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Bisphenol-a (BPA) is found in many beverage and food containers, including baby bottles. The main use for BPA is in the production of plastic items, like water bottles, computer cases, sunglasses and canned and beverage goods. In addition, this a component of this chemical is used in making the heat sensitive coating on thermal paper possible for printing. Also, polycarbonate plastic food containers are made from the chemical BPA. These food storage containers provide a durable, tough, see through and shatter free way for restaurants to store food. In addition to contributing to safety, containers made with BPA plastic provide us with a low-cost option that can be used for a long time.…
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Slow, can absorb its weight in water and not feel wet. Repels water droplets. Very slow drying.…
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In “The Yellow Wallpaper”, it is understood that the narrator is a woman who has a mental illness but cannot overcome it due to her husband’s controlling ways. Charlotte Perkins Gilman illustrates the ideological victimization of many women of the early 19th century through a gothic tale of humor where women suffering from post-partum depression is isolated.…
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Pheochromocytoma, a rare condition caused by a tumor in the adrenal medulla affecting the chromaffin cells, results in an excess production of catecholamines (epinephrine and norepinephrine) and metanephrines. The most immediate effect of this condition is severe hypertension, but other symptoms (such as headache, palpitations and excessive generalized sweating) can also appear.…
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Industrial Separation Research a) Identify a mixture that is separated industrially: Olive oil b) Identify which ‘sphere’ it is obtained from: Biosphere c) Identify the industrial separation processes used on this mixture: Crushing/grinding: The olive fruit is crushed and ground by a metal hammer in a mill to make a paste. Beating: The olive fruit paste is added to water is additionally beaten to extract more oil from the olive cells. Salt can be used to assist osmotic breakdown [of the cells] and release oil Centrifuging: The mixture is poured into a horizontal centrifuge and continuously spun at high speed. The light oil forms in the upper, inner layer, and the remaining water and heavier fruit pieces form the outer layers. The light…
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into fibers. The fibers are strong, durable, and resistant to heat and fire. They are also long, thin…
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Paper towels are made from softwood trees which contain long fibers. The tree goes thru several processes before it is actually turned into a paper towel. The paper towel is made from pulp in which the water is removed and the fibers then bond into sheets. Also, resin is added to the process to give the paper towel strength (Union). Several layers are then put together with adhesive and then formed into a paper towel (Choudhury). Some paper towels are embossed to form air pockets which help to absorb more liquid and help to add more strength (Union).…
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Republic of the Philippines TECHNOLOGICAL UNIVERSITY OF THE PHILIPPINES Office of the Vice President for Academic Affairs Industrial Relations and Job Placement Ayala Boulevard, Ermita, Manila NARRATIVE REPORT ON SIT PROGRAM Product Design and Development Technology (PDDT) Work Stations: Product Design and Development Center of the Philippines (PDDCP) – CCP Complex Christmas Décor Producers and Exporters Association of the Philippines (CDPEAP) – CITEM Compound Chamber of Furniture Industry of the Philippines - Cebu (CFIP-Cebu) – ManilaFAME 2013 at SMX Convension Center From November 12, 2012 to March 25, 2013 TABLE OF CONTENTS I.…
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Styrofoam is a trademarked brand of closed-cell extruded polystyrene foam currently made for thermal insulation and craft applications examples of these Styrofoam are disposable coffee cups, coolers, or cushioning material in packaging. Styrofoam is widely used for insulator and packaging. The disposal of these products creates environmental pollution because of their non-degradable nature. Because of this problem, people think a possible way to reduce the disposal of Styrofoam and recycle this product. Styrofoam is abundant and many started to recycle and reuse it. One of the ideas that came into mind was Glue from Styrofoam. Styrofoam when melted has very strong adhesive properties that can rival several commercial glue products.…
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In conclusion, each kernel contains a small drop of water stored inside a circle of soft starch which produces moisture. The soft starch is surrounded by the kernel’s hard outer shell. Moisture is very important, because if…
