KR20170139848A - Method for High Quality Raw Sugar from Sugar Cane Using New Technology - Google Patents

Abstract

The present invention relates to a process for preparing high-purity raw sugar from Saccharum officinarum by using a new technology. More specifically, the process for preparing high-purity raw sugar from Saccharum officinarum includes the steps of: pretreating and crushing Saccharum officinarum used as an ingredient; squeezing juice from the crushed Saccharum officinarum as well as purifying, sterilizing, and filtering the juice; and concentrating and purifying the filtrate of Saccharum officinarum before filling a space with the filtrate of Saccharum officinarum. The process is free from a browning reaction or a carbonization reaction while removing impurities such a pesticide components by using a nitrogen gas reaction, thereby preparing the high-purity raw sugar in a natural brown color with excellent taste and flavor.

Description

TECHNICAL FIELD The present invention relates to a method for producing high purity raw sugar from sugarcane using a new technology,

The present invention relates to a method for producing high purity raw sugar from sugarcane using new technology. More particularly, the present invention relates to a process for pretreating and crushing sugarcane feedstock, a step of squeezing, purifying, sterilizing and filtering the sugarcane crushed product, and a step of preparing high purity raw sugar for concentrating, purifying and filling the sugarcane filtrate .

Since the present invention does not have browning reaction or carbonization reaction during the production process and removes foreign substances such as pesticide components by a nitrogen gas (N ₂ ) reaction, it can provide raw sugar having a color tone of natural brown and excellent taste and flavor.

Sugar Cane (Sugar Cane) is a monocotyledonous plant in the field of potatoes. It is a perennial plant of large tall and is cultivated in southern regions of Brazil, Hawaii, Indonesia, Malaysia, Thailand, Vietnam and China in sub-tropical regions with an average annual temperature of 20 ℃ or higher. It is used as a raw material to make sugar because it contains a lot of sugar in the body of the stem. It is fermented as a by-product molasses and is used as ethanol, biofuel, carbohydrate for fermentation of microorganism and animal feed.

The raw sugar is brown sugar, which is obtained by removing the molasses from centrifugal separator simply from the origin of sugar cane. The refined sugar is a sugar made by refining process such as refining from the raw sugar. It is made by adding white sugar, , And brown sugar. In the prior art similar to the present invention, Japanese Patent No. 4315358 (a method for producing a raw sugar from sugarcane) was prepared by mixing the raw juice of Bx 13 and pH 5.3 obtained by squeezing and extracting sugarcane with an alkali at pH 6.2 to 7.2 After removing insoluble substances by filtration, the crude juice is subjected to ultrafiltration treatment, and the resulting clarifying juice is concentrated and crystallized to obtain raw sugar and molasses. Also, soluble polymer such as lime, coagulant and filtration tank is removed from the sludge obtained by ultrafiltration, and the sugar solution is recovered again.

Korean Patent Registration No. 10-0783746 (Organic sugar production method) is a method of extracting, compressing and juicing a raw solution from sugarcane; A filtration step of removing impurities from the extracted stock solution; Cooling the crude liquid from which the impurities have been removed to 5 to 10 占 폚, cooling and cooling the crystallized sugar to 5 to 10% by weight based on the weight of the undiluted solution to increase the degree of saturation; A low-speed centrifugation step of rotating the molasses at which saturation is increased at a rotation speed of 600 to 1000 rpm at a temperature of 5 to 10 DEG C so as to facilitate the separation of sugar crystals using the difference in solubility, thereby precipitating solid components; A low-temperature drying step of drying a solid component at a temperature of not higher than 40 占 폚 by a vacuum decompression concentration method to obtain a saccharide crystal which is not destroyed by vitamins; And the sugar crystals are shipped as a sugar product through a post-process.

Korean Patent Registration No. 10-1150929 (method for producing sugar using sugar beet and its sugar) is used for washing sugar beet, cutting sugar beet, mixing sugar beet with water, and then extracting it at 75 to 80 ° C for 2 to 3 hours, Primary filtration with a 0.5 to 2 mm filter, primary filtration of the extracted liquid is first concentrated at a reduced pressure of 15 to 20 ° Brix at 50 to 60 ° C. Secondary filtrate to remove precipitates by adding lime to impurities contained in the concentrate Was subjected to tertiary microfiltration using a microfilter and concentrated under reduced pressure to a moisture content of 5% or less at 50 to 60 ° C to remove water and as a crystal seed to promote particleization in sugar beet concentrate, sugar was added to about 2-5 weight , Vacuum drying at a vacuum of 55 to 65 mbar for 7 to 9 hours, and drying the vacuum dried product at 50 to 60 ° C.

As other similar patents, Korean Patent Publication No. 1985-0001798 discloses a method in which impurities such as cations and anions including pigments contained in a crude reducing sugar liquid separated from molasses molten are used as a continuous column of porous strongly acidic cations and strong basic anion exchange resins To produce a high purity reducing sugar liquid.

