scholarly journals Plant extracts - importance in sustainable agriculture

2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Katarzyna Godlewska ◽  
Domenico Ronga ◽  
Izabela Michalak
Keyword(s):  
Natural Products ◽  
Sustainable Agriculture ◽  
Bioactive Compounds ◽  
Plant Extracts ◽  
Crop Protection ◽  
Cultivated Plants ◽  
Positive Effects ◽  
Environmentally Safe ◽  
New Generation ◽  
The Impact

Plants due to the high content of various bioactive compounds are the main raw material for production of valuable, and useful bio-products (e.g., food, cosmetics, medicines, biostimulants, biopesticides, and feed). Different plant parts, for instance: seeds, fruits, flowers, stems, leaves, and roots can be used for their manufacture. Nowadays, there is a clear need to develop new, efficient, and environmentally safe methods of stimulation of plant, growth and crop protection. Plant-based extracts are new, natural, and multi-compounds products that could be used for these purposes. They possess antifungal, antimicrobial, antiparasitic, antiprotozoal, antioxidant, medicinal, aromatic, and anti-inflammatory properties. This group of natural products has the potential to become a new generation of bio-products suitable for use in sustainable agriculture. The purpose of this review is to provide an overview of the literature describing the impact of plant-derived extracts/biostimulants (PDBs) on crops grown in controlled, and real conditions as well as under various abiotic and biotic stresses; the extraction methods used to obtain PDBs, and the specific constituents responsible for their biostimulating activity. The application of these bio-products could be beneficial for sustainable production, due to several advantages, such as low toxicity to humans and the environment, enhanced resistance of cultivated plants to biotic and abiotic stress, increased yields and quality of crops, as well as the reduction in the use of mineral fertilisers and pesticides. However, deeper cooperation between industrial and academic research is required to accelerate the development of new environmentally safe solutions for future agriculture. Highlights - Higher plants constitute a rich source of various bioactive compounds for the production of useful natural products. - The importance of the proper choice of extraction method and solvent to process and preserve the desired substances.- Plant extracts as biostimulants and plant protection products for use in modern and sustainable agriculture. - The positive effects of plant-based extracts on plants cultivated under normal and unfavourable conditions.- Plant extracts as a new generation of eco-friendly products for the increment of the production of high-quality food.

The new age of insecticide discovery-the crop protection industry and the impact of natural products

2019 ◽  
Vol 161 ◽  
pp. 12-22 ◽  
Author(s):  
Thomas C. Sparks ◽  
Frank J. Wessels ◽  
Beth A. Lorsbach ◽  
Benjamin M. Nugent ◽  
Gerald B. Watson
Keyword(s):  
Natural Products ◽  
Crop Protection ◽  
New Age ◽  
The Impact

scholarly journals Double-Stranded RNA Targeting Dicer-Like Genes Compromises the Pathogenicity of Plasmopara viticola on Grapevine

2021 ◽  
Vol 12 ◽  
Author(s):  
Zeraye Mehari Haile ◽  
Daniel Endale Gebremichael ◽  
Luca Capriotti ◽  
Barbara Molesini ◽  
Francesca Negrini ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Crop Protection ◽  
Plasmopara Viticola ◽  
Management Options ◽  
Double Stranded Rna ◽  
Rna Targeting ◽  
Environmentally Safe ◽  
Progress Rate ◽  
New Generation ◽  
Established Infection

Downy mildew caused by Plasmopara viticola is one of the most devastating diseases of grapevine, attacking all green parts of the plant. The damage is severe when the infection at flowering stage is left uncontrolled. P. viticola management consumes a significant amount of classical pesticides applied in vineyards, requiring efficient and environmentally safe disease management options. Spray-induced gene silencing (SIGS), through the application of exogenous double-stranded RNA (dsRNA), has shown promising results for the management of diseases in crops. Here, we developed and tested the potential of dsRNA targeting P. viticola Dicer-like (DCL) genes for SIGS-based crop protection strategy. The exogenous application of PvDCL1/2 dsRNA, a chimera of PvDCL1 and PvDCL2, highly affected the virulence of P. viticola. The reduced expression level of PvDCL1 and PvDCL2 transcripts in infected leaves, treated with PvDCL1/2 dsRNA, was an indication of an active RNA interference mechanism inside the pathogen to compromise its virulence. Besides the protective property, the PvDCL1/2 dsRNA also exhibited a curative role by reducing the disease progress rate of already established infection. Our data provide a promising future for PvDCL1/2 dsRNA as a new generation of RNA-based resistant plants or RNA-based agrochemical for the management of downy mildew disease in grapevine.

