Effects of processing conditions on physicochemical properties of bacterial cellulose pellicle

doi:10.3969/j.issn.1004-1524.2018.04.19

›› 2018, Vol. 30 ›› Issue (4): 661-665.DOI: 10.3969/j.issn.1004-1524.2018.04.19

• Food Science • Previous Articles Next Articles

Effects of processing conditions on physicochemical properties of bacterial cellulose pellicle

YANG Ying, TANG Weimin, LU Shengmin^*

Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China

Received:2017-07-03 Online:2018-04-20 Published:2018-04-19

Abstract

Abstract: In order to explore the stability of self-produced bacterial cellulose (BC) pellicle, the gel produced by Gluconacetobacter intermedius CIs26 in citrus dregs media was chosen as research material. Effects of different processing conditions (pH, NaCl concentration, heating, and freeze) on the physicochemical properties of BC gel, including moisture content, water holding capacity, hardness, flavone content and color, were investigated. The results revealed that BC gel possessed good color stability, and its water content was hardly affected by pH. The pellicle showed the highest water-holding capacity in alkaline condition and the biggest hardness in acidic condition. With increased NaCl concentration, water holding capacity, moisture and flavone contents of BC gel were all reduced, whereas its hardness was increased at first but decreased subsequently. The water holding capacity and hardness of samples were enhanced after being frozen at -18 ℃ for 24 h. Generally speaking, BC gel could maintain good physicochemical properties under different experimental conditions, suggesting promising application potential.

Key words: bacterial cellulose, gel, physicochemical properties, water holding capacity, hardness

CLC Number:

TS201

YANG Ying, TANG Weimin, LU Shengmin. Effects of processing conditions on physicochemical properties of bacterial cellulose pellicle[J]. , 2018, 30(4): 661-665.

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Effects of processing conditions on physicochemical properties of bacterial cellulose pellicle

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