Obtaining non-digestible polysaccharides from distillers' grains of Chinese baijiu after extrusion with enhanced antioxidation capability

Yizhou Liu; Xiong Li; Hui Qin; Mengyang Huang; Shuangping Liu; Rui Chang; Beidou Xi; Jian Mao; Suyi Zhang

doi:10.1016/j.ijbiomac.2023.124799

Obtaining non-digestible polysaccharides from distillers' grains of Chinese baijiu after extrusion with enhanced antioxidation capability

Int J Biol Macromol. 2023 Jul 15:243:124799. doi: 10.1016/j.ijbiomac.2023.124799. Epub 2023 May 12.

Authors

Yizhou Liu¹, Xiong Li², Hui Qin³, Mengyang Huang³, Shuangping Liu⁴, Rui Chang⁴, Beidou Xi⁵, Jian Mao⁶, Suyi Zhang⁷

Affiliations

¹ School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
² Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
³ National Engineering Research Center of Solid-State Brewing, Luzhou 646000, China.
⁴ National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
⁵ School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: xibeidou@263.net.
⁶ Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China. Electronic address: maojian@jiangnan.edu.cn.
⁷ National Engineering Research Center of Solid-State Brewing, Luzhou 646000, China. Electronic address: zhangsy@lzlj.com.

PMID: 37182635
DOI: 10.1016/j.ijbiomac.2023.124799

Abstract

Distillers' grains of Chinese Baijiu (DGS) presents a significant challenge to the environmentally-friendly production of the brewing industry. This study utilized screw extrusion to modify the morphological and crystalline characteristics of DGS, resulting in a 316 % increase in the yield of non-digestible polysaccharides extraction. Physiochemical characteristics of extracted polysaccharides were variated, including infrared spectrum, monosaccharide composition, and molecular weight. Polysaccharides extracted from extruded DGS exhibited enhanced inhibitory capacity on α-amylase activity and starch hydrolyzation, as compared to those extracted from unextruded DGS. Additionally, the ABTS, DPPH, and OH radical scavenging efficiencies took a maximum increase of 1.20, 1.38, and 1.02-fold, correspondingly. Extrusion is a novel approach for the recycling non-digestible polysaccharides from DGS, augmenting the bioactivity of extracts and their potential application in functional food.

Keywords: Antioxidant activity; Distillers' grains of Chinese baijiu; Non-digestible polysaccharides; Screw extrusion; Starch hydrolyzation inhibition; α-Amylase activity inhibition.

MeSH terms

Ethanol* / chemistry
Monosaccharides
Polysaccharides / pharmacology
Starch*

Substances

Ethanol
Starch
Monosaccharides
Polysaccharides