scholarly journals EFFECTS OF NATURAL BIOACTIVE COMPOUNDS ON MICROBIAL SAFETY AND QUALITY OF DAIRY PRODUCTS

2021 ◽  
Vol XXVIII (2) ◽  
pp. 149-160
Author(s):  
Liliana Popescu ◽  
Keyword(s):  
Antimicrobial Activity ◽  
Food Safety ◽  
Bioactive Compounds ◽  
Plant Extracts ◽  
Dairy Products ◽  
Antimicrobial Agents ◽  
Natural Antimicrobial ◽  
The Impact ◽  
Spoilage Microorganisms

Dairy products are susceptible to contamination by foodborne pathogenic and spoilage microorganisms, which can result to a reduced shelf life of products as well as risks to the consumers’health. This determines the possible use of preservatives in the manufacturing process of dairy products. Consumers require healthy food, free of synthetic preservatives, looking for natural alternatives to ensure food safety. Just for this reason, natural ingredients are receiving increasing attention as substitutes for synthetic additives. Currently, research is focusing on the identification of natural antimicrobial agents, especially from plants such as fruits, vegetables, herbs and spices, as they contain significant amounts of compounds with antimicrobial activity. In addition, plants contain bioactive compounds, which could provide health benefits in preventing many diseases. This review aims to discuss the impact of natural antimicrobials on foodborne pathogenic and spoilage microorganisms in products, the antimicrobial efficacy of plant extracts and essential oils and the impact of their incorporation on the sensory characteristics of dairy products such as yogurts, cheeses, butter and ghee.

scholarly journals Bioactivity of Plant Extracts against Cowpea Bruchid Callosobruchus maculatus (Fab): A Review

2020 ◽  
Author(s):  
C. Shunmugadevi ◽  
S. Anbu Radhika
Keyword(s):  
Natural Products ◽  
Bioactive Compounds ◽  
Plant Extract ◽  
Plant Extracts ◽  
Callosobruchus Maculatus ◽  
Biological Activities ◽  
Botanical Insecticides ◽  
High Concentration ◽  
Plant Products ◽  
Wide Range

The objective of the present review is to know the bioactive compounds of the plant extract against Callosobruchus maculatus. Plants are able to produce a large number of bioactive compounds. Plant extract was found to have a wide range of bioactive compounds like Alkaloids, Carbohydrates, Starch, Glycosides, Flavonoids, Triterpenoids, Resins, Saponins, Steroid, Proteins and Tannins. The high concentration of phytochemicals protects against the Callosobruchus maculatus. Recent revelations have shown that synthetic insecticides were found to penetrate into grains and may be toxic. Natural products such as botanical insecticides may provide suitable alternatives. The review obviously designated that plant products have potentials of controlling Callosobruchus maculatus in stored cowpea as they are safe, free of residue and strong biological activities that are eco-friendly and biodegradable.

Identifying Natural Products (NPs) as potential UPR inhibitors for crop protection

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381 ◽  
Author(s):  
A Bruguière ◽  
AM Le Ray ◽  
D Bréard ◽  
N Blon ◽  
N Bataillé ◽  
...  
Keyword(s):  
Natural Products ◽  
Crop Protection

Overcoming stereotypes of renewable energy

2019 ◽  
pp. 124-136
Author(s):  
Victor D. Gazman
Keyword(s):  
Renewable Energy ◽  
Empirical Analysis ◽  
Energy Generation ◽  
New Paradigm ◽  
Financial Instrument ◽  
Promising Direction ◽  
Investment Projects ◽  
Power Stations ◽  
New Generation ◽  
The Impact

The article considers prerequisites for the formation of a new paradigm in the energy sector. The factors that may affect the imminent change of leadership among the energy generation are analyzed. The variability of the projects of creation and functioning of power stations is examined. The focus is made on problematic aspects of the new generation, especially, storage and supply of energy, achieving a system of parity that ensures balance in pricing generations. The author substantiates the principles of forming system of parities arising when comparing traditional and new generations. The article presents the results of an empirical analysis of the 215 projects for the construction of facilities for renewable energy. The significance and direction of the impact of these factors on the growth in investment volumes of transactions are determined. The author considers leasing as an effective financial instrument for overcoming stereotypes of renewable energy and as a promising direction for accelerated implementation of investment projects.

