20.500.12556/RUL-135870 Properties of bacterial cellulose produced using white and red grape bagasse as a nutrient source The purpose of the study is to investigate the possibility of using wine industry wastes, such as red and white grape bagasse, to produce bacterial cellulose (BC) instead of using a costly commercial medium. BC was produced using grape bagasse as a carbon source replacement and the sole nutrient in the medium. The BC films were evaluated for their productivity and waterholding capacity. The BC films were also investigated for their morphology using scanning electron microscopy (SEM), their viscoelastic properties using dynamic mechanical analysis (DMA), and their chemical composition using Fourier-transform infrared spectroscopy (FTIR). Although the use of grape bagasse as the sole nutrient was successful in the preparation of BC, the BC films had inferior viscoelastic properties to other produced BC films. White grape bagasse proved to be an excellent carbon substitute as the production of BC and its water-holding capacity were five times higher and the produced BC films were up to 72% more flexible than the bacterial cellulose produced using standard HS medium. bacterial cellulose wine waste red grape bagasse white grape bagasse properties vinogradništvo bakterijska celuloza vinski odpadki vinski sedimenti sediment rdečega vina sediment belega vina lastnosti true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-30 15:14:21 2022-03-30 15:14:21 2022-09-15 04:12:32 0000-00-00 00:00:00 2021 0 0 15 str. iss. 7, art. 1088 Vol. 9 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.8 2227-9717 10.3390/pr9071088 68226819 RAZ_Ogrizek_Linda_2021.pdf RAZ_Ogrizek_Linda_2021.pdf 1 6A476824BCBBCEF703D38060C27E8ED4 2fa74076d058d1186eaf5c2532ed246adf44c38e1bf64ee5f31fbf41af9d64eb 96676517-b02b-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155041 https://www.mdpi.com/2227-9717/9/7/1088 1 4ba29647-b02b-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=155040 Naravoslovnotehniška fakulteta 0 0 0