File:Amylopektin_Sessel.svg · Wikimedia Commons · See Wikimedia Commons
amylopectin
Sign in to saveAmylopectin is a water-insoluble polysaccharide and highly branched polymer of α-glucose units found in plants. It is one of the two components of starch, the other being amylose. thumb|Relation of amylopectin to starch granule|center Plants store starch within specialized organelles called amyloplasts. To generate energy, the plant hydrolyzes the starch, releasing the glucose subunits. Humans and other animals that eat plant foods also use amylase, an enzyme that assists in breaking down amylopectin, to initiate the hydrolysis of starch.
Chemical data
- Formula
- C30H52O26
- Molecular weight
- 828.7 g/mol
- IUPAC name
- (2R,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-6-[[(2R,3S,4R,5R,6R)-4,5-dihydroxy-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-2-yl]methoxy]-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
- SMILES
- C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@H](O3)O[C@@H]4[C@H](O[C@@H]([C@@H]([C@H]4O)O)O)CO)O)O)O[C@@H]5[C@@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O)CO)O)O)O)O
- InChIKey
- WMGFVAGNIYUEEP-WUYNJSITSA-N
- XLogP
- -10.6
- Polar surface area
- 427 Ų
- H-bond donors
- 17
- H-bond acceptors
- 26
- Formal charge
- 0
via PubChem
Research
3,647 papers- On the cluster structure of amylopectin.Plant molecular biology · 2022
- Amylopectin branch trimming and biosynthesis elucidated by the rice isoamylase ISA1-ISA2 heterocomplex.Nature communications · 2025
- Critical examination of the characterization techniques, and the evidence, for the existence of extra-long amylopectin chains.Comprehensive reviews in food science and food safety · 2023
- Amylopectin Partially Substituted by Cellulose in the Hindgut Was Beneficial to Short-Chain Fatty Acid Production and Probiotic Colonization.Microbiology spectrum · 2023
- A model for the reproduction of amylopectin cluster by coordinated actions of starch branching enzyme isoforms.Plant molecular biology · 2023
via PubMed
Wikidata facts
- Mass
- 828.274682
Show 4 more facts
- canonical SMILES
- C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)OCC3C(C(C(C(O3)OC4C(OC(C(C4O)O)O)CO)O)O)OC5C(C(C(C(O5)CO)O)O)O)CO)O)O)O)O
- Commons category
- Amylopectin
- chemical formula
- C₃₀H₅₂O₂₆
- isomeric SMILES
- C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@H](O3)O[C@@H]4[C@H](O[C@@H]([C@@H]([C@H]4O)O)O)CO)O)O)O[C@@H]5[C@@H]([C@H]([C@@H]([C@H](O5)CO)O)O)O)CO)O)O)O)O
Sources (3)
via Wikidata · CC0
~16 min read
Article
15 sectionsContents
- Structure
- History
- Metabolism
- Applications
- Food
- Textiles
- Engineering
- Clinical applications
- Drug delivery
- Tissue engineering
- Fibers
- Bionanocomposites
- See also
- References
- External links
Amylopectin is a water-insoluble polysaccharide and highly branched polymer of α-glucose units found in plants. It is one of the two components of starch, the other being amylose. thumb|Relation of amylopectin to starch granule|center Plants store starch within specialized organelles called amyloplasts. To generate energy, the plant hydrolyzes the starch, releasing the glucose subunits. Humans and other animals that eat plant foods also use amylase, an enzyme that assists in breaking down amylopectin, to initiate the hydrolysis of starch.
Starch is made of about 70–80% amylopectin by weight, though it varies depending on the source. For example, it ranges from lower percent content in long-grain rice, amylomaize, and russet potatoes to 100% in glutinous rice, waxy potato starch, and waxy corn. Amylopectin is highly branched, being formed of 2,000 to 200,000 glucose units. Its inner chains are formed of 20–24 glucose subunits.thumb|100px|Structure of the amylopectin molecule|center