Polyphenolic Content, Antioxidant and Antimicrobial Activity of Hydrosols from Some Aromatic Lamiaceae Plants

Gaspar‐Pintiliescu, Alexandra; Mihai, Elena; Stanciuc, Ana-Maria; Anton, Ruxandra Elena; Popescu, Adriana Florina; Crăciunescu, Oana

doi:10.3390/proceedings2020057021

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…The hydrosol extract of Thymus capitatus L. rich in carvacrol effectively inhibited the growth of important fungal pathogens of Citrus sinensis L. including Aspergillus niger , Aspergillus oryzae , and Fusarium solani [ 238 ]. Gaspar-Pintiliescu et al [ 239 ] reported antibacterial activity for the aromatic water of Rosmarinus officinalis . Under in vitro conditions, strong nematicidal activity was associated with the use of hydrolates derived from Lavandula × intermedia Emeric ex Loisel.…”

Section: Aromatic Plants As Biocontrol Agentsmentioning

confidence: 99%

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Greff

Sáhó

Lakatos

et al. 2023

Plants

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Soil-borne phytopathogens can have detrimental effects on both cereal and horticultural crops resulting in serious losses worldwide. Due to their high efficiency and easy applicability, synthetic pesticides are still the primary choice in modern plant disease control systems, but stringent regulations and increasing environmental concerns make the search for sustainable alternatives more pressing than ever. In addition to the incorporation of botanicals into agricultural practices, the diversification of cropping systems with aromatic and medicinal plants is also an effective tool to control plant diseases through providing nutrients and shaping soil microbial communities. However, these techniques are not universally accepted and may negatively affect soil fertility if their application is not thoroughly controlled. Because the biocontrol potential of aromatic and medicinal plants has been extensively examined over the past decades, the present study aims to overview the recent literature concerning the biopesticide effect of secondary metabolites derived from aromatic and medicinal plants on important soil-borne plant pathogens including bacteria, fungi, and nematodes. Most of the investigated herbs belong to the family of Lamiaceae (e.g., Origanum spp., Salvia spp., Thymus spp., Mentha spp., etc.) and have been associated with potent antimicrobial activity, primarily due to their chemical constituents. The most frequently tested organisms include fungi, such as Rhizoctonia spp., Fusarium spp., and Phytophthora spp., which may be highly persistent in soil. Despite the intense research efforts dedicated to the development of plant-based pesticides, only a few species of aromatic herbs are utilized for the production of commercial formulations due to inconsistent efficiency, lack of field verification, costs, and prolonged authorization requirements. However, recycling the wastes from aromatic and medicinal plant-utilizing industries may offer an economically feasible way to improve soil health and reduce environmental burdens at the same time. Overall, this review provides comprehensive knowledge on the efficiency of aromatic herb-based plant protection techniques, and it also highlights the importance of exploiting the residues generated by aromatic plant-utilizing sectors as part of agro-industrial processes.

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Section: Aromatic Plants As Biocontrol Agentsmentioning

confidence: 99%

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Greff

Sáhó

Lakatos

et al. 2023

Plants

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Unlocking the Potential of Hydrosols: Transforming Essential Oil Byproducts into Valuable Resources

Almeida,

Fernandes,

Amaral

et al. 2024

Molecules

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The global demand for sustainable and non-toxic alternatives across various industries is driving the exploration of naturally derived solutions. Hydrosols, also known as hydrolates, represent a promising yet underutilised byproduct of the extraction process of essential oils (EOs). These aqueous solutions contain a complex mixture of EO traces and water-soluble compounds and exhibit significant biological activity. To fully use these new solutions, it is necessary to understand how factors, such as distillation time and plant-to-water ratio, affect their chemical composition and biological activity. Such insights are crucial for the standardisation and quality control of hydrosols. Hydrosols have demonstrated noteworthy properties as natural antimicrobials, capable of preventing biofilm formation, and as antioxidants, mitigating oxidative stress. These characteristics position hydrosols as versatile ingredients for various applications, including biopesticides, preservatives, food additives, anti-browning agents, pharmaceutical antibiotics, cosmetic bioactives, and even anti-tumour agents in medical treatments. Understanding the underlying mechanisms of these activities is also essential for advancing their use. In this context, this review compiles and analyses the current literature on hydrosols’ chemical and biological properties, highlighting their potential applications and envisioning future research directions. These developments are consistent with a circular bio-based economy, where an industrial byproduct derived from biological sources is repurposed for new applications.

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Polyphenolic Content, Antioxidant and Antimicrobial Activity of Hydrosols from Some Aromatic Lamiaceae Plants

Abstract: Hydrosols, also named hydrolates or aromatic waters, are considered distillation by-productsobtained during essential oil extraction from herbs or spices, which are usually discarded. [...]

Cited by 2 publications

References 2 publications

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Biocontrol Activity of Aromatic and Medicinal Plants and Their Bioactive Components against Soil-Borne Pathogens

Unlocking the Potential of Hydrosols: Transforming Essential Oil Byproducts into Valuable Resources

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