Technique for glycosylated degradation of white spirit waste lees to prepare fermentalbe sugar

A technology for fermenting sugar and liquor, which is applied in the field of saccharification and degradation of liquor and discarded grains, efficient saccharification and degradation of liquor and discarded grains to prepare fermentable sugar, and can solve the problems of low utilization rate, no formation of liquor and discarded grains, etc., and achieves high recovery rate and reduced production. The effect of low cost and separation cost

Inactive Publication Date: 2010-07-14
SICHUAN UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Song Andong et al. reported the experimental research on the production of fuel ethanol by fermenting distiller's grain biomass [Journal of Agricultural Engineering. 2003, 19(4): 278-281]. The results of the study show that the direct use of distilled grains to ferment the starch and cellulose of ethanol can produce ethanol at a rate of 2% and 4%, respectively, and their utilization rates are relatively low.
Secondly, Mo Kai et al. conducted a preliminary discussion on some processes of saccharification and degradation of liquor discarded grains [discussion on the preparation conditions of liquor discarded grains saccharification and degradation liquid. Liquor Science and Technology. 2007, 160(10): 85-87.], but did not form The complete process of liquor waste grains from pretreatment, saccharification and degradation to separation of sugar and acid

Method used

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  • Technique for glycosylated degradation of white spirit waste lees to prepare fermentalbe sugar
  • Technique for glycosylated degradation of white spirit waste lees to prepare fermentalbe sugar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The distilled grains used in this example are secondary distilled grains provided by Wuliangye Distillery in my country; the model of the anion exchange resin used is D301 macroporous weak base anion exchange resin.

[0031] (1) Drying of waste:

[0032] 100g of fresh secondary liquor fermented with 65.5% water content, 16.91% crude starch, 22% crude fiber, and 15.62% ash, dried at 90°C, and the water content was determined to be 6%. Crush to make fine powder, store in a dry and cool place for later use;

[0033] (2) Throwing grains into fine pulverization:

[0034] Pass 30 g of the above-mentioned dregs powder after drying and crushing through a 40-mesh sieve, and the sieving ratio is 92.65%;

[0035] (3) Dilute hydrochloric acid saccharification degradation:

[0036] Weigh 25 g of the above-mentioned distilled grains powder and 2% hydrogen chloride (HCl) with a mass fraction of 2%, mix the mixture according to the ratio of mass volume ratio of 1:10, saccharify and ...

Embodiment 2

[0042] The distilled grains of liquor used in this example are the one-time distilled grains of liquor provided by Quanxing Distillery in my country; the model of the anion exchange resin used is D301 macroporous weak base anion exchange resin.

[0043] (1) Drying of waste:

[0044] Take 100g of primary liquor distilled grains with water content of 65%, crude starch 18.05%, crude fiber 35.43%, ash content 13.48%, dry at 90°C until the water content is about 5%, and pulverize it to make distilled grains fine powder , stored in a dry and cool place for later use;

[0045] (2) Finely pulverize the grains;

[0046] Pass through a 40-mesh sampling sieve through 30 g of dried and pulverized dregs powder, and the sieve ratio is 94.52%;

[0047] (3) Dilute hydrochloric acid saccharification degradation:

[0048] Weigh 10 g of the above-mentioned discarded grain powder and 2% hydrogen chloride (HCl) by mass fraction, mix them according to the ratio of mass volume ratio 1:10 to obtai...

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Abstract

The invention relates to a technique for glycosylated degradation of white spirit waste lees to prepare fermentalbe sugar, which includes the procedures of drying and grinding of the white spirit waste lees, glycosylated degradation, the separation of saccharic acid, and the like. The technique is as follows: mixing ground waste lees with hydrogen chloride with mass fraction of 2% according to mass per unit volume of 1:10 for glycosylated degradation and collecting the filtrate; letting the filtrate pass through a chromatographic column which is filled with anionic resin, eluting through distilled water and collecting the eluate by step; and combining the eluates with sugar content equal to or more than 0.5 to be recovered sugar liquid. The recovered sugar liquid can be used as material for alcohol fermentation or other fermentations after being concentrated, and the used anionic exchange resin can be regenerated through NaOH. The concentration of the reducing sugar in the recovered sugar liquid prepared through the technique is equal to or more than 1%, wherein the content of dextrose is 55%, the content of xylose is 35% and the content of others is 10%; and the separation and recovery rate of the saccharic acid is more than 75%. The saccharic acid separation process is low in cost and no harmful impurities such as sulfate radical and the like are left behind, so the fermentalbe sugar has little effect to the subsequent alcohol fermentation or other fermentations. Therefore, the fermentalbe sugar is ideal material for alcohol fermentation and other fermentations.

Description

technical field [0001] The invention relates to a technique for saccharifying and degrading liquor waste, in particular to a new process for preparing fermentable sugar through saccharification and degrading liquor waste, which belongs to the field of light industry biotechnology. Background technique [0002] my country is a big wine production and consumption country. The large-scale production of liquor produces a huge amount of fermentation waste while meeting market needs and accumulating a large amount of construction funds for the development of the national economy. Because distiller's grains contain a large amount of organic matter, such as starch, cellulose, and organic acids, discarding distiller's grains as waste not only wastes resources, but also causes serious environmental pollution pressure. At present, the main utilization methods of domestic liquor discarded grains include: reproducing raw wine, producing glycerin, cultivating edible fungi, extracting and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K13/00C13K1/06C13K1/02
Inventor 张文学吴正云谭力莫凯
Owner SICHUAN UNIV
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