The plant extracts used for research purposes are Azadirachta indica, which is its botanical name and commonly known as "Neem ", belongs to the Meliaceae family. Its chemical constituents are Nimbin, Nimbidin, Nimbidol. It provides repellent, antihormonal, analgesic, anti-food, antibacterial, anti-inflammatory, antipyretic, antifungal properties. The biological beneficial characteristics of this plant are detoxifying agent, acne reduction, digestive health benefits, dandruff prevention, oral health benefits. It helps in the treatment of malaria and fever and in the treatment of allergic skin reactions. The leaves of Acacia nilotica are commonly used as Babul or “kikar” a member of the acacia family. The chemical constituents of acacia are rich in proteins, tannins are present in large quantities and have a high content of artificial fibres. It is used to treat cancer, suppress appetite, stop obesity and cure diarrhea. The Indian barberry is generally called “Sumbloo” and the botanical name is Berberis aristata DC. It is anti-tumor, anti-diabetic and anti-arthritis. Biological characteristics: it is useful for the treatment of mouth and throat infections. Sumbloo root powder is useful for curing patients suffering from cancer, brain tumor, cancerous sores, mouth diseases, toothache, neck pain, thyroid glands, chronic wounds, diabetes, arthritis, infertility, broken bones, jaundice , cramps and diarrhea. Senna alexandrina belongs to the Fabaceae family and commonly called “Senna makki” is used to treat infections and skin diseases, used as a cathartic and laxative and to treat constipation. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Remedies and therapies for diseases such as stroke, cancer, tumors, diabetes, atherosclerosis and Alzheimer's disease, antioxidant-based drugs are used. Previously reported to have multiple biological effects, polyphenolic compounds are present in both inedible and edible plants. In many fields of study such as dye, nutrition, makeup products, beverages, drugs, flavors, repellents, added flavors, and herbs, antioxidant activity is included. Many species have been reported to have beneficial health effects such as antioxidant, antimicrobial, lipid-lowering, digestion-stimulating, antimutagenic, anticarcinogenic, anti-inflammatory, and therapeutic properties. The ABTS root scavenging activity of different samples was studied by Re et al. (1999). DPPH was explained by Brands Willaim et al. Fecl3 was explained by Berker rt al. (2007). ABTS or 2,2'-azino-bis (3-ethylbenzothiazolin-6-sulfonic acid) has observed kinetic reactions using specific enzymes. It is a remarkable substrate for measuring total antioxidant. An electronic antioxidant is involved to prevent the formation of ABTS. The DPPH or 1-1-diphenyl-2-picryl-hydrazyl radical comprises a powder form having a darker color and a substantial free radical. DPPH is a highly regarded antioxidant test. The DPPH test is performed when you reduce DPPH in a methanol solution. FRAP based on the reduction of the ferric tripyridyl triazine complex to the formation of ferrous ions. It turned from colorless to dark blue. Antioxidants are those compounds in the body that protect cells from free radicals or oxygen-reactive cells ROS. They are designed like the body's normal metabolic functions, free radicals can interfere with their ability to function and react with other cells. He recognized oxygen and activityof free radicals in human focus in aging, atherosclerosis and cancer-like diseases. Reactive oxygen species (ROS) caused free radicals to react with molecular oxygen. The reactive oxygen species includes hydroxyl radicals, superoxide anions, and hydrogen peroxide. Due to the activity of free radicals, natural antioxidants present in plant phenols are found in fruits, vegetables, bark, seeds and leaves and are used to protect against biological damage and inhibit peroxidation. From diseases like cancer and atherosclerosis to wrinkles, free radicals play an important role in several health problems. The antioxidant compounds contained in Azadirachta indica and their effects on animals diagnosed with cancer are described by universities around the world in ongoing research. A study reported in LifeSciences describes that antioxidant compounds in Azadirachta indica prevent brain damage in rats who have suffered a stroke by increasing ascorbic acid (vitamin C) and increasing lipid peroxidation in the brain. Rats previously treated with Azadirachta indica may undergo comprehensive standard testing. The modern system of medicine has more than 25% plant-based medicines. Many trees have various medicinal properties, but have been neglected by the modern and indigenous system of