Phytochemicals in Ocimum basilicum and Parkia biglobosa vs. Bemisia tabaci.

aleyrodidae) of tomato (lycopersicum escule

| Posted in: Science

Journal name: World Journal of Pharmaceutical Research
Original article title: Phytochemical composition and biological efficiency of ocimum basilicum l. leaves, parkia biglobosa (jacq.) r. br ex g. don pods, powders organic extracts against bemisia tabaci biotype b (gennadius) (hemiptera
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Subtitle: aleyrodidae) of tomato (lycopersicum escule

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Author:

Ouedraogo Bouraïma, Kambou Georges, Yaro Boubacar and Nacro H. Bismarck


World Journal of Pharmaceutical Research:

(An ISO 9001:2015 Certified International Journal)

Full text available for: Phytochemical composition and biological efficiency of ocimum basilicum l. leaves, parkia biglobosa (jacq.) r. br ex g. don pods, powders organic extracts against bemisia tabaci biotype b (gennadius) (hemiptera

Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research

Doi: 10.20959/wjpr20199-15476

Copyright (license): WJPR: All rights reserved


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Summary of article contents:

Introduction

The article presents a study conducted on the phytochemical composition and biological efficacy of various natural extracts against the insect pest Bemisia tabaci (whitefly), which poses a significant threat to tomato crops in Burkina Faso. The study focuses on the extraction of organic substances from six different plant species and their subsequent testing under controlled laboratory conditions to determine their effectiveness. The research underscores the increasing need for alternative pest control methods, particularly due to rising resistance to synthetic insecticides and the necessity to protect both consumers and the environment from harmful chemicals.

Efficacy of Plant Extracts Against Whiteflies

The biological efficiency of organic extracts derived from Ocimum basilicum (basil) and Parkia biglobosa (African locust bean) was a focal point of the research. Findings revealed that these extracts exhibited significant insecticidal properties, with mortality rates increasing over time. Specifically, the methanol extract of O. basilicum led to a mortality rate of 38.3% after 24 hours and an impressive 86.32% after 72 hours. Similarly, the extract from P. biglobosa showed a mortality rate of 36.58% after 24 hours, which increased to 83.74% after 72 hours, demonstrating the potential for these natural substances to serve as effective biopesticides.

Extraction Yields and Phytochemical Composition

The study utilized three solvents of varying polarities—n-hexane, ethyl acetate, and methanol—for the extraction process, revealing the yields of different plant extracts. The methanol extraction from P. biglobosa yielded the highest percentage (44.09%), indicating the presence of more polar constituents. Phytochemical analysis of the extracts showed a range of chemical groups, with O. basilicum containing a rich diversity of bioactive compounds including tannins, saponins, flavonoids, and alkaloids. This diversity of chemical constituents likely contributes to the plant extracts' insecticidal efficacy against whiteflies.

Comparison of Extracts and Historical Context

Additionally, the paper discusses previous findings related to the insecticidal action of other plants like Cassia nigricans and C. occidentalis, pointing to a growing body of evidence supporting the efficacy of aromatic and medicinal plants against agricultural pests. The research highlights the historical context of pest management in Burkina Faso, shedding light on the economic significance of tomato production in the region and the challenges posed by pests and diseases. These factors create a critical need for sustainable pest management strategies that leverage the potential of local plant resources.

Conclusion

In conclusion, the study demonstrates that the extracts from Ocimum basilicum and Parkia biglobosa not only possess noteworthy insecticidal properties but also represent a promising avenue for the development of biopesticides. The increasing mortality rates demonstrate the potential of these natural options to enhance pest management in tomato cultivation and reduce reliance on synthetic pesticides. This research serves as a vital step toward promoting environmentally friendly agricultural practices that prioritize consumer safety and ecological balance. Further exploration, including field tests and active ingredient characterization, is essential for the practical application of these findings in sustainable agriculture.

FAQ section (important questions/answers):

What was the focus of the study conducted in Burkina Faso?

The study focused on the biological efficiency of organic extracts from six natural substances against the whitefly, Bemisia tabaci, a significant pest affecting tomato crops.

