Comparison of antifungal activity of extracts from different Juglans regia cultivars and juglone

Wianowska, Dorota; Garbaczewska, S.; Cieniecka‐Rosłonkiewicz, Anna; Dawidowicz, Andrzej L.; Jankowska, Anna

doi:10.1016/j.micpath.2016.10.009

Cited by 46 publications

(27 citation statements)

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“…Green walnut husks are a by-product of nut production and are rarely used. However, walnut husks, like fruit, leaves and liqueurs produced from green fruit, have significant antioxidant and antimicrobial activity [39,40,41,42,43,44]. The properties of green walnut hulls are associated with the presence of phenolic compounds in the plant material: chlorogenic acid, caffeic acid, ferulic acid, sinapic acid, gallic acid, ellagic acid, protocatechuic acid, syringic acid, vanillic acid, catechin, epicatechin, myricetin, and juglone.…”

Section: Introductionmentioning

confidence: 99%

Effect of Impregnation of Biodegradable Polyesters with Polyphenols from Cistus linnaeus and Juglans regia Linnaeus Walnut Green Husk

Latos‐Brozio

Masek

2019

Polymers

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The publication describes a process combining the extraction of plant material and impregnation of biodegradable polymers (polylactide (PLA) and polyhydroxyalkanoate (PHA)). As raw plant materials for making extracts, Cistus and green walnut husk were selected due to their high content of active phytochemicals, including antioxidants. The extracts used to impregnate polymers contained valuable polyphenolic compounds, as confirmed by FTIR and UV–Vis spectroscopy. After impregnation, the polymer samples showed greater thermal stability, determined by the differential scanning calorimetry (DSC) method. In addition, despite the presence of natural antibacterial and antifungal substances in the extracts, the polyester samples remained biodegradable. The manuscript also describes the effect of UV aging on the change of surface free energy and the color of polymers. UV aging has been selected for testing due to the high susceptibility of plant compounds to this degrading factor. The combination of the extraction of plant material and polymer impregnation in one process proved to be an effective and functional method, as both the obtained plant extracts and impregnated polymers showed the expected properties.

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Section: Introductionmentioning

confidence: 99%

Effect of Impregnation of Biodegradable Polyesters with Polyphenols from Cistus linnaeus and Juglans regia Linnaeus Walnut Green Husk

Latos‐Brozio

Masek

2019

Polymers

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“…1,4‐Naphthoquinones, such as juglone ( 1 ), plumbagin ( 2 ), droserone ( 3 ), naphthomycin A and rifamycin S represent a wide group of natural products featuring highly oxidized structures. The promising valuable cytotoxic, antibacterial, antifungal, antiprotozoal, insecticidal and anti‐inflammatory pharmacological effects attract great interests in the polysubstituted 1,4‐naphthoquinones as final products or key synthetic intermediates in recent years . Although numerous reports have described synthetic routes to various 1,4‐naphthoquinone derivatives, large collections with a diversity of amino/hydroxyl/methyl substitutions in the aromatic or quinone ring are not commercially available in bulk.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Synthesis and Structure–Activity Relationships of a Small Library of Substituted 1,4‐Naphthoquinones

Bao

Shi

et al. 2018

Eur J Org Chem

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A platform of highly efficient synthetic methodologies has been established to access a focused library of substituted 1,4‐naphthoquinones derivatives functionalized with a diversity of amino/hydroxy/alkyl groups. Furthermore, the structure–activity relationship deduced from antiproliferative activities and toxicities of this 1,4‐naphthoquinone library and intracellular reactive oxygen species (ROS) level detections might warrant future potential of plumbagin (2) and compound 13 as promising basic structures to develop novel anti‐cancer agents.

