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Camphor Grove Sha Tau Kok.jpg
Camphor () is a waxy, colorless solid with a strong aroma. It is classified as a terpenoid and a cyclic ketone. It is found in the wood of the camphor laurel ('' Cinnamomum camphora''), a large evergreen tree found in East Asia; and in the kapur tree ( ''Dryobalanops'' sp.), a tall timber tree from South East Asia. It also occurs in some other related trees in the laurel family, notably '' Ocotea usambarensis''. Rosemary leaves (''Rosmarinus officinalis'') contain 0.05 to 0.5% camphor, while camphorweed (''Heterotheca'') contains some 5%. A major source of camphor in Asia is camphor basil (the parent of African blue basil). Camphor can also be synthetically produced from oil of turpentine. The compound is chiral, existing in two possible enantiomers as shown in the structural diagrams. The structure on the left is the naturally occurring (+)-camphor ((1''R'',4''R'')-bornan-2-one), while its mirror image shown on the right is the (−)-camphor ((1''S'',4''S'')-bornan-2-one). C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Merck Index
''The Merck Index'' is an encyclopedia of chemicals, drugs and biologicals with over 10,000 monograph on single substances or groups of related compounds published online by the Royal Society of Chemistry. History The first edition of the Merck's Index was published in 1889 by the German chemical company Emanuel Merck and was primarily used as a sales catalog for Merck's growing list of chemicals it sold. The American subsidiary was established two years later and continued to publish it. During World War I the US government seized Merck's US operations and made it a separate American "Merck" company that continued to publish the Merck Index. In 2012 the Merck Index was licensed to the Royal Society of Chemistry. An online version of The Merck Index, including historic records and new updates not in the print edition, is commonly available through research libraries. It also includes an appendix with monographs on organic named reactions. The 15th edition was published in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosmarinus Officinalis
''Salvia rosmarinus'' (), commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers, native to the Mediterranean region. Until 2017, it was known by the scientific name ''Rosmarinus officinalis'' (), now a synonym. It is a member of the sage family Lamiaceae, which includes many other medicinal and culinary herbs. The name "rosemary" derives from Latin ("dew of the sea"). Rosemary has a fibrous root system. Description Rosemary is an aromatic evergreen shrub with leaves similar to hemlock needles. It is native to the Mediterranean and Asia, but is reasonably hardy in cool climates. Special cultivars like 'Arp' can withstand winter temperatures down to about . It can withstand droughts, surviving a severe lack of water for lengthy periods. In some parts of the world, it is considered a potentially invasive species. The seeds are often difficult to start, with a low germination rate and relatively slow growth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha-pinene
α-Pinene is an organic compound of the terpene class, one of two isomers of pinene. It is an alkene and it contains a reactive four-membered ring. It is found in the oils of many species of many coniferous trees, notably the pine. It is also found in the essential oil of rosemary (''Rosmarinus officinalis'') and '' Satureja myrtifolia'' (also known as ''Zoufa'' in some regions). Both enantiomers are known in nature; (1''S'',5''S'')- or (−)-α-pinene is more common in European pines, whereas the (1''R'',5''R'')- or (+)-α-isomer is more common in North America. The racemic mixture is present in some oils such as eucalyptus oil and orange peel oil. Reactivity : Commercially important derivatives of alpha-pinene are linalool, geraniol, nerol, a-terpineol, and camphene. α-Pinene 1 is reactive owing to the presence of the four-membered ring adjacent to the alkene. The compound is prone to skeletal rearrangements such as the Wagner–Meerwein rearrangement. Acids typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anping District
Anping District is a district of Tainan, Taiwan. In March 2012, it was named one of the ''Top 10 Small Tourist Towns'' by the Tourism Bureau of Taiwan. It is home to 67,263 people. Name The older place name of Tayouan derives from the ethnonym of a nearby Taiwanese aboriginal tribe, and was written by the Dutch and Portuguese variously as ''Taiouwang'', ''Tayowan'', etc. In his translations of Dutch records, missionary William Campbell used the variant ''Tayouan'' and wrote that ''Taoan'' and ''Taiwan'' also occur. As Dutch spelling varied greatly at the time (see History of Dutch orthography), other variants may be seen. The name was also transliterated into Chinese characters variously as , , , , and . After the Dutch were ousted by Koxinga, Han immigrants renamed the area "Anping" after the Anping Bridge in Quanzhou, Fujian. Soon after Qing rule was established in 1683, the name "Taiwan" () was officially used to refer to the whole island with the establishmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Product
