However, more clinical studies are recommended to assess the safety of incorporation of isomaltulose alone and with other sweeteners in food products. In isomaltose, the linkage is an α-1→6 glycosidic bond. Conformational maps Available here, 1.”Maltose structure”By Zippanova – Own work, (Public Domain) via Commons Wikimedia Further, this molecule forms during the break down of starch by beta-amylase; it removes one glucose unit at a time, forming the maltose molecule. We use cookies to help provide and enhance our service and tailor content and ads. The enzyme, maltase can break down the structure of maltose via the catalysing the hydrolysis of the glycosidic bond. 1. Moreover, this molecule forms when we treat high maltose syrup with the enzyme transglucosidase (TG). Similarities Between Maltose and Isomaltose The bond from the anomeric carbon of the first monosaccharide unit is directed downward, which is why this is known as an α-glycosidic linkage.
Isomaltulose has low glycemic index, long term energy source and no adverse effects on human health. Therefore, this molecule differs from the maltose molecule due to this linkage (because maltose has alpha 1-4 linkage instead of alpha 1-6 linkage). Therefore, the chemical structure is the major difference between maltose and isomaltose. Maltose is a disaccharide having two glucose units joined with each other via an alpha 1-4 linkage. Therefore, these two forms of disaccharides differ from each other according to the chemical bonding between the two glucose units. All rights reserved. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Isomaltulose (Palatinose) – An emerging carbohydrate. 5. This is mainly because, the ring structure of one of the two glucose molecules can open to present a free aldehyde group, but the other glucose unit cannot open like that because of the nature of the glycosidic bond. 4. Side by Side Comparison – Maltose vs Isomaltose in Tabular Form The below infographic sums up the difference between maltose and isomaltose in tabular form.
“Isomaltose.” Wikipedia, Wikimedia Foundation, 12 July 2018. Isomaltulose is made up of glucose and fructose linked through -(1 6) linkage unlike -(1 2) linkage in sucrose. Stable conformations of beta-isomaltose (alpha-D-glucopyranosyl-(1-->6)-beta-D-glucose) in gas-phase and aqueous solution are investigated in this study using quantum mechanical calculations. It also is a reducing sugar. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. Moreover, it is a reducing sugar, unlike other disaccharide molecules. What is Isomaltose This means that in maltose th… Figure 02: Chemical Structure of Isomaltose. Maltose is a disaccharide. Isomaltose is a disaccharide having two glucose sugar units linked to each other via an alpha 1-6 linkage. Difference Between Stationary and Mobile Phase, Difference Between Monosaccharide and Polysaccharide, Difference Between Zinc Citrate and Zinc Gluconate, Difference Between Glucose C and Glucose D, Similarities Between Maltose and Isomaltose, Side by Side Comparison – Maltose vs Isomaltose in Tabular Form, Difference Between Coronavirus and Cold Symptoms, Difference Between Coronavirus and Influenza, Difference Between Coronavirus and Covid 19, Difference Between Formal Charge and Oxidation State, Difference Between Bioassay and Chemical Assay, Difference Between Adenoma and Adenocarcinoma, Difference Between Transcriptional and Posttranscriptional Gene Silencing, Difference Between Coupled and Uncoupled Reaction, Difference Between True and False Aneurysm, Difference Between Herd and Ring Immunity, Difference Between Allylic and Benzylic Halides, Maltose and Isomaltose are reducing sugars. The difference between isomaltose and maltose is the glycosidic linkage that joins two glucose units. https://doi.org/10.1016/j.fbio.2017.04.003. … The difference between the two disaccharides is that an α-(1→4) bond connects the two glucose parts in maltose while in isomaltose they are linked by an α-(1→6) bond. Isomaltulose is completely, cleaved in the small intestine although the process is less rapid compared to sucrose. Isomaltose is an isomer of maltose because both these have a nearly similar chemical structure with a slight difference in linking the two sugar units. Isomaltose is an isomer of maltose because both these have a nearly similar chemical structure with a slight difference in linking the two sugar units. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Available here 3. 2. Furthermore, in maltose, the first carbon of one glucose unit binds with the fourth carbon of the other sugar unit while the first carbon of one of the glucose units binds with the sixth carbon of the other sugar unit in isomaltose. Maltose is a reducing sugar 3) because the ring of one of the two glucose units can open to present a free aldehyde group; the other one cannot because of the nature of the glycosidic bond. Summary. Maltose (/ ˈ m ɔː l t oʊ s / or / ˈ m ɔː l t oʊ z /), also known as maltobiose or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) bond.In the isomer isomaltose, the two glucose molecules are joined with an α(1→6) bond.Maltose is the two-unit member of the amylose homologous series, the key structural motif of starch. Sucrose is an extensively used since ages. What is Maltose In the case of maltose and isomaltose, the sugar unit is a glucose molecule. Glucose is a hexose, meaning; it has six carbon atoms in a pyranose ring.
