CN104824778A - Processing method of sugarcane juice solid beverage - Google Patents

Abstract

A method for processing sugarcane juice solid beverages, comprising the following steps: filtering the sugarcane juice through a drum sieve and a curved sieve in sequence to obtain coarsely filtered sugarcane juice; heating the coarsely filtered sugarcane juice to 90-100°C and keeping it for 1-2 minutes , quickly cooled to obtain enzyme-inactivated sugarcane juice; the enzyme-inactivated sugarcane juice was clarified by ultrafiltration with a multi-stage ceramic membrane ultrafiltration system with a membrane pore size of 0.02-0.10 μm to obtain sugarcane clarified juice; the clarified sugarcane juice was evaporated and concentrated into sugarcane concentrate juice; put the concentrated sugar cane juice into the vacuum cooking sugar tank for further evaporation and concentration to obtain massecuite; stir the massecuite until the massecuite has fine sand, pour it into the mold, cool to room temperature, cut into blocks, and then dry Finished product after packaging. The prepared sugarcane juice solid drink can be drunk after being dissolved in hot water, has clear and transparent color, strong fragrance, sweet and delicious taste, and better maintains the original nutritional components and flavor substances of sugarcane.

Description

A kind of processing method of sugarcane juice solid beverage

technical field

The invention relates to a processing method for a sugarcane juice solid beverage, belonging to the technical field of food processing.

technical background

Sugarcane is a unique subtropical fruit. It is rich in juice, high in sugar, and sweet in taste, and is widely loved by people. In addition, sugarcane also has the functions of clearing away heat and detoxification, promoting body fluid and quenching thirst, harmonizing the stomach and relieving vomiting, nourishing yin and moistening dryness, etc. It is a high-quality raw material for the production of beverages. At present, the method of making beverage with sugarcane juice mainly contains two kinds: a kind of is directly squeezed sugarcane juice and is mixed with beverage; Limited by resources and raw materials, it is impossible for beverage processing enterprises to directly extract sugarcane juice to make beverages. At present, most enterprises use concentrated sugarcane juice as raw material to produce sugarcane juice beverages. And still contain more moisture in the sugarcane concentrated juice, be inconvenient to transport and store. Compared with liquid beverages, solid beverages have the advantages of significantly lighter weight, significantly smaller volume, convenient portability, good flavor, wide application range, convenient drinking, easy maintenance of hygiene, simple packaging, and convenient transportation, and have gradually attracted people's attention. However, there are few reports on the processing of sugarcane juice into solid beverages. Therefore, it is necessary to provide a processing method of sugarcane juice solid beverage to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a processing method for sugarcane juice solids, which solves the technical problem that the traditional sugarcane juice beverage contains too much water, which is not conducive to storage and transportation.

In order to achieve the above object, the present invention adopts the following technical solutions:

A processing method for sugarcane juice solid beverage, comprising the following specific technical steps:

(1) Coarse filtration: the sugarcane juice is successively filtered through a drum sieve and a curved sieve to obtain a coarsely filtered sugarcane juice;

(2) Enzyme inactivation: Put the coarsely filtered sugarcane juice into the first heat exchanger and heat it to 90-100°C and keep it for 1-2min, then send it into the second heat exchanger and cool it to 70-80°C within 60 seconds to obtain the inactivated enzyme. enzymatic sugarcane juice;

(3) Ceramic membrane ultrafiltration: Send the enzyme-inactivated sugarcane juice to the ceramic membrane ultrafiltration working tank, and perform ultrafiltration and clarification with a multi-stage ceramic membrane ultrafiltration system with a membrane pore size of 0.02-0.10 μm to obtain turbidity less than 1.00 NTU. clarified sugarcane juice;

(4) Vacuum evaporation: send the clarified sugarcane juice into the falling film type three-effect vacuum evaporation system, evaporate and concentrate it to 60.0～65.0°Bx, and obtain concentrated sugarcane juice;

(5) Vacuum concentration: send the concentrated sugarcane juice into the vacuum boiling sugar tank for further evaporation and concentration to obtain massecuite of 92.0～96.0°Bx;

(6) Cooling and forming: the massecuite is taken out from the sugar boiling pot, stirred until the massecuite is finely sanded, poured into the abrasive tool, cooled to room temperature, cut into blocks, and obtained sugarcane juice solid beverage;

(7) Dry packaging: the sugarcane juice solid drink is dried and packaged to obtain the finished product.

