CN109220672B - Preparation method of burdock leaf enzyme - Google Patents

Preparation method of burdock leaf enzyme Download PDF

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CN109220672B
CN109220672B CN201811163727.6A CN201811163727A CN109220672B CN 109220672 B CN109220672 B CN 109220672B CN 201811163727 A CN201811163727 A CN 201811163727A CN 109220672 B CN109220672 B CN 109220672B
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burdock
leaf
leaves
water
film
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CN109220672A (en
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姚风腾
胡传银
张艳明
邓磊
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Xuzhou Kanghui Century Foods Co ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for
    • A01G22/25Root crops, e.g. potatoes, yams, beet or wasabi
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/27Removal of unwanted matter, e.g. deodorisation or detoxification by chemical treatment, by adsorption or by absorption
    • A23L5/276Treatment with inorganic compounds
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00Fertilisers characterised by their form
    • C05G5/20Liquid fertilisers
    • C05G5/23Solutions
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
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  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Botany (AREA)
  • Mycology (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a preparation method of burdock leaf enzyme, which is characterized in that fresh burdock leaves are used as raw materials and are prepared by the processes of burdock leaf planting, harvesting, sterilizing, fermenting and the like.

Description

Preparation method of burdock leaf enzyme
Technical Field
The invention relates to a burdock enzyme, and belongs to the technical field of fruit and vegetable processing.
Background
The burdock is a vegetable mainly eaten by fleshy roots, and the burdock roots contain rich nutrient components such as inulin, polysaccharide, saponin, flavonoid glycoside, dietary fiber, polyphenols such as caffeic acid, chlorogenic acid, isochlorogenic acid and the like, aldehyde substances and the like. The burdock leaves are rich in nutrition, some nutritional ingredients exceed burdock roots, people try to develop a utilization method of the burdock leaves for a long time, for example, chlorogenic acid can be extracted, and some burdock seasonings can also be made, but the burdock leaves are not good in taste and quite serious in bitter taste, and are not popular with people for direct use.
Disclosure of Invention
Aiming at the existing technical problems, the invention provides a preparation method of burdock leaf enzyme, which comprises the following steps:
the preparation method of the burdock leaf enzyme is characterized by comprising the following steps of taking fresh burdock leaves as raw materials:
firstly, ditching in the east-west direction of a ditching and sowing machine by a burdock machine according to the row spacing of 50 cm from 12 months 5 days to next year 1 month 25 days, wherein the ditch width is 25-30 cm, the ditch depth is 30-35 cm, the planting density is 5-6 cm, and the harvested commodity is not burdock roots but burdock leaves, so that the depth, the row spacing and the density of ditching in the sowing period are different from those of the traditional method, and the yield of the burdock leaves is improved;
and a second step of mulching film covering: a colorless mulching film is selected, the width of the mulching film is 90 cm, the burdock soil ridge is covered with the film, then a black-white double-color film is used, the width of the film is 100 cm, the middle part of the film is 20 cm and is a colorless transparent film, the white parts of the black opaque films on the two sides are covered on the burdock soil ridge, in order to prevent the burdock seedlings from growing out and contacting the film, a gap of 4-5 cm is propped up by a bamboo skin on the burdock soil ridge, the black mulching film is covered on the two sides of the soil ridge, the two bottom edges are compacted by soil, 12 months are not the coldest season in one year, but the coldest season in one year is ensured after seedling emergence, and the burdock is not resistant to freezing;