A forest product is any material derived from forestry for direct consumption or commercial use, such as lumber, paper, or fodder for livestock. Wood, by far the dominant product of forests, is used for many purposes, such as wood fuel (e.g. in form of firewood or charcoal) or the finished structural materials used for the construction of buildings, or as a raw material, in the form of wood pulp, that is used in the production of paper. All other non-wood products derived from forest resources, comprising a broad variety of other forest products, are collectively described as non-timber forest products (NTFP). Non-timber forest products are viewed to have fewer negative effects on forest ecosystem when providing income sources for local community. Globally, about 1.15 billion ha of forest is managed primarily for the production of wood and non-wood forest products. In addition, 749 million is designated for multiple use, which often includes production. Worldwide, the area of f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryobalanops Aromatica
''Dryobalanops aromatica'', commonly known as Borneo camphor, camphor tree, Malay camphor, or Sumatran camphor, is a species of critically endangered plant in the family Dipterocarpaceae. The species name ''aromatica'' is derived from Latin (''aromaticus'' meaning spice-like) and refers to the smell of the dammar (resin). This species was one of the main sources of camphor and attracted early Arab traders to Borneo, at that time being worth more than gold, and used for incense and perfumes. It is found in Sumatra, peninsular Malaysia, and Borneo. It is a large emergent tree, up to 65 m or even 75 m tall, found in mixed dipterocarp forests on deep humic yellow sandy soils. It is a heavy hardwood sold under the trade names of Kapur. It is recorded from at least two protected areas ( Lambir and Gunung Mulu National Parks). Bergenin, malaysianol A, laevifonol, ampelopsin E, α-viniferin, ε-viniferin and diptoindonesin A can be isolated from the stem bark of ''D. aromatica' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumatra
Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent islands such as the Simeulue, Nias, Mentawai, Enggano, Riau Islands, Bangka Belitung and Krakatoa archipelago. Sumatra is an elongated landmass spanning a diagonal northwest–southeast axis. The Indian Ocean borders the northwest, west, and southwest coasts of Sumatra, with the island chain of Simeulue, Nias, Mentawai, and Enggano off the western coast. In the northeast, the narrow Strait of Malacca separates the island from the Malay Peninsula, which is an extension of the Eurasian continent. In the southeast, the narrow Sunda Strait, containing the Krakatoa Archipelago, separates Sumatra from Java. The northern tip of Sumatra is near the Andaman Islands, while off the southeastern coast lie the islands of Bangka and Belitung, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sibolga
Sibolga (formerly sometimes Siboga) is a city and a port located in the natural harbor of Sibolga Bay on the west coast of North Sumatra province, in Indonesia. It is located on the western side of North Sumatra, facing the Indian Ocean and is a transit harbor to the Nias island which was hard hit during the 2004 Indian Ocean earthquake. Sibolga is also a semi-enclave within Central Tapanuli Regency, as Sibolga borders with Central Tapanuli Regency in the north, east, and south, while it borders with the Mentawai Strait in the west. The city has an area of 10.77 km2 and had a population of 84,444 at the 2010 census and 89,584 at the 2020 census.Badan Pusat Statistik, Jakarta, 2021. Sibolga is the smallest city in Indonesia. Administrative districts The city is divided into four districts (''kecamatan''), tabulated below with their areas and their populations at the 2010 censusBiro Pusat Statistik, Jakarta, 2011. and the 2020 census.Badan Pusat Statistik, Jakarta, 2021. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barus
Barus is a town and ''kecamatan'' (district) in Central Tapanuli Regency, North Sumatra Province, Sumatra, Indonesia. Historically, Barus was well known as a port town or kingdom on the western coast of Sumatra where it was a regional trade center from around the 7th or earlier until the 17th century. It was also known by other names, namely Fansur and possibly Barusai. The name Fansur or Pansur means "spring of water" in the local Batak language. Barus was well known for its produce camphor. In the 16th century, Barus came under attack from the rising power of Aceh, and became absorbed into the Aceh Sultanate. The earliest known Malay poet Hamzah Fansuri may be from Barus as indicated by his name. Historical records Barus was a significant settlement on the west coast of Sumatra widely recorded in many historical documents. Other related sites in Sumatra includes Lamuri in Aceh and Pannai in North Sumatra. The second century Greek geographer Claudius Ptolemy in his work '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Malay
Malay was first used in the first millennia known as Old Malay, a part of the Austronesian language family. Over a period of two millennia, Malay has undergone various stages of development that derived from different layers of foreign influences through international trade, religious expansion, colonisation and developments of new socio-political trends. The oldest form of Malay is descended from the Proto-Malayo-Polynesian language spoken by the earliest Austronesian settlers in Southeast Asia. This form would later evolve into Old Malay when Indian cultures and religions began penetrating the region, most probably using the Kawi and Rencong scripts, some linguistic researchers say. Old Malay contained some terms that exist today, but are unintelligible to modern speakers, while the modern language is already largely recognisable in written Classical Malay of 1303 CE. Malay evolved extensively into Classical Malay through the gradual influx of numerous elements of Arabic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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