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    題名: Conversion of squid pens to chitosanases and dye adsorbents via Bacillus cereus
    作者: San-Lang Wang;Hao-Ting Yu;Min-Hsiung Tsai;Chien Thang Doan;Van Bon Nguyen;Van Chung Do;Anh Dzung Nguyen
    關鍵詞: Chitosanase;Chitin;Adsorbent;Colorant;Dye;Squid pens;Bacillus cereus
    日期: 2018-02
    上傳時間: 2018-03-02 12:14:54 (UTC+8)
    出版者: Springer
    摘要: The purpose of this study was to reclaim squid pens for the production of
    chitosanases and biosorbents of food colorants and industrial dyes via Bacillus
    cereus fermentation. B. cereus TKU044 produced chitosanases at a high productivity
    of 2.66 U/mL, when squid pens were used as the sole carbon and nitrogen
    source. An extracellular chitosanase, with a molecular weight of 43 kDa, was
    purified 286-fold with a 16% activity yield. TKU044 and five other chitosanaseproducing
    strains of B. cereus have been used as biosorbents to investigate their
    adsorption capacity on 0.025% (w/v) of colorants and dyes. For colorants, only Red
    7 was adsorbed by the five B. cereus cells, whereas all tested B. cereus strains
    showed adsorption effects with the dyes. The adsorption of Yellow 4 by squid pens
    before and after 1 day of fermentation by B. cereus was also studied.
    關聯: Research on Chemical Intermediates 44(8), pp.4903-4911
    DOI: 10.1007/s11164-018-3343-y
    顯示於類別:[化學學系暨研究所] 期刊論文

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