|
KMID : 1024420220260030195
|
|
Food Engineering Progress
2022 Volume.26 No. 3 p.195 ~ p.202
|
|
|
A Study on the Production and Quality Characteristics of Bacterial Cellulose Film Using Coffee By-Products
|
|
Oh Hae-Won
Lee Seung-Hwan
|
|
|
Abstract
|
|
|
|
This study was carried out to examine the physical characteristics of bacterial cellulose (BC) and its optimal culture condition using coffee by-products. Recently, recycling resources and employing eco-friendly materials have been raised as significant issues in the food industry. As the coffee industry develops, interests and efforts for recycling coffee wastes are also growing. This study attempted to confirm the production of BC by utilizing spent coffee grounds filtrate as a medium. In order to confirm the optimal culture conditions for BC production, different culture methods, initial pH, culture temperature, and culture period were examined. The optimal pH and temperature were 6.0 and 30oC, and the optimal culture period was 14 days. The cultivated BC was dried by hot air drying, freezedrying, and mold drying, respectively. Then, the properties of the BC films, such as tensile strength, elongation, water-solubility, thickness, and chromaticity were compared. The drying method affected the shape and structure of the final BC films. The production of BC film is expected to expand opportunities for recycling coffee by-products and contribute to solving environmental problems caused by food waste.
|
|
|
KEYWORD
|
|
|
spent coffee grounds, spent coffee grounds filtrate medium, bacterial cellulose, Gluconacetobacter xylinus, eco-friendly film
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|