The screen mesh of the curved sieve described in step (1) is 80-100 mesh.

The multistage ceramic membrane ultrafiltration system described in step (3) is a five-stage parallel ceramic ultrafiltration membrane, and each level of ceramic membrane is made up of two membrane modules, wherein one level plays a role in wheel washing and replacement, and the operation of the ceramic ultrafiltration membrane The parameters are: the transmembrane pressure difference is 0.2-0.4MPa, the membrane surface flow velocity is 4.0-5.0m/s, and the filtration temperature is 70-80°C.

The operating parameters of the falling-film three-effect vacuum evaporation described in step (4) are: evaporation temperature is 60-80° C., and vacuum degree is 0.04-0.08 MPa.

The evaporation temperature of the vacuum sugar cooking pot described in step (5) is 60-75° C., and the vacuum degree is 0.06-0.08 MPa.

After the sugarcane juice solid beverage described in step (6) is diluted with water to 11.5 ° Bx, its turbidity is less than 5.0NTU.

Compared with the prior art, the present invention has the beneficial effects:

1. No chemical reagents and food additives are added during the processing of sugarcane juice solid beverage, which ensures the green safety of food. In addition, in the sugarcane juice clarification process, ceramic membrane ultrafiltration is used for clarification. Due to the small membrane resistance caused by scaling on the ceramic membrane, the membrane permeation flux of the ceramic membrane for filtering sugarcane juice is relatively large, and the flux decay rate of the ceramic membrane is slow. , can maintain a high membrane flux filtration, thereby prolonging the membrane cleaning cycle and reducing the frequency of membrane cleaning.

2. There is no need for cumbersome procedures such as enzymatic hydrolysis and centrifugation in traditional fruit and vegetable juice processing. The production method has short flow, simple equipment structure and low one-time investment cost.

3. Evaporation and concentration processes are all carried out under vacuum conditions to prevent the loss of flavor substances and nutrients in sugarcane juice caused by excessive evaporation and concentration temperatures.

4. Compared with traditional liquid beverages, sugarcane juice is processed into solid beverages. Compared with traditional liquid beverages, it has the advantages of significantly reduced weight, significantly smaller volume, convenient portability, good flavor, wide application range, convenient drinking, easy hygiene, simple packaging, and convenient transportation. .

5. The prepared sugarcane juice solid beverage has a long storage period (greater than 9 months), and can be sold against seasons, thereby obtaining greater profits.

6. After the prepared sugarcane juice solid drink is dissolved in water to 11.5 ° Bx, the color and luster is clear and transparent, the fragrance is strong, the taste is sweet and delicious, and the original flavor substances and nutritional components of sugarcane are better maintained.

Detailed ways

Example 1

A kind of processing method of sugarcane juice solid beverage, its operation steps are:

(1) Coarse filtration: the sugarcane juice is successively filtered through a drum sieve and a sieve with a screen mesh of 100 meshes to remove large particles of impurities such as sugarcane bran and sugarcane debris in the sugarcane juice, and obtain coarsely filtered sugarcane juice;

(2) Enzyme elimination: use the first plate heat exchanger to heat the coarsely filtered sugarcane juice to 100°C, keep it for 1min, and then cool it to 70°C within 60 seconds with the second plate heat exchanger to prevent the sugarcane juice from being overheated. Loss of flavor substances and nutrients, to obtain enzyme-inactivated sugarcane juice;