and in the third step, in 3 months, along with the rise of the air temperature, the burdock grows to be full of seedlings and 3 true leaves, the mulching film is uncovered in the morning of a sunny day, and the once-spraying foliar fertilizer is sprayed, wherein the once-spraying foliar fertilizer is characterized in that: water, urea and washing powder according to the weight ratio: urea: washing powder =100: 0.5 to 0.80: adding 100 kg of water, dissolving 0.09-0.10 of washing powder, and preparing the fertilizer, wherein 120 kg of the fertilizer aqueous solution is sprayed per mu, in the morning of sunny days, spraying a foliar fertilizer is favorable for promoting the growth of leaves, a small amount of washing powder is added into the foliar fertilizer, the aphids can be effectively prevented and controlled, the burdock seedlings grow up gradually in the last 4 th day after the positive and negative pages are uniformly sprayed, and the growth of the leaf surfaces is promoted by spraying the foliar fertilizer, so that the growth of burdock roots is controlled;
fourthly, beginning to harvest burdock leaves in the last ten days of 6 months, stopping fertilizing water 20 days before harvesting, and enabling the burdock to be incapable of using pesticides in the whole growth period;
and fifthly, leaf harvesting requirement: selecting a leaf with a width of more than 21 cm and a length of more than 30 cm, wherein each harvested leaf does not exceed 4 leaves, and the leaves are transported to a factory for processing within 4 hours after leaving the parent plant;
and sixthly, immediately putting the burdock leaves into saline water for cleaning and soaking after the burdock leaves are transported to a factory, wherein the putting of the burdock leaves into the saline water for cleaning and soaking is characterized in that: water, salt and sodium bicarbonate according to the weight ratio: salt: sodium bicarbonate =100: 2.1-2.5: 0.62-0.72, soaking time is 10-15 minutes;
and seventhly, sterilizing the soaked burdock leaves in a sterilizing solution, wherein the sterilizing of the burdock leaves in the sterilizing solution is characterized in that: the sterilizing liquid is prepared from 38% of chlorine dioxide, sodium bicarbonate and potassium dihydrogen phosphate according to the weight ratio = water: chlorine dioxide: sodium bicarbonate: monopotassium phosphate =100:0.0042-0.0046: 0.32-0.40: 0.16-0.18, the sterilization time is 12-14 minutes;
and eighthly, crushing the sterilized burdock leaves by using a stainless steel crusher, adding a certain amount of sterilized burdock slices during crushing, and crushing the burdock leaves together, wherein the crushing of the burdock leaves is characterized in that: water, burdock leaves and burdock slices are mixed according to the weight ratio: burdock leaf: mixing burdock slices =100: 45-45: 10-15 in proportion and crushing;
the ninth step; filtering the crushed burdock leaf juice by using a vacuum filter after crushing, and sieving by using a filter sieve of 200 meshes;
adding white granulated sugar in the tenth step, wherein the proportion of the added white granulated sugar is as follows: filtering liquid: white granulated sugar =80-85: 15-20, stirring uniformly, and standing for 4-5 hours at the temperature of 30-32 ℃;
the tenth step is preparation: sugared burdock leaf juice: the treated apple juice is mixed according to the weight ratio of = 98: 2, uniformly stirring, adding into a fermentation tank, uniformly stirring, and sealing the fermentation tank for fermentation;
and a twelfth step of fermentation: controlling the fermentation temperature to be 28-30 ℃, sealing, increasing the pressure in a fermentation tank by gas generated by fermentation in the fermentation tank, naturally discharging the gas through water seal, preventing the gas outside the fermentation tank from entering the fermentation tank, achieving the purpose of automatic exhaust, and continuously fermenting for 195 days to obtain the finished product of the burdock leaf enzyme;
the effect is as follows: the product is rich in chlorogenic acid, and has effects of clearing heat, removing fire, eliminating heat toxin in blood, regulating hormone secretion, promoting digestion, resisting bacteria, relieving inflammation, activating cell, removing toxic substance, and enhancing immunity.
