Počet záznamů: 1
Hydrolysis of wheat B-starch and characterisation of acetylated maltodextrin
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SYSNO ASEP 0393110 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrolysis of wheat B-starch and characterisation of acetylated maltodextrin Tvůrce(i) Smrčková, P. (CZ)
Horský, Jiří (UMCH-V) RID, ORCID
Šárka, E. (CZ)
Koláček, J. (CZ)
Netopilík, Miloš (UMCH-V) RID
Walterová, Zuzana (UMCH-V)
Kruliš, Zdeněk (UMCH-V) RID, ORCID
Synytsya, A. (CZ)
Hrušková, K. (CZ)Zdroj.dok. Carbohydrate Polymers. - : Elsevier - ISSN 0144-8617
Roč. 98, č. 1 (2013), s. 43-49Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova wheat B-starch ; α-amylase ; acetylated maltodextrin Vědní obor RIV JI - Kompozitní materiály CEP GA525/09/0607 GA ČR - Grantová agentura ČR CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000325835600006 DOI 10.1016/j.carbpol.2013.04.065 Anotace Wheat B-starch was hydrolysed by α-amylase “Liquozyme supra” from Bacillus licheniformis at 90˚C and pH 7. After 2 h, the dextrose equivalent was 18; according to size exclusion chromatography, however, the hydrolysate contained not only dominant malto-oligosaccharides with the degree of polymerisation (DP) < 10 but also more than 20% of components with DP higher than 40. The product was acetylated to a high degree as verified by FTIR and1H NMR (degree of substitution DS = 3.1); nevertheless, detailed analysis of the MALDI-TOF mass spectra of the product showed that most of the malto-oligosaccharides molecules contained one or two residual hydroxyls. Size exclusion chromatography confirmed that the acetylated maltodextrin still contained a significant part with DP > 40. This non-uniformity of acetylated maltodextrin, both with respect to DP and to DS, must be taken into account in the development of acetylated-maltodextrin applications such as use as plasticisers or compatibilisers in biodegradable composites. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2014
Počet záznamů: 1