(3) Ceramic membrane ultrafiltration: send the enzyme-inactivated sugarcane juice to the ceramic membrane ultrafiltration working tank, and perform ultrafiltration and clarification with a multi-stage ceramic membrane ultrafiltration system with a membrane pore size of 0.02 μm. The operating parameters of the ceramic ultrafiltration membrane are: The transmembrane pressure difference is 0.2MPa, the membrane surface flow velocity is 4.0m/s, and the filtration temperature is 70°C to obtain sugarcane clarified juice with a turbidity less than 1.00NTU;

(4) Vacuum evaporation: send the clarified sugarcane juice into the falling film three-effect vacuum evaporation system. The operating parameters of the vacuum evaporation are: the evaporation temperature is 60-80°C, the vacuum degree is 0.04-0.08MPa, and it is evaporated and concentrated to 65.0 °Bx, obtain sugarcane concentrated juice;

(5) Vacuum concentration: the concentrated sugarcane juice is sent into a vacuum cooking pot for further evaporation and concentration. The evaporation temperature of the sugar pot is 60-75° C., and the vacuum degree is 0.06-0.08 MPa to obtain a massecuite of 94.0 ° Bx;

(6) Cooling and forming: the massecuite is taken out from the sugar boiling pot, stirred until the massecuite is finely sanded, poured into the abrasive tool, cooled to room temperature, cut into blocks, and obtained sugarcane juice solid beverage;

(7) Dry packaging: the sugarcane juice solid drink is dried and packaged to obtain the finished product.

The method index in the production process of embodiment 1 is shown in the table below:

Note: ^* The turbidity and clearance rate of sugarcane concentrated juice and solid beverage are calculated at 11.5°Bx

The sugarcane juice solid beverage processed by embodiment 1 has hygienic indicators during storage as shown in the table below:

Note: ^* The National Standard of the People's Republic of China GB2760-2011

The sugarcane juice solid beverage processed by embodiment 1 has physical and chemical indicators in the storage period as shown in the table below:

Example 2

A kind of processing method of sugarcane juice solid beverage, its operation steps are:

(1) Coarse filtration: the sugarcane juice is successively filtered through a drum sieve and a sieve with a screen mesh of 80 meshes to remove large particles of impurities such as sugarcane bran and sugarcane debris in the sugarcane juice, and obtain coarsely filtered sugarcane juice;

(2) Enzyme inactivation: use the first tubular heat exchanger to heat the coarsely filtered sugarcane juice to 90°C, keep it for 2 minutes, and then cool it to 80°C within 45 seconds with the second tubular heat exchanger to prevent the temperature from being too high. High causes the loss of sugarcane juice flavor substances and nutrients, and obtains enzyme-inactivated sugarcane juice;

(3) Ceramic membrane ultrafiltration: send the enzyme-inactivated sugarcane juice to the ceramic membrane ultrafiltration working tank, and perform ultrafiltration and clarification with a multi-stage ceramic membrane ultrafiltration system with a membrane pore size of 0.10 μm. The operating parameters of the ceramic ultrafiltration membrane are: The transmembrane pressure difference is 0.4MPa, the membrane surface velocity is 5.0m/s, and the filtration temperature is 80°C, to obtain sugarcane clarified juice with a turbidity less than 1.00NTU;

(4) Vacuum evaporation: send the clarified sugarcane juice into the falling film three-effect vacuum evaporation system. The operating parameters of the vacuum evaporation are: the evaporation temperature is 60-80°C, the vacuum degree is 0.04-0.08MPa, and it is evaporated and concentrated to 60.0 °Bx, obtain sugarcane concentrated juice;

(5) Vacuum concentration: send the concentrated sugarcane juice into a vacuum boiling sugar pot for further evaporation and concentration. The evaporation temperature of the sugar boiling pot is 60-75° C., and the vacuum degree is 0.06-0.08 MPa to obtain a massecuite of 95.0 ° Bx;

(6) Cooling and forming: the massecuite is taken out from the sugar boiling pot, stirred until the massecuite is finely sanded, poured into the abrasive tool, cooled to room temperature, cut into blocks, and obtained sugarcane juice solid beverage;

(7) Dry packaging: the sugarcane juice solid drink is dried and packaged to obtain the finished product.

