Production method for preparing high maltose syrup and dietary fibers by processing waste residues by means of sweet potato starch

A technology of high maltose syrup and sweet potato starch, which is applied in sugar production, maltose production, sugar production, etc., can solve the problems of insufficient utilization of sweet potato dregs, etc., and achieve the advantages of reuse, low glucose content and high maltose content Effect

Active Publication Date: 2016-08-24
SHANDONG FOOD & FERMENT IND RES & DESIGN INST
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Problems solved by technology

[0007] Although the above method begins to involve the development and utilization of sweet potato residues, the utilization of sweet potato residues is not sufficient. Opening up an effective utilization path for sweet potato residues and implementing rational utilization of sweet potato residues is still one of the current methods for comprehensive utilization of waste potato residues from sweet potato starch processing. important task

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  • Production method for preparing high maltose syrup and dietary fibers by processing waste residues by means of sweet potato starch
  • Production method for preparing high maltose syrup and dietary fibers by processing waste residues by means of sweet potato starch
  • Production method for preparing high maltose syrup and dietary fibers by processing waste residues by means of sweet potato starch

Examples

Experimental program
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Effect test

Embodiment 1

[0057] Take 10kg of fresh potato residue (produced by sweet potato starch processing, water content 88%, starch content 52.5% (dry basis), β-amylase activity 156U / g fresh potato residue), add α-amylase (Novozymes BAN480L) 0.3g / kg starch, after stirring evenly, heat to 80-85°C, keep warm for 5min, measure DE value to 15.8%, cool down to 63±2°C, measure DE value to 49.6% after keep warm and saccharify for 5 hours, filter, filter residue with a small amount of water Wash and combine the filtrates, a total of 13.2L, with a solid content of 4.4%, and concentrate the sugar solution under reduced pressure to a solid content of 20%. Add 6g of activated carbon to the concentrated sugar solution, raise the temperature to 80°C, and keep it warm for 30 minutes for decolorization. The decolorized sugar solution is ion-exchanged, and the impurities are removed in the order of cation-yin-yang. The cation resin is 732 type cation exchange resin, and the anion resin is D315 type anion exchang...

Embodiment 2

[0059] Take 15kg of fresh potato dregs (produced by sweet potato starch processing, water content 89%, starch content 48.5%, β-amylase activity 138U / g), add α-amylase (Novozymes BAN480L) 0.4g / kg starch, stir well , heated to 80-85°C, kept warm for 8 minutes, measured DE value was 21.4%, cooled to 60°C, and measured DE value reached 51.6% after 8 hours of heat preservation and saccharification, filtered, and the filter residue was washed with water to obtain a total of 18L filtrate with a solid content of 4.2 %, the sugar solution is concentrated under reduced pressure to a solid content of 20%. Add activated carbon to the concentrated sugar solution, keep warm and decolorize. The decolorized sugar solution is ion-exchanged, and the conductance of the outflowing sugar solution is controlled below 150 μs / cm. The sugar solution after ion exchange was concentrated under reduced pressure to a solid content of 78%, and a total of 0.93 L of maltose syrup was obtained. Detected by H...

Embodiment 3

[0061] Take 15kg of fresh potato dregs (water content 89%, starch content 49.8%, β-amylase activity 191U / g), add α-amylase (Novozymes BAN480L) 0.5g / kg starch, stir well, heat to 80- 85°C, heat preservation and liquefaction for 4 minutes, the measured DE value is 28.5%, lower the temperature to 60°C, and measure the DE value to 50.2% after heat preservation and saccharification for 2 hours, filter to obtain the saccharification liquid, concentrate the sugar liquid to a solid content of 20%, and then add activated carbon for heat preservation discoloration. The decolorized sugar solution is ion-exchanged, and the conductance of the outflowing sugar solution is controlled below 150 μs / cm. The sugar solution after ion exchange is concentrated to a solid content of 80%. The maltose content reaches 83.1% and the glucose content is 0.6% as detected by HPLC. The saccharified sweet potato dregs were mixed with water, finely pulverized, passed through a 120-mesh sieve, and dried to ob...

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Abstract

The invention discloses a production method for preparing high maltose syrup and dietary fibers by processing waste residues by means of sweet potato starch. The method comprises the steps of 1, enzyme supplementation and slurry mixing are conducted, wherein alpha-medium temperature amylase is added to potato residues to be mixed to be uniform according to the starch content of the potato residues; 2, gelatinization liquefaction is conducted, wherein uniformly mixed materials are subjected to heating and heat preservation for gelatinization liquefaction; 3, saccharification is conducted, wherein liquefied materials are cooled rapidly, and saccharification is conducted; 4, solid-liquid separation is conducted, wherein filtration is conducted after saccharification is conducted, and saccharified liquid and the potato residues with the starch removed are obtained; 5, the saccharified liquid is subjected to purification, concentration and refining, and the high maltose syrup is obtained; the potato residues with the starch removed are subjected to smashing, screening and drying, and the dietary fibers are obtained. According to the production method for preparing the high maltose syrup and the dietary fibers by processing the waste residues by means of the sweet potato starch, the fresh potato residues are adopted, saccharification is conducted on the starch in the potato residues by means of beta-amylase of the potato residues to produce the high maltose syrup, and the amount of use of enzymes is reduced; meanwhile, the potato residues with the starch removed are further processed to produce the dietary fibers, the production cost is low, the technological process is simplified, the pertinence is high, and the production method is specially suitable for popularization in sweet potato starch production enterprises.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of sweet potato dregs and the field of food processing, and specifically relates to a production method for preparing high maltose syrup and extracting dietary fiber by using sweet potato dregs as raw materials and using its own β-amylase. Background technique [0002] Maltose syrup is a kind of starch sugar, and its main component is maltose. According to the mass fraction of maltose in the total sugar, maltose syrup can be divided into maltose syrup and high maltose syrup. More than 50% maltose mass fraction can be called maltose syrup, and maltose mass fraction higher than 70% can be called high maltose syrup. Maltose has low sweetness, good hygroscopicity, metabolism without insulin, and will not cause blood sugar to rise. It is suitable for diabetics, surgical patients and other patients. It can also be used as a food sweetener and is suitable for making lightly sweet foods. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/22C12P19/12A23L29/30A23L33/22
CPCA23V2002/00C12P19/12C12P19/22C13K7/00A23V2250/5118A23V2250/5116
Inventor 赵祥颖张立鹤刘建军杨丽萍田延军张家祥赵晨
Owner SHANDONG FOOD & FERMENT IND RES & DESIGN INST
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