Citrus peel pomace comprehensive utilization method
A technology of citrus peels and citrus peels, which is applied in the field of comprehensive utilization of citrus peels, can solve the problems of high equipment and operation level requirements, difficult recovery of organic reagents, cumbersome steps, etc., and achieve safe, non-toxic and side effects, effective recovery, and equipment simple effect
Active Publication Date: 2020-09-04
重庆西南果品营养研究院 +1
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Problems solved by technology
Among them, silica gel column chromatography is a traditional method for separating and purifying PMFs, but the steps are cumbersome, the organic reagents are difficult to recover, and time-consuming and energy-consuming
High-speed countercurrent chromatography (HSCCC) has good separation effect and high product quality, but it requires high equipment and operation level and is difficult to master
Macroporous adsorbent resins are widely used due to their high adsorption / desorption capacity and low cost, but the safety of MAR in food and pharmaceutical industries remains to be considered
Method used
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Embodiment 1
[0052]The concentrated specific gravity of embodiment 1 is 1.1; the concentrated specific gravity of embodiment 2 is 1.2, the concentrated specific gravity of embodiment 3 is 1.25, the concentrated specific gravity of embodiment 4 is 1.3, and the concentrated specific gravity of embodiment 5 is 1.35.
[0053] S2: the preparation of citrus peel carbon, specifically comprising the following steps:
[0054] S201: Pulverize the skin dregs and pass through a 60-mesh sieve to obtain skin dregs powder, which is evenly mixed with an activator and deionized water.
[0055] The adopting of activator is: embodiment 1 adopts potassium carbonate, embodiment 2 adopts potassium hydroxide, embodiment 3 and 4 adopt zinc chloride, embodiment 5 adopts phosphoric acid.
[0056] The skin residue powder, activator and deionized water are mixed evenly according to the mass volume ratio of 1:1~5:80~120, wherein the skin residue powder and the activator are measured by mass, and the deionized water is...
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The invention discloses a citrus peel pomace comprehensive utilization method, which comprises the following steps: S301: preparing an adsorption solution, namely dissolving a citrus peel extract withan ethanol solution, filtering to obtain a supernatant, and adjusting the pH value of the supernatant to 5-7; S302: performing adsorption, namely adding adsorption liquid into a container filled withpeel pomace carbon, carrying out oscillation adsorption under a constant-temperature water bath oscillation condition, and after adsorption is completed, filtering to obtain filter residues; S303, carrying out desorption, namely taking an ethanol solution as a desorption solution, desorbing the filter residues, removing Polymethoxyflavones adsorbed on the carbon of the filter residues by washing,filtering, collecting filtrate, and concentrating the obtained filtrate in vacuum to 1 / 5-1 / 15 of the original volume to obtain a concentrated eluent; and S304: cooling and crystallizing, namely adding deionized water into the concentrated eluent, standing and crystallizing at 4 DEG C, and collecting the crystallization product to obtain a polymethoxyflavone mixture. According to the method, the citrus peel pomace is fully utilized, the peel pomace porous carbon is prepared, six PMFs monomers are obtained from the peel pomace extract, and the purity is high.
Description
technical field [0001] The invention relates to the technical field of plant component extraction, in particular to a method for comprehensive utilization of citrus peel residue. Background technique [0002] Citrus processing produces a large amount of pomace. Currently, the main methods of resource utilization and treatment include sanitary landfill treatment, drying for animal feed, extraction of effective active substances, and production of organic fertilizers. Landfill treatment of citrus peels is prone to mildew and odor, causing serious pollution to the environment; processing citrus peels into feed requires a lot of energy, which is unreasonable from both environmental and economic perspectives. The effective active substances extracted are mainly concentrated in cellulose, soluble sugar, essential oil, pigment, pectin, etc., or a single biological active substance is extracted, and the citrus peel is not fully utilized. Citrus peels are rich in polymethoxylated fl...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C07D311/30C07D311/40C01B32/324C01B32/342
CPCC07D311/30C07D311/40C01B32/324C01B32/342Y02P60/87
Inventor 周志钦李真晴陈欣田思宇
Owner 重庆西南果品营养研究院