Detailed Description
The present invention will be further illustrated by the following examples
Example 1: the technical scheme of the invention is as follows 1. a preparation method of burdock enzyme, which is characterized in that fresh burdock is used as raw material and is prepared by the following steps:
the preparation method of the burdock leaf enzyme is characterized by comprising the following steps of taking fresh burdock leaves as raw materials:
firstly, ditching in the east-west direction of a burdock ditching and sowing machine according to the row spacing of 50 cm in 12 months and 5 days, wherein the width of a ditch is 25-30 cm, the depth of the ditch is 30 cm, and the planting density is 5-6 cm;
and a second step of mulching film covering: a colorless mulching film is selected, the width of the mulching film is 90 cm, the burdock soil ridge is covered with the film, then a black-white double-color film is used, the width of the film is 100 cm, the middle part of the film is 20 cm and is a colorless transparent film, the white parts of the black opaque films on the two sides are covered on the burdock soil ridge, in order to prevent the burdock seedlings from growing out and contacting the film, a gap of 4-5 cm is propped up by a bamboo skin on the burdock soil ridge, the black mulching film is covered on the two sides of the soil ridge, the two bottom edges are compacted by soil, 12 months are not the coldest season in one year, but the coldest season in one year is ensured after seedling emergence, and the burdock is not resistant to freezing;
and in the third step, in 3 months, along with the rise of the air temperature, the burdock grows to be full of seedlings and 3 true leaves, the mulching film is uncovered in the morning of a sunny day, and the once-spraying foliar fertilizer is sprayed, wherein the once-spraying foliar fertilizer is characterized in that: water, urea and washing powder according to the weight ratio: urea: washing powder =100: 0.5: 0.09, spraying 120 kilograms of aqueous solution for fertilization per mu, uniformly spraying the burdock seedlings on the front and back pages in the morning of a sunny day, wherein the burdock seedlings grow gradually in the last 4 months, promoting the growth of the leaf surfaces by spraying leaf fertilizer, and controlling the growth of burdock roots;
fourthly, beginning to harvest the burdock leaves in the last ten days of the month 6, and stopping fertilizing water 20 days before harvesting;
and fifthly, leaf harvesting requirement: selecting a leaf with a width of more than 21 cm and a length of more than 30 cm, wherein each harvested leaf does not exceed 4 leaves, and the leaves are transported to a factory for processing within 4 hours after leaving the parent plant;
and sixthly, immediately putting the burdock leaves into saline water for cleaning and soaking after the burdock leaves are transported to a factory, wherein the putting of the burdock leaves into the saline water for cleaning and soaking is characterized in that: water, salt and sodium bicarbonate according to the weight ratio: salt: sodium bicarbonate =100:2.1:0.62, and the soaking time is 10 to 15 minutes;
and seventhly, sterilizing the soaked burdock leaves in a sterilizing solution, wherein the sterilizing of the burdock leaves in the sterilizing solution is characterized in that: the sterilizing liquid is prepared from 38% of chlorine dioxide, sodium bicarbonate and potassium dihydrogen phosphate according to the weight ratio = water: chlorine dioxide: sodium bicarbonate: monopotassium phosphate =100:0.0042: 0.32: 0.16, the sterilization time is 12 to 14 minutes;
and eighthly, crushing the sterilized burdock leaves by using a stainless steel crusher, adding a certain amount of sterilized burdock slices during crushing, and crushing the burdock leaves together, wherein the crushing of the burdock leaves is characterized in that: water, burdock leaves and burdock slices are mixed according to the weight ratio: burdock leaf: mixing burdock slices =100:45:10 in proportion and crushing;
the ninth step; filtering the crushed burdock leaf juice by using a vacuum filter after crushing, and sieving by using a filter sieve of 200 meshes;
adding white granulated sugar in the tenth step, wherein the proportion of the added white granulated sugar is as follows: filtering liquid: white granulated sugar =80:15, uniformly stirring, and standing for 4-5 hours at the temperature of 30-32 ℃;
the tenth step is preparation: sugared burdock leaf juice: the treated apple juice is mixed according to the weight ratio of = 98: 2, uniformly stirring, adding into a fermentation tank, uniformly stirring, and sealing the fermentation tank for fermentation;
and a twelfth step of fermentation: controlling the fermentation temperature to be 28-30 ℃, sealing, increasing the pressure in a fermentation tank by gas generated by fermentation in the fermentation tank, naturally discharging the gas through water seal, preventing the gas outside the fermentation tank from entering the fermentation tank, achieving the purpose of automatic exhaust, and continuously fermenting for 195 days to obtain the finished product of the burdock leaf enzyme;
the product is rich in chlorogenic acid, and has effects of clearing heat, removing fire, eliminating heat toxin in blood, regulating hormone secretion, promoting digestion, resisting bacteria, relieving inflammation, activating cell, removing toxic substance, and enhancing immunity.
