RMB 120 million. Yunnan Rainbow is one of the oldest companies in China doing business of natural colors, pharmaceutical and industrial ingredients.
Yunnan Rainbow has more than 10,000 hectare planting base of raw material. Our annual production capacity is 2000MT for water soluble natural colors, 3000MT for oleoresins and 1000MT for tannic acid. Now we become the largest exporting company of water soluble natural colors and one of main exporting companies of paprika and marigold oleoresin.
Yunnan Rainbow has achieved ISO9001, ISO22000, Halal and Kosher certificated. From plants cultivation to the final processing, Yunnan Rainbow comply with strict Supply Chain Control and Quality Control system, to ensure you natural, healthy products.  Yunnan Rainbow own our patents and special technologies, such as Ultrasonic Extraction, Macroporous adsorption resin, Membrane Filtration, Low Temperature Concentration, Molecular Distillation and SFE. We continuously improve processing technology to enhance the quality of products. Besides domestic market, our products have been exported to Europe Union, North and South America,East Asia, Southeast Asia and South Asia for more than 10 years.Our staff tenet is “Creation, Details, Execution, Duty”. We value contract and responsibility during business cooperation. We sincerely expect our cooperation and common development with you.