CN114292965A - Preparation method of ecological brown sugar - Google Patents

Preparation method of ecological brown sugar Download PDF

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Publication number
CN114292965A
CN114292965A CN202111632301.2A CN202111632301A CN114292965A CN 114292965 A CN114292965 A CN 114292965A CN 202111632301 A CN202111632301 A CN 202111632301A CN 114292965 A CN114292965 A CN 114292965A
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China
Prior art keywords
sugar
juice
sugarcane
brown sugar
massecuite
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Inventor
黄庆才
李玉德
郭凯
刘克华
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Panzhihua Panxi Vocational College
Miyi Huasenty Co ltd
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Panzhihua Panxi Vocational College
Miyi Huasenty Co ltd
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Priority to CN202111632301.2A priority Critical patent/CN114292965A/en
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Abstract

The invention relates to a preparation method of ecological brown sugar, which comprises the steps of squeezing sugarcane by a juicing device to obtain sugarcane juice; sieving the sugarcane juice obtained in the step S010 by a sieve of 80-200 meshes to obtain sieved raw juice and sieved residues; adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.0-6.5, standing for 1-2 hours under the protection of carbon dioxide gas, and filtering to remove residues; under the protection of nitrogen or carbon dioxide, heating the screened raw juice of S030 to 90-95 ℃, removing formed floating condensate, and filtering to obtain sugar juice clear liquid; boiling sugar in the sugar juice clear liquid obtained in the step (S040) at 120-125 ℃ under normal pressure to obtain massecuite with the concentration of 93-96 degrees Bx, and continuously stirring in the boiling process to quickly evaporate water in the sugarcane juice; and (4) placing the massecuite obtained in the step (S050) in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and sand lines appear.

Description

Preparation method of ecological brown sugar
Technical Field
The invention relates to a preparation method of brown sugar, and particularly relates to a preparation method of ecological brown sugar.
Background
The brown sugar as the honey has unique flavor, retains various essential amino acids, reducing sugar, polyphenol substances and other ingredients in the sugarcane juice, simultaneously contains flavonoid antioxidant factors and trace elements such as calcium, iron, zinc and the like, and the nutritional ingredients are essential basic substances for synthesizing protein, metabolism and participating in life activities of human bodies, have high health-care effect, have beautiful mouthfeel and mellow flavor, and have very good effect on promoting health. At present, the old method brown sugar is prepared by a lime method generally, and foreign substances and impurities are removed by adding lime into sugarcane juice. Then boil out through continuous boiling pot, the brown sugar purity that adopts traditional mode to prepare is relatively poor, and the taste is relatively poor, and granular sensation is heavier, and the while colour and luster is inhomogeneous, and the phenomenon such as color and luster is dark black adopts traditional boiling off technology simultaneously, and the nutrient substance loss is more in the brown sugar.
Disclosure of Invention
The invention aims to provide an ecological brown sugar preparation method aiming at the defects of the prior art, which can continuously and stably prepare brown sugar with uniform color, high purity and good taste, and can also reserve the nutritional ingredients in sugarcane juice.
The purpose of the invention is realized as follows: a preparation method of ecological brown sugar comprises the following steps:
s010, pressing the sugarcane through a juice pressing device to obtain sugarcane juice;
s020, sieving the sugarcane juice obtained in the S010 by a sieve of 80-200 meshes to obtain sieved raw juice and sieved residues;
s030, adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.0-6.5, standing for 1-2 hours under the protection of carbon dioxide gas, and screening to remove residues;
s040, under the protection of nitrogen or carbon dioxide, heating the screened raw juice in S030 to 90-95 ℃, removing formed floating condensate, and filtering to obtain sugar juice clear liquid;
s050, under the protection of nitrogen or carbon dioxide, boiling sugar in the sugar juice clear liquid obtained in the step S040 at 120-125 ℃ under normal pressure to obtain massecuite with the concentration of 93-96 degrees Bx, and continuously stirring in the boiling process to quickly evaporate water in the sugarcane juice; and S060, preparing the massecuite obtained in the step S050 into solid brown sugar.
