Valorization of Eucalyptus Leaves by Essential Oil Extraction as an Added Value Product in Mexico

García, Conrado; Montero, Gisela; Coronado, Marcos A.; Valdez, Benjamín; Stoytcheva, Margarita; Rosas, Navor; Torres, Ricardo Abel Del Castillo; Sagaste, Carlos A.

doi:10.1007/s12649-016-9695-x

Cited by 15 publications

(11 citation statements)

References 19 publications

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“…However, this discarded plant material is still rich in bioactive compounds with interesting biological properties. Recent studies have shown the potential of remnants from Eucalyptus pruning for transformation into added value products [8,9]. The genus Eucalyptus is characterized by the presence of many secondary compounds, such as phenolics, essential oils, waxes, and resins.…”

Section: Introductionmentioning

confidence: 99%

Eucalyptus gunnii and Eucalyptus pulverulenta ‘Baby Blue’ Essential Oils as Potential Natural Herbicides

et al. 2021

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The phytotoxicity and eco-compatibility of essential oils (EOs) from Eucalyptus gunnii (EG) and E. pulverulenta ‘Baby Blue’ (EP), cultivated in Italy for their cut foliage, were investigated. Leaf micromorphology, EOs phytochemical characterization, and phytotoxicity were analysed. EP revealed a significantly higher oil gland density and a higher EO yield with respect to EG. In both EOs, 1,8-cineole was the major compound (~75%), followed by α-pinene in EG (13.1%) and eugenol in EP (7.5%). EO phytotoxicity was tested on both weeds (Lolium multiflorum, Portulaca oleracea) and crops (Raphanus sativus, Lactuca sativa, Lepidium sativum, Solanum lycopersicum, Pisum sativum, Cucumis sativus). EG EO inhibited germination of P. oleracea, R. sativus, and S. lycopersicum seeds (ranging from 61.5 to 94.6% for the higher dose used), while affecting only radical elongation in S. lycopersicum (ranging from 66.7 to 82.6%). EP EO inhibited germination of P. oleracea and R. sativus (ranging from 41.3 to 74.7%) and affected radical elongation of L. sativum and L. multiflorum (ranging from 57.4 to 76.0%). None of the EOs affected the germination and radical growing of L. sativa, P. sativum, and C. sativus. Moreover, EP EO was more active than EG EO in inhibiting α-amylase, a key enzyme for seed growth regulation. Brine shrimp lethality assay showed that both EOs are safe for aquatic organisms, suggesting their high eco-compatibility. The data collected provide useful information for future applications of these EOs in agriculture as safe and selective bioherbicides.

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Section: Introductionmentioning

confidence: 99%

Eucalyptus gunnii and Eucalyptus pulverulenta ‘Baby Blue’ Essential Oils as Potential Natural Herbicides

et al. 2021

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“…4 and Table 6. As it can be seen, , the peak of O-H group blended in the hydroxyl compounds of EUE-IMC, GTE-IMC, ROE-IMC and ZIE-IMC catheters is located at 3335, 3346, 3350 and 3330 cm -1 [34][35][36]. Moreover, the carboxylic group (C=O) of the different extracts related to EUE-IMC, ROE-IMC, GTE-IMC and ZIE-IMC is located at1712, 1689, 1691 and 1707 cm -1 [37][38][39].…”

Section: Resultsmentioning

confidence: 90%

Improving Antibacterial and Anti-biofilmic properties of urological catheters with Eucalyptus, Rosemary, Green tea and Ziziphora extracts by impregnation method

