Physicochemical properties and biological activities of Tremella hydrocolloids

Zhiguo Zhang; Zhaoshi Chen; Chen Zhang; Wenyi Kang

doi:10.1016/j.foodchem.2022.135164

Physicochemical properties and biological activities of Tremella hydrocolloids

Food Chem. 2023 May 1:407:135164. doi: 10.1016/j.foodchem.2022.135164. Epub 2022 Dec 6.

Authors

Zhiguo Zhang¹, Zhaoshi Chen², Chen Zhang³, Wenyi Kang⁴

Affiliations

¹ School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, China. Electronic address: zzg@qlu.edu.cn.
² School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, China.
³ School of Science, The Hong Kong University of Science and Technology, Hong Kong, China.
⁴ National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China. Electronic address: kangweny@hotmail.com.

PMID: 36508868
DOI: 10.1016/j.foodchem.2022.135164

Abstract

In this paper, the physicochemical properties, antioxidant and anti-aging abilities of three new Tremella hydrocolloids were studied. The physicochemical properties were characterized by Fourier transform infrared spectroscopy, differential scanning calorimeter, X-ray diffractometry etc. The antioxidant activities of Tremella hydrocolloids were determined by ABTS radical, DPPH radical scavenging activity. The anti-aging ability of Tremella hydrocolloids was also investigated by using the organism model of Caenorhabditis elegans (C. elegans). The results showed that the ES-THD displayed the highest radical scavenging capacity and the best anti-aging abilities. The ability of ES-THD to scavenge ABTS radicals reached 100 % at 2 mg/mL, the ability of ES-THD to scavenge DPPH radicals reached 45.55 %. Compared with the control group, the average lifespan was 29.17 % longer fed with ES-THD. These results provide the evidence basis for the use of Tremella hydrocolloids as food texture modifiers, antioxidants, and anti-aging agents in the food industries.

Keywords: Anti-aging; Caenorhabditis elegans; Characterization; Physicochemical properties; Tremella hydrocolloids.

MeSH terms

Animals
Antioxidants* / chemistry
Antioxidants* / pharmacology
Basidiomycota*
Benzothiazoles
Caenorhabditis elegans
Sulfonic Acids

Substances

Antioxidants
2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid
Benzothiazoles
Sulfonic Acids