Step S060 includes:
s061, placing the massecuite obtained in the step S050 in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and a sand line appears;
s062, pouring the massecuite which is subjected to sanding in the S061 into a mold, placing the poured mold at normal temperature for cooling, and removing the cooled brown sugar from the mold.
The gas mixed in the S061 is nitrogen or carbon dioxide.
Heating to 90-98 ℃ in S040 by adopting a steam or heat-conducting oil heating mode; and S050, heating to 120-125 ℃ by adopting a steam or heat conduction oil heating mode, and boiling sugar.
Before the step S050, concentrating the sugar juice clear liquid obtained in the step S040 to 25-35 DEG Bx, cooling, keeping the temperature of the sugar juice clear liquid at 45-62 ℃, adding sodium alginate with the mass fraction of 0.2-0.4% into the sugar juice clear liquid, stirring the sugar juice clear liquid, standing for 2-3 hours, and using the sugar juice clear liquid without precipitates in the step S050 for sugar boiling.
Sodium alginate powder is dispersed in purified water to form a paste, which is then added to the sugar juice clear solution.
S061, pouring the massecuite into a sanding cylinder of a sanding device, standing for 2-5 minutes, starting stirring to stimulate crystallization, wherein the cooling speed is less than 2 ℃/min during sanding, the time is not more than 30 minutes, and the rotating speed of a sanding machine is controlled at 15-20 rpm.
And (S050) occasionally cleaning colloid aggregates formed in the production process during evaporation and concentration.
And S010, removing the head and the tail of the sugarcane to be juiced, and cleaning the sugarcane after removing white lipid wax on the sugarcane.
And in the step S030, adding lime milk into the screened raw juice obtained in the step S020, and standing for 1-2 hours under the protection of carbon dioxide gas.
The method has the advantages that the whole preparation process at least comprises twice flocculation, the prepared brown sugar is pure, free of sediment, pure in taste and high in sweetness, and meanwhile, the lime method is adopted for carrying out the first flocculation, so that the brown sugar is simple and clean, and the brown sugar prepared from the concentrated cane juice is high in polyphenol antioxidant content. Meanwhile, the preparation method causes gas protection, can reduce the oxidation of nutrient substances in the preparation process, can ensure that the brown sugar has golden color and can keep the nutrient components of the brown sugar as much as possible. Lime milk is introduced for flocculation in the early stage, the lime milk enters calcium ions and lime milk particles in sugar juice, and has a finer granular feeling, so that the taste is reduced, and the calcium ions are easy to react into precipitates, the sediment also influences the taste of the brown sugar, is easy to scale in brown sugar preparation equipment, is natural and safe in sodium alginate, can be extracted and produced, a network gel structure is formed by the reaction of sodium alginate, calcium ions, magnesium ions and the like, can remove partial metal ions in the sugar juice, certainly because of the introduction of lime milk, the calcium ions have higher content than other metal ions, the calcium ions and sodium alginate have stronger chelation to generate calcium alginate sediment, not only can produce and remove the calcium ions, but also can be used as a flocculating agent, further flocculate the impurities in the sugar juice, and further remove various impurities including lime milk, so that the sugar juice is purer.
The present invention will be further described with reference to the following specific examples.
Detailed Description
The following describes in detail preferred embodiments of the present invention.
Examples 1,
A preparation method of ecological brown sugar comprises the following steps:
s010, pressing the sugarcane through a juice pressing device to obtain sugarcane juice; in the step S010, the heads and the tails of the sugarcanes to be juiced are removed, white grease wax on the sugarcanes is removed and then cleaned, so that the pollution of impurities to the sugarcane juice can be reduced, the white grease wax is insoluble in water and removed in advance, the process loads of flocculation, precipitation, filtration and the like can be reduced, and the sugarcane juice is relatively pure.
