bio surfactant

Rhamnolipids are bio surfactant naturally occurring glycolipids produced commercially by the Pseudomonas aeruginosa species of bacteria. P. aeruginosa produces both mono-rhamnolipids and di-rhamnolipids. Many strains of P. aeruginosa can produce rhamnolipids both aerobically and in some cases by anaerobic fermentation. Rhamnolipids function as a natural surfactant, emulsifier, fungicide, and antibiotic.

In pure form, rhamnolipids are a white powder when desiccated. Generally rhamnolipids are supplied and used in an aqueous solution. The solution may range from clear to milky white or tan in color, depending on concentration and purification. When used as a surfactant, only low concentrations are necessary.

As a natural “green”, non-carcinogenic product, rhamnolipids are just now beginning to be used to replace petroleum-based chemicals in cosmetics, soaps, shampoos, detergents, pharmaceuticals, agricultural sprays, etc. as those currently used petrochemicals are being phased out or banned.

bio surfactant

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Welan gum price

Welan gum price:
1.Product name: Welan gum
2.CAS NO.：96949-22-3
3.Purity: 99% min
Storage information: Store in Cool and dry .place, keep away from strong light, high temperature
Usage: chemical reseach
Transportation：by air express delivery(DHL,FedEx,EMS ect.) or sea shipping (FOB,CIF,CFR,CNF ect.)
Sample：sample can be supplied if you inquiry
Price: we will give you the best price !

Welan gum price

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Welan gum price

Welan gum price
Welan Gum
QC:Haccp, Kosher, Hala,ISO
Viscosity:Min.1500 mPa.s
Grade: Food, Industrial, Cosmetic, Oil  drilling Grade
Product Description

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan; Kelco Crete.
Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3.
Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners.

Welan gum price

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Rhamnolipid biosurfactant

Rhamnolipid bio surfactant is a liquid contact biofungicide used in agricultural, horticultural and turf
Settings to prevent and control plant pathogens such as downy mildews, Pythium and Phytophthora.
Studies have shown that rhamnolipid biosurfactant is not generally toxic, but is corrosive to eyes.
When applied according to label directions by appropriately protected handlers, no adverse effects on
Humans or the environment are expected from the use of this biofungicide.

Description:
Rhamnolipid biosurfactant is a mixture of two structurally related rhamnolipid molecules.
The active ingredient is prepared commercially by controlled aerobic fermentation of a
Strain of the soil-borne bacterium Pseudomonas aeruginosa. Strict quality controls assure that no bacteria are present in the manufactured product. The rhamnolipid molecules are simple glycolipids comprised of a fatty acid tail with either one or two rhamnose rings at the carboxyl end of the fatty acid. Rhamnose is a sugar which the Food and Drug Administration has approved as a food additive. Fatty acids, a major source of energy in the body, are ubiquitous in animals and plants. Exposure to rhamnolipids and other biosurfactants is widespread. Rhamnolipid biosurfactant works by disrupting cell membranes; The targeted fungal pest zoospores are especially vulnerable because they lack the protective cell wall present in the fungal pest's other life stages.

Rhamnolipid biosurfactant

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welan gum test method

welan gum test method:
0.66% by weight solution:mix 3.33grams SM gum into 500mls DI water for 5 minutes in a Waring blender at 4000rpms.Measure pH and viscosity at 21ºC using a Fann Viscometer equipped with a #1 torsion spring.Then condition for 20minutes at 85ºC in atmospheric cement consistometer. Take 85ºC fann readings in a preheated fann cup.

