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Method of clarifying saccharic crop pressed juice mixture by using bentonite-chitin composite flocculant

A composite flocculant and bentonite technology, which is applied in the purification of sugar juice, production and application of sugar, etc., can solve problems such as restricting economic benefits, deteriorating flavor of sugar cane juice, and turbidity.

Inactive Publication Date: 2005-11-09
FUJIAN NORMAL UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the mixed juice contains a large amount of organic non-sugar substances, and most of the organic non-sugar substances are suspended in the mixed juice with colloidal particles, making it turbid, which greatly affects the preparation efficiency and restricts the economic benefits.
For example, in the prior art, sugarcane mixed juice is further processed into sugarcane clear juice for large-scale production, which adopts the sulfurous acid method and carbonic acid method in the sugar industry. The common feature of these two methods is that the sugarcane juice needs to be heated at high temperature (100°C). , some useful substances of sugarcane juice are destroyed by high-temperature heat treatment, and the original flavor of sugarcane juice deteriorates. This shows that this process is especially unreasonable for beverage processing.

Method used

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  • Method of clarifying saccharic crop pressed juice mixture by using bentonite-chitin composite flocculant

Examples

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Embodiment 1

[0013] According to the ratio of 50mL: 40g, 50mL of 1.0% chitosan (90% degree of deacetylation) solution was mixed with 40g of modified bentonite to form bentonite-chitosan paste. The bentonite-chitosan paste was placed in a blast oven at 60°C, and after drying, it was ground into a powdery composite flocculant for future use.

[0014] Take 45kg of the sugarcane stems of Funong 91-4710 variety, wash and cut them into multiple sections, put them in a sugarcane press to squeeze the sugarcane juice, and then squeeze the slag for a second squeeze. The light rate is 6%). In order to prevent the sugarcane mixed juice from becoming turbid and sour due to microbial contamination, the sugarcane mixed juice was heated to 68°C and kept for 5 minutes. Take 1000 mL of heated sugarcane mixed juice and add 12 g of bentonite-chitosan composite flocculant, and stir with a magnetic stirrer (150 r / min) for 5 min. Use a fast settler for 20 minutes. After decanting the supernatant, the turbid l...

Embodiment 2

[0016] According to the ratio of 50mL: 40g, 25mL of 1.0% chitosan (90% degree of deacetylation) solution was mixed with 20g of modified bentonite to form bentonite-chitosan paste. The bentonite-chitosan paste was placed in a blast oven at 60°C, and after drying, it was ground into a powdery composite flocculant for future use.

[0017] Take 45kg of sweet sorghum variety "Leo" stalks, wash and remove the leaf sheaths, cut into multiple sections, put them in a press to squeeze sweet sorghum juice, squeeze the dregs for a second squeeze, and combine the sweet sorghum juice from the two squeezes into a turbid state Mixed juice (light transmission 4%). In order to prevent the mixed juice from becoming turbid and sour due to microbial contamination, heat the mixed juice to 68°C and keep it for 5 minutes. Take 500 mL of mixed juice and add 6 g of bentonite-chitosan composite flocculant, and stir with a magnetic stirrer (150 r / min) for 5 min. Use a fast settler for 20 minutes. Afte...

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Abstract

A method for clarifying the juice mixture obtained by squeezing the sugar-contained crops (sugar cane, sweet sorghum, etc) features use of the composite bentone-chitosan flocculant. Its filtered mud can be used as organic fertilizer.

Description

technical field [0001] The invention relates to a method for clarifying mixed juice squeezed from sugar crops by using a bentonite-chitosan composite flocculant, in particular to a clarification method for mixed juice obtained by squeezing juice extracted from sugar cane and sweet sorghum in sugar crops. Background technique [0002] In the sugar industry and alcohol preparation technology, sugary crops such as sugarcane and sweet sorghum are generally used as raw materials, and the mixed juice is obtained by pressing and extracting the juice, which enters the next process without effective clarification or unreasonable technology. Because the mixed juice contains a large amount of organic non-sugar substances, and most of the organic non-sugar substances are suspended in the mixed juice with colloidal particles, making it turbid, which greatly affects the preparation efficiency and restricts the economic benefits. For example, in the prior art, sugarcane mixed juice is furt...

Claims

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Application Information

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IPC IPC(8): C13B20/00
Inventor 黄祖新陈由强黄建忠张彦定陈如凯张华
Owner FUJIAN NORMAL UNIV
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