Example 2
The preparation method of the burdock leaf enzyme is characterized by comprising the following steps of taking fresh burdock leaves as raw materials:
firstly, ditching in the east-west direction of a burdock ditching and sowing machine at the row spacing of 50 cm in 12 months and 25 days, wherein the width of a ditch is 30 cm, the depth of the ditch is 35 cm, and the planting density is 5-6 cm;
and a second step of mulching film covering: a colorless mulching film is selected, the width of the mulching film is 90 cm, the burdock soil ridge is covered with the film, then a black-white double-color film is used, the width of the film is 100 cm, the middle part of the film is 20 cm and is a colorless transparent film, the white parts of the black opaque films on the two sides are covered on the burdock soil ridge, in order to prevent the burdock seedlings from growing out and contacting the film, a gap of 4-5 cm is propped up by a bamboo skin on the burdock soil ridge, the black mulching film is covered on the two sides of the soil ridge, the two bottom edges are compacted by soil, 12 months are not the coldest season in one year, but the coldest season in one year is ensured after seedling emergence, and the burdock is not resistant to freezing;
and in the third step, in 3 months, along with the rise of the air temperature, the burdock grows to be full of seedlings and 3 true leaves, the mulching film is uncovered in the morning of a sunny day, and the once-spraying foliar fertilizer is sprayed, wherein the once-spraying foliar fertilizer is characterized in that: water, urea and washing powder according to the weight ratio: urea: washing powder =100: 0.7: 0.09, spraying 120 kilograms of aqueous solution for fertilization per mu, uniformly spraying the burdock seedlings on the front and back pages in the morning of a sunny day, wherein the burdock seedlings grow gradually in the last 4 months, promoting the growth of the leaf surfaces by spraying leaf fertilizer, and controlling the growth of burdock roots;
fourthly, beginning to harvest the burdock leaves in the last ten days of the month 6, and stopping fertilizing water 20 days before harvesting;
and fifthly, leaf harvesting requirement: selecting a leaf with a width of more than 21 cm and a length of more than 30 cm, wherein each harvested leaf does not exceed 4 leaves, and the leaves are transported to a factory for processing within 4 hours after leaving the parent plant;
and sixthly, immediately putting the burdock leaves into saline water for cleaning and soaking after the burdock leaves are transported to a factory, wherein the putting of the burdock leaves into the saline water for cleaning and soaking is characterized in that: water, salt and sodium bicarbonate according to the weight ratio: salt: sodium bicarbonate =100:2.3:0.67, and the soaking time is 10 to 15 minutes;
and seventhly, sterilizing the soaked burdock leaves in a sterilizing solution, wherein the sterilizing of the burdock leaves in the sterilizing solution is characterized in that: the sterilizing liquid is prepared from 38% of chlorine dioxide, sodium bicarbonate and potassium dihydrogen phosphate according to the weight ratio = water: chlorine dioxide: sodium bicarbonate: monopotassium phosphate =100:0.0045: 0.36: 0.17, the sterilization time is 12 to 14 minutes;
and eighthly, crushing the sterilized burdock leaves by using a stainless steel crusher, adding a certain amount of sterilized burdock slices during crushing, and crushing the burdock leaves together, wherein the crushing of the burdock leaves is characterized in that: water, burdock leaves and burdock slices are mixed according to the weight ratio: burdock leaf: mixing burdock slices =100: 45-45: 10-15 in proportion and crushing;
