Production method for extracting glucoside type seabuckthorn flavones from sea-buckthorn leaf
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A technology of seabuckthorn flavonoids and production methods, which is applied in the fields of application, food preparation, food science, etc., can solve the problems of large proportion of flavonoids, etc., and achieve the effects of high extraction rate, no toxic solvent residue, and short extraction cycle
Active Publication Date: 2012-01-11
XINJIANG KEYU TECH
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The only difference is that the aglycon-type flavonoids in seabuckthorn pulp have a relatively large proportion, while seabuckthorn flavonoids are mainly glycoside-type flavonoids in leaves, and the method of extracting flavonoids from seabuckthorn leaves has not yet been disclosed.
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[0014] The present invention will be further described below in combination with specific embodiments.
[0015] Seabuckthorn leaves are pretreated including pulping, added with ethanol, subjected to ultrasonic extraction, and then subjected to low-temperature separation of the extract, recovery of ethanol, and drying of effective substances.
[0016] Specifically, the fallen seabuckthorn leaves are sorted, soaked in tap water for 20 minutes and washed 3 times, then dehydrated by a centrifuge, put into a drying room at 60°C, and dried for 24 hours for later use. Take 10kg of dry leaves and grind them with a pulverizer, soak the powder with 20kg of tap water for 20min, and send it to a refiner for pretreatment under stirring; then inject the slurry into an ultrasonic reactor, and add 150kg of 95% edible ethanol, The input power is 200W, 25kHz intermittent working mode ultrasonic, the working and stopping time are both set to 2min, the temperature of the reactor is kept at 45°C, ...
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Abstract
The invention discloses a production method for extracting glucoside type seabuckthorn flavones from sea-buckthorn leaves and the method comprises the following steps: carrying out pre-processed machining, such as cleaning, jordaning and the like to fresh sea-buckthorn leaves or picked fallen leaves; taking ethanol as solvent; and under the action of ultrasonic wave, further breaking plant cells to release glucoside type seabuckthorn flavones-Isorhamnetin, wherein the extraction ratio is 95.6%. Compared with the traditional method, the production method disclosed by the invention has the advantages of low temperature, constant pressure, no toxic solvent residue, low energy consumption, short extraction period and high extraction efficiency, does not damage or degrade effective ingredientsand is suitable for mass production; and the additional value of agricultural products is improved.
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technical field [0001] The invention relates to the technical field of international patent classification A23L food processing and extraction methods, in particular to a production method for extracting glycoside-type seabuckthorn flavonoids from seabuckthorn leaves. Background technique [0002] Sea buckthorn is also known as vinegar willow and sour thorn. Juice contains a variety of vitamins, amino acids, trace elements and flavonoids. The fruit of seabuckthorn can treat burns, intractable ulcers, frostbite, lacerations, skin surface ulcers, intractable ulcers, extracts, seabuckthorn tablets, extracts, etc. can also treat gastric ulcers, tracheitis, bedsores, etc., as well as prevent and treat Occupational sexually transmitted diseases such as lead, phosphorus, and benzene have certain curative effects on indigestion, subcutaneous bleeding, and irregular menstruation. Formula or decoction can also treat cough, phlegm, lung abscess, tuberculosis and so on. The seeds are...
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