scholarly journals Essential Oils as Post-Harvest Crop Protectants against the Fruit Fly Drosophila suzukii: Bioactivity and Organoleptic Profile

Insects ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 508 ◽  
Author(s):  
Stefano Bedini ◽  
Francesca Cosci ◽  
Camilla Tani ◽  
Erika Carla Pierattini ◽  
Francesca Venturi ◽  
...  
Keyword(s):  
Essential Oils ◽  
Chemical Constituents ◽  
Insect Pest ◽  
Fruit Fly ◽  
Drosophila Suzukii ◽  
Negative Effects ◽  
Tea Tree ◽  
Post Harvest ◽  
Organoleptic Characteristics ◽  
Low Concentrations

The essential oils extracted from mandarin (Citrus reticulata Blanco) fruits, and from tea tree (Maleleuca alternifolia (Maiden and Betche) Cheel) leaves have been chemically analyzed and tested for their bioactivity against D. suzukii. Besides, to estimate consumers’ acceptability of the essential oil (EO) treatments, we evaluated their impact on the organoleptic characteristics of the EO-treated fruits. The main chemical constituents of the two EOs were 1,8-cineole and 4-terpineol for M. alternifolia (22.4% and 17.6% of the total components, respectively), and limonene (83.6% of the total components) for C. reticulata. The behavioral tests indicate that the two EOs are able to deter D. suzukii oviposition and that D. suzukii shows positive chemotaxis to low concentrations of the EOs and negative chemotaxis when the EO concentration increases. While no negative effects on the organoleptic profiles were detected for fruits treated with C. reticulata EO, the olfactory profile of fruits treated with M. alternifolia EO was so negative that they were defined as “not suitable for consumption” by panellists. Overall, our findings indicate that the use of EOs for the post-harvest protection of small fruits is feasible, provided that the essential oils are selected not only for their bioactivity against the insect pest but also for their affinity with the consumers’ sensorial system.

scholarly journals Chemical Composition of Essential Oil From Tetradenia riparia and Its Attractant Activity for Mediterranean Fruit Fly, Ceratitis capitata

2020 ◽  
Vol 15 (9) ◽  
pp. 1934578X2095395
Author(s):  
Eugene K. Blythe ◽  
Nurhayat Tabanca ◽  
Betul Demirci ◽  
Paul E. Kendra
Keyword(s):  
Essential Oil ◽  
Ceratitis Capitata ◽  
Chemical Constituents ◽  
Fruit Fly ◽  
Positive Control ◽  
Mediterranean Fruit Fly ◽  
Great Promise ◽  
Tea Tree ◽  
Flame Ionization ◽  
Aerial Parts

The Mediterranean fruit fly or medfly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is one of the most economically important invasive pests worldwide, with over 300 known hosts. Essential oils have great promise for application in integrated pest management, where they function as natural repellents, attractants, and toxicants with a reduced impact on the environment. In this study, we evaluated essential oil from aerial parts of the African ginger bush, Tetradenia riparia (Hochst.) Codd (Lamiaceae), as a potential new attractant for male C. capitata. Tetradenia riparia essential oil (TREO) was analyzed by gas chromatography (GC)-flame ionization detection and GC-mass spectrometry (GC-MS). The primary compounds identified were fenchone (15%), δ-cadinene (11%), 14-hydroxy-β-caryophyllene (8%), and tau-cadinol (7%). In short-range laboratory bioassays with sterile male medflies, TREO exhibited attractancy comparable to that observed with a positive control, essential oil from tea tree ( Melaleuca alternifolia (Maiden and Betche) Cheel.). This study provides the first report of C. capitata behavioral response to TREO. Further research is needed, particularly with the 2 enantiomers of fenchone, to determine the chemical constituents responsible for the attraction of C. capitata.

scholarly journals Essential Oils in the Control of Anthracnose on ‘Prata Ana’ Banana