Which natural substances were tested for insecticidal activity?

The study tested extracts from Ocimum basilicum, Parkia biglobosa, Cleome viscosa, Mytragina inermis, Cassia nigricans, and Cassia occidentalis.

What extraction methods were used in the study?

Natural substances were extracted using three solvents of varying polarities: n-hexane, ethyl acetate, and methanol, following the Nair method.

Which extract showed the highest mortality rate against whiteflies?

The methanol extract of Ocimum basilicum demonstrated the highest mortality rate of 38.3% after 24 hours and 86.32% after 72 hours.

What were the yields of the different extracts tested?

Yields varied significantly, with best polar extract yields like Parkia biglobosa at 44.09%, and others ranging from 0.45% to 5.65%.

What can be concluded from the study on natural extracts?

The study concluded that organic extracts from Ocimum basilicum and Parkia biglobosa possess insecticidal properties and could be potential biopesticides for tomato pest management.

Glossary definitions and references:

Scientific and Ayurvedic Glossary list for “Phytochemicals in Ocimum basilicum and Parkia biglobosa vs. Bemisia tabaci.”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.

1) Substance:
The term 'substances' encompasses a range of natural extracts and compounds analyzed in the study. Understanding these substances is critical for evaluating their efficacy and potential application in pest control, offering insights into how plant-derived materials can serve as alternatives to synthetic pesticides in agriculture.

2) Phytochemical:
Phytochemicals are bioactive compounds found in plants that have various health benefits and biological activities. In this study, the phytochemical composition of the plant extracts is analyzed to identify chemical groups responsible for insecticidal properties against pests, which can ultimately contribute to sustainable pest management strategies.

3) Insect:
Insects, particularly pest species, play a significant role in the context of the research as they threaten crop production. The study aims to understand how plant extracts can effectively combat insect populations, thereby protecting crops from damage and ensuring agricultural sustainability.

4) Study (Studying):
The study refers to the comprehensive research project that evaluates the biological efficiency of various plant extracts against whiteflies. Its outcomes are significant for advancing knowledge in pest management and highlighting eco-friendly agricultural practices that can reduce dependence on harmful chemicals.

5) Table:
In research contexts, tables are essential for summarizing data and presenting findings, such as yields and mortality rates of insect pests. They facilitate the comparison of results across different experiments, aiding in the interpretation of the effectiveness of the organic extracts being tested.

6) Observation:
Observation is a crucial aspect of the experimentation process, allowing researchers to collect data on the efficacy of the plant extracts over time. The mortality rates of whiteflies are monitored at specific intervals, providing insights into the temporal efficacy of the natural substances against insect pests.

7) Crop:
Crops encompass a variety of cultivated plants for food and economic purposes. The research specifically targets tomato crops affected by pests, highlighting the significance of developing effective pest control solutions that secure crop health and production for farmers and consumers alike.

8) Water:
Water is a fundamental solvent used throughout the extraction and experimentation processes. Its role in dissolving active compounds from plant materials is pivotal for evaluating the biological properties of the extracts, making it integral to assessing their effectiveness as potential insecticides.

9) Insect pest:
Insect pests like Bemisia tabaci are significant threats to crop health and yield. The study focuses on these pests to develop effective organic extracts that can control their populations, thereby reducing the damage caused to crops and minimizing the reliance on chemical pesticides.

10) Flavonoid:
Flavonoids are a class of phytochemicals known for their antioxidant and potential insecticidal properties. The relevance of flavonoids in this study lies in analyzing how they contribute to the effectiveness of plant extracts against insect pests, offering a pathway for natural pest control solutions.

11) Medium:
The term 'medium' is used to describe the polarity of the solvents utilized in the extraction process. Understanding the polarity of the extraction medium is essential for maximizing the yield of bioactive compounds from plant materials, which affects the overall effectiveness of the organic extracts.

12) Powder:
Powder refers to the finely ground form of the plant materials used in the study for extraction. Utilizing powders of dried plant materials allows researchers to increase the surface area for solvent interaction, enhancing the extraction efficiency of bioactive compounds necessary for evaluating biological efficacy.

