Use of essential oil for post-harvest pest control.

2021 ◽  
Vol 16 (059) ◽  
Author(s):  
Amritesh Chandra Shukla
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Pest Control ◽  
Mechanism Of Action ◽  
Biocontrol Agents ◽  
Environmental Assessments ◽  
Botanical Pesticides ◽  
Post Harvest ◽  
Pests And Diseases ◽  
The Way

Abstract Since past few decades, application of essential oils (EOs) was explored experimentally for the management of postharvest pests and diseases. However, uses of essential oils face a series of problems, including regulatory obstruction to commercialization (such as cost of toxicological and environmental assessments) or the way that efficiency of essential oils toward pests and diseases is not as evident or clear as that seen with the present available forms. This review highlights several issues extending from EOs chemistry to their bioactivity potential. The mechanism of action of EOs is also discussed to provide better understanding about their functions and improve the scope for the establishment of commercial opportunities in the form of natural biocontrol agents/botanical pesticides.

scholarly journals Pemanfaatan Tanaman Minyak Atsiri Sebagai Pengendali Hama Tikus Padi (Biopestisida) Di Kabupaten Sukabumi

2019 ◽  
Vol 2 ◽  
pp. 243-247
Author(s):  
Lela Lailatul Khumaisah ◽  
Lela Mukmilah Yuningsih ◽  
Asep Kadarohman
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Pathogenic Bacteria ◽  
Mentha Piperita ◽  
Antibacterial Effects ◽  
Mentha Arvensis ◽  
Pests And Diseases ◽  
Rice Farmers ◽  
Rice Pests ◽  
Chemical Content

The chemical content in essential oils have activities on microbes, biopesticides, pathogenic vector insects in humans and animals, including Mentha arvensis and Mentha piperita (mint plants) which have antifertility and antibacterial effects, Vetiveria zizanoides (vetiver root) as insects repellent, Cymbopogon nardus (lemongrass) has an activity against plant pathogenic bacteria and antifungals, and Rosmarinus officinalis (rosemary) has locomotor activity of mice and antibacterial. Essential oils are effective against target organisms, compatible, safe and non-toxic, so they have enormous potential to be developed as biopesticides in controlling rice pests. On the other hand, pests and diseases are problems that always disturb rice farmers, including in Sukaresmi and Kebon Pedes villages, Sukabumi. Therefore, the use of essential oil plants has been carried out to control rice mouse pests. This has been started from the preparation of seeds to process of planting the four types of essential oils (mint, lemongrass, and rosemary) in the fields as intercrops and the procurement of essential oil distillation sets. Based on observations, the growth and development of essential oil plants as intercropping plants on rice runs normally and its impact on rice pests, especially in mice, is quite significant with not found rats around the planting area.   Keywords: Mint, lemongrass, rosemary, essential oil, biopesticide

scholarly journals Microencapsulation of Jeringau Rhizome essential oils (Acorus calamus L.) using β-Cyclodextrin

2021 ◽  
pp. 189-194
Author(s):  
Ledianasari ◽  
Deby Tristiyanti ◽  
Elva Maulydha Tanjung ◽  
Lovelyta Barani
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Ambient Temperature ◽  
Half Life ◽  
Freeze Drying ◽  
Acorus Calamus ◽  
Test Results ◽  
The Stability ◽  
Microencapsulation Method ◽  
The Way

Background: The way to improve the stability of jeringau rhizome essential oils is microencapsulation using β-cyclodextrin. Objective: To determine the efficiency of coating the jeringau rhizome essential oil with β-cyclodextrin and examine its thermostability. Method: The microencapsulation method used was freeze-drying with a ratio of 1:20 and 1:30. Results: The microcapsule efficiency at the ratio of 1:20 and 1:30 was 81.67% and 60.70%, respectively. The thermostability test results showed that the degradation constant of 1:20 microcapsule at 50oC and ambient temperature was 0.0054 and 0.0029, respectively, with a half-life of 128.33 hours and 238.97 hours. Meanwhile, the degradation constant of 1:30 microcapsule was 0.0182 and 0.0080, with a half-life of 38.07 hours and 86.63 hours. Conclusion: The highest efficiency is in the ratio of 1:20 with a percentage of 81.67%. In the thermostability test, the 1:20 microcapsule was better protected and had a longer half-life than the 1:30 microcapsule.

