scholarly journals Activite Antifongique Des Flavonoïdes Isoles De La Plante Asteriscus Graveolens Subsp. Odorus (Schousb.) Greuter

2016 ◽  
Vol 12 (12) ◽  
pp. 258
Author(s):  
Hakim Alilou ◽  
Bouchaib Bencharki ◽  
Jalal Talbi ◽  
Noureddine Barka
Keyword(s):  
Botrytis Cinerea ◽  
Caffeic Acid ◽  
Fruits And Vegetables ◽  
High Sensitivity ◽  
Penicillium Digitatum ◽  
Penicillium Expansum ◽  
Activité Antifongique ◽  
Post Harvest ◽  
The Subject

A phenol acid and three flavones isolated from the plant Asteriscus graveolens subsp. odorus were tested against three fungi: Botrytis cinerea, Penicillium digitatum and Penicillium expansum. Using the method of incorporation of products in a PDA, a high sensitivity of Botrytis cinerea to caffeic acid and nevadensine was observed. Penicillium digitatum is the sensitive to luteolin, as to Penicillium expansum, it marks a sensitivity to artemetin. The efficacy of the tested molecules could be the subject of an investigation and exploitation in the integrated fight against the three tested fungi that cause a lot of damage to fruits and vegetables post-harvest.

scholarly journals Isolement, Identification Et Activite Antifongique De Deux Sesquiterpenes D’asteriscus Graveolens Subsp. Odorus (Schousb.) Greuter

2016 ◽  
Vol 12 (33) ◽  
pp. 112
Author(s):  
Hakim Alilou ◽  
Bouchaib Bencharki ◽  
Mohammed Akssira ◽  
Lalla Mina Idrissi Hassani ◽  
Noureddine Barka
Keyword(s):  
Botrytis Cinerea ◽  
Integrated Control ◽  
Inhibitory Effect ◽  
Penicillium Digitatum ◽  
Penicillium Expansum ◽  
Activité Antifongique ◽  
Remarkable Effect ◽  
Preventive Approach ◽  
Strong Inhibitory Effect

Two sesquiterpenes of Asteriscus graveolens subsp. odorus, have been extracted, separated, purified and identified by NMR and IR: the naupliolide and asteriscunolide 3c. The valuation of these compounds is part of the search for a preventive approach of integrated control to reduce significantly the use of pesticides and especially the fungicide ones. The results revealed a strong inhibitory effect on naupliolide against Botrytis cinerea, Penicillium digitatum and Penicillium expansum dice concentration of 200 ppm. The asteriscunolide 3c showed a remarkable effect against Botrytis cinerea from the concentration of 150 ppm.

scholarly journals Botrytis cinerea and Table Grapes: A Review of the Main Physical, Chemical, and Bio-Based Control Treatments in Post-Harvest

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1138 ◽  
Author(s):  
Nicola De Simone ◽  
Bernardo Pace ◽  
Francesco Grieco ◽  
Michela Chimienti ◽  
Viwe Tyibilika ◽  
...  
Keyword(s):  
Botrytis Cinerea ◽  
Fruits And Vegetables ◽  
Model Organism ◽  
Economic Losses ◽  
Great Promise ◽  
Post Harvest ◽  
Table Grapes ◽  
Physical Chemical ◽  
Grape Quality ◽  
Product Quality And Safety

Consumers highly appreciate table grapes for their pleasant sensory attributes and as good sources of nutritional and functional compounds. This explains the rising market and global interest in this product. Along with other fruits and vegetables, table grapes are considerably perishable post-harvest due to the growth of undesired microorganisms. Among the microbial spoilers, Botrytis cinerea represents a model organism because of its degrading potential and the huge economic losses caused by its infection. The present review provides an overview of the recent primary physical, chemical, and biological control treatments adopted against the development of B. cinerea in table grapes to extend shelf life. These treatments preserve product quality and safety. This article also focuses on the compliance of different approaches with organic and sustainable production processes. Tailored approaches include those that rely on controlled atmosphere and the application of edible coating and packaging, as well as microbial-based activities. These strategies, applied alone or in combination, are among the most promising solutions in order to prolong table grape quality during cold storage. In general, the innovative design of applications dealing with hurdle technologies holds great promise for future improvements.