Application:
It is widely used in oil drilling,other industrial use .
Package:
25kgs net weight Composite paper bag, inner PE bag.

welan gum test method

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welan gum manufacturers

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development. We are professional welan gum manufacturers.
1). oil drilling grade(petroleum grade) xanthan gum.
2). special grade
2. property:
1)high viscosity under low rotation
2) high viscosity under low concentration
3 fine moisture retention
4)peculiar stability under high salinity
5)high temperature resistance
Application:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of
viscosity at elevated temperatures. It is used in various industries where high molecular weight
biopolymers are useful. Welan Gums have various oilfield applications, concrete, dry-mixed mortar,petroleum industry,foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners

welan gum manufacturers

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welan gum suppliers

product introduction
Our company are welan gum suppliers.The main component of the efficient anti-segregation agent is a macromolecule microbial polymer. It shows good stability, excellent resistance to segregation, water retention and thicken effect and unique rheological properties. It can effectively prevent the mortar and concrete bleeding and segregation, even more could overcome the affect on strength introduced by traditional anti-segregation agents or thickeners. So it is particularly suitable for high-end building products such as grout, self-leveling mortar and self-compacting concrete, etc. Compared with traditional thickeners and anti-segregation agents, DR-1also resolve the problems of measure and dispersion, stick knives, air bubbles and other issues, while DR2 overcomes many difficulties of traditional anti-segregation agents such as the strength problems and competitive adsorption with other additives.
SZB-660 has the characteristics of Thixotropic, water retention, and SZB-360 has the characteristics of Thickening,Thixotropic, they are mixed used for spray machine mortar
Properties
DR-1 and DR-2 can by used independently,
while SZB-660:SZB:360=10:3 for spray machine mortar

welan gum suppliers

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bio surfactant

At present, rhamnolipid as bio surfactant mostly from Pseudomonas fermentation derived. In order to obtain high yield of rhamnolipid, the appropriate carbon source is the primary consideration, vegetable oil, glycerol, ethanol, glucose, n-alkanes and other organic matter can be used as a carbon source of fermentation.
Consumption of kitchen waste oil for the carbon source fermentation of rhamnolip, not only for the kitchen waste oil safety and health disposal opened up a new way, but also reduces the cost of production of rhamnolip, to achieve the purpose of waste utilization.
Our team can provide superior products and premium services with excellent design and excellent production equipment to meet customers'needs.

bio surfactant

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welan gum manufacturers in china

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development. We are welan gum manufacturers in china.

Welan gum is a long chain naturally occurring polymer with excellent thermally resistance capability which is used to increase yields of water-based drilling mud. Welan gum can be stable up to 3000F (1500C) in water-based drilling, workover and completion fluids systems due to unique features for Lower Shear Rate Viscosity ( LSRV ) of drilling fluids and divalent ion tolerance. 

Welan gum has a slightly higher acid solubility than xanthan gum polymer. Bichain is one of reliable welan gum suppliers and manufacturers for oilfield drilling, workover fluids and oil well cementing. High quality welan gum like Biozan polymer.

welan gum manufacturers in china

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Anti-high temperature biopolymers description

Anti-high temperature biopolymers description
The product has the general properties of biopolymer  such as thickening, suspension, emulsifying, acid-base stability, but also have good high temperature performance, temperature tolerance up to 150 ºC, it can be used deep well drilling fluid, etc. in the high temperature environment.

Packaging & Delivery
Packing :Paper bag, net 20kg/bag
Delivery Lead Time :2 weeks
Minimum Order :200kg
Supply Ability :1000mt-2000mt/year

Anti-high temperature biopolymers

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Bio surfactants are widely used as natural additives

Bio surfactants are widely used as natural additives in the food processing industry.
RL can significantly reduce the interfacial tension and surface tension of the material.
The hydrophobic end is combined with the organic molecule, and the hydrophilic end is combined with the intermittent water of the garbage to make the water form a stable liquid film around the garbage particles, providing a good surface environment for the microorganism. And then under the action of microorganisms. Through high-temperature fermentation of garbage in the pathogen harmless, organic humification and stabilization, and thus deal with a variety of organic solid waste.
Our team can provide superior products and premium services with excellent design and excellent production equipment to meet customers'needs

Bio surfactants

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Rhamnolipid is an anionic bio surfactant

Rhamnolipid is an anionic bio surfactant produced by microorganisms. It is not only soluble in methanol, chloroform and ether, but also exhibits good dissolution characteristics in alkalinhttp://www.china-ebio.come aqueous solution.
It combines good chemical and biological characteristics. With oil and water amphiphilicity, can reduce the water surface tension, can also be used as a wetting agent, emulsifier and foaming agent. While it has excellent surface activity, and non-toxic, biodegradable.
At present it is more widely used in the oil industry, green agriculture and ecological environment, in addition to the food industry, cosmetics, medical also has a greater potential for application.

