Method for preparing acetylated-modified bacterial cellulose aerogel oil-absorbent material
A technology of bacterial cellulose and bacterial cellulose membrane is applied in the field of preparation of acetylated modified bacterial cellulose aerogel oil-absorbing materials, and achieves the effects of high affinity, regular microstructure and fine diameter
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[0029] Specific embodiment 1: In this embodiment, bacterial cellulose microfibrils are used for acetylation modification, and then dissolved to form a bacterial cellulose hydrogel, and then a bacterial cellulose aerogel is prepared. The prepared bacterial cellulose is acetylated modified bacterial cellulose Aerogels can be used as oil-absorbing materials for marine oil spills. The specific steps are as follows:
[0030] 1. Cultivation of bacterial cellulose
[0031] (1) Kombucha liquid subculture medium: the medium is composed of agar, the carbon source is glucose, the nitrogen source is yeast powder and tryptone; the ratio is glucose 5g, yeast powder 1g, agar 2g, CaCO 3 2g, 100ml deionized water, adjust the pH of the medium to 6.8. Scrub the jar with alcohol twice, then boil it in boiling water for two minutes to remove as much bacteria and detergent alcohol as possible to prevent Acetobacter xylinum from being contaminated.
[0032] (2) Kombucha is subcultured with bacter...
Example Embodiment
[0041] Specific embodiment 2: In this embodiment, the acetylated bacterial cellulose aerogel oil-absorbing material is prepared according to the following steps:
[0042] 1. Cultivation of bacterial cellulose
[0043] (1) Kombucha liquid subculture medium: the medium is composed of agar, the carbon source is glucose, the nitrogen source is yeast powder and tryptone; the ratio is glucose 5g, yeast powder 1g, agar 2g, CaCO 3 2g, 100ml deionized water, adjust the pH of the medium to 7.0. Scrub the jar with alcohol twice, then boil it in boiling water for two minutes to remove as much bacteria and detergent alcohol as possible to prevent Acetobacter xylinum from being contaminated.
[0044] (2) Kombucha is subcultured by bacterial liquid, an appropriate amount of the bacterial liquid is taken from the Kombucha liquid (purchased from Probiotics Family), and 20% of the inoculum is inoculated into 100 mL fermentation medium, and cultured at 35°C for 7 days.
[0045] (3) Pick the...
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