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“…There are many in vitro research on the fungistatic effect of essential oils obtained from many plants including Coriandrum sativum, Tagetes minuta, Lavandula x intermedia, Laurus nobilis (Damiani et al, 2014;Eguaras et al, 2005;Larrán et al, 2001), Cinnamomum glandulifera, Ocimum basilicum, Rosmurinus offacinalis, Eucalyptus globulus (Larrán et al, 2001), Eugenia caryophyllum, Piper betel, Illicium verum, Cinnamomum cassia, Acorus calamus (Chantawannakul et al, 2003;El-enain et al, 2009;Jatisatienr and Jatisatienr, 1999), Thymus vulgaris, Satureja montana, Origanum vulgare (Colin et al, 1989;Kloucek et al, 2012), Eucalyptus citrodora, Leptospermum petersonii, Leptospermum scoparium (Davis & Ward, 2003), Punica granatum, Psidium guajava, Callistemon viminalis, Cinnamomum zeylanicum (El Shafai, 2012, Litsea cubeba, Croton bonplandianus, Mentha spicata, Matricaria chamomilla, Piper betle, Daucus carota, Cuminum cyminum, Syzygium aromaticum , Juglans regia L. (Garbaczewska et al, 2014;Wianowska et al, 2016), Armoracia rusticana, Cymbopogon flexosus, Allium sativum, Origanum compactum, Thymus satureoides, Cinnamomum aromaticum (Kloucek et al, 2012), Origanum onites (Korukluoglu et al, 2009) Melissa officinalis, Cymbopogon spp. (Gochnauer et al, 1979), Litsea cubeba, Pelargonium graveolens (Nardoni et al, 2017), Propolis (Cinnamic acid, pinocembrin) (Voigt and Rademacher, 2015).…”

Section: Essential Oils Against Chalkbrood Diseasementioning

confidence: 99%

Plant Essential Oils Used Against Some Bee Diseases

Tutun

Koç

Kart

2018

Turkish JAF Sci.Tech.

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The most common honey bee diseases are American foulbrood (AFB) caused by the bacterium Paenibacillus larvae, Chalkbrood caused by fungus Ascosphaera apis and diseases caused by parasitic mites such as Acarapis woodi, Varroa destructor. These diseases and pests not only cause economic loss but also cause ecological problems related to the role of honey bees, as the most important pollinators on Earth. Synthetic acaricides and antibiotics are used to keep the diseases and mites in control. Use of the drugs lead to the development of drug-resistant organisms, detrimental effect on non-target organisms and the residue problem in bee products. For this reasons, the need for alternative control methods has become compulsory in recent years. It has been known that some plant oils used widely in perfumery and food industry for flavor and smell have been used as repellent to certain insects, bactericide and fungicide. Therefore, intensive studies have been carried out on plants with anti-mites, antibacterial and antifungal potentials and these studies are still going on. Recently, studies in this area have shown that essential oils of plants such as thyme, cloves, mint, lemon grass, cinnamon, grapefruit, rosemary, marigold, are lethal to some mites, bacteria and fungi. In addition, it has been reported that some components, isolated from these plants such as sanguinarine, thymoquinone, capsaicin, carvacrol, citral, eugenol, thymol, show these effects on the organisms. As a result, in countries rich in biodiversity due to endemic plant species, the essential oils used in control of these diseases should be favored instead of or in combination with conventional drugs in integrated the disease management programs because of the lack of harmful effects of essential oils on non-target organisms and environment.

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Comparison of antifungal activity of extracts from different Juglans regia cultivars and juglone

Cited by 46 publications

References 11 publications

Effect of Impregnation of Biodegradable Polyesters with Polyphenols from Cistus linnaeus and Juglans regia Linnaeus Walnut Green Husk

Effect of Impregnation of Biodegradable Polyesters with Polyphenols from Cistus linnaeus and Juglans regia Linnaeus Walnut Green Husk

Highly Efficient Synthesis and Structure–Activity Relationships of a Small Library of Substituted 1,4‐Naphthoquinones

Plant Essential Oils Used Against Some Bee Diseases

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