13) Rich (Rch):
'Rich' describes the abundance of bioactive compounds present in the plant extracts. The availability of compounds like flavonoids and triterpenes contributes to the potential insecticidal properties of the extracts, emphasizing the importance of chemical diversity for effective pest management strategies.

14) Activity:
Activity refers to the biological effects exhibited by the plant extracts against insect pests. Understanding the activity levels of different extracts is crucial in determining their practical application and effectiveness as biopesticides, guiding future research towards sustainable agricultural practices.

15) Transmission:
Transmission refers to the way insects can spread pathogens, impacting crop health. The study highlights the importance of understanding these transmission mechanisms to develop effective pest management strategies that can minimize crop loss due to viral infections facilitated by insect pests.

16) Pesticide:
Pesticides are substances used to kill or control pests, but their synthetic variants can have harmful effects on health and the environment. This research focuses on natural pesticides derived from plant extracts, promoting environmentally friendly alternatives that can target pest management without adverse consequences.

17) Farmer:
Farmers are the primary stakeholders in agriculture, responsible for crop production and management. Understanding farmer needs for effective pest control methods is essential for developing practical applications of the research findings, ultimately benefiting their livelihoods and enhancing food production sustainability.

18) Mango:
Mango is included in the context of pest control, as pesticides like methyl eugenol are used for managing insect pests related to mango cultivation. Knowledge from this study can extend to similar practices in mango and other fruit production systems, promoting integrated pest management strategies.

19) Hand:
Hand signifies the manual control and management practices employed by farmers in agriculture. The study underscores the need for hands-on methods in integrating new biopesticides derived from plants, thereby involving farmers directly in sustainable pest management practices that promote crop health.

20) Viru:
Viru, or viruses, are pathogens that can drastically affect crop yields, especially in plants like tomatoes. Understanding their transmission by insect pests is critical for effective pest management strategies, highlighting the relationship between insect control and disease prevention in agricultural practices.

21) Purification:
Purification is a critical process in isolating active compounds from plant extracts for further analysis. The study emphasizes the need for purification methods to enhance the efficacy of natural insecticides, which can lead to the development of effective biopesticides for pest management.

22) Agriculture:
Agriculture is the overarching field that encompasses the cultivation of plants and rearing of animals for food production. The research contributes to agricultural science by exploring sustainable pest control options, promoting ecological farming practices that benefit both farmers and the environment.

23) Discussion:
The discussion section in research allows for interpretation of results and implications of findings. It provides context regarding the efficacy of plant extracts, potential practical applications, and future avenues for research, fostering a deeper understanding of sustainable pest management in agriculture.

24) Annihilation (Annihilated, Annihilate):
'Annihilate' refers to the complete destruction of crop yields due to pest infestation or viral diseases. Understanding the severity of pest impacts emphasizes the need for effective control measures, such as biopesticides derived from natural extracts, to protect crops from potential annihilation.

25) Toxicity:
Toxicity indicates the harmful effects that substances can have on living organisms. The study examines the toxicity of plant-derived compounds towards insect pests, aiming to identify natural alternatives to synthetic pesticides that can minimize adverse effects on human health and the environment.

26) Medicine:
Medicine is relevant in this context as it addresses the health implications of using chemical pesticides. The study advocates for the utilization of plant extracts as potential natural remedies, paralleling the use of medicinal properties found in plants for health benefits and sustainable pest management.

27) Science (Scientific):
Science represents the systematic approach to studying natural phenomena. The research exemplifies scientific inquiry into the efficacy of natural substances against pests, fostering advancements in sustainable pest management practices that align with ecological principles and contribute to overall agricultural health.

28) Disease:
A disease is an affliction that impacts plant health, often leading to reduced yields and crop loss. Understanding the relationship between pests and disease transmission is vital for developing effective management strategies that mitigate the risks posed by these agricultural challenges.

