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32-619: It was once notorious as a turf for gangsters and triads until the 1980s, when urbanisation transformed the area into a residential suburb of George Town. Jelutong was named after the Jelutong tree, known scientifically as Dyera costulata . It was believed that this species of trees was once abundant around the area now known as Jelutong. Jelutong was already inhabited before the arrival of Captain Francis Light in 1786. Merchants from Aceh and India established resting places and villages along

64-502: A convergent evolution process, as traces of this habit have arisen separately in many early civilizations. Each early precursor to chewing gum was derived from natural growths local to the region and was chewed purely out of the instinctual desire to masticate. Early chewers did not necessarily desire to derive nutritional benefits from their chewable substances but at times sought taste stimuli and teeth cleaning or breath-freshening capabilities. Chewing gum in many forms has existed since

96-514: A patent for automatically cutting wrappers for sticks of chewing gum: US 913,352 "Web-cutting attachment for wrapping-machines" 23 February 1909 from Louisville, Kentucky, inventor James Henry Brady, an employee of the Colgan Gum Company. Modern chewing gum was first developed in the 1860s when chicle was brought from Mexico by the former president, General Antonio Lopez de Santa Anna , to New York, where he gave it to Thomas Adams for use as

128-563: A ration and traded it with locals. Synthetic gums were first introduced to the U.S. after chicle no longer satisfied the needs of making good chewing gum. By the 1960s, US manufacturers had switched to butadiene -based synthetic rubber , as it was cheaper to manufacture. In the United States, chewing gum experienced a decline in popularity in the early 21st century, as it lost its association with counterculture and teenage rebelliousness. Others blamed smartphones reducing impulse purchases at

160-497: A rubber substitute. Chicle did not succeed as a replacement for rubber, but as a gum cut into strips and marketed as Adams New York Chewing Gum in 1871. Black Jack (1884), which is flavored with licorice, Chiclets (1899), and Wrigley's Spearmint Gum were early popular gums that quickly dominated the market and are all still around today. Chewing gum gained worldwide popularity through American GIs in WWII, who were supplied chewing gum as

192-412: Is composed of gum base , sweeteners, softeners/ plasticizers , flavors, colors, and, typically, a hard or powdered polyol coating. Its texture is reminiscent of rubber because of the physical-chemical properties of its polymer, plasticizer, and resin components, which contribute to its elastic-plastic, sticky, chewy characteristics. The cultural tradition of chewing gum seems to have developed through

224-610: Is considered proprietary information known by select individuals within each gum-manufacturing company. Information about the other components of chewing gum are more accessible to the public and they are listed in Table 2 . Table 2: Common ingredients in the formulation of modern chewing gum Artificial Sweeteners: 0.05–0.5% sugar, dextrose, glucose or corn syrup, erythritol, isomalt, xylitol, maltitol, mannitol, sorbitol, lactitol aspartame, acesulfame-K, saccharine, sucralose, neohesperidine, dihydrichalcone Peppermint and spearmint are

256-420: Is not required by law to be labeled with an expiration date. If chewing gum remains in a stable environment, over time the gum may become brittle or lose some of its flavor, but it will never be unsafe to eat. If chewing gum is exposed to moisture, over time water migration may occur, making the gum soggy. In lollipops with a gum center, water migration can lead to the end of the product's shelf life, as it causes

288-497: Is scattered locales in low-elevation tropical evergreen forest. In addition, jelutong can be tapped for latex and from the 1920s through the 1960s, jelutong latex was an important source of chewing gum . Jelutong has been traditionally overharvested , and is a threatened species in many areas. It is a protected species in parts of Malaysia and Thailand . The tree is grown commercially for timber. Sawdust from this species has been known to cause allergic dermatitis . Jelutong

320-470: Is used for its wood. Along with balsa it is technically a hardwood with many properties similar to that wood. These properties such as the low density, straight grain and fine texture mean it is easy to work with and hence popular with model makers and within the patternmaking trade. The roots are used as a cork substitute. Chewing gum Chewing gum is a soft, cohesive substance designed to be chewed without being swallowed. Modern chewing gum

352-515: The First Americans . Around 1850 a gum made from paraffin wax , a petroleum product, was developed and soon exceeded the spruce gum in popularity. To sweeten these early gums, the chewer would often make use of a plate of powdered sugar, which they would repeatedly dip the gum in to maintain sweetness. William F. Semple, a dentist from Mount Vernon, Ohio , filed an early patent on chewing gum, patent number 98,304, on 28 December 1869. Semple's gum