scholarly journals Pathogenic mechanisms and control strategies of Botrytis cinerea causing post-harvest decay in fruits and vegetables

2018 ◽  
Vol 2 (3) ◽  
pp. 111-119 ◽  
Author(s):  
Li Hua ◽  
Chen Yong ◽  
Zhang Zhanquan ◽  
Li Boqiang ◽  
Qin Guozheng ◽  
...  
Keyword(s):  
Botrytis Cinerea ◽  
Fruits And Vegetables ◽  
Control Strategies ◽  
Pathogenic Mechanisms ◽  
Post Harvest ◽  
And Control

Understanding the Role of Chlorine and Ozone to Control Postharvest Diseases in Fruit and Vegetables: A Review

2020 ◽  
Vol 16 (4) ◽  
pp. 455-461
Author(s):  
Gabriela M. Baia ◽  
Otniel Freitas-Silva ◽  
Murillo F. Junior
Keyword(s):  
Chlorine Dioxide ◽  
Broad Spectrum ◽  
Fruits And Vegetables ◽  
Low Cost ◽  
Residual Effects ◽  
Pathogenic Microorganisms ◽  
Postharvest Diseases ◽  
Post Harvest ◽  
By Products

Fruits and vegetables are foods that come into contact with various types of microorganisms from planting to their consumption. A lack or poor sanitation of these products after harvest can cause high losses due to deterioration and/ or pathogenic microorganisms. There are practically no post-harvest fungicides or bactericides with a broad spectrum of action that have no toxic residual effects and are safe. However, to minimize such problems, the use of sanitizers is an efficient device against these microorganisms. Chlorine is the most prevalent sanitizing agent because of its broad spectrum, low cost and well-established practices. However, the inevitable formation of disinfection by-products, such as trihalomethanes (THMs) and haloacetic acids (HAAs), is considered one of the main threats to food safety. Alternative sanitizers, such as chlorine dioxide (ClO2) and ozone, are becoming popular as a substitute for traditional post-harvest treatments. Thus, this review addresses the use of chlorine, chlorine dioxide and ozone emphasizing aspects, such as usage, safe application, spectrum of action and legislation. In order to ensure the quality and safety of final products, the adoption of well-prepared sanitation and sanitation programs for post-harvest fruits and vegetables is essential.

scholarly journals The Influence of Physical Treatments on Phytochemical Changes in Fresh Produce after Storage and Marketing

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 788
Author(s):  
Elazar Fallik ◽  
Zoran Ilić
Keyword(s):  
Fruits And Vegetables ◽  
Growth Conditions ◽  
Nutritional Content ◽  
Nutrition And Health ◽  
Phytochemical Content ◽  
Post Harvest ◽  
Crop Genetics ◽  
Anti Cancer ◽  
Nutritional Qualities ◽  
Physical Treatments

More food with high nutritional content will be needed to feed the growing global human population, which is expected to reach 10 billion by 2050. Fruits and vegetables contain most of the minerals, micronutrients, and phytonutrients essential for human nutrition and health. The quantity of these phytochemicals depends on crop genetics, weather and environmental factors, growth conditions, and pre-harvest and post-harvest treatments. These phytochemicals are known to have anti-cancer properties and to regulate immunity, in addition to hypolipidemic, antioxidant, anti-aging, hypotensive, hypoglycemic, and other pharmacological properties. Physical treatments have been reported to be effective for managing several post-harvest diseases and physiological disorders. These treatments may affect the external, internal, and nutritional qualities of fruits and vegetables. Therefore, the aim of this review is to summarize the information recently reported regarding the use of physical treatments applied either directly or in combination with other means to maximize and maintain the phytochemical content of fresh and fresh-cut or processed fruits and vegetables.

scholarly journals Chemical Composition and Antimicrobial Properties of Mentha × piperita cv. ‘Kristinka’ Essential Oil

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1567
Author(s):  
Ippolito Camele ◽  
Daniela Gruľová ◽  
Hazem S. Elshafie
Keyword(s):  
Antifungal Activity ◽  
Xanthomonas Campestris ◽  
Fruits And Vegetables ◽  
Antimicrobial Properties ◽  
Pathogenic Fungi ◽  
Cell Membrane Permeability ◽  
Penicillium Expansum ◽  
Mentha Piperita ◽  
Plant Essential Oils ◽  
Main Components

