Matches in SemOpenAlex for { <https://semopenalex.org/work/W2051728492> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2051728492 endingPage "11" @default.
- W2051728492 startingPage "1" @default.
- W2051728492 abstract "In this study high-amylose potato (HAP) starch films were prepared by casting from aqueous solution. The relative crystallinity of the HAP films was determined to be 25% using wide angle X-ray diffraction. The films were surface esterified with octanoyl chloride and pyridine using heterogeneous reaction conditions. The chemical composition and the degree of starch substitution of the films were determined with electron spectroscopy for chemical analysis. The esterification reaction at the surface was initially very fast. The HAP films had a degree of substitution of approximately 2 after only 15 min at 80 °C. Attenuated total reflectance FT/IR measurements of the films revealed that the depth at which the esterification took place was at least 1.1 μm. FT/IR transmission analysis through a tablet of the film showed that esterification was not taking place to a high degree in the bulk and was thus concentrated to the surface region. An experimental design was used to optimise the degree of starch substitution by varying concentration, temperature and time. The experiments showed that the degree of starch substitution could be varied from 0.24 to 2.79 depending on treatment conditions, where the concentration of octanoyl chloride was the most important parameter. The morphology of the modified HAP films, as shown by scanning electron microscopy, exhibited a rougher surface structure than the unmodified films. The surface energy of the modified HAP films (∼40 mJ/m2) was lower than for unmodified HAP films (∼50 mJ/m2), as determined by static contact angle measurements. Water vapour transmission and water absorption measurements revealed that the water penetration through the HAP films decreased almost linearly with the degree of starch substitution." @default.
- W2051728492 created "2016-06-24" @default.
- W2051728492 creator A5001045429 @default.
- W2051728492 date "2003-10-01" @default.
- W2051728492 modified "2023-10-16" @default.
- W2051728492 title "Surface octanoylation of high-amylose potato starch films" @default.
- W2051728492 cites W1004844689 @default.
- W2051728492 cites W1481725533 @default.
- W2051728492 cites W1967059533 @default.
- W2051728492 cites W1980223982 @default.
- W2051728492 cites W2004672321 @default.
- W2051728492 cites W2009922399 @default.
- W2051728492 cites W2012226596 @default.
- W2051728492 cites W2013661595 @default.
- W2051728492 cites W2017294500 @default.
- W2051728492 cites W2018591489 @default.
- W2051728492 cites W2030796816 @default.
- W2051728492 cites W2032018099 @default.
- W2051728492 cites W2038902784 @default.
- W2051728492 cites W2044953415 @default.
- W2051728492 cites W2049030276 @default.
- W2051728492 cites W2053599366 @default.
- W2051728492 cites W2059736513 @default.
- W2051728492 cites W2065160332 @default.
- W2051728492 cites W2071166276 @default.
- W2051728492 cites W2095088772 @default.
- W2051728492 cites W2112279373 @default.
- W2051728492 cites W2148177405 @default.
- W2051728492 cites W2485056642 @default.
- W2051728492 cites W2496227651 @default.
- W2051728492 cites W605959634 @default.
- W2051728492 doi "https://doi.org/10.1016/s0144-8617(03)00121-8" @default.
- W2051728492 hasPublicationYear "2003" @default.
- W2051728492 type Work @default.
- W2051728492 sameAs 2051728492 @default.
- W2051728492 citedByCount "50" @default.
- W2051728492 countsByYear W20517284922012 @default.
- W2051728492 countsByYear W20517284922013 @default.
- W2051728492 countsByYear W20517284922014 @default.
- W2051728492 countsByYear W20517284922015 @default.
- W2051728492 countsByYear W20517284922017 @default.
- W2051728492 countsByYear W20517284922018 @default.
- W2051728492 countsByYear W20517284922019 @default.
- W2051728492 countsByYear W20517284922020 @default.
- W2051728492 countsByYear W20517284922021 @default.
- W2051728492 countsByYear W20517284922023 @default.
- W2051728492 crossrefType "journal-article" @default.
- W2051728492 hasAuthorship W2051728492A5001045429 @default.
- W2051728492 hasConcept C127413603 @default.
- W2051728492 hasConcept C146088050 @default.
- W2051728492 hasConcept C147253931 @default.
- W2051728492 hasConcept C159985019 @default.
- W2051728492 hasConcept C171250308 @default.
- W2051728492 hasConcept C178790620 @default.
- W2051728492 hasConcept C184651966 @default.
- W2051728492 hasConcept C185592680 @default.
- W2051728492 hasConcept C192562407 @default.
- W2051728492 hasConcept C26771246 @default.
- W2051728492 hasConcept C2776804113 @default.
- W2051728492 hasConcept C42360764 @default.
- W2051728492 hasConcept C46275449 @default.
- W2051728492 hasConcept C529335014 @default.
- W2051728492 hasConcept C6556556 @default.
- W2051728492 hasConceptScore W2051728492C127413603 @default.
- W2051728492 hasConceptScore W2051728492C146088050 @default.
- W2051728492 hasConceptScore W2051728492C147253931 @default.
- W2051728492 hasConceptScore W2051728492C159985019 @default.
- W2051728492 hasConceptScore W2051728492C171250308 @default.
- W2051728492 hasConceptScore W2051728492C178790620 @default.
- W2051728492 hasConceptScore W2051728492C184651966 @default.
- W2051728492 hasConceptScore W2051728492C185592680 @default.
- W2051728492 hasConceptScore W2051728492C192562407 @default.
- W2051728492 hasConceptScore W2051728492C26771246 @default.
- W2051728492 hasConceptScore W2051728492C2776804113 @default.
- W2051728492 hasConceptScore W2051728492C42360764 @default.
- W2051728492 hasConceptScore W2051728492C46275449 @default.
- W2051728492 hasConceptScore W2051728492C529335014 @default.
- W2051728492 hasConceptScore W2051728492C6556556 @default.
- W2051728492 hasIssue "1" @default.
- W2051728492 hasLocation W20517284921 @default.
- W2051728492 hasOpenAccess W2051728492 @default.
- W2051728492 hasPrimaryLocation W20517284921 @default.
- W2051728492 hasRelatedWork W2348358097 @default.
- W2051728492 hasRelatedWork W2370946942 @default.
- W2051728492 hasRelatedWork W2383362248 @default.
- W2051728492 hasRelatedWork W2391243233 @default.
- W2051728492 hasRelatedWork W2810175335 @default.
- W2051728492 hasRelatedWork W2923029293 @default.
- W2051728492 hasRelatedWork W3006229920 @default.
- W2051728492 hasRelatedWork W3011473967 @default.
- W2051728492 hasRelatedWork W3041767846 @default.
- W2051728492 hasRelatedWork W4361000261 @default.
- W2051728492 hasVolume "54" @default.
- W2051728492 isParatext "false" @default.
- W2051728492 isRetracted "false" @default.
- W2051728492 magId "2051728492" @default.
- W2051728492 workType "article" @default.