the ninth step; filtering the crushed burdock leaf juice by using a vacuum filter after crushing, and sieving by using a filter sieve of 200 meshes;
adding white granulated sugar in the tenth step, wherein the proportion of the added white granulated sugar is as follows: filtering liquid: white granulated sugar =85:15, uniformly stirring, and standing for 4-5 hours at the temperature of 30-32 ℃;
the tenth step is preparation: sugared burdock leaf juice: the treated apple juice is mixed according to the weight ratio of = 98: 2, uniformly stirring, adding into a fermentation tank, uniformly stirring, and sealing the fermentation tank for fermentation;
and a twelfth step of fermentation: controlling the fermentation temperature to be 28-30 ℃, sealing, increasing the pressure in a fermentation tank by gas generated by fermentation in the fermentation tank, naturally discharging the gas through water seal, preventing the gas outside the fermentation tank from entering the fermentation tank, achieving the purpose of automatic exhaust, and continuously fermenting for 195 days to obtain the finished product of the burdock leaf enzyme;
the product is rich in chlorogenic acid, and has effects of clearing heat, removing fire, eliminating heat toxin in blood, regulating hormone secretion, promoting digestion, resisting bacteria, relieving inflammation, activating cell, removing toxic substance, and enhancing immunity. The effect is as follows: transparent, has faint scent taste and red wine feeling. In addition, the product has the functions of promoting digestion and absorption, resisting bacteria and inflammation, activating cells, detoxifying, enhancing immunity, improving self-healing force balance osmotic pressure and adjusting pH value of common ferment, has the effects of relaxing bowels, promoting urination, moistening lung, reducing phlegm and stopping cough, removing freckles and lowering blood pressure, resisting aging and radiation, effectively preventing stroke and the like, and is used for treating symptoms such as sore throat, wind-heat type common cold, measles and rubella, cerebral hemorrhage, beriberi and the like;
the product is rich in chlorogenic acid, and has effects of clearing heat, removing fire, eliminating heat toxin in blood, regulating hormone secretion, promoting digestion, resisting bacteria, relieving inflammation, activating cell, removing toxic substance, and enhancing immunity.
Example 3 the technical solution of the present invention is as follows:
the preparation method of the burdock leaf enzyme is characterized by comprising the following steps of taking fresh burdock leaves as raw materials:
firstly, 1 month and 25 days are selected, and furrows are dug in the east-west direction by a burdock ditching machine according to the row spacing of 50 cm, the furrow width is 30 cm, the furrow depth is 30-35 cm, and the planting density is 5-6 cm;
and a second step of mulching film covering: a colorless mulching film is selected, the width of the mulching film is 90 cm, the burdock soil ridge is covered with the film, then a black-white double-color film is used, the width of the film is 100 cm, the middle part of the film is 20 cm and is a colorless transparent film, the white parts of the black opaque films on the two sides are covered on the burdock soil ridge, in order to prevent the burdock seedlings from growing out and contacting the film, a gap of 4-5 cm is propped up by a bamboo skin on the burdock soil ridge, the black mulching film is covered on the two sides of the soil ridge, the two bottom edges are compacted by soil, 12 months are not the coldest season in one year, but the coldest season in one year is ensured after seedling emergence, and the burdock is not resistant to freezing;