Several economically important crops, fruits and vegetables are susceptible to infection by pathogenic fungi and/or bacteria postharvest or in field. Recently, plant essential oils (EOs) extracted from different medicinal and officinal plants have had promising antimicrobial effects against phytopathogens. In the present study, the potential microbicide activity of Mentha × piperita cv. ‘Kristinka’ (peppermint) EO and its main constituents have been evaluated against some common phytopathogens. In addition, the cell membrane permeability of the tested fungi and the minimum fungicidal concentrations were measured. The antifungal activity was tested against the following postharvest fungi: Botrytis cinerea, Monilinia fructicola, Penicillium expansum and Aspergillus niger, whereas antibacterial activity was evaluated against Clavibacter michiganensis, Xanthomonas campestris, Pseudomonas savastanoi and P. syringae pv. phaseolicola. The chemical analysis has been carried out using GC-MS and the main components were identified as menthol (70.08%) and menthone (14.49%) followed by limonene (4.32%), menthyl acetate (3.76%) and β-caryophyllene (2.96%). The results show that the tested EO has promising antifungal activity against all tested fungi, whereas they demonstrated only a moderate antibacterial effect against some of the tested bacteria.

Induction of natural defense and protection against Penicillium expansum and Botrytis cinerea in apple fruit in response to bioelicitors isolated from green algae

2015 ◽  
Vol 181 ◽  
pp. 121-128 ◽  
Author(s):  
E. Abouraïcha ◽  
Z. El Alaoui-Talibi ◽  
R. El Boutachfaiti ◽  
E. Petit ◽  
B. Courtois ◽  
...  
Keyword(s):  
Botrytis Cinerea ◽  
Green Algae ◽  
Apple Fruit ◽  
Penicillium Expansum ◽  
Natural Defense

Control of Penicillium Expansum and Botrytis Cinerea on Apple Fruit by Mixtures of Bacteria and Yeast

2008 ◽  
Vol 3 (5) ◽  
pp. 644-650 ◽  
Author(s):  
Juan Calvo ◽  
Viviana Calvente ◽  
María E. Orellano ◽  
Delia Benuzzi ◽  
Maria I. Sanz
Keyword(s):  
Botrytis Cinerea ◽  
Apple Fruit ◽  
Penicillium Expansum

scholarly journals Ethylene induces soil microbes to delay fruit ripening

2014 ◽  
Author(s):  
Guenevere Perry ◽  
Diane Williams
Keyword(s):  
Fruit Ripening ◽  
Fruits And Vegetables ◽  
Soil Microbes ◽  
Low Cost ◽  
Ripening Process ◽  
Post Harvest ◽  
Climacteric Fruit ◽  
Low Concentrations ◽  
Transportation Container ◽  
Post Harvest Loss

The consumer demand for fresh fruits and vegetables increases every year, and farmers need a low cost novel method to reduce post-harvest loss and preserve the quality of fresh fruits and vegetables. This study identifies a method to induce soil bacteria to biosynthesize a nitrile compound that potentially enters the plants tissue and negatively affects climacteric ripening and delays the ripening process at 20-30˚C. This study used soil rich with soil microbes, to delay the ripening of climacteric fruit. The soil was treated with nitrogen, a heavy metal, and ethylene gas. Ethylene induced the soil to delay the ripening of organic bananas and peaches. A prototype transportation container maintained fruit fresh for up to 72 h at 20-30˚C. The fruit retained color, firmness, texture, no bruising and minimal spotting. The soil also prevented fungal infection in all samples. GC-MS analysis suggests ethylene induced the soil microbes to release an acetonitrile compound into the gaseous environment. The nitrile is released in low concentrations, but mature plants (fruits) contain very low levels of indole-3-acetonitrile (IAN) or indole-3-acetic acid (IAA). The nitrile may obstruct or modify the mature plants (fruit) late stages development process, thus delay the climacteric ripening process and retarding the physiological and phenotypic effects of fruit ripening. We believe this study may have strong applications for post-harvest biotechnology.

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