scholarly journals Phytotoxic and cyto-genotoxic activity of essential oil from leaf residues of Eucalyptus urophylla and the hybrid E. urophylla x E. camaldulensis on Lactuca sativa and Sorghum bicolor

2021 ◽  
Vol 10 (11) ◽  
pp. e242101119646
Author(s):  
Thammyres de Assis Alves ◽  
Thayllon de Assis Alves ◽  
Maikon Keoma da Cunha Henrique ◽  
Ana Flávia Nunes de Paula Azevedo ◽  
José Augusto Macedo Carvalho ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Sorghum Bicolor ◽  
Lactuca Sativa ◽  
Alternative Methods ◽  
Epigenetic Changes ◽  
Pests And Diseases ◽  
Mutagenic Effects ◽  
Genus Eucalyptus

The use of agrochemicals has influenced the increase in agricultural productivity. However, the concern about damage to the human health and to the environment, resulting from the indiscriminate use of pesticides, has increased worldwide. Alternative methods for controlling pests and diseases have been proposed to maintain productivity and quality of life. A possibility is to use compounds produced by the secondary metabolism of plants, such as the essential oils. Some of these substances perform inhibitory or stimulatory activity on the development of other organisms. Plants from the genus Eucalyptus have been investigated and were chosen to be studied in the present work, due to the traditional knowledge regarding the potential of the essential oils from some species, as well as, for the need to use residues from their production. Therefore, were determined the yield, identified the compounds from the essential oils of E. urophylla and the hybrid E. urophylla x E. camaldulensis, and evaluated their biological activity through bioassays, investigating the phyto-cyto-genotoxicity and mutagenicity using Lactuca sativa and Sorghum bicolor as model plants. The essential oil from the hybrid provided a higher yield. Eucalyptol was the major compound identified for both oils, representing more than 85% of the compounds present. Both E. urophylla and the hybrid showed phyto-cyto-genotoxic, mutagenic effects, and clastogenic and aneugenic mechanisms of action, promoting epigenetic changes in the meristematic cells of L. sativa. The results point out to the bioherbicidal potential of these essential oils.

scholarly journals Antifungal Activity of Essential Oils from Three Artemisia Species against Colletotrichum gloeosporioides of Mango

Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1331
Author(s):  
Xing Huang ◽  
Tiantian Liu ◽  
Chunxiang Zhou ◽  
Yulin Huang ◽  
Xing Liu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Colletotrichum Gloeosporioides ◽  
Artemisia Annua ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Inhibition Rate ◽  
Natural Conditions ◽  
Post Harvest

Post-harvest diseases of mango reduce fruit quality and cause severe yield losses with completely unmarketable fruits. The most common diseases of mangos are anthracnose (Colletotrichum gloeosporioides). In this study, the antibacterial activities of essential oils from Artemisia scoparia, Artemisia lavandulaefolia, and Artemisia annua against C. gloeosporioides were tested. The results showed that the essential oil of A. scoparia was more effective by the agar diffusion method; the EC50 value was 9.32 µL/mL. The inhibition rate was 100%, at a concentration of 10 μL/mL, through the spore germination method. The morphological changes of the mycelium were observed by scanning electron microscopy (SEM), the mycelia treated with essential oils showed shrinking, deformity, fracture, and dryness through SEM. A. scoparia essential oil was inoculated in vivo and subjected to paroxysm testing under natural conditions. A. scoparia had significantly inhibitory activity, and the inhibition rate was 66.23% in vivo inoculation tests after 10 days. The inhibition rate was 92.06% in the paroxysm test under natural conditions after 15 days. Finally, A. acoparia essential oil was analyzed by gas chromatography-mass spectrometry. The main compounds were 2-ethenyl-Naphthalene (23.5%), 2,4-pentadiynyl-Benzene (11.8%), 1,2-dimethoxy-4-(2-propenyl)-Benzene (10.0%), β-Pinene (8.0%), and 1-methyl-4-(1-methylethyl)-1,4-Cyclohexadiene (6.3%). The results have revealed the potential use of A. scoparia essential oil against post-harvest fungal pathogens C. gloeosporioides.

