Phytochemical screening of some plants used in herbal based. Thus plants remain a major source of medicinal compounds. Phytochemicals found in medicinal herbs or plants list. Medicinal plants have been as remedies for human diseases because of its chemical contents of therapeutic value. According to an estimate, 120 or so plant based drugs prescribed for use through the world come from just 95 plant species 4. Dec 06, 20 different online medicinal plant databases provide information about geographical distribution, classification, activities i. Finding out the economic value of ethnomedicinal plants is a holistic approach.
Toxicity of medicinal plants used in traditional medicine in. A few examples of the products extracted from medicinal plants are in 1920. Phytochemicals are naturally occurring compounds in medicinal plants which have defense mechanism and protect various. In current days medicinal plants play a key role as pillar of traditional healthcare systems of medicine in many developing countries. Medicinal plants are of great importance to the health of individuals and communities.
Phytochemicals defined in the strictest sense, as chemicals produced by plants. Pdf phytochemical analysis of selected medicinal plants. Profile of trace elements in selected medicinal plants used. Phytochemical analysis of methanolic extracts of leaves of. India has tremendous wealth of aromatic and medicinal plants. The nature has been a source of medicinal agents for thousands of years and an impressive number of modern drugs have been isolated from natural sources. Eclipta prostrata compositae is a herbaceous multibranched annual weed of moist places with long lanceolate leaves, hirsute stem and white flowers in axillary heads. Medicinal plants are a rich source of bioactive phytochemicals or bionutrients. Various medicinal plant extracts have been tested for their antifertility activity both in male and. Concerns regarding the safety and toxicity of medicinal. A pharmacological and phytochemical study of medicinal. Lutein found in high quantities in plants belonging to the genus nasturtium, in herbs like dandelion leaves, in vegetables such as spinach and kale and in yellow carrots and turnips. The asteraceae have many wellknown genera of medicinal plants in kansas, including echinacea coneflower, achillea yarrow, artemisia mugwortwormwood, erigeron fleabane, solidago goldenrods and symphyotrichum.
Medicinal plants have always had great significance in culture, medicine and. Medicinal plants derived natural antioxidants, which are in the form of raw extracts andor chemical constituents, are very efficient to block the process of oxidation by neutralizing free radicals 3. All the plants were biologically active and were used for. Medicinal plants international journal of phytomedicines. Antibacterial and phytochemical studies on twelve species of. Phytochemicals, also known as phytonutrients, are natural nonessential chemical compounds found in plants phyto is a greek word meaning plant. Introduction the value of medicinal plants in drug discovery is known to us well and the human being used them for various purposes from the beginning of the human history farnsworth, 2008. The therapeutic potential of plants has been well explored over a very long time period. There is a general belief amongst the consumers globally that herbal drugs are always safe because they are natural. Future source of new drugs arvind kumar shakya abstract india has a long history and strong base for ayurveda, which is the traditional herbal medical system.
Preliminary phytochemical screening of different solvent. This book serves as an introduction to the constituents of medicinal plants. Natural antimicrobials can be derived from plants, animal tissues and microorganisms5. Important medicinal phytochemicals such as terpenoids, reducing sugar, flavonoids, alkaloids and phlobatannins were present in the samples. Cumulative index of medicinal plants in alphabetical order of latin binomial plant name.
Plant tissue homogenization in solvent has been widely used by researchers. Surveys of plant medicinal usage by the american public have shown an increase from just about 3% of the population in 1991 to over 37% in 1998 brevoort, 19981. The red list status of selected european medicinal plants at the european and eu. Phytochemical analysis of medicinal plants occurring in. Plants as abortifacient and as contraceptive were well known to the ancient physicians of india. As medicinal plants receive increased scientific and commercial attention, there is increasing pressure on the. Conservation and sustainable use of medicinal plants 3.
The disciplines of ethnobotany and ethnopharmacology define medicinal plant as those species used in traditional medicine that contain. This study was designed to investigate the profile of certain trace elements having therapeutic properties related to diabetes mellitus. Medicinal plants, allelopathy, phytochemical, mount bamboutos, wabane, cameroon preliminary screening of phytochemicals is a valuable step in the detection of bioactive principles present in medicinal plants and may lead to novel environmentally friendly bioherbicides and. Medicinal plants are considered a repository of numerous types of bioactive compounds possessing varied therapeutic properties. Medicinal plants have been used to treat human diseases for thousands of years because they have vast and diverse assortment of organic compounds that can produce a definite physiological action on the human body. As of record around 20,000 plant species are in use for medicinal purposes.
