Impact of different processing techniques on reduction in oil content in deep-fried donuts when using kombucha cellulose hydrolysates

Shan He, Yang Zhang, Caiqing Gu, Yixiao Wu, Muhammad Adil Farooq, David James Young, Jonathan Woon Chung Wong, Kun Chang, Bin Tian, Ankita Kumari, Abdul Rahaman, Jingrong Gao*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

4 Citations (Scopus)

Abstract

To evaluate the efficiency of the oil-reducing properties of kombucha cellulose, enzymolysis and microwave-assisted enzymolysis methods were developed. The water-holding capacity of the kombucha cellulose hydrolysates formed by these two methods was higher than for the intact kombucha cellulose, while the oil-holding capacity was lower. The hydrolysates of kombucha cellulose and the intact kombucha cellulose were used to make deep-fried donuts. During this process, kombucha cellulose hydrolysates were added instead of 2% flour, and from the results, the oil content of the donut decreased significantly from ~28 to 15%, and the reduction was not related to the processing of the donut. The hardness and brittleness of all samples showed no significant change, and these samples had similar internal micro-structures, confirming texture profile analysis. In vitro digestion results suggested that there would be no adverse health effects from substituting kombucha cellulose hydrolysates in the deep-fried donut formula.

Original languageEnglish
Article number997097
Number of pages11
JournalFrontiers in Sustainable Food Systems
Volume6
DOIs
Publication statusPublished - 7 Oct 2022

Scopus Subject Areas

  • Global and Planetary Change
  • Food Science
  • Ecology
  • Agronomy and Crop Science
  • Management, Monitoring, Policy and Law
  • Horticulture

User-Defined Keywords

  • deep-fried donut
  • in vitro digestion
  • kombucha cellulose hydrolysates
  • oil content reduction
  • texture profile

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