Method index in the production process of embodiment 2 is as shown in the table below:

Note: ^* The turbidity and clearance rate of sugarcane concentrated juice and solid beverage are calculated at 11.5°Bx

The sugarcane juice solid beverage processed by embodiment 2 has hygienic index during the storage period as shown in the table below:

Note: ^* The National Standard of the People's Republic of China GB2760-2011

The sugarcane juice solid beverage processed by embodiment 2 has physical and chemical indicators in the storage period as shown in the table below:

Claims (6)

1. a processing method for sugar-cane juice solid beverage, is characterized in that, comprises following concrete technical step:

(1) coarse filtration: by sugar-cane juice successively through rotary screen and bent sieved filter, obtain coarse filtration sugar-cane juice;

(2) go out enzyme: coarse filtration sugar-cane juice is sent into First Heat Exchanger and is heated to 90 ~ 100 DEG C and keeps 1 ~ 2min, then send into the second heat exchanger be cooled to 70 ~ 80 DEG C in 60 seconds, obtain the enzyme sugar-cane juice that goes out;

(3) ceramic membrane ultrafitration: ceramic membrane ultrafitration work tank delivered to by the enzyme sugar-cane juice that will go out, carries out ultra filtering clarifying with the multistage ceramic membrane ultrafitration system that membrane aperture is 0.02 ~ 0.10 μm, obtains the sugarcane subsider juice that turbidity is less than 1.00NTU;

(4) vacuum evaporation: clarified sugar cane juice is sent into falling film type triple effect vacuum vaporation system, by its evaporation and concentration to 60.0 ~ 65.0 ° Bx, obtain sugarcane inspissated juice;

(5) Vacuum Concentration: sugarcane inspissated juice is sent into further evaporation and concentration in vacuum pan, obtain the massecuite of 92.0 ~ 96.0 ° of Bx;

(6) cooling forming: taken out from boiling pan by massecuite, is stirred to after massecuite plays young sand and pours in grinding tool, after being cooled to room temperature, be cut into bulk, obtain sugar-cane juice solid beverage;

(7) dry packing: get product after sugar-cane juice solid beverage drying packaging.

2. the processing method of sugar-cane juice solid beverage as claimed in claim 1, is characterized in that, the screen cloth of the song sieve described in step (1) is 80 ~ 100 orders.

3. the processing method of sugar-cane juice solid beverage as claimed in claim 1, it is characterized in that, multistage ceramic membrane ultrafitration system described in step (3) is the ceramic super-filtering film of Pyatyi parallel connection, every grade of ceramic membrane is made up of two membrane modules, wherein have one-level to play wheel and wash replacing effect, the operating parameter of ceramic super-filtering film is: transmembrane pressure is 0.2 ~ 0.4MPa, crossflow velocity is 4.0 ~ 5.0m/s, filtration temperature is 70 ~ 80 DEG C.

4. the processing method of sugar-cane juice solid beverage as claimed in claim 1, it is characterized in that, the operating parameter of the falling film type triple effect vacuum evaporation described in step (4) is: evaporating temperature is 60 ~ 80 DEG C, vacuum is 0.04 ~ 0.08MPa.

5. the processing method of sugar-cane juice solid beverage as claimed in claim 1, it is characterized in that, the evaporating temperature of the vacuum pan described in step (5) is 60 ~ 75 DEG C, and vacuum is 0.06 ~ 0.08MPa.

6. the processing method of sugar-cane juice solid beverage as claimed in claim 1, it is characterized in that, after the sugar-cane juice solid beverage described in step (6) is diluted with water to 11.5 ° of Bx, its turbidity is less than 5.0NTU.