Physicochemical properties and in vitro digestibility of starch from naturally air-dried chestnut

Copyright © 2018 Elsevier B.V. All rights reserved..

Naturally air-dried chestnut is a type of traditionally processed chestnut in North China which has a pleasant flavor. After air drying at room temperature and low-air humidity for two wk, the moisture, total starch content and starch relative crystallinity decreased, while the content of water-soluble sugar and amylose increased because of the dehydration and the hydrolysis of endogenous amylase. The Fourier transform infrared (FTIR) spectroscopy ratio of 1047/1022 cm-1 and the relative area of the Raman spectrum peak at 480/865 cm-1 of air-dried chestnut starch decreased in the first two wk and then increased, while the full width at half-maximum height (FWHH) of the Raman spectrum peak at 480 cm-1 showed the opposite tendency. Crystallinity had a positive correlation with the springiness and chewiness, and was negatively correlated with the estimated glycemic index (eGI). The eGI of air-dried starch was lower than those of roasted or boiled starch, which indicated that naturally air-dried chestnut with low digestibility is a good alternative to thermally processed chestnut.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:117

Enthalten in:

International journal of biological macromolecules - 117(2018) vom: 01. Okt., Seite 1074-1080

Sprache:

Englisch

Beteiligte Personen:

Zhao, Jinkai [VerfasserIn]
Zhang, Yuyang [VerfasserIn]
Wu, Yanwen [VerfasserIn]
Liu, Lingling [VerfasserIn]
Ouyang, Jie [VerfasserIn]

Links:

Volltext

Themen:

9005-25-8
9005-82-7
Amylose
Chestnut starch
Crystallinity
Glycemic index
Journal Article
Starch

Anmerkungen:

Date Completed 14.11.2018

Date Revised 14.11.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2018.06.034

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM285347292