Phytochemical analysis and comprehensive evaluation of. The present study was undertaken to investigate the phytochemical constituents of leaves of four. Six of the top 20 prescriptions dispensed in 1996 were natural products and the clinical use of drugs such as artemisinin, etoposide and taxol has once more focussed attention on plants as. They can occur in vegetables, grains, legumes, beans, fruits, herbs, nuts, roots, leaves and seeds. But private entrepreneurial initiatives of large scale production of medicinal plants, which grow naturally in the study area, are to be found lethargic. Contributions of medicinal plants to care and health. European red list of medicinal plants european commission. Below are several examples of active plant ingredients that provide medicinal plant uses for humans. Chemical analysis and biochemical assays are very important aspects in pharmacognostic evaluation of medicinal plants choudhury et al. Phytochemical screening of the bioactive compounds in. Medicinal plants medicinal plants constitute an effective source of both traditional and modern medicines herbal medicine has been shown to have genuine utility about 80% of rural population depends on it as primary health care.
Different online medicinal plant databases provide information about geographical distribution, classification, activities i. Phytochemical, natural compound occur in plants such as medicinal plants, vegetables and fruits that work with nutrients. Most important of such compounds are alkaloids, tannins, flavonoids, terpenoids, saponins and phenolic compounds. The present study was undertaken to investigate the phytochemical constituents of. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Indigenous uses and pharmacological activity of traditional. Below are several examples of active plant ingredients that. Refaz ahmad dar, mohd shahnawaz, parvaiz hassan qazi. Pharmacological data were collected by conducting informal interviews with local experienced doctors practicing traditional chinese medicine and via openended questionnaires on villagers. These plants are traditionally used in the management of diabetes in eritrea. Most traditional medicines are developed from nature. Medicinal plants at risk center for biological diversity.
The medicinal power of these plants lies in phytochemical constituents that cause definite pharmacological actions on the human body akinmoladun et al, 2007. Phytochemical constituents of some medicinal plants in south west, nigeria afolabi f, and afolabi o. According to world health organization, medicinal plants would be the greatest source to obtain an array of drugs. Some plants produce chemicals that act as herbicides to inhibit the growth of competing plants, such as the salicylic acid produced by willows. Water and methanol extracts were most effective to prohibit growth of all the harmful bacteria tested. Antioxidant properties of several medicinal plants growing.
Phytochemical screening of selected indigenous medicinal. Finding out the economic value of ethno medicinal plants is a holistic approach. Qualitative and quantitative phytochemical analysis of. Medicinal plants for forest conservation and health care fao. It is present in large amount in the tamil nadu state, india.
The journal is published quarterly and is now in 8th year of its successful publication. However, the rationale for the utilization of medicinal plants has rested largely on longterm clinical experience with little or no scientific data on. The past decade has witnessed a tremendous resurgence in the interest and use of medicinal plant products, especially in north america. This study was carried out to investigate the indigenous use and pharmacological activity of traditional medicinal plants of mount taibai, china.
Medicinal plants, trade, conservation, equity, botanicals, pharmaceuticals, bioprospecting. Medicinal plantsderived natural antioxidants, which are in the form of raw extracts andor chemical constituents, are very efficient to block the process of oxidation by neutralizing free radicals 3. Medicinal plants used in the traditional medicine are wellknown significant sources of natural antioxidants. In the present work twelve different medicinal plants each belonging to different families was evaluated for their antibacterial properties. Phytochemical screening of medicinal plants research papers. Laird department of anthropology, university college london, uk keywords.
Dried or wet, fresh plant parts are grinded in a blender to fine particles, put in a certain quantity of solvent and shaken vigorously for 5 10 min or left for 24 h after which the extract is filtered. The use of plants for healing purpose is getting increasingly popular as they are believed to be beneficial and free of side effects. Phytochemical analysis of traditional medicinal plants and. In vitro antioxidant, antibacterial and phytochemical. Phytochemicals are compounds that give plants their color, flavor, and smell. Understanding them and how they affect the body is crucial for those desiring to raise themselves above the occasional herbal hobbyist. Through the chemical tests in the methanolic extracts of leaves of the five investigated plants, it is. A pharmacological and phytochemical study of medicinal plants. There is no single database that combines all aspects of medicinal plants under one forum.