and in the third step, in 3 months, along with the rise of the air temperature, the burdock grows to be full of seedlings and 3 true leaves, the mulching film is uncovered in the morning of a sunny day, and the once-spraying foliar fertilizer is sprayed, wherein the once-spraying foliar fertilizer is characterized in that: water, urea and washing powder according to the weight ratio: urea: washing powder =100: 0.80: 0.10, spraying 120 kilograms of aqueous solution for fertilization per mu, uniformly spraying burdock seedlings on front and back pages in the morning of a sunny day, wherein the burdock seedlings grow gradually in the last 4 months, promoting the growth of the leaf surfaces by spraying foliar fertilizer, and controlling the growth of burdock roots;
fourthly, beginning to harvest the burdock leaves in the last ten days of the month 6, and stopping fertilizing water 20 days before harvesting;
and fifthly, leaf harvesting requirement: selecting a leaf with a width of more than 21 cm and a length of more than 30 cm, wherein each harvested leaf does not exceed 4 leaves, and the leaves are transported to a factory for processing within 4 hours after leaving the parent plant;
and sixthly, immediately putting the burdock leaves into saline water for cleaning and soaking after the burdock leaves are transported to a factory, wherein the putting of the burdock leaves into the saline water for cleaning and soaking is characterized in that: water, salt and sodium bicarbonate according to the weight ratio: salt: sodium bicarbonate =100:2.5:0.72, the soaking time is 10 to 15 minutes;
and seventhly, sterilizing the soaked burdock leaves in a sterilizing solution, wherein the sterilizing of the burdock leaves in the sterilizing solution is characterized in that: the sterilizing liquid is prepared from 38% of chlorine dioxide, sodium bicarbonate and potassium dihydrogen phosphate according to the weight ratio = water: chlorine dioxide: sodium bicarbonate: monopotassium phosphate =100:0.0046: 0.40: 0.18, the sterilization time is 12 to 14 minutes;
and eighthly, crushing the sterilized burdock leaves by using a stainless steel crusher, adding a certain amount of sterilized burdock slices during crushing, and crushing the burdock leaves together, wherein the crushing of the burdock leaves is characterized in that: water, burdock leaves and burdock slices are mixed according to the weight ratio: burdock leaf: mixing burdock slices =100: 45-45: 10-15 in proportion and crushing;
the ninth step; filtering the crushed burdock leaf juice by using a vacuum filter after crushing, and sieving by using a filter sieve of 200 meshes;
adding white granulated sugar in the tenth step, wherein the proportion of the added white granulated sugar is as follows: filtering liquid: white granulated sugar =85:20, stirring uniformly, and standing for 4-5 hours at the temperature of 30-32 ℃;
the tenth step is preparation: sugared burdock leaf juice: the treated apple juice is mixed according to the weight ratio of = 98: 2, uniformly stirring, adding into a fermentation tank, uniformly stirring, and sealing the fermentation tank for fermentation;
and a twelfth step of fermentation: controlling the fermentation temperature to be 28-30 ℃, sealing, increasing the pressure in a fermentation tank by gas generated by fermentation in the fermentation tank, naturally discharging the gas through water seal, preventing the gas outside the fermentation tank from entering the fermentation tank, achieving the purpose of automatic exhaust, and continuously fermenting for 195 days to obtain the finished product of the burdock leaf enzyme;
the product is rich in chlorogenic acid, and has effects of clearing heat, removing fire, eliminating heat toxin in blood, regulating hormone secretion, promoting digestion, resisting bacteria, relieving inflammation, activating cell, removing toxic substance, and enhancing immunity.

