A study of the nutritive profile of a vegetable, piper methysticum, locally known as awa

Project Abstract

Piper methysticum, commonly known as awa, is a traditional vegetable with significant cultural and medicinal importance in various Pacific Island communities. This study aimed to investigate the nutritive profile of awa to provide valuable information on its potential health benefits and nutritional value. The research involved a comprehensive analysis of the macro and micronutrients present in awa, including carbohydrates, proteins, fats, vitamins, and minerals. Laboratory analyses revealed that awa is a rich source of essential nutrients, particularly vitamins C and E, magnesium, and potassium. These nutrients play crucial roles in supporting overall health and well-being, including immune function, antioxidant defense, and cardiovascular health. Additionally, awa was found to contain dietary fiber, which is essential for digestive health and may help prevent various chronic diseases. The study also examined the phytochemical composition of awa, including flavonoids, phenolic compounds, and alkaloids. These bioactive compounds have been associated with various health benefits, such as anti-inflammatory, antioxidant, and anti-cancer properties. The presence of these phytochemicals further enhances the nutritional value of awa and underscores its potential as a functional food with therapeutic properties. Furthermore, the research investigated the potential bioavailability of nutrients in awa to assess its efficacy in providing essential nutrients to the human body. Understanding the bioavailability of nutrients is critical for evaluating the nutritional impact of foods and designing effective dietary recommendations for optimal health. Overall, the findings of this study suggest that awa is a nutritionally dense vegetable with a diverse array of essential nutrients and bioactive compounds. Incorporating awa into the diet may offer various health benefits, including immune support, antioxidant protection, and digestive health. The nutritive profile of awa underscores its potential as a valuable addition to a healthy and balanced diet, particularly in regions where it is traditionally consumed. Further research is warranted to explore the specific health effects of awa consumption and to elucidate its mechanisms of action in promoting health and preventing disease. By expanding our understanding of the nutritive properties of awa, we can harness its potential as a functional food with therapeutic applications for improving human health and well-being.

Project Overview

<p> </p><p><strong>INTRODUCTION</strong></p><p><strong>1.1 &nbsp; &nbsp; &nbsp; Herbs</strong>&nbsp;An herb is a plant that is valued for flavor, scent, medicinal or other qualities other than its food value (John, 2000). They are used in cooking, as medicines, and for spiritual purposes. Herbs have a variety of uses including culinary and medicinal usage. General usage differs between culinary herbs and medicinal herbs (John, 2000). &nbsp;Herbs are “generally recognized as safe” by the Food &amp; Drug Administration (FDA), at least at concentrations commonly found in foods (Kaefer <em>et al</em>, 2008). Medicinal plants continue to provide valuable therapeutic agents, both in modern medicine and in traditional system (Reaven, 1983). The leaves, roots, flowers, seeds, root bark, inner bark (cambium), berries and sometimes the pericarp or other portions of the plant might be considered in medicinal or spiritual use (John, 2000). In the medicinal uses, herbs (plants) contain phytochemicals that have effects on the body (John, 2000). Until the 20th century, (Sanusi <em>et al</em>, 2008) most medicinal remedies all over the world were obtained from plants. For example, purple forglove was found to be helpful in dropsy, the opium poppy for pain, cough, and diarrhea, and the cinchona bark for fever. With the emergence of chemical and pharmacological methods in the 20th century, it became possible to identify the active ingredients in the plants and study them. Furthermore, once the chemistry was understood, it was possible to synthesize related molecules with more desirable properties. According to (Sodimu <em>et al</em>, 2008), today, the two most effective and widely accepted drugs for the treatment of malaria today emerged through herbal traditional medicine viz: Quinine from the bark of the Peruvian cinchona tree and artemisinin from the Chinese antipyretic Artemisia annua L. Hence, throughout history, the medicinal benefits of herbs are quoted (John, 2000). There may be some effects when consumed in the small levels that typify culinary “spicing”, and some herbs are toxic in larger quantities. For instance, some types of herbal extract, such as the extract of St. John’s-wort (<em>Hypericum perforatum</em>) or of awa (<em>Piper methysticum</em>) can be used for medical purposes to relieve depression and stress (John, 2000). However, (Milner <em>et al</em>, 2008), large amounts of these herbs may lead to toxic overload that may involve complications, some of a serious nature, and should be used with caution. One herb-like substance, called Shilajit, may actually help a lower blood glucose level which is especially important for those suffering from diabetes. In comparative terms, (Metuh, 1987) the western idea of medicine and the traditional African conception differ in scope. In the traditional sense, it refers to a wholistic view of well being, while in the western sense, it is strictly limited to bodily therapeutic purposes. Nze in his own comparative analysis of medicine underscores the peculiarity difference, which defines the traditional wholistic perception of medicine (Metuh, 1987). According to (John, 2000), modern pharmaceuticals had their origins in crude herbal medicines, and to this day, many drugs are still extracted as fractionate/isolate compounds from raw herbs and then purified to meet pharmaceutical standards. Some herbs are used not only for culinary and medicinal purposes, but also for psychoactive and/or recreational purposes; one such herb is cannabis (John, 2000). However, many herbs and their bioactive components are being investigated for potential disease prevention and treatment at concentrations which may exceed those commonly used in food preparation herbs (Milner <em>et al</em>, 2008). It is therefore imperative to identify any potential safety concerns associated with the use of various dosages which range from doses commonly used for culinary purposes to those used for medicinal purposes since there are often unclear boundaries between the various uses of herbs (Milner <em>et al</em>, 2008). Other uses of herbs other than medicinal uses are: Sacred uses: According to “<em>Chinese herbal medicine</em>” Herbs are used in many religions for example, myrrh (<em>Commiphora myrrha</em>) and &nbsp; frankincense (<em>Boswellia</em>&nbsp;spp) in Christianity, the Nine Herbs Charm in Anglo-Saxon paganism, the Neem tree (<em>Azadirachta indica</em>) by the Tamils, holy basil or <em>tulsi</em>&nbsp;(<em>Ocimum tenuiflorum</em>) in Hinduism, and many Rastafarians consider cannabis (<em>Cannabis sp</em>) to be a holy plant (John, 2000). Siberian Shamans also used herbs for spiritual purposes. Plants may be used to induce spiritual experiences, such as vision quests in some Native American cultures (John, 2000). The Cherokee Native Americans use sage and cedar for spiritual cleansing and smudging. Uses as pest control: Herbs are also known amongst gardeners to be useful for pest control. Mint, spearmint, peppermint, and pennyroyal are a few such herbs. These herbs when planted around a house’s foundation can help keep unwanted critters away such as flies, mice, ants, fleas, moth and tick amongst others. They are not known to be harmful or dangerous to children or pets, or any of the house’s fixtures (John, 2000).</p><p><strong>1.2 &nbsp; &nbsp; &nbsp; Objectives of study</strong>&nbsp;<em>Piper methysticum</em>&nbsp;being a plant used for its medical and social purposes (Johnston <em>et al</em>, 2008), may have been of great benefits in human health due to its biochemical, pharmacological, and medical properties. This study, therefore, was undertaken to evaluate the trace – element composition of the leaf extract.</p> <br><p></p>