Process of extracting flavone from side product of orange processing
A by-product, citrus technology, applied in sugar derivatives, pharmaceutical formulations, plant raw materials, etc., can solve the problems of long production time, little extraction and utilization, and no classification, to improve efficiency, improve extraction efficiency, reduce The effect of production costs
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Embodiment 1
[0017] Embodiment 1, a kind of method for extracting flavonoids from citrus processing by-products, carries out following steps successively:
[0018] 1) Preparation of raw materials: drying the citrus by-product (citrus peel) at 55° C., pulverizing, passing through a 40-60 mesh sieve to obtain the pulverized product.
[0019] 2) Extraction: put 0.5kg of pulverized material and 3L of 80% ethanol solution into an extraction kettle, and extract for 15min at a pressure of 10Mpa and a temperature of 70°C. After the extraction is completed, filter to obtain a supernatant; concentrate the supernatant in vacuo to obtain a crude extract.
[0020] 3) Primary separation: Suspend and dissolve 6 g of the above crude extract in 400 mL of water to form a suspension for later use.
[0021] Take the treated polyamide resin (60-80 mesh) and wet pack it into a column (1 cm inner diameter) with 95% ethanol, and the column volume is 30 mL. First use ethanol to flow and wash the column until the...
Embodiment 2
[0026] Embodiment 2, a method for extracting flavonoids from citrus processing by-products, the following steps are carried out successively:
[0027] 1) Preparation of raw materials: drying the citrus by-product (huyou peel) at 60° C. and then pulverizing it, passing through a 40-60 mesh sieve to obtain the pulverized product.
[0028] 2) Extraction: put 0.5kg of pulverized material and 5L of 85% ethanol solution into an extraction kettle, and extract at a pressure of 15Mpa and a temperature of 60°C for 10min. After the extraction is completed, filter to obtain a supernatant; concentrate the supernatant in vacuo to obtain a crude extract.
[0029] 3) Primary separation: Suspend and dissolve 7.5 g of the above crude extract with 1000 mL of water to form a suspension for later use.
[0030] Take the treated polyamide resin (60-80 mesh) and wet pack it into a column (inner diameter 2.5 cm) with 95% ethanol, and the column volume is 100 mL. First use ethanol to flow and wash th...
Embodiment 3
[0034] Embodiment 3, a kind of method for extracting flavonoids from citrus processing by-products, carries out following steps successively:
[0035] 1) Raw material preparation: the by-products of citrus processing (a mixture of citrus peels, meridians and processed orange pomace, etc.) are dried at 50° C., then pulverized, and passed through a 40-60 mesh sieve to obtain a pulverized product.
[0036] 2) Extraction: put 0.5kg of pulverized material and 2.5L of 75% ethanol solution into an extraction kettle, and extract for 12min at a pressure of 6Mpa and a temperature of 80°C. After the extraction is completed, filter to obtain a supernatant; concentrate the supernatant in vacuo to obtain a crude extract.
[0037] 3) Primary separation: Suspend and dissolve 2 g of the above crude extract in 400 mL of water to form a suspension for later use.
[0038] Take the treated polyamide resin (60-80 mesh) and wet pack it into a column (1 cm inner diameter) with 95% ethanol, and the c...
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