medicine. Among these, Azadirachta indica belonging to the Meliaceae family plays an essential role thanks to its medicinal value in many indigenous communities. Recently there has been increased interest in the therapeutic potential of medicinal plants as antioxidants. Two medicinal tree species belonging to the Meliaceae family were selected from plant sources to evaluate antioxidant potential. All four types of leaves were dried and extracted with different solvent systems, namely N-hexane, ethyl acetate, ethanol, chloroform, and water. Six DPPH radical scavenging extracts and an analysis of the antioxidant activity of two genera of the Meliaceae family are reported, and it is necessary to compare the free radical scavenging capacity of the extracts. For centuries, agents derived from natural sources (mother nature), especially plants, have been the primary source of medicine. Azadirachta indica, also commonly called "NEEM", is one such plant that provides cure for all diseases and has been used in the Indian and African continents for many years. Different parts of the plant, namely flowers, leaves, seeds and bark, have been used to treat human diseases of both acute and chronic types. It is used as an antibacterial, insecticide; antiviral, antimicrobial, larvicidal, antimalarial. The molecular basis of various diseases including inflammation, cardiovascular disease, and cancer is known to involve oxidative stress caused by free radicals. Significant research is currently underway on natural antioxidants, especially for their adverse protective effect against biological damage due to free radicals. Azadirachta indica, Siamese neem and A. Juss var or tree is an evergreen tree that belongs to the Meliaceae family. Mostly this plant is found everywhere in Thailand and has been used as a conventional treatment in many ways. The flowers are used as refreshments and cure diseases such as fever and nasal polyposis. The bark of its stem is used to treat diarrhea and amoebic dysentery. Together with the flowers, the leaves are also used as a tonic element, to improve intestinal secretion, for the treatment of pyrexia and as an insecticide. Besides this, in Thailand, the new flowers and leaves of the Siamese neem are usually eaten as a vegetablecooked. The Siamese neem tree has been evaluated for antioxidant activity and may contribute to high-level antioxidant activity. This plant shows free radical scavenging activity adverse to DPPH and ABTS radicals and can also stop the lipid peroxidation of the cell line called Chago K-1 generated by Ulta Violet radiation. These mentioned reports informed that Siamese neem tree can be used as a health food. Hence, the aim of this research was to study the antioxidant property of aqueous extracts of Siamese neem leaves from various extraction and drying methods include filtration, spray drying and freeze-drying. The Nilotic acacia commonly known as the "keekar" family is Fabaceae-Mimosoideae. The division and class are Magnolophyta and Magnolipsida respectively. This plant was used to treat infections such as fever, congestive hemorrhoids, gallbladder, hemorrhage, cold, smallpox and ophthalmic. Acacia bark is used for intestinal pain and in the treatment of acute diarrhea. Other conditions are syphilitic, toothache and ophthalmic ulcers. Acacia roots are used to treat tuberculosis. This study carried out the activities of A. nilotica ethanolic extract such as antioxidant antigiardia activity (DPPH assay) (Giardia lamblia) and performed the cytotoxicity through MTT assay. Medicinal plants are a vital source of natural resources that are safe to use, not very toxic, cheap, accessible, affordable and reliable medicines found all over the world. Sudan has used conventional herbal methods to treat its population and has investigated the potential of local plants against disease in this way. Acacia is known as "garad" in Sudan. The plant has yellow mimosa-like flowers and long gray pods squeezed between the seeds. They have dark bark and branches. They have hairy leaves. The flower is grown on the plant between November and March. Acute diarrhea is treated with the powdered bark of the plant with less salt. Modern scientific developments possess pharmacological activity and economic feasibility. Plants with chemical compounds are sweetly scented, spicy and medicinal and exhibit antioxidant properties. Antitumor, antibacterial, antiviral, anti-inflammatory or anticarcinogenic activities are exhibited by antioxidant compounds. Crude extracts of vegetables, herbs, fruits and other phenolic-rich plant materials are increasing in the food industry because they slow down the oxidative degradation of lipids and improve the nutritional