Table 2.
Characteristics of cellulose used | EOs loaded into cellulose nanomaterials | Nanomaterials size (nm) | NPs polydispersity index | NPs zeta potential (mV) | Methods used | Functionality | Type of study | Medical or veterinary applications | References |
---|---|---|---|---|---|---|---|---|---|
Cellulose nanocrystals (CNCs) | Thyme white (Thymus vulgaris) | Width of 10 and length of 274 | Not reported | Not reported | CNCs are produced by hydrolysis of sulfonic acid and used for the formation of the Pickering emulsion with EOs | Not reported | In vitro | Antibacterial activity against Staphylococcus aureus (Gram+), and Escherichia coli (Gram-) | (Shin et al., 2019) |
Cellulose nanofibers (CNFs) | Thyme (Thymus vulgaris) | Not reported | Not reported | Not reported | CNFs are prepared by enzymatic hydrolysis pretreatment and TEMPO (2, 2, 6, 6-tetram-ethylpiperidine-1-oxide)-mediated oxidation pretreatment | Not reported | In vitro | Antibacterial properties were tested through fresh beef experiments, to preserve fresh food from contamination by bacteria | (Zhang et al., 2020) |
Cellulose nanofibers (CNFs) | Thyme (Thymus vulgaris) | Not reported | Not reported | Not reported | Supercritical impregnation of active molecules, such as EOs, onto nanocellulose three-dimensional (3 D) structures | Not reported | In vitro | Antibacterial activity against Staphylococcus epidermidis (Gram+), and Escherichia coli (Gram-) | (Darpentigny et al., 2020) |
Carboxymethyl cellulose (CMC) films | Santolina (Santolina chamaecyparissus), Pepper tree (Schinus molle), Eucalyptus (Eucalyptus globulus) |
Not reported | Not reported | Not reported | Preparation of CMC-based films containing EOs | Not reported | In vitro | Antibacterial activity against Staphylococcus aureus, Bacillus subtilis, Enterococcus faecalis (Gram+), and Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi (Gram-) | (Simsek et al., 2020) |