scholarly journals Analysis of the Sensitivity of Spring Wheat and White Mustard Seedlings to the Essential Oil of Parsley Seeds

2021 ◽  
Vol 3 (1) ◽  
pp. 12
Author(s):  
Beata Jop ◽  
Karolina Wawrzyńczak ◽  
Karolina Polaszek ◽  
Agnieszka Synowiec
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Spring Wheat ◽  
Petri Dish ◽  
Soil Conditions ◽  
Initial Growth ◽  
White Mustard ◽  
Botanical Pesticides ◽  
Growth Of Seedlings

Essential oils are a rich source of compounds for botanical pesticides. This study aimed to characterize the chemical composition of essential oil from parsley seeds and its phytotoxicity against the germination and initial growth of wheat and mustard. The main compounds of the oil were α-pinene, β-pinene, and apiol. In a Petri dish experiment, the oil inhibited germination of seeds of both species. However, the growth of seedlings of both species was more inhibited, especially for wheat. In conclusion, parsley oil displays phytotoxic potential against the studied species, which should also be tested in soil conditions and against weeds.

scholarly journals USE OF ESSENTIAL OILS IN MEDICINE AND SPA

World Science ◽  
2021 ◽  
Author(s):  
Evgeniya Dimova
Keyword(s):  
Side Effects ◽  
Essential Oil ◽  
Essential Oils ◽  
Mechanism Of Action ◽  
Human Organism ◽  
Physiological Effects ◽  
Historical Overview ◽  
Main Form ◽  
Ancient Times

This article is a short historical overview of the use of essential oils and aromatherapy from ancient times until present days. It presents brief characterization of essential oils and the possible ways of application as well as the main methods of their extraction. The focus is on aromatherapy as a main form of essential oil use, the mechanism of action of these oils and the basic biological and physiological effects on the human organism. The main modes of their application are described together with some possible side effects. Special attention is paid to the use of aromatherapy in spa. Conclusion: Aromatherapy can be used as a means of restoring the balance and harmony between the individuals and the environment they live in by helping the organism with managing the stress. Essential oils are not panacea, but are an excellent and efficient way of improving the mood, conquering the emotions, and balancing the hormones.  There is a need of current and more thorough studies on the effect of essential oils and aromatherapy on the different organs and systems, and in many diseases and functional conditions.

scholarly journals Post-Harvest Control of Anthracnose of Mango (Mangifera indica L. var Kent) using Essential Oils Extracted from two Aromatic Plants (Cymbopogon citratus (D C) Stapf. and Melaleuca quinquenervia L.) of the Ivorian Flora

2021 ◽  
Vol 10 (11) ◽  
pp. 277-293
Author(s):  
KOUAME Koffi Gaston KOUAME Konan Didier ◽  
KASSI Koffifernand Jean Martial KONE Daouda
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Spore Germination ◽  
Mycelial Growth ◽  
Melaleuca Quinquenervia ◽  
Chemical Parameters ◽  
Cymbopogon Citratus ◽  
Post Harvest ◽  
Physico Chemical

