Why Choose Us?
Rich Experience
KINTAI Biotech Inc. is one of the major manufacturers of herbal extracts and pharmaceutical intermediate in China, and has been serving global health industry customers in the past 10 years.
Wide Range of Applications
Our health natural products have been sold well in more than thirty countries, including Europe, North America, Australia, Southeast Asia, Russia, etc., and are widely used in medicine, health food, cosmetics, food drinks, animal feed and other fields.
Professional Technical Team
KINTAI is established by a high qualified team, owns the 12,000㎡ GMP workshop, 600㎡ R&D platform, 23 well-trained factory workers, 7 professional R&D and quality control people. We are experts in R&D, manufacturing and quality assurance.
Wide Product Range
KINTAI's leading products are Lappaconitine Bbr, Mangiferin, Dihydromyricetin, Dihydroquercetin, Polydatin, Rosmarinic acid, Chlorogenic acid, betulin, sanguinarine, Macleaya cordata extract, Centella asiatica extract and epimedium extract, etc.
What is Plant Extracts?
Plant extract refers to a product that is formed through an extraction and separation process where plants are used as raw materials. Generally the original components of the plants are not changed. In some cases, excipients are also used to make the powder or granular products have features like good fluidity and resistance to moisture absorption. There are also a small amount of liquid or oily plant extract products.
5 Benefits of Plant Extracts with Skincare
Soothes Our Skin
It’s helpful to know that your skin’s layer is extremely thin. This means if we use harsh skincare products, it will not benefit our skin, but instead could damage the skin’s stratum corneum, or the outermost layer of the epidermis. Enter plant-based skincare products. The plant extracts satisfy the needs of people with varying skin types. You will find the ingredients are well suited to skin nourishment, as the raw materials that make up plant-based skincare products are naturally derived, safe, and quite gentle. Most plants tend to have a calming effect on the skin. Examples of such plants are noni leaves, motherwort, and licorice. These, and other similar plants, offer a genuine soothing effect on the skin.
Safe and Gentle
As noted earlier, plants have been renowned for many centuries for their effectiveness in beauty products. For example, “Panax Ginseng Root Extract” contributes to skin glow, as well as anti-aging, and it is a powerful skin moisturizer. It is also known for decreasing wrinkles, whitening and brightening skin. The widespread desire for plant-based skincare products is connected to the significant demand among consumers for green and healthy products, especially when it comes to health and beauty goods. As opposed to the past, when the plants were added to products, now plant-based skincare products entail using plant extracts or concentrate formulated with plant extract-based additives. In contrast to chemical-based skincare products, plant-derived skincare products are comparatively mild and built on the concept of returning to nature.
Fast Absorption
Plant-based skincare products are noted for their fast absorption and a high level of permeability in the skin. In contrast to mineral-based skincare products, skincare products derived from plant extracts have an invigorating and mild texture that permeates the inner layer of your skin to achieve a deep moisturizing effect. What’s more, plant-based skincare products are infused with plant molecules that are smaller and easier to be absorbed. Because of their fast absorption rates, plant extracts in skincare products offer high penetration levels.
More Active Compounds
Plant-based skincare contains more active compounds than synthetic skincare does. For example, synthetic skincare products usually are infused with 80 percent to 90 percent neutral base ingredients, such as water, oils, and waxes. In contrast, whole plant skincare reverses this ratio and contains primarily active ingredients and few structural nutritionally neutral ingredients. Each of the plant-based oils, juices, and extracts adds to the effectiveness of the product.
Supports the Skin Microbiome
Plant-based skincare products help to strengthen the skin microbiome. Your skin microbiome is an ecosystem of bacteria on the skin’s surface. Research indicates that synthetic ingredients strip the skin of important bacteria and suppress the skin microbiome with repeated exposure. However, plant ingredients have a superior effect, supporting the feeling of balanced moisture and skin health.
Types of Plant Extracts
Olive leaf extract
Olive leaf extract is a dark and bitter liquid mixture often ingested to boost health. Made from the leaves of the olive plant, it contains an active ingredient called oleuropein with potent anti-inflammatory and antioxidant properties. Consuming this extract offers all the benefits of the Mediterranean diet in a supercharged package. While olive leaf extract can be too strong on an empty stomach, especially when ingested alone, it makes a very powerful health tonic.
Ginkgo biloba extract
Ginkgo biloba is an ancient plant with amazing health properties. The ginkgo biloba tree comes from China, and it's a staple of traditional Chinese medicine. Rich in goodness, this extract contains high levels of flavonoids, terpenoids, and other antioxidants. Ginkgo biloba extract may help to reduce inflammation, support brain function, and promote healthy blood circulation.
Ginseng extract
Ginseng is another staple of traditional Chinese medicine. This plant has been used for thousands of years, and it has potent antioxidant, anti-inflammatory, and antithrombotic effects. There are different types of ginseng on the market, with fresh ginseng harvested before 4 years, white ginseng harvested between 4 and 6 years, and red ginseng harvested after 6 or more years.
Grapefruit seed extract
Grapefruit seed extract can be used topically or taken internally, with its rich combination of antimicrobials and antioxidants helping to fight infections. You can also extract oranges, limes, and lemons, with all citrus flavonoids helping to reduce inflammation and boost nutrition. There are also lots of other citrus extracts on the market, along with related products like lemon balm extract and lemongrass extract.
Mushroom extracts
There are lots of mushroom extracts on the market, including chaga extract, tremella extract, maitake extract, and reishi extract. Depending on the type of mushrooms extracted, these products can assist with a range of ailments. From seasonal allergies and the common cold to insomnia and inflammation, mushroom extracts provide a powerful boost to help you cope with the demands of the modern world.
Application of Plant Extracts

