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Cedar Oil
Cedar oil, also known as cedarwood oil, is an essential oil derived from various types of conifers, most in the pine or cypress botanical families. It is produced from the foliage, and sometimes the wood, roots, and stumps left after logging of trees for timber. It has many uses in art, industry, and perfumery, and while the characteristics of oils derived from various species may vary, all have some degree of pesticidal effects. Sources and characteristics Although termed cedar or cedarwood oils, the most important oils are produced from distilling wood of a number of different junipers and cypresses (of the family Cupressaceae), rather than true cedars (of the family Pinaceae). Similar oils are distilled, pressed or chemically extracted in small quantities from wood, roots, and leaves from plants of the genera ''Platycladus'', ''Cupressus'', ''Taiwania'', and ''Calocedrus''. The cedarwood oil of the ancients, in particular the Sumerians and Egyptians, was derived from the Cedar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia (south-central Iraq), emerging during the Chalcolithic and early Bronze Ages between the sixth and fifth millennium BC. It is one of the cradles of civilization in the world, along with ancient Egypt, Elam, the Caral-Supe civilization, Mesoamerica, the Indus Valley civilisation, and ancient China. Living along the valleys of the Tigris and Euphrates rivers, Sumerian farmers grew an abundance of grain and other crops, the surplus from which enabled them to form urban settlements. Proto-writing dates back before 3000 BC. The earliest texts come from the cities of Uruk and Jemdet Nasr, and date to between c. 3500 and c. 3000 BC. Name The term "Sumer" ( Sumerian: or , Akkadian: ) is the name given to the language spoken by the "Sumerians", the ancient non- Semitic-speaking inhabitants of southern Mesopotamia, by their successors the East Semitic-speaking Akkadians. The Sumerians ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrene
Cedrene is a sesquiterpene found in the essential oil of cedar. The two isomers present in the oil are (−)-α-cedrene and (+)-β-cedrene, which differ in the position of a double bond. See also * Cedrol Cedrol is a sesquiterpene alcohol found in the essential oil of conifers (cedar oil), especially in the genera ''Cupressus'' (cypress) and ''Juniperus'' (juniper). It has also been identified in ''Origanum onites'', a plant related to oregano. Its ..., another component of cedar oil References Sesquiterpenes B {{hydrocarbon-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rectified Spirit
Rectified spirit, also known as neutral spirits, rectified alcohol or ethyl alcohol of agricultural origin, is highly concentrated ethanol that has been purified by means of repeated distillation in a process called rectification. In some countries, denatured alcohol or denatured rectified spirit may commonly be available as "rectified spirit", because in some countries (though not necessarily the same) the retail of rectified alcohol in its non-denatured form is prohibited. The purity of rectified spirit has a practical limit of 97.2% ABV (95.6% by mass) when produced using conventional distillation processes, as a mixture of ethanol and water becomes a minimum-boiling azeotrope at this concentration. However, rectified spirit is typically distilled in continuous multi-column stills at 96–96.5% ABV and diluted as necessary. Ethanol is a commonly used medical alcohol''spiritus fortis'' is a medical term for ethanol with 95% ABV. Neutral spirits can be produced from grains, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juniperus Deppeana
''Juniperus deppeana'' (alligator juniper or checkerbark juniper) is a small to medium-sized tree reaching in height. It is native to central and northern Mexico and the southwestern United States. Description The tree reaches , rarely , in height. The Bark (botany), bark is usually very distinctive, unlike other junipers, hard, dark gray-brown, cracked into small square plates superficially resembling alligator skin; it is however sometimes like other junipers, with stringy vertical fissuring. The shoots are in diameter. On juvenile specimens, the leaves are needle-like and long. The leaves are arranged in opposite leaves, opposite decussate pairs or whorls of three; in adulthood they are scale-like, long (up to 5 mm) and 1–1.5 mm broad. The conifer cone, cones are Juniper berry, berrylike, wide, green when young and maturing to orange-brown with a whitish waxy bloom,. These contain 2–6 seeds, which mature in about 18 months. The male cones are long, and shed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juniperus Ashei
''Juniperus ashei'' (Ashe juniper, mountain cedar, blueberry juniper, post cedar, or just cedar) is a drought-tolerant evergreen tree, native from northeastern Mexico and the south-central United States to southern Missouri. The largest areas are in central Texas, where extensive stands occur. Ashe juniper grows up to tall, and over time can reach , and provides erosion control and year-round shade for wildlife and livestock. Description The feathery foliage grows in dense sprays, bright green in color. The leaves are scale-like, long, and produced on rounded (not flattened) shoots. It is a dioecious species, with separate male and female plants. The seed cones are round, long, and soft, pulpy and berry-like, green at first, maturing purple about 8 months after pollination. They contain one or two seeds, which are dispersed when birds eat the cones and pass the seeds in their droppings. The male cones are 3–5 mm long, yellow, turning brown after pollen release in Decem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its administrator, who is appointed by the president and approved by the Senate. The current administrator is Michael S. Regan. The EPA is not a Cabinet department, but the administrator is normally given cabinet rank. The EPA has its headquarters in Washington, D.C., regional offices for each of the agency's ten regions and 27 laboratories. The agency conducts environmental assessment, research, and education. It has the responsibility of maintaining and enforcing national standards under a variety of environmental laws, in consultation with state, triba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preservative