Akhlaghi-Ardekani¹,

Mohebbi-Kalhori²,

samimi³

et al. 2021

Preprint

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The main complications of urinary catheters are the bacteria's biofilm formation and the urinary tract infection caused by gram-positive and gram-negative bacteria. In the recent years, the attention has changed its direction toward the antimicrobial, anti-biofilmic, and hydrophobicity effects of herbal extracts. Some of these extracts can inhibit the colonization of the two bacteria Staphylococcus aureus and Escherichia coli which are resistant to antibiotics. These bacteria can stick to the surface of polymer materials due to their hydrophobicity. Thus, antibacterial hydrophilic herbal extracts are supposed to help reduce the risk of the surficial infection if they are used to impregnate the urinary catheters. In this research, the extracts of these four plants eucalyptus, rosemary, green tea and ziziphora were used as the antibacterial agents. After the impregnation and modification of the sample catheters, they were tested by AFM, FE-SEM, ATR-FTIR methods to measure their mechanical, chemical, and hydrophilic properties, during the 21-day experiment period, compared to non-impregnated ones. The tests showed the silicone catheters impregnated by the herbal extracts have some significant anti-biofilmic and antibacterial properties (P˂0.0001) due to the increase in their hydrophilic property. The impregnated catheters could be release the extracts and killed bacteria in 21 days Therefore; some herbal extracts can be good alternatives to chemical drugs.

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“…De igual manera, el término esencial no se refiere a una propiedad de determinante, sino a que son derivados de componentes responsables de la fragancia o quinta essentia de las plantas (52), es decir, su nombre realmente es una derivación de la palabra esencia. Los AcEs pueden obtenerse de diversos recursos vegetales (hojas, flores, tallos, frutos, vainas, semillas, raíces y cortezas) o animales (organismos marinos) y representan mezclas lipofílicas que contienen una variedad de compuestos químicos (entre 20 y 60) obtenidos a partir de diversas metodologías (53). Por lo tanto, podríamos considerar a los AcEs como sustancias oleosas que contienen diferentes tipos de MSP, dentro de los cuales, los monoterpenos y sesquiterpenos constituyen una alta proporción.…”

Section: Aceites Esencialesunclassified

Actividad antihelmíntica in vivo de terpenos y aceites esenciales en pequeños rumiantes

Torres-Fajardo

Higuera-Piedrahita

2021

Rev MVZ Córdoba

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Los terpenos y aceites esenciales (AcEs) poseen un amplio espectro de actividades biológicas que pueden ser exploradas en las ciencias veterinarias. En este sentido, su uso ha sido propuesto como una estrategia para enfrentar las crecientes poblaciones de nematodos gastrointestinales (NGI) resistentes a los antihelmínticos (AH) tradicionales. En la presente revisión analizamos 11 manuscritos científicos que, mediante la utilización del enfoque in vivo, evaluaron el potencial AH de plantas ricas en terpenos (PRT) o AcEs en pequeños rumiantes. La especie ovina fue utilizada en el 81% de los trabajos. Brasil es el país que lidera esta línea de investigación seguido de los Estados Unidos de América y la República de Benín. Todos los manuscritos analizados utilizaron la prueba de reducción del conteo fecal de huevos de NGI, mientras que cinco manuscritos emplearon la metodología del test —o prueba— controlado(a). La actividad de las PRT y los AcEs sobre la excreción de huevos de NGI en las heces fue variable, reportándose valores que oscilaron desde un efecto nulo hasta un 97%. Dos trabajos reportaron una reducción en el tamaño de los NGI machos adultos y en la fecundidad de las hembras tras la administración de AcEs. Resulta necesario generar más trabajos que se dirijan a entender las interacciones entre las plantas, sus metabolitos secundarios y los rumiantes que las consumen. Comprender dichas interacciones nos permitirá utilizar estos productos naturales como elementos que ayuden a mejorar la nutrición y la sanidad de ovinos y caprinos en diferentes sistemas productivos.

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Valorization of Eucalyptus Leaves by Essential Oil Extraction as an Added Value Product in Mexico

Cited by 15 publications

References 19 publications

Eucalyptus gunnii and Eucalyptus pulverulenta ‘Baby Blue’ Essential Oils as Potential Natural Herbicides

Eucalyptus gunnii and Eucalyptus pulverulenta ‘Baby Blue’ Essential Oils as Potential Natural Herbicides

Improving Antibacterial and Anti-biofilmic properties of urological catheters with Eucalyptus, Rosemary, Green tea and Ziziphora extracts by impregnation method

Actividad antihelmíntica in vivo de terpenos y aceites esenciales en pequeños rumiantes

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