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103
The invention discloses a tea fungus synthesized bacterial cellulose pressure sore dressing
as well as a preparation method and the application thereof. The tea fungus synthesized
bacterial cellulose pressure sore dressing is a tea fungus synthesized bacterial cellulose
membrane, and the cellulose component is mainly formed by secretion and synthesis
of tea fungus strains in the fermentation culturing process in a sugar tea culture medium
containing carboxymethyl chitosan; the water absorption rate of the dressing is
89-94.3%, the porosity is 85-91.2%, and the water vapor transmission rate is between
1,383.5 g.m.d and 1,486.5 g.m.d. According to the invention, since
the nano bacterial cellulose pressure sore dressing is prepared with a sugar tea fermentation
method by adopting the tea fungus, the method for synthesis of bacterial cellulose
has the advantages of low cost, low environment requirement for synthesis sites and simple
technical requirements; the nano bacterial cellulose material has favorable biosecurity
and histocompatibility, which cannot cause stimulation and sensitization to a wound
surface, and is conducive to the promotion of wound healing.
A synthesis of the bacterial cellulose Kombucha pressure sores dressing, characterized in
that: a Kombucha synthetic bacterial cellulose membrane, cellulose component mainly
composed of Kombucha strains containing carboxymethyl chitosan sugar tea culture
The fermentation process of secretion synthesis; 89~94.3% water absorption of the dressing,
85~91.2% porosity, the water vapor transmission rate of 1435 ± 51.5 _2 1-1g.m.α ο
2.- kinds of bacterial cellulose synthesis Kombucha pressure sores dressing preparation,
characterized by: comprising the steps of: Cl) in accordance with the percentage by
weight containing 0.5 ^ 2 percent of black or green tea, 1 (Γ20% sucrose or glucose was
added distilled water containing 500mL beaker, boil 5 to 15 minutes, cooled to room temperature
to obtain a solution I; (2) the above step (I) prepared solution I was filtered, the
residue after removal of the tea leaves were added relative by weight or volume percentage
in the final contents were 0.5~lwt%, 0.5~1% ν / ν, 0.5~lwt% and 0.5~lwt% of yeast,
alcohol, carboxymethyl chitosan and peptone, stirring to dissolve, too Solution II; (3) in
the above step (2) was II by double-distilled water, f 5% of the total volume of acetic acid
solution and PH value is adjusted separately and 4.5~5.5 IL, pasteurization sterilization
20 ~ 30 minutes; (4) The above steps basal medium (3) is poured into a freshly prepared
to fly with 3 layers of clean gauze, clean container ventilation, adding kombucha mother
plant, 30 ° C temperature, clean environment 7 to 10 days under stationary culture; (5)
In achieving the above step incubation time (4), the gas in the medium - liquid interface
translucent, gelatinous film carefully removed, the film is Kombucha synthetic bacterial
cellulose membrane, the Kombucha synthetic bacterial cellulose film was rinsed with
distilled water three times, each time 1 (Γ15 minutes to remove the residual impurities
media and film; (6) The above steps Bacterial cellulose membrane (5) in the gel was
immersed in synthetic `Kombucha molar concentration of 0.05, NaOH solution .1M in
boiling 15 ~ 20 minutes to further remove the residual bacterial membrane components
and other impurities; (7) The kombucha synthetic bacterial cellulose membrane (6) tre-