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Oil palm is the most productive oil seed in the world. A single hectare of oil palm may yield 5,000 kilograms of crude oil, or nearly 6,000 liters of crude, making the crop remarkably profitable when grown in large plantations, one study that looked at 10,000 hectare-plantations suggests an internal rate of return of 26 percent annually. As such,…
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RBD Palm olein oil is a type of vegetable oils with the ratio of saturation to unsaturation 40%: 60%. Soybean oil is another type of vegetable oils with the ratio of saturation to unsaturation 20%: 80%. In addition to the chemical alterations that occur during frying, changes in the oil’s physical and thermal properties, such as surface tension, viscosity, density, specific heat, and convective heat transfer coefficient can affect food quality (Rosana G. Moreira, M.Elena Castell-Perez, Maria A. Barrufat, (1999). Deep Fat Frying, pg 51). In this experiment, we use RBD palm olein oil and soybean oil as frying mediums, potato chips and chicken nuggets as food materials. During the frying process, the moisture evaporates at the product surface and leaves the product. The rates at which a food product loses moisture under different frying conditions is varies. On the other hand, the rapid drying is critical for ensuring the desirable structure and texture characteristics of the final products. However, the loss of water results in a substantial absorption of oil by the product. As a result, crust is formed and pores are developed. Flavor quality of fried food is affected by oil type, frying conditions and degradation products (Casimir C. Akoh, David B. Min,(2008). Food Lipids, pg 199). Unsaturated triglyceride polymerize during heating thus increasing the viscosity of the fat. Gutierrez and Dobarganes (1988) indicated that the increase in viscosity and density in frying oil was the consequence of a polymerization reaction. The expectation of the result is the flavor of the fried product improves after the first stage of frying and becomes less acceptable during the last stage. This is also applied to other sensory evaluations such as crispiness, color and shape.…
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The palm oil is contained in palm pulp, the pulp is high moisture content and rich lipase. Usually we adopt the method of press to produce it, and this technology is very mature. Before press , Fresh fruit bunch will be taken sterilizer and thresher pretreatment : After weighting the FFB , it is loaded the FFB conveyor by loading ramp, then the FFB will convey to the vertical sterilizer. FFB will be sterilized treatment in sterilizer, the FFB will be heated and sterilized treatment for several time to avoid the lipase be hydrolyzed , after sterilizer ,the FFB is distributed bunch conveyor by the mechanical bunch feeder and enter the thresher machine which separate the palm fruit and bunch , for the empty bunch ,it is conveyed empty bunch loading platform and transport it to outside the factory area at fixed period , the empty bunch could be used as fertilizer and repeat use ; The palm fruit which has passed sterilizer and thresher processing should be sent to digester and then go to special screw press to get the crude palm oil (CPO) form the pulp . But the pressed palm oil contain a lot of water and impurity which need to be clarified by sand trap tank and treated by the vibrating…
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The main goal of this research is determine whether Musa Sapientum (banana) leaves can be another source of fiber for paper making by producing quality handmade paper out of Musa sapientum (banana) leaves. The banana leaves were gathered cut into small pieces and soaked in a basin full of water overnight. It underwent boiling in water, then in NaOH solution, and then lastly in soda ash solution to separate the cellulose fibers from the lignin and other extraneous components. The leaves were rinsed thoroughly and strained in between the boiling processes. It underwent pounding and beating with a mortar and pestle. The banana pulp was bleached with calcium hypochlorite and hydrogen peroxide, and was washed thoroughly to removed any trace of chemical. Three different treatments of handmade paper were produced with three replicates for each treatment.…
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The oil palm tree originates from West Africa where it grows in the wild and later was developed into an agricultural crop. It was introduced to Malaysia, then Malaya, by the British in early 1870’s as a decorative plant. In 1917, the first commercial planting took place in Tennamaran Estate in Selangor, laying the foundations for the vast oil palm plantations and the palm oil industry in Malaysia.…
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