Claims (5)

1. The preparation method of the burdock leaf enzyme is characterized by comprising the following steps of taking fresh burdock leaves as raw materials:
(1) selecting 12 months and 5 days to the next year and 1 month and 25 days, ditching in the east-west direction of a burdock ditching and sowing machine according to the row spacing of 50 cm, wherein the ditch width is 25-30 cm, the ditch depth is 30-35 cm, and the planting density is 5-6 cm;
(2) covering with a mulching film: a colorless mulching film is selected, the width of the mulching film is 90 cm, the burdock soil ridge is covered, then a black-white double-color film is used, the width of the film is 100 cm, the middle part of the film is 20 cm and is a colorless transparent film, white parts of black opaque films at two sides are covered on the burdock soil ridge, in order to prevent the burdock seedlings from growing out, the blades of the burdock seedlings touch the film, gaps of 4-5 cm are propped up on the burdock soil ridge by bamboo splits, the black mulching film covers two sides of the soil ridge, and the two bottom edges are compacted by soil;
(3) after 3 months, the burdock grows out of the same seedlings and 3 true leaves along with the rise of the air temperature, the mulching film is uncovered in the morning of sunny days, the foliar fertilizer is sprayed for one time, the burdock seedlings grow gradually in the last ten days of 4 months, the foliar fertilizer is sprayed to promote the growth of the leaf surfaces, and the growth of the burdock roots is controlled;
(4) beginning to harvest burdock leaves in the last ten days of 6 months, and stopping applying fertilizer water 20 days before harvesting;
(5) leaf harvesting requirements: selecting the leaf surface with the width of more than 21 cm and the length of more than 30 cm, wherein the leaf collecting amount of each plant is not more than 4, and the leaves leave the parent plant and are transported to a factory for processing within 4 hours;
(6) the burdock leaves are immediately put into salt water for cleaning and soaking after being transported to a factory;
(7) sterilizing the soaked burdock leaves in a sterilizing solution;
(8) crushing the sterilized burdock leaves by using a stainless steel crusher, and adding a certain amount of sterilized burdock slices for crushing;
(9) filtering the crushed burdock leaf juice by using a vacuum filter after crushing, and sieving by using a filter sieve of 200 meshes;
(10) adding white granulated sugar, wherein the proportion of the added white granulated sugar is as follows: filtering liquid: white granulated sugar =80-85: 15-20, stirring uniformly, and standing for 4-5 hours at the temperature of 30-32 ℃;
(11) preparation: adding white granulated sugar into the burdock leaf juice: the treated apple juice is mixed according to the weight ratio of = 98: 2, uniformly stirring, adding into a fermentation tank, uniformly stirring, and sealing the fermentation tank for fermentation;
(12) fermentation: controlling the fermentation temperature to be 30-33 ℃, sealing, increasing the pressure in the fermentation tank when gas is generated by fermentation in the fermentation tank, naturally discharging the gas through water seal, and preventing the gas outside the fermentation tank from entering the fermentation tank to achieve the purpose of automatic exhaust, and continuously fermenting for 195 days to obtain the finished product of the burdock leaf enzyme.
2. The method for preparing burdock leaf ferment according to claim 1, which is characterized in that: and (3) spraying the once-sprayed foliar fertilizer, wherein the water, the urea and the washing powder are mixed according to the weight ratio: urea: washing powder =100: 0.5 to 0.80: 0.09 to 0.10, and spraying 120 kilograms of aqueous solution for fertilization per mu, wherein the front and back leaf surfaces are uniformly sprayed in the morning of sunny days.
3. The method for preparing burdock leaf ferment according to claim 1, which is characterized in that: putting the mixture into saline water for cleaning and soaking, wherein the water, the salt and the sodium bicarbonate are mixed according to the weight ratio: salt: sodium bicarbonate =100: 2.1-2.5: 0.62-0.72, and the soaking time is 10-15 minutes.
4. The method for preparing burdock leaf ferment according to claim 1, wherein the method comprises the following steps: and (7) sterilizing the burdock leaves in a sterilizing solution, wherein the sterilizing solution is prepared from 38% of chlorine dioxide, sodium bicarbonate and potassium dihydrogen phosphate according to the weight ratio = water: chlorine dioxide: sodium bicarbonate: monopotassium phosphate =100:0.0042 to 0.0046:0.32 to 0.40: 0.16 to 0.18, and the sterilization time is 12 to 14 minutes.
5. The method for preparing burdock leaf ferment according to claim 1, which is characterized in that: in the step (8), during the burdock leaf crushing, the water, the burdock leaves and the burdock slices are mixed according to the weight ratio: burdock leaf: and (3) mixing and crushing the burdock slices =100:45: 10-15 in proportion.
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