2018 ◽  
Vol 10 (9) ◽  
pp. 116
Author(s):  
M. L. M. Rodrigues ◽  
E. H. Mizobutsi ◽  
I. R. F. F. Fagundes ◽  
M. B. Fernandes ◽  
G. P. Mizobutsi ◽  
...  
Keyword(s):  
Essential Oils ◽  
Mycelial Growth ◽  
Fungal Growth ◽  
Zingiber Officinale ◽  
Thymus Vulgaris ◽  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Negative Effects ◽  
Tea Tree ◽  
Colletotrichum Musae

Alternative forms of disease control in fruits have been researched in an attempt to minimize the negative effects of chemical control on men and environment. The aim of this study was to determine the best concentration of essential oils to control the development of Colletotrichum musae and anthracnose intensity in ‘Prata Anã’ banana. In order to inhibit germination, mycelial growth and sporulation, four essential oils of clove (Eugenia caryophyllus), tea tree (Melaleuca alternifolia), thyme (Thymus vulgaris) and ginger (Zingiber officinale) species were used at concentrations of 2, 4, 6 and 8 μL. In fruits, the same essential oils were applied at concentrations of 80, 160, 240 and 320 μL to evaluate the incidence and severity of anthracnose. Clove and thyme oils were the most efficient in inhibiting mycelial growth, germination and sporulation at all concentrations tested. The volatile compounds present in clove and thyme oils provide complete inhibition of fungal growth. Tea tree and ginger oils have the ability to suppress anthracnose in ‘Prata Anã’ banana. Concentrations of 160 μL of ginger oil, 160 and 240 μL of tea tree oil reduced the anthracnose severity in fruits. Ginger and tea tree essential oils have the potential to control banana anthracnose, reducing the anthracnose incidence in fruits by 48% and 24%, respectively.

scholarly journals Chemical, toxicological and environmental aspects of parabens and its substitutes in the cosmetic industry

2019 ◽  
Vol 12 (2) ◽  
pp. 22
Author(s):  
Ingrid Ferreira Costa ◽  
Rogério Aparecido Machado ◽  
Marcio Adriano Andreo
Keyword(s):  
Essential Oils ◽  
Plant Extracts ◽  
Low Cost ◽  
Endocrine System ◽  
Environmental Aspects ◽  
Organoleptic Characteristics ◽  
Low Concentrations ◽  
Cosmetic Industry ◽  
Natural Preservatives

As a result of their effectiveness in low concentrations, low cost of synthesizing and not causing alteration in the organoleptic characteristics of the products, parabens are widely used as a preservative in cosmetics. According to studies, these esters have the potential to interfere with the performance of the endocrine system causing changes in hormones activity, as well as represent a hazard to the environment. This study aimed to evaluate the main chemical, toxicological and environmental aspects of parabens in the cosmetic industry comparing to other preservatives, discussing also the use of plant extracts and essential oils as natural preservatives.

scholarly journals Comparative analysis of the repellency activity of single compounds and the synthetic blends of semiochemicals from Aframomum melegueta (R.schum) and Dennittia tripetala (Bak.F) against Rhizopertha dominica in Calabar, Nigeria

2021 ◽  
Vol 1 (2) ◽  
pp. 59-69
Author(s):  
Lawrence Ugbe
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Chemical Constituents ◽  
Insect Pest ◽  
Research Work ◽  
Reproductive Potential ◽  
Sub Saharan Africa ◽  
Small Scale ◽  
Rhizopertha Dominica ◽  
Repellency Activity

