Kinetic aspects of bacterial cellulose formation in nata-de-coco culture system

被引：83

作者：

Budhiono, A

Rosidi, B

Taher, H

Iguchi, M

机构：

[1] IRDABI, Bogor 16122, Indonesia

[2] Natl Inst Mat & Chem Res, NIMC, Tsukuba, Ibaraki 3058565, Japan

来源：

CARBOHYDRATE POLYMERS | 1999年 / 40卷 / 02期

关键词：

cellulose formation; nata-de-coco system;

D O I：

10.1016/S0144-8617(99)00050-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The process of cellulose formation in a nata-de-coco culture system has been investigated. The medium was prepared with coconut-water by adding sugar and N-compounds and the culture was conducted in static conditions. The growth of gel thickness, wet weight and dry weight was almost independent of the concentrations of N-compound and sugar at least when they were above 0.1 and 1%, respectively, suggesting that the process was controlled by oxygen supply. Glucose was the only saccharide found in the coconut water stored for 3 days. While the concentration of sugar dropped quickly to a certain level and decreased monotonically with time, a part of glucose turned to something other than cellulose. No fructose was found after the initial stage, presumably being consumed by side-reactions. Computer simulation showed that, after the induction time, the process of cellulose formation or the consumption of glucose is controlled by the diffusion of atmospheric oxygen. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：137 / 143

页数：7

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