Compare the Difference Between Similar Terms. 6. Compared to sucrose, isomaltulose has high stability, tooth friendly, slow digestibility and 40–50% of sweetening power. Therefore, the key difference between maltose and isomaltose is that maltose has two glucose units joined with each other via an alpha 1-4 bond whereas isomaltose has two glucose units joined with each other via an alpha 1-6 bond. Isomaltose is an isomer of maltose. Overview and Key Difference Maltose is broken down by the maltase enzyme, which catalyses the hydrolysis of the glycosidic bond, into two glucose molecules. However, sucrose consumption is associated with raising health concerns in the consumers of modern world. Addition of sweetening agents, particularly carbohydrates has been the common approach to enhance food taste.
The key difference between maltose and isomaltose is that the maltose has two glucose units joined to each other via an alpha 1-4 bond whereas the isomaltose has two glucose units joined to each other via an alpha 1-6 bond. © 2017 Elsevier Ltd. All rights reserved. The amylase enzymes generate both maltose and isomaltose fragments when they digest starch. “Maltose.” Wikipedia, Wikimedia Foundation, 28 June 2018. Hence, this is the key difference between maltose and isomaltose.
The OH group on the anomeric carbon of the second glucose can be in either the α or the β position, as shown in Figure 1. More importantly, isomaltose is an isomer of maltose. It has been successfully used into various food products viz., chocolate, breakfast cereals, chewing gums and dairy products especially, ice cream and yoghurt. In maltose, the glucose molecules are linked together by an α-1→4 glycosidic bond. Ex: maltodextrin, corn syrup, etc. However, both these sugar forms are reducing sugars. 2. Isomaltulose (6-O--D-glucopyranosyl-D-fructofuranose), also known as palatinose is a natural component of honey and also produced at commercial levels from sugar cane. Terms of Use and Privacy Policy: Legal. Therefore, the key difference between maltose and isomaltose is that maltose has two glucose units joined with each other via an alpha 1-4 bond whereas isomaltose has two glucose units joined with each other via an alpha 1-6 bond. @media (max-width: 1171px) { .sidead300 { margin-left: -20px; } }
It thus causes attenuated blood glucose and insulin response, a property which may be particularly favourable for diabetics (Kawai et al., 1989, Grembecka, 2015).Hence, the isomaltulose is considered the best alternative for sucrose based food products. This sugar occurs as a component of malt and also present in highly variable quantities in partially hydrolysed starch products.
Madhu is a graduate in Biological Sciences with BSc (Honours) Degree and currently persuing a Masters Degree in Industrial and Environmental Chemistry. By continuing you agree to the use of cookies. As a result, food researchers are looking for alternative sweeteners to fulfil the consumer preference. On paper this is just a different number but for the enzyme that has to split the disaccharide it is an entirely different job. It means that it has two sugar units joined to each other. More precisely, isomaltose is an isomer of maltose. In this, the first carbon atom of one glucose molecules links to the fourth carbon atom of the other glucose molecule to form the 1-4 glycosidic bond. 2.”Isomaltose structure”By Su-no-G – Own work by ChemDraw, (Public Domain) via Commons Wikimedia. Maltose is a disaccharide that has two glucose units joined with each other via an alpha 1-4 linkage whereas Isomaltose is a disaccharide having two glucose sugar units linked to each other via an alpha 1-6 linkage. With a mind rooted firmly to basic principals of chemistry and passion for ever evolving field of industrial chemistry, she is keenly interested to be a true companion for those who seek knowledge in the subject of chemistry. It results in a product of the caramelization of glucose. Isomaltulose could be used as an effective alternative to sucrose due its characteristic properties like tooth friendly, having no adverse effects on product quality and human health. 1.
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