CN1989851A - Process for producing high purity food-grade tea pigment - Google Patents

Abstract

Disclosed is a process for producing food grade high purity tea saponin by using polyphenols substances mainly including catechin as the raw material, which comprises an oxidative polymerization and condensation process. The obtained product comprises effective compositions of water-soluble coloring matters including theabrown, thearubigins, and theaflavines.

Description

Process for producing high purity food-grade tea pigment

Process for producing high purity food-grade tea pigment relates to the converted products that Tea Polyphenols is a raw material, especially Tea Polyphenols is processed into the production method of the bulk drug edible tea pigment that can use for healthy food and the manufacturing of OTC medicine with scale.

Process for producing high purity food-grade tea pigment background technology situation: Tea Polyphenols is the extract of natural plants tealeaves, by national standard (QB2154) regulation, be the phenoloid that from the Aqua Folium Camelliae sinensis soak, produces complex reaction, claim tea tannin, tea tannin again with ferrous ion.Catechin is its Main Ingredients and Appearance, and structural formula adds down:

Phenol hydroxyl on catechin B ring and the C ring has oxygen delivery capacity, generates o-quinone class and xenol quinone in oxidizing process, is a kind of desirable antioxidant therefore.Its oxidation product of Tea Polyphenols is exactly a Tea Pigment, i.e. theaflavin, congo red element and umbrinaceous general name.Tea Pigment is comparatively stable to light, heat, pH value, and these materials have special physiological function, has health care and the therapeutic action useful to human body ten.Tea Pigment is described as the raw material of best health food in the world today and the manufacturing of OTC medicine, but in China research and production enterprise, all can only get juice, alkalization, concentrated, acidifying through decoction from tealeaves, add alcohol reflux, alkalize again and Tea Pigment, high-load had both increased production greatly only below 25%, consumer cost can not be brought into play special physiological function of Tea Pigment and oxidation resistance again to greatest extent.

The present invention is to provide a kind of process for producing high purity food-grade tea pigment, broken through the traditional way from tealeaves to the Tea Pigment, be from Tea Polyphenols commodity raw material, directly to prepare Tea Pigment, important indicators such as its organoleptic indicator, physical and chemical index, sanitary index all meet the requirement of food-grade health products and the pharmacy of OTC medicine, and can realize suitability for industrialized production.

Process for producing high purity food-grade tea pigment: with the commerical grade Tea Polyphenols is raw material, with the organoleptic indicator of Tea Pigment product, physical and chemical index, sanitary index etc. is important quality index, with country and industry relevant food health regulation, standard is the target level of product quality foundation, and its process route is as follows:

Adopt such scheme, can directly be condensed into Tea Pigment from Tea Polyphenols oxidation polymerization, and the high purity food-grade tea pigment product of accord with Q B/T2489-2000 standard, this products characteristics: bronzing powder, the Tea Pigment total content reaches 60-90%, be the Tea Pigment of an extreme high purity,, meet national two class Chinese medicine requirements because of in preparation process, removing caffeine.Product can be used for food color, additive, medicine and daily-use chemical industry raw material.

Process for producing high purity food-grade tea pigment is done following auspicious stating:

The production environment condition: producing high purity food-grade tea pigment will finish in the cleaning sterile workshop of GMP compatible, and the air cleaning rank reaches 100,000 grade standards.

The commodity tea polyphenol raw materials: Tea Polyphenols adopts the product of the manufacturer production of GMP authentication condition, accord with Q B2154 regulation.

The object of the present invention is to provide a kind of is raw material by the commodity Tea Polyphenols directly, utilize the hydrogen supply capacity of its Main Ingredients and Appearance catechin molecular structure phenol hydroxyl, in polyphenol oxidase+O2 oxidizing process, generate the characteristics of o-quinone class and xenol quinone, the Tea Pigment that three's (congo red element, theaflavin, theabrownin) forms is extracted in direct oxidation, and the three has the water-soluble edible Tea Pigment and the production method thereof of constant proportion of composing.

