D(-)-과당
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D(-)-과당 속성
- 녹는점
- 119-122 °C (dec.)(lit.)
- 알파
- -92.25 º (c=10,H2O,on dry sub.)
- 끓는 점
- 232.96°C (rough estimate)
- 밀도
- 1.59
- 굴절률
- -92 ° (C=4, H2O)
- 저장 조건
- room temp
- 용해도
- H2O: 1 M at 20 °C, 투명, 무색
- 산도 계수 (pKa)
- pKa (18°): 12.06
- 물리적 상태
- 결정 또는 결정성 분말
- 색상
- 하얀색
- 수소이온지수(pH)
- 5.0-7.0 (25℃, 0.1M in H2O)
- 냄새
- 100.00%에서. 냄새 없는
- ?? ??
- 냄새 없는
- optical activity
- [α]20/D 93.5 to 91.0°, c = 10% in H2O
- 수용성
- 3750g/L(20℃)
- 최대 파장(λmax)
- λ: 260 nm Amax: 0.04
λ: 280 nm Amax: 0.04
- Merck
- 14,4273
- BRN
- 1239004
- 안정성
- 안정적인. 강한 산화제와 호환되지 않습니다.
- InChIKey
- LKDRXBCSQODPBY-GWVKGMJFSA-N
- LogP
- -1.029 (est)
- CAS 데이터베이스
- 57-48-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | C | ||
---|---|---|---|
위험 카페고리 넘버 | 34 | ||
안전지침서 | 24/25-45-36/37/39-27-26 | ||
WGK 독일 | 3 | ||
RTECS 번호 | LS7120000 | ||
F 고인화성물질 | 3 | ||
자연 발화 온도 | 360 °C | ||
TSCA | Yes | ||
HS 번호 | 17025000 | ||
기존화학 물질 | KE-17262 |
D(-)-과당 C화학적 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 Solid역사
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 semen정의
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.D(-)-과당 준비 용품 및 원자재
원자재
사카라이드하이드롤리세이트
beta-D-Fructopyranose
High Fructose Syrups
수크로스(설탕)
GLUCOSE ISOMERASE FROM STREPTOMYCES
알파-D-글루코피라노스
IRISH MOSS
이산화탄소
Invertase,from yeast
AROMA
꿀
Corn syrup
INULIN, 14C-CARBOXYLATED
Immobilized glucose isomerase preparation
당밀
옥수수 침지액
(2S,3R)-3-Hydroxyasparagine
3-Phenyl-L-serine
준비 용품
D(-)-과당 공급 업체
글로벌( 617)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12459 | 58 |
Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 |
daisy@crovellbio.com | China | 5964 | 58 |
Shaanxi TNJONE Pharmaceutical Co., Ltd | +8618740459177 |
sarah@tnjone.com | China | 986 | 58 |
Ouhuang Engineering Materials (Hubei) Co., Ltd | +8617702722807 |
admin@hbouhuang.com | China | 2999 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 |
info@tnjchem.com | China | 2989 | 55 |
Shanghai Zheyan Biotech Co., Ltd. | 18017610038 |
zheyansh@163.com | CHINA | 3620 | 58 |
career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8822 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Xi'an Kono chem co., Ltd., | 029-86107037 13289246953 |
info@konochemical.com | China | 2995 | 58 |
D(-)-과당 관련 검색:
수크로스(설탕) 락툴로오스 리브린산 알돌라아제, 프럭토스 이인산염 D-과당-1,6-디인산염 트리나트륨 염 D(-)-과당
TOMATO
Benzocaine
Orange sweet oil
Banana powder
Ginger powder
Hesperidin
Honey peach powder
Mulberry powder
Broccoli powder
Passion flower P.E
Black plum powder
3-O-α-D-Glucopyranosyl-D-fructose,3-O-α-D-Glucopyranosyl-D-fructose,3-O-α-D-Glucopyranosyl-D-fructose