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公开(公告)号：US20210332157A1
公开(公告)日：2021-10-28
申请号：US17010808
申请日：2020-09-02
发明人： Ping Shao , Peiyu Qian , Jiefeng Pan , Peilong Sun
摘要： A method for extracting and purifying Dendrobium officinale polysaccharides comprises following steps: (1) fully disperse Dendrobium officinale powder in pure water to obtain crude liquid; (2) removing insoluble impurities from the crude liquid through a microfiltration membrane to obtain permeate 1 and retentate 1; (3) performing macroporous ultrafiltration treatment of the permeate 1 and collect permeate 2 and retentate 2; (4) adding an aqueous solution of edible alkali metal inorganic salt to the retentate 2, fully stirring and dissolving to obtain polysaccharide crude liquid, performing macroporous ultrafiltration treatment and collecting permeate 3 and retentate 3; (5) combining the permeate 2 and permeate 3, adding the combined permeate into an electrodialysis device for desalination, and collecting dilute solution and concentrated solution; (6) performing microporous ultrafiltration treatment of the dilute solution and collect retentate 4 and permeate 4; (7) carrying out freeze-drying of the retentate 4 to obtain Dendrobium officinale polysaccharides.
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公开(公告)号：US20200368168A1
公开(公告)日：2020-11-26
申请号：US16419323
申请日：2019-05-22
发明人： Ping Shao , Ben Niu , Ligang Jiang
IPC分类号： A61K9/48 , A23L33/11 , A23P10/30 , A23L29/231 , A23L29/294 , B01J2/02
摘要： This invention provides a method for preparing electrospraying particles to improve stability of polyphenol including the following steps: preparing a pectin-silica composite; adding polyphenolic compounds into the pectin-silica composite to prepare a core solution; and coaxial electrospraying the core solution and a shell solution to prepare electrospraying particles loaded polyphenol. This method utilizes a pectin-silica composite as a polyphenol loading carrier, improves the encapsulating efficiency of polyphenols, reduces the contact probability of polyphenols with oxygen and water, and improves the stability of polyphenols; and an acidic aqueous solution is used as a shell solution to synergize with the pectin-silica composite to further improve the stability of polyphenols.
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公开(公告)号：US11780936B2
公开(公告)日：2023-10-10
申请号：US17010808
申请日：2020-09-02
发明人： Ping Shao , Peiyu Qian , Jiefeng Pan , Peilong Sun
CPC分类号： C08B37/0003 , B01D61/145 , B01D61/146 , B01D61/147 , B01D61/422 , B01D61/58 , B01D69/02 , B01D2311/12 , B01D2317/025 , B01D2325/20
摘要： A method for extracting and purifying Dendrobium officinale polysaccharides comprises following steps: (1) fully disperse Dendrobium officinale powder in pure water to obtain crude liquid; (2) removing insoluble impurities from the crude liquid through a microfiltration membrane to obtain permeate 1 and retentate 1; (3) performing macroporous ultrafiltration treatment of the permeate 1 and collect permeate 2 and retentate 2; (4) adding an aqueous solution of edible alkali metal inorganic salt to the retentate 2, fully stirring and dissolving to obtain polysaccharide crude liquid, performing macroporous ultrafiltration treatment and collecting permeate 3 and retentate 3; (5) combining the permeate 2 and permeate 3, adding the combined permeate into an electrodialysis device for desalination, and collecting dilute solution and concentrated solution; (6) performing microporous ultrafiltration treatment of the dilute solution and collect retentate 4 and permeate 4; (7) carrying out freeze-drying of the retentate 4 to obtain Dendrobium officinale polysaccharides.
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公开(公告)号：US11464746B2
公开(公告)日：2022-10-11
申请号：US16419323
申请日：2019-05-22
发明人： Ping Shao , Ben Niu , Ligang Jiang
IPC分类号： A61K36/00 , A61K9/48 , A23L33/11 , A23P10/30 , A23L29/294 , B01J2/02 , A23L29/231
摘要： This invention provides a method for preparing electrospraying particles to improve stability of polyphenol including the following steps: preparing a pectin-silica composite; adding polyphenolic compounds into the pectin-silica composite to prepare a core solution; and coaxial electrospraying the core solution and a shell solution to prepare electrospraying particles loaded polyphenol. This method utilizes a pectin-silica composite as a polyphenol loading carrier, improves the encapsulating efficiency of polyphenols, reduces the contact probability of polyphenols with oxygen and water, and improves the stability of polyphenols; and an acidic aqueous solution is used as a shell solution to synergize with the pectin-silica composite to further improve the stability of polyphenols.
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