Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 209, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2021.112186
Keywords
Essential oils; Terpenes; Clay minerals; Essential oil; montmorillonite hybrids; Bioactivity
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Essential oils are natural mixtures used for various purposes but are hindered by volatility. Studies show that combining them with clay minerals can create new materials with antibacterial and insecticidal properties.
Essential oils (EOs) are complex natural mixtures of secondary plant metabolites that function as biocides and therapeutic agents. They are extensively used in bactericidal, virucidal, fungicidal, antiparasitic, insecticidal, pharmaceutical, and cosmetic products. However, certain characteristics, such as the volatility of EOs, hinder their widespread use. To mitigate this limitation, several studies have investigated combinations of EOs with natural materials, including clay minerals. Clay minerals are abundant in nature, biocompatible, and non-toxic to the environment and humans. Clay minerals such as montmorillonite possess available sites where EO molecules can interact. The combination of EOs with clay minerals produces new materials for various applications including antibacterial, antifungal, insecticidal/repellent, and active packaging materials. Therefore, this review focuses on the immobilization of several types of EOs in raw and modified montmorillonites. The applications of the described systems were evaluated and demonstrated the synergism of the properties of the isolated components as a function of different EOs incorporated in the silicate matrix.
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