value and quality of food. Nilotic acacia is distributed in tropical and subtropical countries. to a large extent. Ayurveda, a natural medicine that contributes to self-healing and good health, A. Nilotica can provide nutrients and therapeutic ingredients to stop, reduce or cure many diseases or certain conditions. Flowers, leaves and bark are used to cure tumors, colds and coughs, congestion, cancer, diarrhea, constipation, dysentery, fever, gall bladder, hemorrhoids, ophthalmia, sclerosis, smallpox, tuberculosis, leprosy, leukoderma and menstrual problems. Berberis aristata, is also known as Indian barberry, commonly "chutro" or tree turmeric used to treat cuts and burns, belongs to the Berberidaceae family and the genus is Berberis. It produces juicy, acidic berries that are usually considered a refreshing and energizing fruit. The shrub is widespread in Nepal and the Himalayas in India and the plant is present in Bhutan and Sri Lanka, as well as in the hilly areas of India and Nepal. Indian barberry has been used as an Ayurvedic medicine. It has various antimicrobial properties (antifungal, antibacterial, antitumor, antioxidant). The Indian barberry comesused as a healing process for various eye, skin infections and inflammation, fever, ulcer, wound, injury, dysentery, etc. It also prohibits conditions such as jaundice, heart failure, malarial fever and liver disease. Berberis aristata is used internally and externally both ways. The researchers had reported that B. aristata has anti-inflammatory properties that block inflammatory receptors and prevent mediators in macrophages from being active. Macrophages, which are active and persistent inflammation, which is chronic, play an essential role in the disease process. It is used to successfully treat inflammation. The effective treatment for this is known as Berberine and Berberol which introduce insulin therapy for diabetic patients with minimal blood sugar control. Antidiarrheal, antispasmodic and antimalarial activities in herbal formations with a biodynamic composition are also useful. They have important anti-tumor and cancer treatments. Roots used to treat fevers, ulcers, jaundice etc. Its leaves are chewed by the affected teeth for almost 10-15 minutes. Barberry trees which have different parts are used as natural antioxidant and its extraction is very expensive and long process. This plant is a shrub with oval-shaped leaves, 3 malts long, pointed, with yellow wood and flowers that bear red fruits. An important medicinal plant also called "daruharidra", found mainly in the Himalayas but found in other parts of the world. For the treatment of skin diseases and jaundice, Ayurvedic medicine 'Rashut' is produced. This plant is an essential medicine for the treatment of liver and heart patients, a cause of fever and stress and a laxative at a young age. Berberine has been reported to exhibit inhibition of enzymatic, local anesthetic, and antipyretic activities. Currently the clinical uses of berberine are diarrhea, parasitic infections of the intestine and ocular trachoma infection. Senna Alexandrina is commonly called as "Senna makki" plant found in North Africa and India, mostly practiced as a medicinal herb. Senna Alexandrina is an FDA-approved laxative. It is used to provide remedies for fecal impaction, acne, irritable bowel syndrome, skin infections, hemorrhoids and weight loss. The flowers and fruits that contain part of this plant are able to cause excretions and provide treatment to people suffering from constipation, bringing many benefits to their health. It can also reduce inflammation for those who suffer from hemorrhoids. Alexandrian senna is able to prevent the absorption of calories into the blood, so it helps in weight loss by immediately eliminating food from the body. For skin irritations such as pimples and redness, senna plant paste has been applied to the affected area to eliminate it. Alexandria Senna has strengthened the body's immune system against several serious conditions due to its antibacterial properties. The major health problem among people of both highly developed and developing countries is cancer, a disease of misplaced cells that have a high possibility of overgrowth. It is the second killer in the world after cardiovascular diseases. Nearly 3,500 million humans die from cancer every year worldwide. Recently there are three basic procedures for cancer treatment: surgical procedures, chemotherapy and radiation therapy. Highly effective drugs used in chemotherapy can be harmful, and a low dosage percentage can reach the target area of ​​cells, while the area of ​​healthy cells and tissues can also have effects and can harm. Side effects of drugs in chemotherapy.