D(-)-과당

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P271：옥외 또는 환기가 잘 되는 곳에서만 취급하시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

D(-)-과당 MSDS

• Fruit sugar

D(-)-과당 화학적 특성, 용도, 생산

• 개요

  과당이라 함은 전분을 주원료로 하여 당화시켜 얻은 포도당액을 이성화한 것이거나, 설탕을 가수분해하여 얻은 당액을 가공한 것으로 액상과당, 결정과당 등을 말한다.

• 용도

  첨용 용도로는 감미, 노화방지, 부패방지, 보습성 증가, 향 증가, 색깔 및 식감 향상에 사용한다. 시약용 용도로는 화학적 방법에 의한 물질의 검출이나 정량을 위한 R&D용으로 사용한다.

• 화학적 성질

  White Cyrstalline Solid

• 역사

  Despite this ubiquity, fructose remained a noncommercial product until the 1980s because of the expense involved in its isolation and the care required for its handling. The development of technologies for preparing fructose from glucose in the isomerized mixture led to a greater availability of pure, crystalline fructose in the 1970s. However, the price for pure fructose was high enough in 1981 that the product was not competitive with sucrose and corn syrups as a commercial sweetener. With the entry of corn wet-milling companies into the crystalline fructose market in the late 1980s, raw material economies and enlarged manufacturing scale led to a nearly 10-fold production increase within a five-year period, making fructose prices competitive with other sweeteners for specific applications.

• 용도

  D-Fructose occurs in a large number of fruits, honey, and as the sole sugar in bull and human semen

• 정의

  A sugar found in fruit juices, honey, and cane sugar. It is a ketohexose, existing in a pyranose form when free. In combination (e.g. in sucrose) it exists in the furanose form.

• 생산 방법

  Fructose, a monosaccharide sugar, occurs naturally in honey and a large number of fruits. It may be prepared from inulin, dextrose, or sucrose by a number of methods. Commercially, fructose is mainly manufactured by crystallization from high-fructose syrup derived from hydrolyzed and isomerized cereal starch or cane and beet sugar.

• 일반 설명

  Fructose is a monosaccharide. It is present in fruits and vegetables. Fructose is the major carbohydrate in the diet. It binds with glucose to form sucrose. Excessive intake of fructose is associated with obesity, type 2 diabetes and cardiovascular disease.

• Safety

  Although it is absorbed more slowly than dextrose from the gastrointestinal tract, fructose is metabolized more rapidly. Metabolism of fructose occurs mainly in the liver, where it is converted partially to dextrose and the metabolites lactic acid and pyruvic acid. Entry into the liver and subsequent phosphorylation is insulinindependent. Further metabolism occurs by way of a variety of metabolic pathways. In healthy and well regulated diabetics, glycogenesis (glucose stored as glycogen) predominates.
  Excessive oral fructose consumption (>75 g daily) in the absence of dietary dextrose in any form (e.g. sucrose, starch, dextrin, etc.) may cause malabsorption in susceptible individuals, which may result in flatulence, abdominal pain, and diarrhea. Except in patients with hereditary fructose intolerance, there is no evidence to indicate that oral fructose intake at current levels is a risk factor in any particular disease, other than dental caries.

• 저장

  Fructose is hygroscopic and absorbs significant amounts of moisture at relative humidities greater than 60%. Goods stored in the original sealed packaging at temperatures below 25°C and a relative humidity of less than 60% can be expected to retain stability for at least 12 months.
  Aqueous solutions are most stable at pH 3–4 and temperatures of 4–70°C; they may be sterilized by autoclaving.

• Purification Methods

  Dissolve D(-)-fructose in an equal weight of water (charcoal, previously washed with water to remove any soluble material), filter and evaporate under reduced pressure at 45-50o to give a syrup containing 90% of fructose. After cooling to 40o, the syrup is seeded and kept at this temperature for 20-30hours with occasional stirring. The crystals are removed by centrifugation, washed with a small quantity of water and dried to constant weight under a vacuum over conc H2SO4. For higher purity, this material is recrystallised from 50% aqueous ethanol [Tsuzuki et al. J Am Chem Soc 72 1071 1950]. [Beilstein 31 H 321, 1 IV 4401.]

• 비 호환성

  Incompatible with strong acids or alkalis, forming a brown coloration. In the aldehyde form, fructose can react with amines, amino acids, peptides, and proteins. Fructose may cause browning of tablets containing amines.

• Regulatory Status

  Included in the FDA Inactive Ingredients Database (oral solutions, syrup, and suspensions; rectal preparations; intravenous infusions). Included in the Canadian List of Acceptable Non-medicinal Ingredients.

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