bio surfactant

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China welan gum manufacturers

Ebio biotechnology is China welan gum manufacturers.Our products include diutan gum, welan gum, anti-high temperature biopolymers and so on.
welan gum Characteristics
1. Has the characteristics of pseudoplastic flow (shear thinning effect),and a good ability of suspensionin the stationary state.
2. It is relatively stable in the range of PH2-12 and has good salt tolerance.
3. It has the thermal reversibility for the stability of temperature, the influence of temperature on the Welan gum is relatively small. Under the condition of 121 °C terilization for 15 minutes, its viscosity will not decrease. The viscosity of 0.4 xanthan gum solution has been zero when the temperature is 135°C , but the vidcosity of welan gum solution was just close to zero under the same conditions when the temperature is up to 163°C. Under the normal conditions, the viscosity of welan gum solution will decrease with the the temperature increasing and with the temperature lowering, it can completely restore.
4. welan gum can form a gel under the conditions of NaOH existence and heating, but the gel strength is very weak.
5. It has better compatibility with other gum.
6. can be dissolved in cold water, it presents regular and stable structure in aqueous solution,and forms the high viscosity solution.

China welan gum manufacturers

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Welan gum Description

Welan gum Description:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures. Welan Gum exhibits superior temperature stability over 200° F in fresh water and low pH fluids. Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft³. Welan Gum is used in various industries where high molecular weight biopolymers are useful.

Application:
WELAN GUM biopolyer is a high efficiency, pseudoplastic viscosifier and suspension agent used in water based drilling, workover and completion fluids. Welan gum is also used in hydraulic fracturing fluids and cementing grouts, foundary coating, pigment suspensions, cement or concrete viscosifier, tire sealant and paint thickeners.

Packing:
WELAN GUM is packed in 20 kg paper sack, 25 or 40 sacks per pallet.
Customized packaging is available.

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Welan Gum is an anionic polysaccharide

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan; Kelco Crete.
Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3.
Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners.

Welan Gum

Storage information: Store in Cool and dry .place, keep away from strong light, high temperature
Usage: chemical reseach
Transportation：by air express delivery(DHL,FedEx,EMS ect.) or sea shipping (FOB,CIF,CFR,CNF ect.)
Sample：sample can be supplied if you inquiry
Price: we will give you the best price !
welcome http://www.china-ebio.com

Drilling mud additive for Welan gum

Drilling Mud Additive for welan gum polyacrylamide has very good performance in high temperature and salt resistance for oil drilling application.

Advantage
Keep very high viscosity in saline water
Bear with high temperature upto 150 celsius degree

Typical Properties
Appearance: White powder
Hydrolysis degree: 25%
UL Viscosity, CPS: 4.0-7.0
Molecular weight: 20-25MM
Solid content: 90min.

Drilling mud additive for Welan gum

Application & Storage
Recommended solution concentrations: 0.5%
Recommended storage periods: 2 years from receipt of goods in a cool and dry place
Stock solution: 24hours

Viscosity modifying Admixture

Welan gum is a good quality viscosity modifying admixture.The use of viscosity modifying admixtures (VMA) has proved to be very effective in stabilizing the rheological properties and consistency of self-compacting concrete (SCC). SCC is known for its excellent deformability, high resistance to segregation and use, without applying vibration, in congested reinforced concrete structures characterized by difficult casting conditions. Most of the commercial VMAs currently available in the market are costly and increase the price of such a concrete. Identification or production of new low-cost VMA is then essential. This paper presents the performance of four new polysaccharide-based VMAs in enhancing the rheological and consistency properties of cement paste.
The study of the rheological properties and consistency of cement paste to screen the dosage and type of new VMA to be used in SCC is a promising approach. Investigation was carried out on cement pastes with combinations of various dosages of new VMAs and of a superplasticizer (SP) to study the influence on rheology, consistency and washout mass loss. A commercial VMA designated in this paper as “COM” was tested for comparison. The study on new VMAs is encouraging and confirms that pastes with satisfactory rheological and consistency properties comparable with or even better than commercial VMA can be developed. The combined use of proper dosages of VMA and SP is shown to clearly contribute to securing high-performance cement pastes that is highly fluid yet cohesive enough to reduce water dilution and enhance water retention. Attempt has also been made to correlate rheological properties (yield stress) to consistency (slump) of pastes.