Medical industry
Medicinal plant extracts are currently of considerable importance because of their special attributes as a large source of therapeutic phytochemicals that lead to the development of new drugs. Since phenolic and flavonoid plant extracts have antioxidant activity, it has been reported that most chemicals from plant sources such as phenols and flavonoids have a positive impact on health and cancer prevention. The antioxidant activity of phenolic and flavonoid plays a role in preventing the development of age-related diseases that are particularly caused by oxidative stress.

Cosmetics industry
Plant extracts are attracting increasing interests in the cosmetics industry. There are now growing scientific evidences that plant extracts have a broad and complex arsenal of active ingredients that not only calm or smooth skin, but also repair and protect human skin. In addition, plant extracts may contain compounds having antimicrobial or other beneficial properties that affect the formulation of cosmetics. Plant extracts can provide formulators with more choices at the technical level in cosmetics industry and meet the diverse needs of consumers.

Health food industry
Plant extracts can be used in health foods. Health foods are a specific type of food that has specific functions for the human body, but they are not intended to treat diseases and are suitable for consumption by a specific population. For example, endogenous plant antioxidants, which are extracted from tea, sesame and wild rice, as well as from other plant sources such as rice husks, can inhibit lipid peroxidation and protect the membrane from oxidative damage of membrane function.
Plant extracts have a long history of use around the world. From ancient Egypt and Mesopotamia to Africa and India, nearly every culture on Earth has used plant materials for food and medicine. The active compounds in plants have been extracted and used for almost everything, from poisoning the tips of arrows to making insecticides, foods, and medicines. Even today, between 50,000 and 80,000 flowering plants are used for many of these purposes.
More than anywhere else, plant extracts are associated with China. Traditional Chinese medicine is based on extracts, with a wide variety of materials prepared, concentrated, and ingested to promote physical and mental health. Chinese medicine includes raw materials with single active ingredients and formula granules with various plant combinations. These plant extracts are generally made through simple water extraction, often followed by separation and drying.
Plants have long been used in the production of stimulant beverages, including tea, coffee, and cola. They have also been used to produce alcohol, create cosmetics, and make food taste better and last for longer. In modern times, plant extracts are widely used in the production of commercial food and cosmetic products, and they're also sold as dedicated health products. With natural health gaining popularity all the time, plant extracts continue to be used for nutrition and complementary medicine.

