Method for extracting carbon source from kitchen solid residues through enzymic method
An enzymatic extraction and cooking technology, applied in chemical instruments and methods, solid waste removal, special compound water treatment, etc., can solve problems such as environmental hazards, poor system stability, toxic and harmful substances, etc. The effect of alleviating short supply and improving stability
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[0051] Example 1
[0052] Analyze the ingredients of the kitchen solid residue raw materials (the solid residue obtained from the kitchen waste of a company in Zhangjiagang after pretreatment such as mechanical sorting, pulping, and three-phase separation). The solid residue is mainly composed of crude protein, carbohydrates, and crude fat It is composed of other impurities. Other impurities are mainly crude fiber, as shown in Table 1 below:
[0053] Table 1 The main components of the kitchen (g / 100g dry weight)
[0054]
[0055] An enzymatic method for extracting carbon sources in solid residue figure 1 Shown), including the following steps:
[0056] (1) Pretreatment: Put the raw materials of kitchen solid residue into a mortar and grind for about 5 minutes. After grinding and crushing, the average particle size of the solid residue is about 99.19μm; then put the crushed solid residue into an Erlenmeyer flask. Seal with a sealing film, and sterilize it in a high-temperature steriliz...
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[0065] Example 2 Optimization of the ratio of enzymes
[0066] The mass ratio of the intermediate temperature α-amylase to amyloglucosidase in Example 1 was adjusted as shown in Table 2, and other parameters were kept the same as in Example 1, to obtain the carbon source extract. Perform performance test on the obtained carbon source extract, and the test results are shown in Table 2:
[0067] Table 2 Performance test of the carbon source extract obtained by the mass ratio of different intermediate temperature α-amylase and amyloglucosidase
[0068]
Example Embodiment
[0069] Example 3 Optimization of pH
[0070] The pH of Example 1 was adjusted as shown in Table 3, and other parameters were kept consistent with Example 1, to obtain a carbon source extract. Perform performance test on the obtained carbon source extract, and the test results are shown in Table 3:
[0071] Table 3 Performance test of carbon source extract obtained at different pH
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