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384-626: The Fischer–Tropsch process ) Petroleum wax Petroleum wax synthetic Polyethylene Polyisobutylene Polyvinyl acetate Jelutong Leche caspi (sorva) Pendare Perillo Leche de vaca Niger gutta Tunu (tuno) Chilte Natural rubber First, gum base is previously prepared through a melting and straining or filtering process. The formulation for gum base is proprietary information known to few individuals within each gum-producing company. Next, other ingredients such as nutritive and non-nutritive sweeteners and flavors are added to

416-554: The Neolithic period. 5,000-year-old chewing gum made from birch bark tar , with tooth imprints, has been found in Kierikki in Finland. The tar from which the gums were made is believed to have antiseptic properties and other medicinal benefits. It is chemically similar to petroleum tar and is in this way different from most other early gum. The Mayans and Aztecs were the first to exploit

448-407: The balsam tree ( Myroxylon ), creating small sticks of flavored chewing gum he named "Taffy Tolu". Colgan also led the way in the manufacturing and packaging of chicle -based chewing gum, derived from Manilkara chicle , a tropical evergreen tree. He licensed a patent for automatically cutting chips of chewing gum from larger sticks: US 966,160 "Chewing Gum Chip Forming Machine" 2 August 1910 and

480-524: The checkout. Demand for chewing gum also declined during the COVID-19 pandemic , as people were less concerned about bad breath and impulse purchases also declined. U.S. sales of gum fell about 30 percent, and while demand was back up to the pre-pandemic level in 2023 in dollar terms, this was the result of inflation as the average price of a pack increased $ 1.01 from 2018 to $ 2.71 in 2023. Globally, sales were down 10 percent from 2018. Gum base composition

512-477: The coast. The growing population in Jelutong led to rampant crime and thugs roaming the streets. It was only in the 1980s with a rise in the standards of living and urbanisation that Jelutong's criminal notoriety was eradicated. It was in the Jelutong parliamentary constituency where Karpal Singh , a prominent Malaysian lawyer, first entered the national political scene. The Democratic Action Party politician held

544-594: The consumers' intent to form bubbles or the sugar/sugarless dichotomy. Chewing gum typically comes in three formats: tablets, coated pellets, and sticks/ slabs. Bubble gum typically come in three formats as well: tablets, hollow balls, and cubes or chunks. Stick, slab, and tab gums typically come in packs of about five to 17 sticks or more, and their medium size allows for softer texture. Pellet gums, or dragée gums, are pillow shaped pieces that are almost always coated. Packaging of pellet gums can vary from boxes to bottles to blister packs. The coating of pellet gum allows for

576-407: The exterior hard candy shell to soften and the interior gum center to harden. The physical and chemical properties of chewing gum impact all aspects of this product, from manufacturing to sensory perception during mastication. The polymers that make up the main component of chewing gum base are hydrophobic. This property is essential because it allows for retention of physical properties throughout

608-441: The extruder using a vertical cutter. Sheeting is a technique often used for stick, slab and tab gums. Next, gum is either conditioned by being sprinkled with a powdered polyol or coated via the application of subsequent layers of coating using temperature controlled coating basins before it is sent to packaging. Chewing gum can come in a variety of formats ranging from 1.4 to 6.9 grams per piece, and products can be differentiated by

640-461: The gum base until the warm mixture thickens like dough. The gum base mixture is heated during this mixing process to increase the entropy of the polymers to achieve a more uniform dispersion of ingredients. Then, extrusion technology is implemented to smooth, form, and shape the gum. Next, the gum goes through a shaping process that is determined by gum type and consumer demand. For example, cut and wrap (chunk or cube) pieces are severed straight out of

672-529: The main thoroughfare within the suburb, allowing motorists from the city centre to head south towards Bayan Lepas . In recent years, the completion of the Tun Dr Lim Chong Eu Expressway has considerably reduced the daily traffic congestion along Jelutong Road, as motorists now use the coastal expressway to commute between the city centre and Bayan Lepas , bypassing Jelutong Road entirely. Rapid Penang buses 11, 12, 301, 302, 303 and 401 serve

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704-456: The modernization and commercialization of this product mainly took place in the United States. The American Indians chewed resin made from the sap of spruce trees. The New England settlers picked up this practice, and in 1848, John B. Curtis developed and sold the first commercial chewing gum called The State of Maine Pure Spruce Gum. In this way, the industrializing West, having forgotten about tree gums, rediscovered chewing gum through

