Jatropha curcas L. (Euphorbiaceae) is a multipurpose perennial shrub/small tree, native to Mexico and Subtropical America, now grows naturally in most tropical areas of the world. It is an underutilized plant of multiple values. It is cultivated for seeds, having liquid biofuel potential and as live fence for the protection of agricultural crops. Various parts of the J. curcas are globally used for healthcare management of plants, human being and domesticated animals. Besides ethnomedicinal usages, this species have much other ethnobotanical, economic and ecological importance. Present book deals with origin and distribution, taxonomic description, propagation and cultivation, utilization, pharmacological activities, phytochemical properties and future prospective of this species.
Table of Contents
1. Introduction
1.1 Origin and distribution
1.2 Morphological description
2. Propagation and cultivation
3. Utilization
3.1 Pharmacological activities
3.1.1. Anti-bacterial Activity
3.1.2. Anti-fungal activity
3.1.3 Antiviral activity
3.1.4 Anti-inflammatory activity
3.1.5 Anti-oxidant activity
3.1.6. Coagulant and anticoagulant activities
3.1.7. Anti-diarrhoeal activity
3.1.8. Pregnancy terminating effect
3.1.9. Wound healing activity
3.1.10. Insecticidal, larvicidal and anthelmintic activity
4. Phytochemicals
5. Future perspective
Objectives and Topics
This paper aims to provide a comprehensive review of the multipurpose plant Jatropha curcas, covering its origins, botanical characteristics, propagation methods, and its diverse utilization in medicine, agriculture, and bio-fuel production. It examines the plant's pharmacological potential and phytochemical properties to highlight its role as a valuable genetic resource.
- Botany and distribution of Jatropha curcas
- Cultivation and propagation techniques for large-scale production
- Pharmacological and medicinal applications
- Phytochemical profile and bioactive components
- Future research perspectives and commercial challenges
Excerpt from the Book
1.2 Morphological description
J curcas is a multipurpose perennial shrub/small tree of 3-6 m height. It may be evergreen or deciduous, depending on climate. It has a short tap root, robust laterals, and many fine tertiary roots. The stem is woody, erect, cylindrical, solid and branched. Branches are stout, green, and semi woody. Leaves are palmate and have 5 to 7 shallow lobes and are arranged in alternate with spiral phyllotaxis. Length and widths of leaves varies from 16 to 21 and 14 to 18 cm and are cauline and ramel, ex-stipulate, petiolate. Petioles are 12–19 cm long. Venation is multicostate, reticulate, and divergent type.
J curcas is monoecious and the terminal inflorescences contain unisexual greenish yellow 17-105 male and 2-19 female flowers in loose panicle of cymes. The ratio of male to female flowers ranges from 13:1 to 29:1. The inflorescence is composed by a main florescence and a distinct coflorescence. There are nodes on the upper pedicels of male (staminate) flowers, and no node on the upper pedicels of female (pistillate) flowers. The flowers are tiny (about 7 mm), unisexual, regular, petals are oblong and light green in colour, and sepals are quinquepartite. Androecium is absent in female flower, present in male flower with ten stamens. Stigma are six furcated, dorsifixed and introrse. Gynoecium is absent in male flowers, but present in female flowers and is tricarpellary, syncarpous with trilocular, and superior ovary. Flowers are pollinated by moths and bees. Fruits trilocullar, ellipsoidal, sudrupaceous. The exocarp remains fleshy until the seeds become mature, finally separating into three cocci. The fruit is 2.5-3.5 cm long to 2-2.5 cm wide. Seeds are black, oblong, 2.5 to 3 cm long and 1 cm thick, more or less spherical or ellipsoidal (Figure 1). Seed weight (10 seed) ranges from 53-77 g which contains 13.06-42.41 % oil content.
Summary of Chapters
1. Introduction: This chapter provides an overview of the plant's classification, botanical name, and its significance as a multipurpose crop with global distribution.
2. Propagation and cultivation: This section details the technical aspects of growing Jatropha curcas, including soil requirements, planting distances, and fertilizer management for commercial seed production.
3. Utilization: This chapter explores the diverse applications of the plant, from its use as a biofuel source to its role in phytoremediation and soil conservation.
4. Phytochemicals: This chapter examines the chemical constituents of the plant, including alkaloids, diterpenes, and other toxic or bioactive compounds present in various parts.
5. Future perspective: This chapter discusses the challenges and potential research directions necessary for the commercial success of the plant as a viable bio-energy and pharmaceutical resource.
Keywords
Ethnobotany, Ethnomedicine, Euphorbiaceae, Jatropha curcas, Underutilized crop, Biofuel, Pharmacology, Phytochemistry, Seed production, Soil management, Anti-bacterial, Anti-fungal, Anti-inflammatory, Larvicidal, Traditional medicine.
Frequently Asked Questions
What is the primary focus of this paper?
The paper focuses on Jatropha curcas as a multipurpose plant, specifically reviewing its biological potential for medicinal uses and its capacity for large-scale liquid bio-fuel production.
What are the central thematic fields covered?
The central themes include the plant's botanical morphology, agronomic cultivation practices, pharmacological activities, phytochemical composition, and future economic prospects.
What is the primary goal of the study?
The primary goal is to provide a comprehensive scientific review of Jatropha curcas to consolidate existing knowledge on its diverse values and to identify necessary research for its commercialization.
Which scientific methods are discussed in the work?
The work reviews various extraction methods (acetone, methanol, water, etc.) for assessing medicinal properties and summarizes experimental agronomic studies regarding pruning, fertilizer use, and pest management.
What is covered in the main section of the paper?
The main sections cover the origin, botanical description, methods for propagation and cultivation, a detailed list of pharmacological activities, and a summary of the plant's chemical constituents.
Which keywords characterize this work?
Key terms include Ethnobotany, Jatropha curcas, Biofuel, Phytochemistry, Pharmacological activity, and Underutilized crop.
How does the plant contribute to medicine?
Various parts of Jatropha curcas (leaves, bark, latex, roots) exhibit anti-bacterial, anti-fungal, anti-inflammatory, and wound-healing properties as documented in traditional medicinal practices and clinical assessments.
What is the significance of the oil extracted from the seeds?
The seed oil contains triacylglycerol and is highly valued for its potential as a renewable, liquid bio-fuel that can meet international standards.
Are there significant risks associated with the plant?
Yes, the plant and its seeds contain toxic proteins such as curcin and phorbol-esters, making them hazardous for internal human consumption without proper treatment.
What is the major constraint in the commercialization of this crop?
The main constraints include limited knowledge of agronomic practices in different environments, potential damage by pests, and the need for more efficient seed production and processing technologies.
- Citation du texte
- Dr. Akhilesh Kumar (Auteur), 2014, Jatropha curcas: A potential genetic resource for herbal medicine and liquid bio-fuel, Munich, GRIN Verlag, https://www.grin.com/document/284581