29) Family:
Family refers to the taxonomic classification of various plants and insects. Understanding family traits aids in exploring the biological efficacy of different plant extracts, enhancing the development of targeted strategies for natural pest control based on specific characteristics of these families.

30) Reason:
Reason relates to the rationale behind conducting this study, primarily the quest for sustainable pest management solutions that reduce the reliance on harmful chemical pesticides. Understanding the underlying reasons for exploring natural alternatives is key for advancing agricultural practices and environmental conservation.

31) Animal:
Animals, particularly those involved in agriculture, can be affected by pest management strategies. Understanding the ecological impact of using plant extracts for pest control is essential for ensuring that these practices do not harm beneficial animal species within agricultural ecosystems.

32) Flying:
Flying refers to the mobility of insect pests, like whiteflies, which can rapidly spread and infest crops. This characteristic emphasizes the need for effective pest control measures that can promptly address infestations and minimize damage to crops and agricultural productivity.

33) Cotton:
Cotton in this context may refer to the use of cotton materials in laboratory practices, such as for filtration or as a growth medium. Additionally, cotton may symbolize agricultural crops impacted by the findings of the study, highlighting the relevance of pest control across different farming contexts.

34) Indian:
Indian refers to the regional context of Ocimum basilicum, which varies by location in terms of its phytochemical composition and efficacy against pests. Understanding the regional variations is crucial for optimizing the use of plant extracts in pest management practices.

35) Field:
Field refers to the practical application of research findings in an agricultural setting. This highlights the importance of conducting field tests to validate the laboratory results, ensuring that the efficacy of natural pest control methods translates effectively into real-world farming environments.

36) Lemon:
Lemon could refer to the experiments involving various plant extracts, including potential studies on lemon-derived substances. The application of lemon extracts for pest control purposes can reflect a broader strategy of using citrus plants in natural pest management solutions within agriculture.

37) Tree:
Tree refers to woody plants that can be integral to agricultural ecosystems. The importance of trees includes fostering biodiversity, influencing pest activity, and providing resources for integrated pest management approaches that cater to sustainable farming practices.

38) Beta:
Beta can refer to beta-sitosterol, a natural phytochemical that may play a role in the insecticidal properties of plant extracts. Understanding its presence in the study provides insight into the mechanisms of action within the realm of natural pest management strategies.

39) Moth:
Moth represents specific insect pests related to crop damage. In the agricultural context, understanding the interactions between moths and plant extracts can aid in developing targeted measures to mitigate their impact on crops while promoting sustainable agricultural practices.

40) Hair:
Hair, in a biological context, could refer to the physical characteristics of plant materials, influencing their extraction efficacy. Understanding these features can be essential for optimizing plant-derived substance applications in pest management strategies, particularly concerning texture and potential bioactivity.

41) Line:
Line can indicate the lineage or cultivar of specific plants examined in the study. Recognizing the importance of plant lineage aids in establishing targeted pest management practices based on desirable traits that can increase efficacy against insect pests.

42) Salt (Salty):
Salt's relevance in agriculture may relate to soil health and nutrient management. Understanding its effects on plants and insects allows for a more holistic approach to pest control strategies, as maintaining health within the ecosystem is crucial for sustainability.

43) Soil:
Soil is essential for agriculture as it provides the foundation for plant growth. The study acknowledges the relationship between soil health and pest management, emphasizing the importance of soil quality for healthy crop production and effective pest control practices.

44) Dish (Dis):
Dish usually refers to petri dishes utilized for laboratory observations and experiments regarding insect mortality rates. The use of dishes is significant for controlling experimental conditions, allowing researchers to assess the efficacy of plant extracts against insect pests systematically.

Other Science Concepts:

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Discover the significance of concepts within the article: ‘Phytochemicals in Ocimum basilicum and Parkia biglobosa vs. Bemisia tabaci.’. Further sources in the context of Science might help you critically compare this page with similair documents:

Ocimum basilicum, Insect pest, Mortality Rate, Phyto-chemical analysis, Plant Extract, Extraction solvent, Active fraction, Chemical group, Organic extract, Field test, Natural substance.

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