736-420: The most popular flavors. Food acids are implemented to provide a sour flavor (i.e. citric, tartaric, malic, lactic, adipic, and fumaric acids). Maltitol/Isomalt Mannitol Starch Gum base is made of polymers, plasticizers, and resins. Polymers , including elastomers, are responsible for the stretchy and sticky nature of chewing gum. Plasticizers improve flexibility and reduce brittleness, contributing to

768-399: The mouth of Pinang River . In the mid-19th century, the then forested area was first cleared for agricultural purposes. Factories were set up much later in Jelutong, as the urban population spilled southward from the city centre . In spite of industrialisation, some fishing communities continued to exist up until recently and charcoal makers still make a living from the mangrove swamps along

800-455: The natural and synthetic gum base components approved for use in the United States, demonstrating some examples of key gum base components. Table 3: Gum base ingredients approved for use by the U.S. Food and Drug Administration (2016) Chicle Chiquibul Crown gum Gutta hang kang Massaranduba balata Massaranduba chocolate Nispero Rosidinha Venezuelan chicle Isobutylene-isoprene copolymer ( butyl rubber ) Paraffin (via

832-659: The opportunity for multiple flavor sensations, since coating is done in a layering process and different flavor attributes can be added to various layers. Cube or chunk gums, which are typically intended for bubble blowing, are called cut and wrap gums as they are typically severed from continuous strands of extruded gum and packaged directly. Chewing gum is rather shelf stable because of its non-reactive nature and low moisture content. The water activity of chewing gum ranges from 0.40 to 0.65. The moisture content of chewing gum ranges from three to six percent. In fact, chewing gum retains its quality for so long that, in most countries, it

864-400: The plastic and elastic nature of gum. The interactions of plasticizers within gum base are governed by solubility parameters, molecular weight, and chemical structure. Resins compose the hydrophobic portion of the gum base, responsible for its chewiness. Although the exact ingredients and proportions used in each brand's gum base are trade secrets within the gum industry, Table 3 lists all of

896-684: The positive properties of gum; they used chicle , a natural tree gum , as a base for making a gum-like substance and to stick objects together in everyday use. Forms of chewing gum were also chewed in Ancient Greece . The Ancient Greeks chewed mastic gum , made from the resin of the mastic tree . Mastic gum, like birch bark tar, has antiseptic properties and is believed to have been used to maintain oral health. Both chicle and mastic are tree resins. Many other cultures have chewed gum-like substances made from plants, grasses, and resins . Although chewing gum can be traced back to civilizations worldwide,

928-614: The residents of the suburb, by connecting Jelutong with the city centre and other destinations to the south, including Bukit Jambul , Bayan Baru , Bayan Lepas , Batu Maung and Balik Pulau . A total of four primary schools and one high school are located within Jelutong. The suburb is also home to the headquarters of RECSAM , an educational institute affiliated with the Southeast Asian Ministers of Education Organization . Primary schools High school The Nicol David International Squash Centre, located at Dumbar Hill,

960-432: The seat for over 20 years until 1999, earning him the nickname the ' Tiger of Jelutong '. As of 2020, Jelutong was home to a population of 63,507. With a population density of 14,433/km (37,380/sq mi), the suburb was the most densely populated area in the city of George Town. Ethnic Chinese constituted 70% of Jelutong's population, followed by Malays at 18% and Indians at 8%. Historically, Jelutong Road serves as

992-431: Was intended to clean the teeth and strengthen the chewer's jaw. It was not a sweet treat; ingredients included chalk and powdered licorice root. Charcoal was also suggested as a "suitable" ingredient in the patent. The first flavored chewing gum was created in the 1860s by John Colgan , a Louisville, Kentucky, pharmacist. Colgan mixed with powdered sugar the aromatic flavoring tolu , a powder obtained from an extract of

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1024-734: Was previously known as the Bukit Dumbar Sports Centre. It was here where Nicol David , a top international squash player, was first trained at a young age. Dyera costulata Dyera costulata , the jelutong , is a species of tree in the family Apocynaceae . It grows to approximately 60 metres (200 ft) tall with diameters of 2 metres (5 to 6 ft), or even to 80 m (260 ft) tall with diameters to 3 m (10 ft), and boles clear and straight for 30 m (90 ft). It grows in Malaysia , Borneo , Sumatra and southern Thailand . Its natural distribution

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