And S020, sieving the sugarcane juice obtained in the S010 by a sieve of 80-200 meshes to obtain sieved raw juice and sieved residues, and filtering by polyester fabric.
S030, adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.0-6.5, neutralizing the acidity of the sugarcane juice, standing for 1-2 hours under the protection of carbon dioxide gas, and screening to remove residues; in the step, the juice can be kept stand for 1-2 hours under the protection of carbon dioxide gas, flocculation can be accelerated, further oxidation of the screened juice is avoided, and the effect of adsorbing and removing colloids and pigments in the sugar juice is achieved.
And S040, under the protection of nitrogen or carbon dioxide, heating the screened raw juice in the S030 to 90-95 ℃, heating by adopting a steam or heat conducting oil heating mode, conveniently controlling the temperature, simultaneously preventing scorching and local scorching, removing floating condensate while filtering to obtain sugar juice clear liquid.
S060, preparing the massecuite obtained from the S050 into solid brown sugar, wherein the S060 step comprises the following steps:
s061, under the protection of nitrogen or carbon dioxide, boiling sugar juice clear liquid obtained in the step S040 at 120-125 ℃ under normal pressure, heating the sugar juice clear liquid in a steam or heat-conducting oil heating mode to facilitate temperature control, simultaneously preventing scorching and preventing local scorching to obtain massecuite with the concentration of 93-96 degrees Bx, continuously stirring the sugar juice clear liquid in the boiling process to quickly evaporate water in the sugar cane juice, and naturally cleaning colloid aggregates formed in the production process from time to time during evaporation and concentration in the step S061 to enable brown sugar to be purer;
s062, placing the massecuite obtained in the step S050 in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and sand lines appear; the mixed gas in the S062 is nitrogen or carbon dioxide, the massecuite is prevented from being oxidized into dark brown or blackened by mixing the nitrogen or the carbon dioxide, and meanwhile, the gas is introduced to stimulate crystallization so as to accelerate the sanding process. During sanding, the massecuite can be poured into a sanding cylinder of a sanding device, standing is carried out for 2-5 minutes, stirring is started to stimulate crystallization, the cooling speed during sanding is less than 2 ℃/min, the time is not more than 30 minutes, and the rotating speed of the sanding machine is controlled at 15-20 rpm.
And S070, pouring the massecuite subjected to sanding in the S061 into a mold, cooling the poured mold at normal temperature, and removing the cooled brown sugar from the mold.
The embodiment further comprises the following steps: before the step S050, concentrating the sugar juice clear liquid obtained in the step S040 to 25-degree Bx, cooling, keeping the temperature of the sugar juice clear liquid at 45-62 ℃, adding sodium alginate with the mass fraction of 0.2-0.4% into the sugar juice clear liquid, dispersing sodium alginate powder into purified water to form paste, and then adding the paste into the sugar juice clear liquid, so that the sodium alginate powder can be conveniently and rapidly dispersed into the sugar juice, the agglomeration is avoided, and the sodium alginate can be added for multiple times, and is added and stirred each time. And (4) stirring the sugar juice clear liquid, standing for 2-3 hours, and using the sugar juice clear liquid without the precipitate for sugar boiling in the step S050.
Examples 2,
A preparation method of ecological brown sugar comprises the following steps:
s010, pressing the sugarcane through a juice pressing device to obtain sugarcane juice; in the step S010, the heads and the tails of the sugarcanes to be juiced are removed, white grease wax on the sugarcanes is removed and then cleaned, so that the pollution of impurities to the sugarcane juice can be reduced, the white grease wax is insoluble in water and removed in advance, the process loads of flocculation, precipitation, filtration and the like can be reduced, and the sugarcane juice is relatively pure.