In india, the ayurvedic system has features a numerous of such medicinal remedies on plants. A truncated history of the contribution of plants to medicine is given with reference to some of the less well known ancestors of the harborne family. Since from the ancient times, several drugs have been formulated using the bioactive compounds present in these medicinal plants 1. Phytochemical screening of some compounds from plant leaf. There is a reasonable likelihood that medicinal plants with a long history of human use will ultimately yield novel drug prototypes eshrat and hussain, 2002. The whole plant is astringent, depurative, emetic, febrifuge, ophthalmic, purgative, styptic and tonic. General techniques involved in phytochemical analysis. Mar 02, 2016 2 seminar on extraction and phytochemical analysis of medicinal plants by shameembanu a. J applied sciences department, faculty of science, osun state polytechnic, iree, osun state, nigeria. Four medicinal plants including ranunculus arvensis, equisetum ravens, carathamus lanatus and fagonia critica were used for the study. Asteraceae, hypoxidaceae, apocynaceae, asphodelaceae, apiaceae and buddlejaceae. Herbal plants play an important role in preventing and treating of human diseases.
Concerns regarding the safety and toxicity of medicinal plants an overview abstract all over the world, especially in developing countries herbal drugs are playing an available. Acacia concina fruit, citrus limon fruit, curcuma longa rhizome, rosa indica petals and spindus mucorosi fruit, which were commonly used in various cosmetic preparations were selected 5 gm each of plant samples dissolved in 30 ml ethanol and water separately to obtain plant extracts. The investigated plants were aloe camperi, meriandra dianthera, lepidium sativum, brassica nigra, and nigella sativa. People have been using plants as a traditional medicine for thousand years ago. Phytochemical importance of medicinal plants as potential. Phytochemicals from medicinal plants are receiving ever greater attention in the scientific literature, in medicine, and in the world economy in general. The vast array of therapeutic effects associated with medicinal plants includes antiinflammatory, antiviral, antitumor. As populations age and consumers preference for natural health products increases, medicinal plants present a niche that exporters in many least developed countries ldcs are looking. Medicinal plants, allelopathy, phytochemical, mount bamboutos, wabane, cameroon preliminary screening of phytochemicals is a valuable step in the detection of bioactive principles present in medicinal plants and may lead to novel environmentally friendly bioherbicides and drug discovery. An ethnobotanical study of plants used by the traditional healers, herbalists and rural dwellers for the treatment of diabetes mellitus was conducted in the eastern cape province. Cowmann, 1999 and banso and olutimayin 2001 reported that plants contain a wide variety of active principles.
Capitalizing on the bioeconomic value of multipurpose medicinal plants for the rehabilitation of drylands in subsaharan africa 11 medicinal plants1 are both the oldest known source of human and livestock healthcare products and an important component of global biodiversity. Phytochemical screening of the bioactive compounds in twenty. An ethnobotanical study of plants used for the treatment of. Fresh plantplant parts were collected randomly from the semiarid region of rajkot gujarat, india. Other plants produce substances that deter browsing by insects and herbivores. Capitalizing on the bioeconomic value of multipurpose. Preliminary phytochemical analysis of some medicinal plants. The study revealed 14 plant species belonging to six families namely.
Thus, such plants should be investigated to better understanding for their properties, safety practices in addition to usefulness 7. The medicinal value of these plants lies in some chemical substances that produce a definite physiological action on the human body edeoga et al. With the development of chemical science and pharmacognosy physicians began to extract chemical products from medicinal plants. Medicinal plants is an international journal, covering all aspects of phytomedicine, medicinal crop cultivation, ethnobotany, phytochemistry, pharmacognosy, conservation, resource development and biotechnology and related industries. Moringa concanensis is a medicinal plant belonging to the family moringaceae fig. View phytochemical screening of medicinal plants research papers on academia. Flavonoids and phenolic acids are the most persistent groups of plant phenolics therefore they play significant role in plants and human health, thus it is important to better understanding of flavonoid awareness with biological behavior that could indicate their potentials as therapeutic agents. For those studying medical herbology, it is an invaluable little reference book and introduction into the chemistry of plants.
Plants for the presented assays were collected in northern peru fig. Grampositive bacteria were more sensitive than gramnegative bacteria to the plant extracts. The result of the phytochemical analysis shows that the ten plants are rich in at least one of alkaloids, flavonoids, terpenoids, reducing sugars and phlobatannins. Medicinal plants, preliminary, screening, phytochemical. Already, about 15,000 medicinal plant species may be threatened with extinction worldwide. Extraction and phytochemical analysis of medicinal plants.
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