Green Tea Extract Key Points Of The Production Control
First, the pre-production equipment cleaning. Tea extracts pre-production equipment cleaning requirements are as follows: The inner wall of the device should be checked for natural color; equipment needs to be cleaned and washed with an artificial cleaning ball; pipelines laminated containers need to be soaked with a 5% lye heat for 2 hours or more, rinsed with tap water with Ph test strips, then washed again; pipes need to be cleaned and connected to high-pressure steam for 5 minutes or more, required equipment cleaning to pick beaker lowest, flow out of the residual flow liquid colorless, transparent, no impurities, no smell, can be used.
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
(1) 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.
(2) extract Cooling: extract released as soon as possible through the plate heat exchanger to cool to room temperature
(3) centrifuge tube: cooled extract by high storage tank – to high-speed centrifuge tube, liquid per minute from 800L drum washable time after shutdown to ensure separation effect, and in the separation process using a beaker sampling, testing liquid separation.
(4) low concentration: liquid filtration or membrane with a membrane concentrator concentrated liquid every three tons capacity for the cycles of concentration, if the film was concentrated at 55 degrees or less, the membrane concentration controlled at 40 degrees, and concentrated hydraulic control in po plum 15
(5) Spray Drying: out promptly fed concentrate liquid spray tank, tower temperature controlled at 80-85 degrees, the product came out in a timely manner into the cool and dry place, every spray drying about 1h, clean the dust filter bag.
Fourthly: Product packaging operations requires screening clean area
(1) to provide products in batches according to the number of detections QC tools, for 80 mesh sieve.
(2) the amount of each batch of 500kg powder into the “V”-type blender and mixed for 30 minutes, the samples sent to the review, to be certified before the product packaging.
(3) Package, 25kg / barrel, double layer film bags, vacuum packing.
(4) moisture absorption product, keep sealed, stored in a cool, dry and dark warehouses.
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