S020, sieving the sugarcane juice obtained in the S010 by a 150-mesh sieve to obtain sieved raw juice and sieved residues, and filtering by using polyester fabric.
S030, adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.0, standing for 1-2 hours under the protection of carbon dioxide gas, and filtering to remove residues; in the step, the juice can be kept stand for 1-2 hours under the protection of carbon dioxide gas, flocculation can be accelerated, further oxidation of the screened juice is avoided, and the effect of adsorbing and removing colloids and pigments in the sugar juice is achieved.
And S040, under the protection of nitrogen or carbon dioxide, heating the screened raw juice in the S030 to 92 ℃, heating by adopting a steam or heat conduction oil heating mode, conveniently controlling the temperature, simultaneously preventing local scorching, removing the formed floating condensate, and filtering to obtain the sugar juice clear solution.
S060, preparing the massecuite obtained from the S050 into solid brown sugar, wherein the S060 step comprises the following steps:
s061, under the protection of nitrogen or carbon dioxide, boiling the sugar juice clear liquid obtained in the step S040 at 123 ℃ under normal pressure, heating the sugar juice clear liquid in a steam or heat-conducting oil heating mode to facilitate temperature control and prevent local scorching, so as to obtain sugar paste with the concentration of 94 degrees Bx, continuously stirring the sugar paste in the boiling process to quickly evaporate the moisture in the sugar cane juice, and naturally, removing colloid aggregates formed in the production process from time to time during evaporation and concentration in the step S061 to enable the brown sugar to be purer;
s062, placing the massecuite obtained in the step S050 in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and sand lines appear; the mixed gas in the S062 is nitrogen or carbon dioxide, the massecuite is prevented from being oxidized into dark brown or blackened by mixing the nitrogen or the carbon dioxide, and meanwhile, the gas is introduced to stimulate crystallization so as to accelerate the sanding process. During sanding, the massecuite can be poured into a sanding cylinder of a sanding device, standing is carried out for 2-5 minutes, stirring is started to stimulate crystallization, the cooling speed during sanding is less than 2 ℃/min, the time is not more than 30 minutes, and the rotating speed of the sanding machine is controlled at 15-20 rpm.
And S070, pouring the massecuite subjected to sanding in the S061 into a mold, cooling the poured mold at normal temperature, and removing the cooled brown sugar from the mold.
The embodiment further comprises the following steps: before the step S050, concentrating the sugar juice clear liquid obtained in the step S040 to 30-degree Bx, cooling, keeping the temperature of the sugar juice clear liquid at 62 ℃, adding sodium alginate with the mass fraction of 0.4% into the sugar juice clear liquid, dispersing sodium alginate powder into purified water to form paste, and then adding the paste into the sugar juice clear liquid, so that the sodium alginate powder can be conveniently and rapidly dispersed into the sugar juice, agglomeration is avoided, and the sodium alginate can be added in multiple times, and is added and stirred each time. And (4) stirring the sugar juice clear liquid, standing for 2-3 hours, and using the sugar juice clear liquid without the precipitate for sugar boiling in the step S050.
Examples 3,
A preparation method of ecological brown sugar comprises the following steps:
s010, pressing the sugarcane through a juice pressing device to obtain sugarcane juice; in the step S010, the heads and the tails of the sugarcanes to be juiced are removed, white grease wax on the sugarcanes is removed and then cleaned, so that the pollution of impurities to the sugarcane juice can be reduced, the white grease wax is insoluble in water and removed in advance, the process loads of flocculation, precipitation, filtration and the like can be reduced, and the sugarcane juice is relatively pure.
S020, sieving the sugarcane juice obtained in the S010 by a 200-mesh sieve to obtain sieved raw juice and sieved residues, and filtering by polyester fabric.
S030, adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.5, standing for 1-2 hours under the protection of carbon dioxide gas, and filtering to remove residues; in the step, the juice can be kept stand for 1-2 hours under the protection of carbon dioxide gas, flocculation can be accelerated, further oxidation of the screened juice is avoided, and the effect of adsorbing and removing colloids and pigments in the sugar juice is achieved.