Bioassay experiments were carried out in Calabar to compare the repellency activity of single compounds and the synthetic blends of Semiochemicals extracted from Afromomum melegueta and Dennittia tripetala. The aim of the experiment was to determine the efficacy of single compounds and the synthetic blends in suppressing the reproductive potential and adult emergence of Rhizopertha dominica, (Fabricius), a primary pest of stored cassava pellets and cereal grains in Sub-Saharan Africa. Insect culture of the adult R. dominica was set up in the laboratory at Federal College of Education Obudu to obtain fresh insects for the bioassay experiments. Dried seeds of A. melegueta (R. Schum) and D. tripetala (Baker f.) Schatz were procured from the main market in Obudu for the purpose of the research work. 100g each of the dried fruits of the spice plants were pounded separately with the laboratory pestle and mortar for the extraction of the essential oils (EOs). The oils extracted were tested for toxicity and reproductive potential deterrence against R. dominica. The chemical constituents of the essential oils were isolated, identified and tested against R. dominica. Synthetic blends of individual compounds were prepared based on their natural ratios and were also tested for toxicity and reproductive potential deterrence against the insect pests in the laboratory. The result showed that both the single compounds and the synthetic blends were toxic and repellent to the insect pest, and could significantly suppress the reproductive potential thereby inhibiting the emergence of adult insect. However, synthetic blends exhibited a stronger efficacy in their toxicity against the pest thereby providing a broad spectrum of insecticidal bioactivity against R. dominica than the single compounds. This action of the synthetic blends of extracts from the spice plants demonstrated their potential for development in stored products protection especially at the small scale resource poor farmer’s level in Nigeria.

scholarly journals Impact of Metarhizium robertsii on Adults of the Parasitoid Diachasmimorpha longicaudata and Parasitized Anastrepha ludens Larvae

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 125
Author(s):  
Ehdibaldo Presa-Parra ◽  
Francisco Hernández-Rosas ◽  
Julio S. Bernal ◽  
Jorge E. Valenzuela-González ◽  
Jovita Martínez-Tlapa ◽  
...  
Keyword(s):  
Metarhizium Anisopliae ◽  
Fruit Fly ◽  
Anastrepha Ludens ◽  
Mexican Fruit Fly ◽  
Isaria Fumosorosea ◽  
Negative Effects ◽  
Metarhizium Robertsii ◽  
Low Concentrations ◽  
Combined Use ◽  
Diachasmimorpha Longicaudata

Biological control of the Mexican fruit fly, Anastrepha ludens, is mainly carried out by releasing parasitoids, such as Diachasmimorpha longicaudata, and by applying entomopathogenic fungi (EPF), such as Metarhizium anisopliae, Beauveria bassiana, or Isaria fumosorosea, which can be applied to the soil or dispersed using infective devices. The combined use of two or more biocontrol agents could improve A. ludens control, but IGP between natural enemies, if it occurs, may have negative effects. We evaluated the effects of EPF on D. longicaudata. First, we determined the susceptibility of adults of D. longicaudata to strains of EPF (Metarhizium robertsii strain V3-160 and M. anisopliae strain MAAP1). We also evaluated the infection of these two fungi on A. ludens larvae parasitized by D. longicaudata. Finally, we determined sub-lethal effects on adults of D. longicaudata that emerged from larvae that had been exposed to low concentrations of M. robertsii. Both fungi caused moderate mortality to D. longicaudata adults. There were no adverse effects on the longevity of parasitoids that emerged from parasitized larvae exposed to M. robertsii. Based on these results, we argue that M. robertsii has the potential to be used for biocontrol of A. ludens, with limited risk to D. longicaudata adults.

scholarly journals Blue Tansy Essential Oil: Chemical Composition, Repellent Activity Against Aedes aegypti and Attractant Activity for Ceratitis capitata

2021 ◽  
Vol 16 (2) ◽  
pp. 1934578X2199019 ◽  
Author(s):  
Iris Stappen ◽  
Juergen Wanner ◽  
Nurhayat Tabanca ◽  
Ulrich R. Bernier ◽  
Paul E. Kendra
Keyword(s):  
Essential Oil ◽  
Aedes Aegypti ◽  
Ceratitis Capitata ◽  
Stationary Phases ◽  
Management Strategies ◽  
Fruit Fly ◽  
Effective Dosage ◽  
Mosquito Vector ◽  
Tea Tree ◽  
Potential Applications