However, these prior art methods for producing raw sugar from sugarcane include filtering, removing, concentrating, crystallizing and separating insoluble materials, removing soluble polymer substances from the sludge, and recovering the sugar solution again. A method for producing sugar from sugar beet is to make sugar by adding filtration, concentration and crystallization seeds. However, the present invention is different from the conventional technique and the technical idea and constitution in the method of making the raw sugar by the new technique.

Japanese Patent No. 4315358 (method for producing raw sugar from sugar cane) Korean Patent 10-0783746 (Organic sugar manufacturing method) Korean Patent 10-1150929 (Method for producing sugar using sugar beet and its sugar)

The conventional process of producing sugar from sugar cane has a problem that the browning reaction occurs locally due to overheating during the heat treatment process, so that the color is changed to coarse or poor quality even if filtration is performed by a carbonized foreign matter. In addition, since it is an agricultural product, it is difficult to provide a purity of high purity since the pesticide ingredient derived from the soil or the foreign matter or odor which may be derived from the filtration process remain.

The present invention comprises a step of pretreating and crushing a raw material of sugarcane, a step of squeezing, purifying, sterilizing and filtering the crushed sugarcane, and a step of preparing a high purity raw sugar for concentrating, purifying and filling the sugarcane filtrate.

In the present invention, since no browning reaction or carbonation reaction occurs during the production process and foreign substances such as pesticide ingredients are removed by a nitrogen gas reaction, it is possible to provide a raw sugar having a natural brown color and excellent taste and flavor.

The present invention improves the color with a clear brown sugar liquid which does not generate carbide and does not cause browning reaction because it is heated by water vapor during the production process. The taste is purified by coagulating the foreign material with gelatin and bentonite to remove the impurities and odor. In addition, foreign matter and pesticide residues can be removed due to nitrogen gas bombardment. Therefore, the color tone can be natural brown, and the raw sugar having excellent taste and flavor can be provided.

1 shows a manufacturing process diagram of the present invention.

The present invention comprises a step of pretreating, heating and crushing a sugar cane raw material, a step of juicing, purifying, sterilizing and filtering the sugar cane lump, and a step of preparing a high purity raw sugar for concentrating, purifying and filling the sugar cane filtrate .

Example 1: Pretreatment, heating and shredding of sugarcane

1) Pretreatment

Remove the leaves and branches from the sugar cane raw materials, wash them with purified water using only the stem, remove the foreign matter, and remove the water. To increase the juice rate of the raw sugar liquid, wash and dry the sugarcane stalk to a size of 1-5 cm.

2) Heating

The cut sugarcane stalks thus cut are placed in a tank and heated at a temperature of 55-65 DEG C for 2-6 hours. If carbonization occurs partially due to overheating, foreign matter and foreign matter are generated. Therefore, it is preferable to use steam to maintain the heating temperature and prevent carbonization. In addition, when heating, the temperature of the crushed sugarcane stalks should be kept well. (5 or more, not less than 4, slightly less than or equal to 3.5) of the raw sugar liquid was heated by steam or heated with a heater to judge whether or not the imine odor was generated according to the temperature, Respectively.

From the above results, it has been found that heating with water vapor has no imitation or odor.

3) Shredding

As described above, the sugarcane stem heated by steam is put into a crusher and crushed to a size of 0.1-0.5 cm.

≪ Example 2 >: The juice, refinement, sterilization and filtration step of sugarcane pulp

4) juice and primary filtration

The crushed sugarcane stalks are squeezed by using a belt press as an extractor. The sugar cane juice solution is firstly filtered using a filter having a size of 30-50 mesh.

5) Clarification

1% gelatin solution and 0.5-1.5% bentonite solution were added to the sugar cane juice solution to aggregate inorganic ions, tannins and protein coagulating substances contained in sugar cane by chelate and precipitation reaction, . First, the gelatin solution is added and stirred, and then the bentonite solution is slowly injected to cause the sugar cane stock solution to purify. In this case, if excessive amount is injected, cleaning effect will be lowered. Physico-chemical purification using gelatin solution is cheaper and easier to operate than enzyme purification or ultrafiltration. In order to investigate the removal effects of inorganic ions and tannins according to the concentration of gelatin solution and bentonite solution, it was investigated by Kim, Jun - Chul et al. (2009) [Lee, Sun - Hee, Inorganic ions in the sugar solution were measured by the method of Oenology Enology, Baeksan Publishing Co., 2009], and are shown in Table 2 below.

From the above results, addition of 1% solution of bentonite to gelatin 1% solution showed excellent clarifying effect on sorghum extract.

6) Separation of supernatant and secondary filtration

The supernatant obtained by aggregating inorganic ions, tannins, and protein impurities with gelatin and bentonite as described above is decanted and secondary filtered with a filter having a size of 1 mu m to obtain a stock solution of sugar cane.

