公开(公告)号：US20110281307A1

公开(公告)日：2011-11-17

申请号：US13142396

申请日：2010-06-02

申请人： Baoyi Yang ,  Binghua Wu ,  Huaiyuan Xu ,  Zhengxue Zhu ,  Yubin Shen ,  Xuegang Wang ,  Liqiang Yang ,  Jialiang Wang ,  Wenhui Jiang ,  Shengqiang Bao ,  Xiaolin Sheng ,  Xiaoqin Shen

发明人： Baoyi Yang ,  Binghua Wu ,  Huaiyuan Xu ,  Zhengxue Zhu ,  Yubin Shen ,  Xuegang Wang ,  Liqiang Yang ,  Jialiang Wang ,  Wenhui Jiang ,  Shengqiang Bao ,  Xiaolin Sheng ,  Xiaoqin Shen

IPC分类号： C12P19/04

CPC分类号： C12P19/04 ,  C08B37/006

摘要： The present invention relates to a post extraction process for preparing low acyl gellan, comprising the steps: deacylation treatment of gellan gum-containing fermentation broth, enzyme treatment, flocculation of low acyl gellan gum with divalent or polyvalent metal cations, clarification treatment of gellan gum solution, dehydration treatment of gellan gum solution, removal of divalent or polyvalent cations and decoloration, and drying and milling. Preferably, the process comprises the step of formulating a proper amount of chelating agent/acid system before the drying and milling step to chelate the added additional divalent cations added during the use of gellan gum, and at the same time to keep the pH value in a relatively stable condition. The present invention also provides the various low acyl gellan gums prepared by the above methods. The product has the following characteristics: a good appearance, a high transmittancy, and high gel strength. In particular, the chromaticity of the product is above 83%, the transmittancy is above 85%, and the gel strength is above 400 g/cm2.

摘要翻译： 本发明涉及一种制备低酰基结冷胶的后萃取方法，包括以下步骤：含有结冷胶的发酵液的脱酰基处理，酶处理，低级酰基结兰兰胶与二价或多价金属阳离子的絮凝，澄清处理吉兰糖 溶液，结冷胶的脱水处理，二价或多价阳离子的去除和脱色，以及干燥和研磨。 优选地，该方法包括在干燥和研磨步骤之前配制适量的螯合剂/酸系的步骤，以螯合在使用结冷胶中加入的添加的另外的二价阳离子，并同时将pH值保持在 一个比较稳定的条件。 本发明还提供了通过上述方法制备的各种低酰基结冷胶。 该产品具有以下特点：外观美观，透光率高，凝胶强度高。 特别是，产品的色度高于83％，透光率高于85％，凝胶强度高于400g / cm 2。

公开(公告)号：US08609377B2

公开(公告)日：2013-12-17

申请号：US13142396

申请日：2010-06-02

申请人： Baoyi Yang ,  Binghua Wu ,  Huaiyuan Xu ,  Zhengxue Zhu ,  Yubin Shen ,  Xuegang Wang ,  Liqiang Yang ,  Jialiang Wang ,  Wenhui Jiang ,  Shengqiang Bao ,  Xiaolin Sheng ,  Xiaoqin Shen

发明人： Baoyi Yang ,  Binghua Wu ,  Huaiyuan Xu ,  Zhengxue Zhu ,  Yubin Shen ,  Xuegang Wang ,  Liqiang Yang ,  Jialiang Wang ,  Wenhui Jiang ,  Shengqiang Bao ,  Xiaolin Sheng ,  Xiaoqin Shen

IPC分类号： C08B37/00

CPC分类号： C12P19/04 ,  C08B37/006

摘要： The present invention relates to a post extraction process for preparing low acyl gellan, comprising the steps: deacylation treatment of gellan gum-containing fermentation broth, enzyme treatment, flocculation of low acyl gellan gum with divalent or polyvalent metal cations, clarification treatment of gellan gum solution, dehydration treatment of gellan gum solution, removal of divalent or polyvalent cations and decoloration, and drying and milling. Preferably, the process comprises the step of formulating a proper amount of chelating agent/acid system before the drying and milling step to chelate the added additional divalent cations added during the use of gellan gum, and at the same time to keep the pH value in a relatively stable condition. The present invention also provides the various low acyl gellan gums prepared by the above methods. The product has the following characteristics: a good appearance, a high transmittancy, and high gel strength. In particular, the chromaticity of the product is above 83%, the transmittancy is above 85%, and the gel strength is above 400 g/cm2.

摘要翻译： 本发明涉及一种制备低酰基结冷胶的后萃取方法，包括以下步骤：含有结冷胶的发酵液的脱酰基处理，酶处理，低级酰基结兰兰胶与二价或多价金属阳离子的絮凝，澄清处理吉兰糖 溶液，结冷胶的脱水处理，二价或多价阳离子的去除和脱色，以及干燥和研磨。 优选地，该方法包括在干燥和研磨步骤之前配制适量的螯合剂/酸系的步骤，以螯合在使用结冷胶中加入的添加的另外的二价阳离子，并同时将pH值保持在 一个比较稳定的条件。 本发明还提供了通过上述方法制备的各种低酰基结冷胶。 该产品具有以下特点：外观美观，透光率高，凝胶强度高。 特别是，产品的色度高于83％，透光率高于85％，凝胶强度高于400g / cm 2。