https://wikimd.com/index.php?action=history&feed=atom&title=Polyhydroxyalkanoates Polyhydroxyalkanoates - Revision history 2026-04-06T19:37:32Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.com/index.php?title=Polyhydroxyalkanoates&diff=6319597&oldid=prev Prab: CSV import 2025-02-18T04:58:16Z <p>CSV import</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 04:58, 18 February 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l25">Line 25:</td> <td colspan="2" class="diff-lineno">Line 25:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Polymer-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Polymer-stub}}</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{medicine-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{medicine-stub}}</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;gallery&gt;</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Poly-(R)-3-hydroxybutyrat.svg|Poly-(R)-3-hydroxybutyrate structure</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Polyhydroxyalkanoates.png|Polyhydroxyalkanoates</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Bacillus_subtilis_Gram.jpg|Bacillus subtilis Gram stain</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Poly-3-hydroxyvalerat.svg|Poly-3-hydroxyvalerate structure</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Poly-4-hydroxybutyrat.svg|Poly-4-hydroxybutyrate structure</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;/gallery&gt;</ins></div></td></tr> </table> Prab https://wikimd.com/index.php?title=Polyhydroxyalkanoates&diff=5390867&oldid=prev Prab: CSV import 2024-03-11T07:20:38Z <p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Polyhydroxyalkanoates&#039;&#039;&#039; (&#039;&#039;&#039;PHA&#039;&#039;&#039;) are [[polyester]]s produced in nature by numerous [[microorganism]]s, including through [[bacterial fermentation]] of [[sugar]] or [[lipid]]s. When produced by bacteria they serve as both a source of [[energy]] and as a [[carbon]] sink. <br /> <br /> == Production ==<br /> PHA is produced by [[microorganism]]s (like [[Alcaligenes eutrophus]] or [[Ralstonia eutropha]] and [[Bacillus megaterium]]) under nutrient-limiting conditions with excess carbon. This process involves the conversion of carbon sources, like [[glucose]], to PHA by the action of certain enzymes. <br /> <br /> == Structure ==<br /> Polyhydroxyalkanoates are linear [[polyester]]s produced in nature by bacterial fermentation of sugar or lipids. They are produced by the bacteria to store carbon and energy. More than 150 different monomers can be combined within this family to give materials with extremely different properties. These plastics are biodegradeable and are used in the production of [[bioplastics]].<br /> <br /> == Uses ==<br /> PHA is used in the production of [[bioplastics]]. They are also used in the medical field for the production of [[sutures]], [[slings]], [[bone plates]], and [[skin substitutes]]. <br /> <br /> == Environmental Impact ==<br /> PHA is a biodegradable plastic that can be composted and digested. It does not produce toxic byproducts when degraded, unlike many other plastics. <br /> <br /> == See Also ==<br /> * [[Bioplastics]]<br /> * [[Bacterial fermentation]]<br /> * [[Polyester]]<br /> <br /> [[Category:Bioplastics]]<br /> [[Category:Polyesters]]<br /> [[Category:Biodegradable materials]]<br /> [[Category:Biopolymers]]<br /> <br /> {{Polymer-stub}}<br /> {{medicine-stub}}</div> Prab