And S040, under the protection of nitrogen or carbon dioxide, heating the screened raw juice in the S030 to 95 ℃, heating by adopting a steam or heat conduction oil heating mode, conveniently controlling the temperature, simultaneously preventing local scorching, removing the formed floating condensate, and filtering to obtain the sugar juice clear solution.
S060, preparing the massecuite obtained from the S050 into solid brown sugar, wherein the S060 step comprises the following steps:
s061, under the protection of nitrogen or carbon dioxide, boiling the sugar juice clear liquid obtained in the step S040 at 125 ℃ under normal pressure, heating the sugar juice clear liquid in a steam or heat-conducting oil heating mode to facilitate temperature control and prevent local scorching, so as to obtain sugar paste with the concentration of 96 degrees Bx, continuously stirring the sugar paste in the boiling process to quickly evaporate the moisture in the sugar cane juice, and naturally, removing colloid aggregates formed in the production process from time to time during evaporation and concentration in the step S061 to enable the brown sugar to be purer;
s062, placing the massecuite obtained in the step S050 in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and sand lines appear; the mixed gas in the S062 is nitrogen or carbon dioxide, the massecuite is prevented from being oxidized into dark brown or blackened by mixing the nitrogen or the carbon dioxide, and meanwhile, the gas is introduced to stimulate crystallization so as to accelerate the sanding process. During sanding, the massecuite can be poured into a sanding cylinder of a sanding device, standing is carried out for 2-5 minutes, stirring is started to stimulate crystallization, the cooling speed during sanding is less than 2 ℃/min, the time is not more than 30 minutes, and the rotating speed of the sanding machine is controlled at 15-20 rpm.
And S070, pouring the massecuite subjected to sanding in the S061 into a mold, cooling the poured mold at normal temperature, and removing the cooled brown sugar from the mold.
The embodiment further comprises the following steps: before the step S050, the sugar juice clear liquid obtained in the step S040 is concentrated to 35-degree Bx sugar juice clear liquid smaller than 35-degree Bx, the viscosity can be kept low, sodium alginate mixing and reaction are facilitated, the sugar juice clear liquid is cooled, the temperature of the sugar juice clear liquid is kept at 55 ℃, sodium alginate with the mass fraction of 0.28% is added into the sugar juice clear liquid, sodium alginate powder can be dispersed in purified water to form paste, then the paste is added into the sugar juice clear liquid, the sodium alginate powder can be rapidly dispersed into sugar juice, agglomeration is avoided, the sodium alginate can be added in multiple times, and the adding and stirring are performed each time. And (4) stirring the sugar juice clear liquid, standing for 2-3 hours, and using the sugar juice clear liquid without the precipitate for sugar boiling in the step S050.