The strength of herbal extracts are expressed as a ratio of dry plant material to final extract quantity. In pharmacy, this is otherwise known as the drug extract ratio (DER). Extract ratios are expressed in the following format:X:Y
X = weight of dry plant material
Y = volume or weight of final extract (depending on whether the extract is liquid, or dry/solid)
Essentially, this means that the activity of the dry plant material (X) is found in the equivalent quantity of the extract (Y). For example, if the plant extract ratio of aloe vera is 200:1, this means that every 1mg of aloe vera plant extract, is equivalent in strength to 200mg of aloe vera dry plant. That is a lot of health packed into just 1mg of extract!
Plant Extracts vs. Essential Oils
Essential oils are made from extracted plant materials, but they're made in a different way from other plant-based extracts. Essential oils are extracted through distillation, and traditional plant extracts are soaked in a liquid solvent to isolate the desired ingredients.
Essential oils normally have a more prominent aroma than extracts, which is due both to the method of extraction and the selected ingredients. The ingredients used in essential oils are more likely to have a strong smell, with various roots, flowers, and leaves chosen specifically for their aromatic oils.
In contrast, plant extracts are produced through a straining process. The plant material is ground, and a solvent is added for an extended period. This can be something as simple as water — the universal solvent — or it could be alcohol or another liquid. After the material has been exposed to the solvent, the final concentrated plant substance is strained and collected.
Making tea at home is a simple example of creating a plant extract. Most techniques are much more complex and time-consuming, however, with different methods and equipment needed to remove the essential compounds. Plant extracts are generally not as concentrated as essential oils, so they can be used in higher quantities and tend to be gentler on the stomach and skin.
Manufacturing Process of Plant Extract
Freeze-Thaw Assisted Extraction
The freeze-thaw method is regarded as a sustainable technique for the decomposition of plant tissue and cell membrane. The freeze-thaw pretreatment is able to increase the degree of cell membrane permeabilization greatly, thus improving the efficiency of the following extraction. This technology has been proved to have potential at improving the yield.
Pressurized Hot Water Extraction (PHWE)
Water extraction is one of the cleanest and green technologies, although traditional water extraction often lacks efficiency and selectivity. PHWE is an extraction technology that uses super-heated water with a temperature above its atmospheric boiling point (100°c/273k, 0.1MPa), but below its supercritical threshold (374°c/647k, 22.1MPa), as the extraction solvent. PHWE has been mainly used to extract relatively polar extracts.
Intensification Methods Assisted by Ultrasonication and Microwaves
Ultrasound and microwave-assisted extraction offer several advantages such as efficient cell wall disruption. Microwave-assisted extraction (MAE) involves the utilization of microwave radiation to heat the sample-solvent mixture, making the solvent more accessible in the sample and accelerating the partitioning process. Ultrasound assisted extraction (UAE) uses high frequency (20 kHz) pulses to generate local hotspots at macroscopic scale with high shear stress and temperature by producing cavitational bubbles, which burst at the surface of the plant sample matrix, induces the destruction of plant cell walls and facilitates the mass transfer of active compounds into the solution.
Supercritical Fluid Extraction (SFE)
Supercritical fluid extraction (SFE) has become one of the most promising green extraction techniques to date. SFE utilizes supercritical fluids—which exhibit properties between liquid and gas above their critical points—as extraction solvents. So far, CO2, which has a low critical point (73 atm and 31°C) and allows for a relatively mild operation condition, is the most commonly used supercritical fluid. Besides the advantages of being clean, safe and cost effective, the most outstanding advantage of SFE over traditional extraction procedures is that the efforts needed for the post-extraction clean-up steps are dramatically reduced. Today, SFE on a large scale is mainly used for decaffeination and the production of hop extracts.
Top 5 Factors That Can Influence Plant Extract Extraction Yield
Long before the introduction of genetically modified crops, growers had been selecting and hybridizing for different qualities like drought tolerance, resistance to pests, and proficic production. Rose oil production is a good example. While there are over 400 species in the family Rosaceae, just five species are targeted for essential oil extraction, and a single species, Rosaceae damascena, has been widely cultivated, bred, and hybridized for its valuable oil.
Obviously, different crops are suited to widely varying climates, geological settings, and soil types. Crops cultivated in ideal conditions may grow faster and produce substantially more biomass. But does that necessarily point to a better return on the agricultural investment? Maybe not. In many cases, the desirable phytochemicals plants produce are part of their own response to environmental stressors — phytochemicals that are sought out for their beneficial effects, such as ɑ-pinen, D-limonene, eucalyptol, and camphor.
Studies have long been done to determine the ideal stage for crop harvest. In a study comparing four harvest dates at 20-day intervals on lemon balm, one of the four dates was a clear winner. Not only was quantity affected, but so was essential oil quality. Plants should be harvested at the optimal time based on the convergence of many factors: plant size, whether the plant is an annual or perennial, optimal quality of the primary part associated with the target phytochemical, season and weather, and availability of labor and/or equipment.
The choices involved in cutting, drying, chopping, storing, and transporting biomass can all have an impact on extract yields and essential oil quality. Plants that need to be properly cured and dried before extraction need to be handled with care to prevent spoilage and/or mold growth. In fact, hemp grown for CBD needs to be properly cured to enhance and maximize cannabinoid production, for optimal potency and quality. Storage conditions also need to protect biomass from pests, dirt, bird droppings, etc., which can expose the final product to adulterants and affect the value.
Just as there are countless plants cultivated for their valuable essential oils, there are numerous ways of extracting these important phytocompounds.
Our Certifications
Now Kintai Biotech Inc has obtained GMP, ISO9001:2016, ISO22000:2018, Kosher, HACCP, HALAL, Food Production License, Business License, and other qualifications certificates.






Our Factory
KINTAI Biotech Inc. is one of the major manufacturers of herbal extracts and pharmaceutical intermediate in China, and has been serving global health industry customers in the past 10 years. KINTAI offers more than just manufacturing services, we offer our customers complete professional solutions, including product concept, selling points, testing, formulation, packaging, customs clearance, regulatory compliance, etc. KINTAI is established by a high qualified team, owns the 12,000㎡ GMP workshop, 600㎡ R&D platform, 23 well-trained factory workers, 7 professional R&D and quality control people. We are experts in R&D, manufacturing and quality assurance.

Ultimate FAQ Guide to Plant Extracts
Xi'an Kintai Biotech Inc is one of the leading plant extracts manufacturers and suppliers in China. We warmly welcome you to buy or wholesale plant extracts for sale here from our factory. Our products are with high quality and competitive price.
Loquat Leaf Extract Powder, Hawthorn Berry Extract Powder, Alfalfa Extract Powder


















