A5000201422- Advanced Cellulose Research Studies
- Nanocomposite Films for Food Packaging
- Biofuel production and bioconversion
- Natural Fiber Reinforced Composites
- Electrospun Nanofibers in Biomedical Applications
- Polysaccharides and Plant Cell Walls
- biodegradable polymer synthesis and properties
- Polysaccharides Composition and Applications
- Enzyme Production and Characterization
- Computational Drug Discovery Methods
- Postharvest Quality and Shelf Life Management
- Lignin and Wood Chemistry
- Food Chemistry and Fat Analysis
- Pickering emulsions and particle stabilization
- Nanoparticles: synthesis and applications
- Botanical Research and Applications
- Business, Innovation, and Economy
- Agricultural and Food Sciences
- Food composition and properties
- Tree Root and Stability Studies
- Psidium guajava Extracts and Applications
- Pineapple and bromelain studies
- Medicinal Plants and Neuroprotection
- Tribology and Wear Analysis
- Frailty in Older Adults
Universidad Pontificia Bolivariana
2015-2024
Municipality of Medellín
2015-2020
National Training Service
2014
Complejo Hospitalario de Cáceres
2005
Government of Extremadura
2004
Bacterial cellulose (BC) is a polymer obtained by fermentation with microorganism of different genera. Recently, new producer species have been discovered, which require identification the most important variables affecting production. In this work, influence carbon sources in BC production novel low pH-resistant strain Komagataeibacter medellinensis was established. The Hestrin-Schramm culture medium used as reference and compared to other media comprising glucose, fructose, sucrose, at...
Cellulose crystallinity can be described according to the crystal size and index (CI). In this research, using Fourier-transform infrared spectroscopy (FTIR) X-ray diffraction (XRD) methods, we studied of three different types cellulose: banana rachis (BR), commercial cellulose (CS), bacterial (BC). For each type cellulose, analyzed crystallization grades. These variations were obtained milling conditions: 6.5 h, 10 min, unmilled (films). We developed a code in MATLAB software perform...
The phylogenetic position of a cellulose-producing acetic acid bacterium, strain ID13488, isolated from commercially available Colombian homemade fruit vinegar, was investigated. Analyses using nearly complete 16S rRNA gene sequences, 16S-23S internal transcribed spacer (ITS) as well concatenated partial sequences the housekeeping genes dnaK, groEL and rpoB, allocated micro-organism to genus Gluconacetobacter, more precisely Gluconacetobacter xylinus group. Moreover, data suggested that...
This study assessed the effect of molecular weight (MW) reduction by gamma irradiation on antioxidant capacity chitosan with potential application in preservation foodstuffs. Two batches were obtained heterogeneous chemical N-deacetylation chitin from common lobster (Panulirus argus). Irradiation was performed using a 60Co source and applying doses 5, 10, 20 50 kGy dose rate 10 kGy/h. Attenuated Total Reflection Fourier Transform Infrared Spectroscopy used to identify main features chitosan....
Abstract Despite the efforts focused on manufacturing biological engineering scaffolds for tissue and regenerative medicine, a biomaterial that meets necessary characteristics these applications has not been developed to date. Bacterial nanocellulose (BNC) is an outstanding medicine; however, BNC's have two‐dimensional (2D) medical devices, such as wound dressings. Given need three‐dimensional (3D) porous biomaterials, this work evaluates two methods generate BNC scaffolds. The structural...
We combine Perturbation Theory and Machine Learning (PTML algorithm) to train a model able predicting the best components for Nanoparticle Drug Delivery Systems (DDNS).
Edible coatings and films are appealing strategies for the postharvest management of blueberries. In current work, alginate alginate/cellulose nanofibril (CNF) edible crosslinked with calcium chloride were developed application on Andean blueberry (a promissory wild blueberry). Cocoa by-products valorized through isolation their CNFs, these incorporated in coatings. coating formulations based blends (2% w/v), CNFs (0%, 0.1%, or 0.3%), glycerol, water. addition, stand-alone prepared, light...
Abstract Summary: Extraction processes of natural fibers can be performed by different procedures that include mechanical, chemical and biological methods. Each method presents advantages or drawbacks according to the amount fiber produced quality properties bundles obtained. In this study, retting was satisfactorily used for obtaining banana from plant bunches. However, most important contribution work refers description hierarchical microstructural ordering present in both bundle surface...