Income Diversification and Bank Efficiency in Vietnam

2017 ◽  
pp. 52-67
Author(s):  
Sang Nguyen Minh
Keyword(s):  
Regression Model ◽  
Commercial Banks ◽  
Banking System ◽  
Operational Efficiency ◽  
Commercial Banking ◽  
Tobit Regression ◽  
Income Diversification ◽  
Positive Effects ◽  
Study Results ◽  
The Impact

This study uses the DEA (Data Envelopment Analysis) method to estimate the technical efficiency index of 34 Vietnamese commercial banks in the period 2007-2015, and then it analyzes the impact of income diversification on the operational efficiency of Vietnamese commercial banks through a censored regression model - the Tobit regression model. Research results indicate that income diversification has positive effects on the operational efficiency of Vietnamese commercial banks in the research period. Based on study results, in this research some recommendations forpolicy are given to enhance the operational efficiency of Vietnam’s commercial banking system.

Impact of Digitalization on Service Work in Knowledge-Intensive Business Services: An Empirical Study in Tax Consultancies

2019 ◽  
Vol 3 (4) ◽  
pp. 209-222
Author(s):  
Philipp K. Görs ◽  
Henning Hummert ◽  
Anne Traum ◽  
Friedemann W. Nerdinger
Keyword(s):  
Work Engagement ◽  
Service Work ◽  
Psychological Consequences ◽  
Business Services ◽  
Knowledge Intensive Business Services ◽  
Positive Effects ◽  
Knowledge Intensive ◽  
The Impact ◽  
Positive Effect ◽  
Special Case

Digitalization is a megatrend, but there is relatively little knowledge about its consequences for service work in general and specifically in knowledge-intensive business services (KIBS). We studied the impact of digitalization on psychological consequences for employees in tax consultancies as a special case of KIBS. We compare two tax consulting jobs with very different job demands, those of tax consultants (TCs) and assistant tax consultants (ATCs). The results show that the extent of digitalization at the workplace level for ATCs correlates significantly positively with their job satisfaction. For TCs, the same variable correlates positively with their work engagement. These positive effects of digitalization are mediated in the case of ATCs by the impact on important job characteristics. In the case of TCs, which already have very good working conditions, the impact is mediated by the positive effect on self-efficacy. Theoretical and practical consequences of these results are discussed.

DECONTAMINATION OF VETERINARY SURVEILLANCE OBJECTS BY NEW GENERATION MEDICINE

1970 ◽  
pp. 64-67
Author(s):  
М. S. Saypullaev ◽  
А. U. Koychuev ◽  
Т. B. Mirzoeva
Keyword(s):  
Staphylococcus Aureus ◽  
Inhalation Exposure ◽  
Gram Negative Bacteria ◽  
Hazard Class ◽  
E Coli ◽  
Highly Efficient ◽  
Mucous Membranes ◽  
Environmentally Safe ◽  
New Generation ◽  
And Staphylococcus Aureus

The successful conduct of disinfection measures largely depends on the availability of veterinary practice a highly efficient, environmentally safe disinfectants. In this regard, finding new highly efficient disinfectant remains relevant. Studies found that the "Polied" (OOO "Razvitie XXI Vek, Russia) can be attributed to the highly efficient and environmentally friendly means. Solutions "Polied" have a high disinfectant activity against smooth and rough surfaces in the laboratory against gram-positive, gram-negative bacteria, mycobacteria and spores of microorganisms. Studies have established that solutions should be "Polied" obezzarajivatmi E. coli (EA 1257) concentrations of 0.1% on smooth surfaces and Staphylococcus aureus concentration of 0.05% in 1 hour from the calculation of 0.25-0.3 litres/m2. Disinfection of rough test surfaces against Escherichia coli and Staphylococcus aureus occurred after treatment with 0,3% solution of 3-hour exposure, at a rate of 0.5 l/m2. It was also found that 1.0% solution "Polied" fully obezzarazhivatel test the surface of mycobacteria (PCs-5) and at double the 0.6% concentration for 24 hours. Disinfection of rough test surfaces contaminated with spores of B. cereus (PCs 96) was achieved with a 4.0% solution at twice the irrigation rate of 0.5 l/m2 at an exposure of 24 hours. Toxicity solutions of the drug "Polied" refer to "moderate" threat (hazard class 3) and low-hazard substances (4 hazard class) when applied to the skin, mucous membranes of the eyes, and inhalation exposure on the respiratory system.

Sign in / Sign up

Export Citation Format

Share Document