Fermentation technology for producing calcium lactate with sweet potatoes as raw material
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A production process and technology of calcium lactate, applied in the directions of fermentation, microorganism-based methods, microorganisms, etc., can solve the problems of high cost, environmental pollution, time-consuming and labor-intensive, etc., and achieve the effects of low production cost, high product yield, and simple process.
Inactive Publication Date: 2011-10-05
XIAOGAN KAIFENG BIOENG
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[0006] The purpose of the present invention is to provide an efficient, economical and suitable for large-scale production of fermented potatoes with dried potatoes as raw material for the problems and shortcomings of the above-mentioned calcium lactate production, such as poor quality, time-consuming and labor-intensive, environmental pollution, and high cost. Process for producing calcium lactate
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Embodiment 1
[0020] 1. Take out a kind of Lactobacillus acidophilus (Lactobacillus acidophilus, strain number: kaif6006) preserved at low temperature, thaw it at room temperature, and insert it into 100ml lactic acid strain culture medium. The strain culture medium composition is: 5 ° Bé Add 0.5% yeast extract, 0.6% sterile calcium carbonate, 1.5-2.0% agar to the wort, pH6.8. After maintaining the temperature in the incubator at 48-50°C for 6 hours, add an appropriate amount of CaCO 3 , keep the pH value of the culture medium at 5.5-6.0, ferment for 24-28 hours, and then gradually expand the culture to 500mL, 3000mL, 25L until 2000L strain tank according to the above steps.
[0021] 2. At 50m 3 In the fermentation tank, add 3 / 4 of the canned amount of dried potato hydrolyzed sugar solution made by liquefaction and saccharification, the concentration of the sugar solution is 15%, keep the temperature at 48-50°C, add 5% wheat bran, and make the fermentation liquid .
[0022] 3. Expand the...
Embodiment 2
[0026] 1. Take out a kind of Lactobacillus delbrueckii subsp (Lactobacillus delbrueckii subsp, strain number: kaif6004) preserved at low temperature, thaw it at room temperature, and insert it into 100ml lactic acid strain culture medium. The strain culture medium is composed of casein peptone 10.0g, beef extract 10.0g, yeast powder 5.0g, glucose 5.0g, sodium acetate 5.0g, diamine citrate 2.0g, Tween801.0g, K 2 HPO 4 2.0g, MgSO 4 ·7H 2 O0.2g, MnSO 4 ·H 2 O 0.05g, CaCO 3 20.0g, 15.0g agar, 1.0L distilled water, pH 6.8. After maintaining the temperature in the incubator at 48-50°C for 6 hours, add an appropriate amount of CaCO 3 , keep the pH value of the culture medium at 5.5-6.0, ferment for 24-28 hours, and then gradually expand the culture to 500mL, 3000mL, 25L until 2000L strain tank according to the above steps.
[0027] 2. At 50m 3 In the fermenter, add 3 / 4 of the canned amount of dried potato hydrolyzed sugar solution produced by liquefaction and saccharificatio...
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Abstract
The invention relates to a fermentation technology for producing calcium lactate with sweet potatoes as the raw material, comprising the steps of: taking sweet potatoes as the raw material to produce a fermentation broth of amylum hydrolysate of the sugar, inoculating lactobacillus strains which undergo the optimized selection operation into the fermentation broth of amylum hydrolysate of the sugar, adding a calcium carbonate neutralizer, fermenting for 48-72 hours to produce a calcium lactate fermentation broth, followed by decolouring, filtering, condensation, filmmaking, drying and crushing to produce the calcium lactate product. The technology provided by the invention comprises a strain selection process, a strain enlarge culture process, a sweet potato broth preparation process, a fermentation process and a refining process. The invention has the following beneficial effects: strains of high conversion rate are adopted for the optimized selection operations; sweet potatoes are used as the raw material to produce calcium lactate with no discharge of mother liquors and solid wastes during the whole production process; the process of making the fermentation broth into lactic acid to further produce calcium lactate is reduced; grains are not used as the raw material during the production process so as to avoid the competition between industrial production and human for grains; and the technology provided by the invention is simple, has advantages of energy saving and emission reduction, high product yield and low production cost, and is suitable for large scale production.
Description
technical field [0001] The invention belongs to the technical field of calcium lactate production, and in particular relates to a production process for fermenting and producing calcium lactate from dried potatoes. Background technique [0002] Calcium lactate is a calcium nutrition enhancer with the molecular formula (C 6 h 10 o 6 Ca), because there is an asymmetric carbon atom in the calcium lactate molecule, there are two isomerisms of L-calcium lactate and D-calcium lactate, and industrial products are generally L-calcium lactate (left-handed) and DL-lactic acid Calcium (racemization), its appearance is white powder or granules, slightly bitter taste, easily soluble in water, used in food, beverage, medicine, feed and other fields, mainly used to supplement calcium, with high calcium content, easy absorption, With the advantages of good safety and wide application range, the main methods for the production of calcium lactate are as follows: [0003] 1. Fermentation c...
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