A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes. In general, preservation is implemented in two modes, chemical and physical. Chemical preservation entails adding chemical compounds to the product. Physical preservation entails processes such as refrigeration or drying.Erich Lück and Gert-Wolfhard von Rymon Lipinski "Foods, 3. Food Additives" in ''Ullmann's Encyclopedia of Industrial Chemistry'', 2002, Wiley-VCH, Weinheim. Preservative food additives reduce the risk of foodborne infections, decrease microbial spoilage, and preserve fresh attributes and nutritional quality. Some physical techniques for food preservation include dehydration, UV-C radiation, freeze-drying, and refrigeration. Chemical preservation and physical preservation techniques are som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
US Food And Drug Administration
The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food safety, tobacco products, caffeine products, dietary supplements, prescription and over-the-counter pharmaceutical drugs (medications), vaccines, biopharmaceuticals, blood transfusions, medical devices, electromagnetic radiation emitting devices (ERED), cosmetics, animal foods & feed and veterinary products. The FDA's primary focus is enforcement of the Federal Food, Drug, and Cosmetic Act (FD&C), but the agency also enforces other laws, notably Section 361 of the Public Health Service Act, as well as associated regulations. Much of this regulatory-enforcement work is not directly related to food or drugs, but involves such things as regulating lasers, cellular phones, and condoms, as well as control of disease in contexts varying from h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embalming
Embalming is the art and science of preserving human remains by treating them (in its modern form with chemicals) to forestall decomposition. This is usually done to make the deceased suitable for public or private viewing as part of the funeral ceremony or keep them preserved for medical purposes in an anatomical laboratory. The three goals of embalming are sanitization, presentation, and preservation, with restoration being an important additional factor in some instances. Performed successfully, embalming can help preserve the body for a duration of many years. Embalming has a very long and cross-cultural history, with many cultures giving the embalming processes a greater religious meaning. Animal remains can also be embalmed by similar methods, but embalming is distinct from taxidermy. Embalming preserves the body intact, whereas taxidermy is the recreation of an animal's form often using only the creature's skin mounted on an anatomical form. History It is important to n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Egyptian Funerary Practices
The ancient Egyptians had an elaborate set of funerary practices that they believed were necessary to ensure their immortality after death. These rituals included mummifying the body, casting magic spells, and burials with specific grave goods thought to be needed in the afterlife. The ancient burial process evolved over time as old customs were discarded and new ones adopted, but several important elements of the process persisted. Although specific details changed over time, the preparation of the body, the magic rituals, and grave goods were all essential parts of a proper Egyptian funeral. History Although no writing survived from the Predynastic period in Egypt (), scholars believe the importance of the physical body and its preservation originated during that time. This likely explains why people of that time did not follow the common practice of cremation among neighboring cultures, but rather buried the dead. Some of the scholars believe the Predynastic-era Egyptian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrol
Cedrol is a sesquiterpene alcohol found in the essential oil of conifers (cedar oil), especially in the genera ''Cupressus'' (cypress) and ''Juniperus'' (juniper). It has also been identified in ''Origanum onites'', a plant related to oregano. Its main uses are in the chemistry of aroma compounds. It makes up about 19% of cedarwood oil Texas and 15.8% of cedarwood oil Virginia. Cedrol has not been proven to be toxic in humans. It has been shown to have antioxidant and antiinflammatory along with other beneficial effects. In skin sensitization tests 2/20 people showed negative effects, and on the second test there was no sensitivity found. This compound and ones similar have been found to have antiseptic, anti-inflammatory, antispasmodic, tonic, astringent, diuretic, sedative, insecticidal, and antifungal activities ''in vitro''. These compounds are used globally in traditional medicine and cosmetics. Results of a 2015 study suggest that cedrol strongly attracts pregnant female mosqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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