Blue tansy essential oil (BTEO) ( Tanacetum annuum L.) was analyzed by GC-MS and GC-FID using two different capillary column stationary phases. Sabinene (14.0%), camphor (13.6%), myrcene (8.0%), β-pinene (7.7%), and chamazulene (6.9%) were the main components using an SE52 column (non-polar). On a polar CW20M phase column, sabinene (15.1%), camphor (14.4%), α-phellandrene (7.9%), β-pinene (7.7%), and myrcene (6.9%) were the most abundant compounds. To assess the oil for potential applications in integrated pest management strategies, behavioral bioassays were conducted to test for repellency against yellow fever mosquito Aedes aegypti, and for attractant activity for Mediterranean fruit fly Ceratitis capitata. Results showed that BTEO was not effective in repelling Ae. aegypti (minimum effective dosage [MED]: 0.625 ± 0.109 mg/cm2 compared with the standard insect repellent DEET (N,N-diethyl-3-methylbenzamide). In assays with male C. capitata, BTEO displayed mild attraction compared with two positive controls (essential oils from tea tree Melaleuca alternifolia and African ginger bush Tetradenia riparia). Additional studies are needed to identify the specific attractant chemicals in BTEO and to determine if they confer a synergistic effect when combined with other known attractants for C. capitata. To the best of our knowledge, this study represents the first investigation of BTEO for repellency against the mosquito vector Ae. aegypti and for attractancy to C. capitata, a major agricultural pest worldwide.

Effects of cold post-harvest treatments of sweet bell peppers on the development of the Mediterranean fruit fly ( Ceratitis capitata )

2016 ◽  
Vol 120 ◽  
pp. 16-22 ◽  
Author(s):  
Rossana Castro ◽  
Elazar Fallik ◽  
Esther Nemny-Lavy ◽  
Sharon Alkalai-Tuvia ◽  
Polychronis Rempoulakis ◽  
...  
Keyword(s):  
Ceratitis Capitata ◽  
Fruit Fly ◽  
Mediterranean Fruit Fly ◽  
Post Harvest ◽  
Bell Peppers ◽  
The Mediterranean

scholarly journals Comparison of chemical constituents and antimicrobial activities of three essential oils from three different brands' clove samples collected from Gulf region

2014 ◽  
Vol 4 (4) ◽  
pp. 262-268 ◽  
Author(s):  
Mohammad Amzad Hossain ◽  
Saliha Rashid AL Harbi ◽  
Afaf Mohammed Weli ◽  
Qasim Al-Riyami ◽  
Jamal Nasser Al-Sabahi
Keyword(s):  
Essential Oils ◽  
Chemical Constituents ◽  
Antimicrobial Activities ◽  
Gulf Region

scholarly journals Amelioration of Smoke Taint in Cabernet Sauvignon Wine via Post-Harvest Ozonation of Grapes

Beverages ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 44
Author(s):  
Margherita Modesti ◽  
Colleen Szeto ◽  
Renata Ristic ◽  
WenWen Jiang ◽  
Julie Culbert ◽  
...  
Keyword(s):  
Sensory Attributes ◽  
Sensory Properties ◽  
Ozone Treatment ◽  
Cabernet Sauvignon ◽  
Negative Effects ◽  
Volatile Phenols ◽  
Post Harvest ◽  
Perceived Intensity ◽  
Wine Composition ◽  
Marker Compounds

Strategies that mitigate the negative effects of vineyard exposure to smoke on wine composition and sensory properties are needed to address the recurring incidence of bushfires in or near wine regions. Recent research demonstrated the potential for post-harvest ozonation of moderately smoke-exposed grapes to reduce both the concentration of smoke taint marker compounds (i.e., volatile phenols and their glycosides) and the perceived intensity of smoke taint in wine, depending on the dose and duration of ozone treatment. The current study further evaluated the efficacy of ozonation as a method for the amelioration of smoke taint in wine by comparing the chemical and sensory consequences of post-harvest ozonation (at 1 ppm for 24 h) of Cabernet Sauvignon grapes following grapevine exposure to dense smoke, i.e., ozone treatment of more heavily tainted grapes. Ozonation again yielded significant reductions in the concentration of free and glycosylated volatile phenols—up to 25% and 30%, respectively. However, although the intensities of smoke-related sensory attributes were generally lower in wines made with smoke-exposed grapes that were ozonated (compared to wines made with smoke-exposed grapes that were not ozonated), the results were not statistically significant. This suggests that the efficacy of ozone treatment depends on the extent to which grapes have been tainted by smoke.

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