Viscosity modifying Admixture

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We are bio surfactant manufacturers

We are bio surfactant manufacturers,if you need this,please send us email.
The increased environmental awareness of consumers has led to a higher demand for the green/eco-friendly products. Prudent customers in mature markets demand green products made from renewable sources that are biodegradable and have less harmful effects on the environment as compared to products from petroleum origin. Surfactants constitute an important group of chemicals. They are used for manufacturing household and commercial cleaners, personal care and food products. Surfactants can be derived from both petrochemical feedstock and renewable resources.

bio surfactant manufacturers

In addition to increasing demand for products made from renewable resources, there are specific types of cosmetic ingredients being viewed critically by consumers. One example are certain types of ethoxylates (PEG-derivatives) for which industry is seeking replacement products. While there are existing surfactants which are partially (e. g. fatty acohol ethoxylates, fatty alcohol ether sulfates) or even fully (e. g. alkyl polyglucosides) derived from renewable resources, none of these fulfill all requirements in terms of cost, performance, renewable content, and environmental compatibility (e. g. biodegradability, ecotoxicity). SyntheZyme’s biosurfactant products close this gap by offering raw material flexibility in combination with novel, unique structures resulting in increased performance value in applications.

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Drilling mud additive for Welan gum

Drilling mud additive for Welan gum
Welan Gum is a biopolymer employed in food industry as thickener. This paper evaluates its performance as mud thickener and filtrate loss additive. Tests revealed that welan gum, even at low concentrations, effectively boosted mud viscosity and yield point. Tests were also conducted on carboxymethyl cellulose (CMC), a commonly used mud thickener. Compared with CMC, welan gum is more effective as mud thickener, but welan gum has no effect on mud filtrate loss. welan gum mud was also tested at elevated temperature. The viscosity of welan gum mud was stable under short-term and long-term heating. Sodium chloride and calcium chloride were added into welan gum mud. Test results showed welan gum mud was resilient to sodium and calcium contamination. welan gum has good potential as mud thickener under high temperature and high salinity conditions.
Drilling mud plays a critical role in the success of oil and gas drilling operations. It cools and lubricates drill bit, controls well pressure, transports and suspends cuttings. Mud must have a relatively high viscosity to effectively suspend cuttings. Therefore, mud thickeners are often added into mud to boost mud viscosity. The most widely used mud thickeners are carboxy methyl cellulose (CMC) and hydroxy ethyl cellulose (HEC).

Drilling mud additive for Welan gum

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Characteristics of Welan Gum

Characteristics of Welan Gum

1. can be dissolved in cold water, it presents regular and stable structure in aqueous solution,and forms the high viscosity solution.

2. has the characteristics of pseudoplastic flow (shear thinning effect),and a good ability of suspension in the stationary state.

3. It is relatively stable in the range of PH2-12 and has good salt tolerance.

4. welan gum can form a gel under the conditions of NaOH existence and heating, but the gel strength is very weak.

5. It has the thermal reversibility for the stability of temperature, the influence of temperature on the Welan gum is relatively small. Under the condition of 121 ℃ terilization for 15 minutes, its viscosity will not decrease. The viscosity of 0.4 xanthan gum solution has been zero when the temperature is 135℃ , but the vidcosity of welan gum solution was just close to zero under the same conditions when the temperature is up to 163℃. Under the normal conditions, the viscosity of welan gum solution will decrease with the the temperature increasing and with the temperature lowering, it can completely restore.

6. It has better compatibility with other gum.

Welan Gum

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