7) Balance Treatment and Filtration

The remaining solution settled in the above-mentioned quadrature visibility filter is secondly squeezed with a separate filter press, and then filtered in the same manner as above. The filtrate is mixed with the sugar cane stock solution, and the residue is separated.

8) Sterilization and tertiary filtration

The sugar cane stock solution obtained as described above is sterilized at 105-115 ° C with an instant sterilizer, cooled to 60-70 ° C, and then subjected to a third filtration with a filter filled with diatomaceous earth.

Example 3: Concentration, purification and filling of sugar cane filtrate

9) Enrichment and purification (aging)

The sugar cane stock solution filtered through diatomite as described above is concentrated under reduced pressure at 55-65 ° C, and the sugar cane stock solution is concentrated to 65-70 brix. Nitrogen gas (N ₂ ) is gradually injected from the lower part of the concentrator in the concentration process and is evaporated together with moisture to remove residual moisture. At this time, in order to remove oxidation and other odor, the size of the outlet of the nozzle using nitrogen gas is set to 1 - 10 μm and the nitrogen gas bubble size is adjusted to 10-100 μm while controlling the degree of vacuum of the concentrator, As small as possible. The amount of nitrogen gas to be added can be added or subtracted while confirming whether the pesticide remains or not.

The inhibitory effect of oxidation on the concentration of sugar cane juice concentrate by the size of nitrogen gas bubbles was measured by the TBARS method and the deodorization effect was measured by the 5 - point scale sensory evaluation method. At this time, the score is 5 points: no odor, 4 points: little odor, 3 points or less: indicates odor. The efficacy of pesticide residue removal was measured using the standard test methods presented in the Food and Drug Safety Standards [Food Standards and Standards] listed in Annex 4 of the Pesticide Residue Criteria for Agricultural Products. The amounts of the standard pesticides (Aldicarb sulfoxide, Aldicarb sulfone, Methomyl, Oxamyl, 3-hydroxycarbofuran, Aldicarb, Propoxur, Carbofuran, Carbaryl, 1-Naphthol, Methiocarb and BDMC) were calculated and totaled.

The results are shown in Table 3 below.

10) Filling

The concentrated sugar cane stock solution is filled into a sterilizing container. The shelf life is 24 months.

In the present invention, since no browning reaction or carbonation reaction occurs during the production process and foreign substances such as pesticide ingredients are removed by a nitrogen gas reaction, it is possible to provide a raw sugar having a natural brown color and excellent taste and flavor. Therefore, there is an industrial possibility.

Claims (10)

A method for producing high purity raw sugar from sugarcane, comprising the steps of pretreating and crushing the sugar cane stock, crushing, sifting, sterilizing and filtering the sugar cane crum, and concentrating, purifying and filling the sugar cane filtrate The method according to claim 1, wherein the pretreatment is performed by washing sugarcane feedstock, cutting the sugarcane feedstock to a size of 1-5 cm, and heating the sugarcane feedstock to steam at 55-65 ° C for 2-6 hours. The method according to claim 1, wherein the pretreated sugarcane feedstock is placed in a crusher and crushed to a size of 0.1-0.5 cm, and then the mixture is squeezed using a belt press, and then filtered using a filter having a size of 30-50 mesh. Of high purity raw sugar from sugar cane The method according to claim 1, wherein the purifying step comprises agglomerating inorganic ions contained in sugar cane with a chelating reaction by adding 0.5-1% gelatin solution to the juice obtained by squeezing the sugar cane lump, The method comprising the step of gradually adding the bentonite solution to the juice solution containing the gelatin solution for 1 to 60 minutes while allowing the sugar solution to coagulate, thereby aggregating the sugar cane stock solution 5. The method for producing high purity raw sugar from sugarcane according to claim 4, wherein a supernatant obtained by agglomerating inorganic ions and impurities with gelatin and bentonite is separated and filtered with a filter having a size of 1 mu m to obtain a sugar cane stock solution The method for producing high purity raw sugar from sugarcane according to claim 1, wherein the remaining liquid precipitated in the filter is filtered with a filter press to filter the filtered filtrate into sugar cane stock solution, and then the residue is separated The method according to claim 1, wherein the sugarcane stock solution is sterilized at 105-115 DEG C with an instant sterilizer, cooled to 60-70 DEG C, filtered through a filter coated with diatomaceous earth, and then the sugarcane stock solution is concentrated to 55-65 DEG C And concentrating the stock solution of sugar cane to 65-70 brix. The method for producing high purity raw sugar from sugarcane The method according to claim 1, wherein nitrogen gas (N ₂ ) is gradually injected from the lower part of the concentrator to evaporate and remove the nitrogen gas (N ₂ ) together with water in the concentration process to remove imitation and odor, ≪ / RTI & The process according to claim 1, wherein the nitrogen gas injection size is in the range of 1-10 μm. A high purity raw sugar prepared by the method of any one of claims 1 to 9

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