Maltose monohydrate
(Synonyms: 麦芽糖-水合物) 目录号 : GC30196
A disaccharide
Cas No.:6363-53-7
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Maltose is a disaccharide found in plants and bacteria.1,2 It is a degradation product of starch in plants that accumulates in a circadian rhythm-, day length-, and temperature-dependent manner.1 Maltose is formed from starch by the action of β-amylase and is a source of glucose in bacteria and mammals.2,3
1.Lu, Y., and Sharkey, T.D.The importance of maltose in transitory starch breakdownPlant Cell Environ.29(3)353-366(2006) 2.Boos, W., and B?hm, A.Learning new tricks from an old dog: MalT of the Escherichia coli maltose system is part of a complex regulatory networkTrends Genet.16(9)404-409(2000) 3.Tester, R.F., Karkalas, J., and Qi, X.Starch structure and digestibility enzyme-substrate relationshipWorld Poultry Sci. J.60(2)186-195(2004)
| Cas No. | 6363-53-7 | SDF | |
| 别名 | 麦芽糖-水合物 | ||
| Canonical SMILES | O[C@H]1[C@H](O)[C@@H](O)[C@@H](O[C@H]2[C@H](O)[C@@H](O)[C@@H](O)O[C@@H]2CO)O[C@@H]1CO.O | ||
| 分子式 | C12H24O12 | 分子量 | 360.31 |
| 溶解度 | Water : 100 mg/mL (277.54 mM) | 储存条件 | Store at -20°C, protect from light |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.7754 mL | 13.8769 mL | 27.7539 mL |
| 5 mM | 0.5551 mL | 2.7754 mL | 5.5508 mL |
| 10 mM | 0.2775 mL | 1.3877 mL | 2.7754 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Formation of radicals in irradiated maltose - the role of hydrogen bonding with water
Free Radic Res 2022 Feb;56(2):222-227.35531665 10.1080/10715762.2022.2071267
The EPR spectra of irradiated maltose were obtained and compared to those of sucrose and glucose. In maltose anhydrite, the main radicals were produced from the cleavage of the glycoside bond at the C1 carbon with a carbonyl at the C2 carbon the same as those in sucrose. On the contrary, a carbonyl anion radical involving the proton hydrogen bonding to a water molecule was also observed in Maltose monohydrate. The conformation of the carbonyl anion radical changed and became stable.
The local electric field effect of onion-like carbon nanoparticles for improved laser desorption/ionization efficiency of saccharides
Colloids Surf B Biointerfaces 2022 Mar;211:112321.35032850 10.1016/j.colsurfb.2022.112321
It is still a challenge to improve ionization efficiency of saccharides in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Herein, the highly curved onion-like carbon nanoparticles (OCS) were synthesized from the low-price candle raw via a facile strategy. The unique nanostructure of OCS showed large surface area with plentiful mesoporous architecture, highly curved sp2 carbon with regulating electronic effect, and good hydrophilicity, which could be beneficial to facilitate the desorption and ionization efficiency in MS process. The prepared OCS material as MALDI matrix exhibited the superior performance for the detection of xylose, glucose, Maltose monohydrate, and raffinose pentahydrate in positive-ion mode with low background noise, enhanced ion intensities, uniform distribution, excellent reproducibility, good salt-tolerance, and high sensitivity compared to control candle soot (CS) and traditional α-cyano-4-hydroxycinnamic acid (CHCA) matrices. This highly effective LDI of OCS matrix was attributed to its enhancing local electric field effect, strong UV absorption ability, and high photo-thermal conversion performance. Furthermore, the OCS-assisted LDI MS approach was employed to quantitatively detect glucose in rat serum. This LDI MS platform may have valuable for the analysis of metabolites in clinical research.
Production of keto-disaccharides from aldo-disaccharides in subcritical aqueous ethanol
Biosci Biotechnol Biochem 2016 May;80(5):998-1005.26786171 10.1080/09168451.2015.1127135
Isomerization of disaccharides (maltose, isomaltose, cellobiose, lactose, melibiose, palatinose, sucrose, and trehalose) was investigated in subcritical aqueous ethanol. A marked increase in the isomerization of aldo-disaccharides to keto-disaccharides was noted and their hydrolytic reactions were suppressed with increasing ethanol concentration. Under any study condition, the maximum yield of keto-disaccharides produced from aldo-disaccharides linked by β-glycosidic bond was higher than that produced from aldo-disaccharides linked by α-glycosidic bond. Palatinose, a keto-disaccharide, mainly underwent decomposition rather than isomerization in subcritical water and subcritical aqueous ethanol. No isomerization was noted for the non-reducing disaccharides trehalose and sucrose. The rate constant of maltose to maltulose isomerization almost doubled by changing solvent from subcritical water to 80 wt% aqueous ethanol at 220 °C. Increased Maltose monohydrate concentration in feed decreased the conversion of maltose and the maximum yield of maltulose, but increased the productivity of maltulose. The maximum productivity of maltulose was ca. 41 g/(h kg-solution).
Controlled release of saccharides from matrix tablets
Eur J Pharm Biopharm 2006 Feb;62(2):163-70.16343875 10.1016/j.ejpb.2005.07.009
The aim of this study was to design site specific, controlled release tablets of N-acetyl-d-glucosamine (NAG), Maltose monohydrate and maltopentaose by using hydrophobic matrix formers starch acetate (SA) and ethyl cellulose (EC). The optimized matrices, which had either low porosity and high drug load or high porosity and low drug load, released the saccharides within the desired 2-4 h. In general, it was possible to control the release rate of saccharides by altering the relative amount of hydrophobic matrix former in the tablet and tablet porosity. The release type of saccharides from these formulations varied from immediate release to sustained release. In the case of sustained release formulations, it was found that the release of Maltose monohydrate and maltopentaose was biphasic and slower than the release rate of NAG from similar tablets. NAG release kinetics followed square root of time kinetics, while in the case of Maltose monohydrate and maltopentaose, the release kinetics were zero order in both phases. The biphasic dissolution profile was proposed to be caused by water mediated recrystallisation of the disordered material formed during the dissolution. Both SA and EC matrices were found to represent suitable controlled oral delivery vehicles for saccharides.
Studies on molecular interactions of some sweeteners in water by volumetric and ultrasonic velocity measurements at T=(20.0-45.0°C)
Food Chem 2014 Mar 1;146:460-5.24176368 10.1016/j.foodchem.2013.09.076
Densities and ultrasonic velocity values for aqueous solutions of two sweeteners viz., Maltose monohydrate and acesulfame-K have been measured as a function of concentration at 20.0-45.0°C and atmospheric pressure. Solutions of acesulfame-K were treated as electrolyte, while maltose was considered as non-electrolyte. The apparent molar and specific volumes, their isentropic apparent molar and specific compressibilities, as well as their compressibility hydration numbers have been calculated and reported. Negative deviations from Debye-Huckel limiting law of apparent molar volume for acesulfame-K was obtained at given temperatures and can be used as a direct measure of the ion-ion and ion-solvent interactions. Furthermore, apparent specific volumes of the solutes were calculated and it was found that these values of the investigated solutes lie on the borderline between the values reported for sweet substances. The partial molar expansibility, its second derivative values, (∿2)V(0)/∂T(2)) and thermal expansion coefficient have been estimated.