Changsha Zhongren Biotechnology Co., Ltd
Tel: +86-731-85995739
Mob: +8613627316358
Email: ninayi@zhrbio.cn
Add: Building B1, Jinke Yida Science and Technology City, Changsha 410129, China
Quality services
Our team is committed to delivering high-quality services to our clients. We use the latest technologies and tools to ensure that our services exceed your expectations.
Quality
We offer high quality services and products that are relatable and resonate with your business needs.
Experience and expertise
Changsha Zhongren Biotechnology Co., Ltd.,has been committed to the research, development, manufacturing and sales of natural products for a long time. The company has a strong project development team and a standard quality monitoring system.
Certifications and quality standards
Choose a factory that adheres to industry standards and certifications to ensure product safety and quality.
First, the pre-production equipment cleaning
Secondly, the raw material requirements
Selection of high quality leaf species, summer tea material, inclusions of EGCG> 4.5%, less than 10% moisture control, no mildew, no impurities, holds a special tea fragrance raw material thickness from coarse pieces, in pieces, broken tea, Xiumei proportionally match. According to GMP requirements before storage of raw materials for review, send inclusions to QC testing, inspection and storage of the review after passing into use; test items are water, water extracts, raw sensory evaluation, inclusion detection of EGCG, caf and so on.
Thirdly, the extraction plant requirements
Extraction posts: Thick film materials accounted for 70% by weight, thin slices and Xiumei, for 30%; commissioning after the first vote rough sheet feeding flakes or eyebrows; commissioning amount as three tons of extracting tank controlled at 150kg-200kg / cans, extraction temperature 80 degrees; extracted twice: the first time put 8 times the amount of water, the second also eight times the amount; after the first time put the finished water 0.5h, the second time after 20 discharged water, the water came alive again in the second, to ensure the extraction rate; extraction process on the circulating pump is about 15 minutes, do not open the agitation.
Fourthly: Product packaging operations requires screening clean area

In essence...
Green tea extract is made from the leaves of the camellia sinensis tea botanical.
Of all the types of tea that are derived from the same tea plant, green tea is known to be the least processed and thus retain more healthful properties.
History of green tea extract usage
Green tea extract, which comes in several forms, including powder, is made from the leaves of the camellia sinensis tea botanical. While several other types of tea are also derived from the same plant – black, white, and oolong, to name a few – green tea is known to be the least processed among the group and to thus retain more of its valuable, healthful properties.
Rich in polyphenols, catechins, and caffeine, green tea extract has been used in eastern traditional medicine.

How to choose perfect Green Tea Extract – 8 ways to recognize high-quality green tea extract
Evaluate its colour
One of the easiest ways to assess green tea extract quality is the evaluation of its colour. The tea bushes, the leaves of which green tea extract is produced from, undergo the process of shading with traditional bamboo mats. Thanks to such practice green tea extract is characterized by an incredibly deep green colour. The shade of green slightly varies depending on the harvest. The leaves that were harvested first result in powder of an intense, distinctive bright green colour. The leaves that are being harvested subsequently (during successively second and third harvests) are still of an intense green colour, although of a slightly fainter shade. And what if green tea extract powder is of a yellowish or brownish shade? You definitely should stay away from it. This means that green tea extract is old or was incorrectly stored, e.g. in the sun.
Test its structure
The rule is simple: the more finely ground the green tea extract powder, the higher its quality. A high-grade green tea extract is characterized by finely ground flecks. The diameter of a single fleck is estimated to be equal to the diameter of a pollen, which makes it so easy to blend with water. You should avoid powder that is visibly coarse-grained. In order to assess the thickness of the specks, you can resort to a certain simple test. It's enough to dip your finger in green tea extract powder and then ‘draw' a straight line on a piece of paper. The more finely ground the green tea extract, the longer the obtained line.
Smell it
Green tea extract scent is yet another indicator of its quality. It should be refreshing, grassy, of a subtle vegetable, sea aroma. If you can detect any notes of musty stench within the green tea extract powder, you totally should refrain from purchasing it.
Take a look at its packaging
Green tea extract shouldn't have any contact with sunlight or humidity. Therefore, if the packaging has any transparent elements, is made of a thin material or is not entirely sealed – the producer wasn't trying hard enough for sure. In such container green tea extract will quickly become mouldy and lose its properties.
Taste it
High-quality green tea extract is characterized by refreshing, sweetish, vegetable flavour of noticeable umami notes and subtle bitter aftertaste typical for green teas. The earlier the harvest, the sweeter and more delicate the taste of green tea extract powder. Green tea extract derived from later harvests will have stronger bitter undertones.
Look into its origin
When purchasing green tea extract, it is worth checking what is the country of its origin. The place most well known for production of green tea extract of the highest quality is definitely Japan – its time-honoured tradition and local, family-owned fields are the guaranty for green tea extract powder's highest standard.
Compare the prices
It's a somewhat trivial indicator – but oh, how accurate! Production of green tea extract of a high quality – especially the one derived from entirely ecological tea cultivation – requires a tremendous labour and time input. The price of green tea extract of a higher standard is higher than the price of green tea powder from a discount chain but it's a guaranty for a great taste and its quality.
Look for a certificate
An organic certificate is only granted for rigorously tested products, which fulfil all of the criteria for ecological cultivation. Green tea extract powder awarded with such certificate is beneficial both for mother nature and its consumers, as it was produced without the help of pesticides or artificial fertilizers.
The main products of our company include Huperzia Serrata Extract (Huperzine A 1% - 98%), Astragalus Extract (Astragaloside 0.3% - 98%), Apple Extract (Philorizin,Phloritin 70-98%), Paeonia root Extract (8-98% paeoniflorin), honeysuckle Extract (chlorogenic acid 5-98%), Eucommia leaf
Extract (chlorogenic acid 5-98%), Turmeric Extract (curcumin 50-98%), Polygonum Cuspidatum Extract (resveratrol 50-98%),Vine Tea Extract (50-98% dihydromyricetin) and other conventional products.
Changsha Zhongren Biotechnology Co., Ltd.,has been committed to the research, development, manufacturing and sales of natural products for a long time. The company has a strong project development team and a standard quality monitoring system. While providing plant extraction and processing business, we are also pleased to cooperate with domestic and global partners to promote personal health and a better life through firm initiatives and development concepts.