The present invention compared with prior art has following advantage: Tea Pigment weight content (more than 60%) height, and composition is complete, the tone grace; Technology is simple, and equipment investment is few; Need not to adjust the material pH value, stable lasting; Strong coloring force, All Pure Nature is nontoxic; Source commodityization, steady quality is reliable;

Packing: use the sterile bag vacuum packaging, every bag of 1kg is advisable

Product: be " high purity food-grade tea pigment "

The organoleptic indicator: dark red brown powder, do not lump; Smell (0.5% aqueous solution) tool tea fragrant, little bitter taste do not have other peculiar smell; Color stability (0.5% aqueous solution), at 280nm visible light absorption maximum place, the absorption value in the thick cuvette of 10mm $E_{1\mathrm{cm}}^{280\mathrm{nm}}\≥3.0,$ The very easily water-soluble and ethanol of this product, its water or alcoholic solution are the brown settled solution, no suspendible, muddiness and do not have the visible exogenous impurity of naked eyes.

Physical and chemical index:

Project	Index
				Tea Pigment content, % (congo red element, theaflavin, theabrownin)	≥90	60～90％	30～60％
Caffeine content, %≤	4	——	——
				Moisture, %≤	9
Total ash, %≤	7.5
				Heavy metal (in lead), mg/g≤	1.0
Arsenic, mg/kg≤	0.5

Microbiological indicator:

Project	Index
		Total plate count, cfu/g dispatches from the factory≤sells≤	20 1000
Fungi count, cfu/g dispatch from the factory≤sell≤	20 1000
		Coliform, MPF/100g≤	40
Pathogenic bacteria (duodenum 12 road pathogenic bacteria and pathogenic coccus)	Must not detect

This is the index of determining by detection methods such as GB/T 4789.2, GB/T 4789.3, GB/T 4789.4 GB/T 8312, GB/T 4789.5 GB/T 8306, GB/T 4789.10 GB/T 8304, GB/T 4789.11GB/T 8304, GB/T 4789.15 GB/T 7718, GB/T 5009.74, GB/T 5009.76 food standards and actual tests result.

Claims (3)

1, a kind of process for producing high purity food-grade tea pigment.It is characterized in that: with the commodity Tea Polyphenols is raw material, is quality index based on its organoleptic indicator, physical and chemical index, sanitary index, is the target level of product quality foundation with country and industry relevant food health regulation, standard, according to the Tea Polyphenols → oxidizing ferment+O that determines ₂The process route of → oxidation polymerization → oxidative condensation → coupling connection oxidation → concentrate, separation → crystallization, drying → packing of product warehouse-in, produce high purity food-grade tea pigment, promptly form, have proportional water-soluble high purity food-grade tea pigment of constant group and production method by theabrownin, congo red element, theaflavin three.

2, the high-purity Tea Pigment production method of food-grade according to claim 1 is characterized in that the technological process of production and production method are defined as:

Select materials: for the Tea Pigment that guarantees to be produced reaches food-grade high-purity, select tealeaves for use, produced the commodity Tea Polyphenols of accord with Q B2154 standard through the GMP working condition with non-polluted planting.

Oxidation polymerization,

Oxidative condensation.

3, process for producing high purity food-grade tea pigment according to claim 1 is characterized in that:

The organoleptic indicator who determines is: Project Index Color and luster Dark brown Tissue morphology Loose powdered, particulate, do not lump. Fragrance, flavour Have distinctive tealeaves fragrance, little bitter taste, free from extraneous odour. Impurity The visible exogenous impurity of no naked eyes.

Physical and chemical index: Project Index Tea Pigment content, % (congo red element, theaflavin, theabrownin) ≥90 60～90％ 30～60％ Caffeine content, %≤ 4 - - Moisture, %≤ 9 Total ash, %≤ 7.5 Heavy metal (in lead), mg/kg≤ 1.0 Arsenic, mg/kg≤ 0.5

Microbiological indicator Project Index Total plate count, cfu/g dispatches from the factory≤sells≤ 20 1000 Fungi count, cfu/g dispatch from the factory≤sell≤ 20 1000 Coliform, MPF/100g≤ 40 Pathogenic bacteria (duodenum 12 road pathogenic bacteria and pathogenic coccus) Must not detect