Mango anthracnose is one of the most important mango diseases in Côte d'Ivoire. The chemical approach to control this disease is today decried by consumers, because of the pesticide residues left in the fruit. The search for alternative control solutions, that respect the environment and are less polluting is becoming a necessity. Thus, the use of essential oils in the protection of mangoes against fruit pests before and especially after harvest is a promising solution. The present study aimed to reveal the inhibitory efficacy of essential oil of Melaleuca quinquenervia L. and Cymbopogon citratus (D.C) Stapf against Colletotrichum gloeosporioides (Penz.) Penz & Sacc causal agent of mango anthracnose, stored at room temperature. Five doses (100; 200; 500; 1,000 and 2,000 ppm) of each product were tested in vitro on mycelial growth and spore germination of C. gloeosporioides. In vivo, 700 and 1,400 ppm of C. citratus L. and 1,200 and 12,000 ppm of M. quinquenervia L. were tested against anthracnose in artificially inoculated mangoes. The impact of the different doses of these species on the physico-chemical parameters of the treated fruits was evaluated on day 11. Results showed that mycelial growth and spore germination were totally inhibited by C. citratus essential oil at 1,000 and 2,000 ppm throughout the experiment. In Vivo, the 1,200 ppm dose of M. quinquenervia strongly reduced the occurrence and progression of anthracnose in treated fruits compared to the control with an efficiency rate of 77.76 ± 8.73 and 86.63 ± 5.21%, respectivement. The essences did not significantly influence the physico-chemical parameters of the fruits. The doses 1,200 ppm of M. quinquenervia and 1,400 ppm of C. citratus can be recommended in a post-harvest biological control strategy against mangoes anthracnose.

Chemical Composition and Antibacterial Activity of Essential Oils of Three Medicinal Plants from Algerian Semi-Arid Climatic Zone

2018 ◽  
Vol 16 (S1) ◽  
pp. S155-S163 ◽  
Author(s):  
S. Mehalaine ◽  
O. Belfadel ◽  
T. Menasria ◽  
A. Messaili
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Rosmarinus Officinalis ◽  
Salvia Officinalis ◽  
Thymus Algeriensis

The present study was carried out to determine, for the first time, the chemical composition and antibacterial activity of essential oils derived from the aerial parts of three aromatic plants Thymus algeriensis Boiss & Reut, Rosmarinus officinalis L., and Salvia officinalis L. growing under semiarid conditions. The essential oils were chemically analyzed and identified by gas chromatography (GC) and GC/ mass spectrometry (GC/MS) and their antimicrobial activity was individually evaluated against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa using both agar disk diffusion and agar dilution methods. The major constituents of Thymus algeriensis essential oil were identified as camphor (13.62%), 1,8-cineol (6.00%), borneol (5.74%), viridiflorol (4.00%), and linalool (3.93%). For Rosmarinus officinalis essential oil, 48 compounds were characterized, of which the main constituents were camphor (17.09%), Z-β-ocimene (10.88%), isoborneol (9.68%), α-bisabolol (7.89%), and borneol (5.11%). While, Salvia officinalis essential oil was characterized by β-thujone (16.44%), followed by viridiflorol (10.93%), camphor (8.99%), 1,8-cineol (8.11%), trans-caryophyllene (5.85%), and α-humulene (4.69%) as the major components. Notably, results from antibacterial screening indicated that Thymus algeriensis and Salvia officinalis essential oils exhibited a strong inhibitory effect against both Escherichia coli and Staphylococcus aureus compared to Rosmarinus officinalis essential oil. Further, less activity was recorded against Pseudomonas aeruginosa for the three tested essential oils.

Contribution to the Optimization of a Gas Chromatographic Method by QbD Approach used for Analysis of Essential Oils from Salvia officinalis

2019 ◽  
Vol 70 (6) ◽  
pp. 2015-2020
Author(s):  
Silvia Robu ◽  
Aurelia Romila ◽  
Olimpia Dumitriu Buzia ◽  
Adrian Florin Spac ◽  
Camelia Diaconu ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Plant Material ◽  
Mobile Phase ◽  
Chromatographic Method ◽  
Salvia Officinalis ◽  
Salvia Officinalis L ◽  
Gas Chromatographic Method

Numerous articles on Salvia officinalis L. have been published regarding the composition of their essential oil. The considerable variation found may be due to the quality of the plant material as well as to the methods used for analysis. A simple GC-MS method was developed and optimized in the QbD approach, for the determination of sage essential oils. The optimization of GC-MS analysis was performed using different mobile phase flows, injection volumes, split ratios and temperature programs. The optimized method proved to be simple and can be successfully applied for the determination of sage essential oils.

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