Process for extracting chlorogenic acid and dye from honeysuckle leaf
A technology of honeysuckle leaves and chlorogenic acid is applied in the fields of honeysuckle extraction of chlorogenic acid and honeysuckle chlorophyll, tannin pigment dyes, development and reuse of Chinese herbal medicine plants, and flavonoids, which can solve the problems of large hidden dangers and isomerization of chlorogenic acid. Loss, energy consumption and other problems, to achieve the effect of slow resin separation, solve instability problems, and improve yield and quality
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Embodiment 1
[0014] Take the fresh leaves of honeysuckle—cleaning—hot air drying at 45°C~55°C—crushing to 40~60 mesh—extraction with ethanol pure water mixed solvent at 25°C~55°C—microfiltration to remove impurities and bacteria—ultrafiltration to intercept the concentrated solution in vacuum and dry with ethanol Water reuse—nanofiltration intercepts the concentrated solution and vacuum-dries it, and ethanol pure water for reuse.
Embodiment 2
[0016] Take the fresh leaves of honeysuckle—cleaning—hot air drying at 47°C~53°C—crushing to 42~58 mesh—extraction with ethanol pure water mixed solvent at 27°C~53°C—microfiltration to remove impurities and bacteria—ultrafiltration to intercept the concentrated solution in vacuum and dry with ethanol Water reuse—nanofiltration intercepts the concentrated solution and vacuum-dries it, and ethanol pure water for reuse.
Embodiment 3
[0018] Take the fresh leaves of honeysuckle—cleaning—hot air drying at 49°C~51°C—crushing to 44~6 meshes—extraction with ethanol pure water mixed solvent at 29°C~50°C—microfiltration to remove impurities and bacteria—ultrafiltration to intercept the concentrated solution in vacuum and dry it with ethanol Water reuse—nanofiltration intercepts the concentrated solution and vacuum-dries it, and ethanol pure water for reuse.
[0019] The low-temperature operation process of the present invention solves the instability problem of chlorogenic acid at high temperature and improves the yield and quality of chlorogenic acid.
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