The method has the advantages that the whole preparation process at least comprises twice flocculation, the prepared brown sugar is pure, free of sediment, pure in taste and high in sweetness, and meanwhile, the lime method is adopted for carrying out the first flocculation, so that the brown sugar is simple and clean, and the brown sugar prepared from the concentrated cane juice is high in polyphenol antioxidant content. Meanwhile, the preparation method can reduce the oxidation of nutrient substances in the preparation process, so that the brown sugar is golden in color and luster, and the nutrient components of the brown sugar are kept as far as possible. Lime milk is introduced for flocculation in the early stage, the lime milk enters calcium ions and lime milk particles in sugar juice, and has a finer granular feeling, so that the taste is reduced, and the calcium ions are easy to react into precipitates, the sediment also influences the taste of the brown sugar, is easy to scale in brown sugar preparation equipment, is natural and safe in sodium alginate, can be extracted and produced, a network gel structure is formed by the reaction of sodium alginate, calcium ions, magnesium ions and the like, can remove partial metal ions in the sugar juice, certainly because of the introduction of lime milk, the calcium ions have higher content than other metal ions, the calcium ions and sodium alginate have stronger chelation to generate calcium alginate sediment, not only can produce and remove the calcium ions, but also can be used as a flocculating agent, further flocculate the impurities in the sugar juice, and further remove various impurities including lime milk, so that the sugar juice is purer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The preparation method of the ecological brown sugar is characterized by comprising the following steps:
s010, pressing the sugarcane through a juice pressing device to obtain sugarcane juice;
s020, sieving the sugarcane juice obtained in the S010 by a sieve of 80-200 meshes to obtain sieved raw juice and sieved residues;
s030, adding lime milk into the screened raw juice obtained in the S020, adjusting the pH value to 6.0-6.5, standing for 1-2 hours under the protection of carbon dioxide gas, and screening to remove residues;
s040, under the protection of nitrogen or carbon dioxide, heating the screened raw juice in S030 to 90-95 ℃, removing formed floating condensate, and filtering to obtain sugar juice clear liquid;
s050, under the protection of nitrogen or carbon dioxide, boiling sugar in the sugar juice clear liquid obtained in the step S040 at 120-125 ℃ under normal pressure to obtain massecuite with the concentration of 93-96 degrees Bx, and continuously stirring in the boiling process to quickly evaporate water in the sugarcane juice;
and S060, preparing the massecuite obtained in the step S050 into solid brown sugar.
2. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: step S060 includes:
s061, placing the massecuite obtained in the step S050 in a sanding container, continuously stirring the massecuite, continuously stirring and mixing gas, and finishing sanding when the sugar liquid contacts the gas and suddenly changes and a sand line appears;
s062, pouring the massecuite which is subjected to sanding in the S061 into a mold, placing the poured mold at normal temperature for cooling, and removing the cooled brown sugar from the mold.
3. The method for preparing ecological brown sugar according to claim 2, wherein the method comprises the following steps: the gas mixed in the S061 is nitrogen or carbon dioxide.
4. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: heating to 90-98 ℃ in S040 by adopting a steam or heat-conducting oil heating mode; and S050, heating to 120-125 ℃ by adopting a steam or heat conduction oil heating mode, and boiling sugar.
5. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: before the step S050, concentrating the sugar juice clear liquid obtained in the step S040 to 25-35 DEG Bx, cooling, keeping the temperature of the sugar juice clear liquid at 45-62 ℃, adding sodium alginate with the mass fraction of 0.2-0.4% into the sugar juice clear liquid, stirring the sugar juice clear liquid, standing for 2-3 hours, and using the sugar juice clear liquid without precipitates in the step S050 for sugar boiling.
6. The method for preparing ecological brown sugar according to claim 5, wherein the method comprises the following steps: sodium alginate powder is dispersed in purified water to form a paste, which is then added to the sugar juice clear solution.
7. The method for preparing ecological brown sugar according to claim 2, wherein the method comprises the following steps: s061, pouring the massecuite into a sanding cylinder of a sanding device, standing for 2-5 minutes, starting stirring to stimulate crystallization, wherein the cooling speed is less than 2 ℃/min during sanding, the time is not more than 30 minutes, and the rotating speed of a sanding machine is controlled at 15-20 rpm.
8. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: and (S050) occasionally cleaning colloid aggregates formed in the production process during evaporation and concentration.
9. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: and S010, removing the head and the tail of the sugarcane to be juiced, and cleaning the sugarcane after removing white lipid wax on the sugarcane.
10. The method for preparing ecological brown sugar according to claim 1, wherein the method comprises the following steps: and in the step S030, adding lime milk into the screened raw juice obtained in the step S020, and standing for 1-2 hours under the protection of carbon dioxide gas.
CN202111632301.2A 2021-12-29 2021-12-29 Preparation method of ecological brown sugar Pending CN114292965A (en)

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