Ameliorative effect of black tea extract on the skin of D-galactose-induced aging mice

Xiaojie Zheng; Wenbin Deng; Xinzhou Wang; Zufang Wu; Chong Li; Xin Zhang

doi:10.3389/fnut.2023.1275199

Ameliorative effect of black tea extract on the skin of D-galactose-induced aging mice

Front Nutr. 2023 Sep 15:10:1275199. doi: 10.3389/fnut.2023.1275199. eCollection 2023.

Authors

Xiaojie Zheng¹, Wenbin Deng², Xinzhou Wang³, Zufang Wu³, Chong Li⁴, Xin Zhang³

Affiliations

¹ Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Vocational College of Science and Technology (Wenzhou Academy of Agricultural Sciences), Wenzhou, Zhejiang, China.
² Zhejiang Tiefengtang Health Technology Co., Ltd., Wenzhou, China.
³ Department of Food Science and Engineering, Ningbo University, Ningbo, China.
⁴ Graduate School, Xuzhou Medical University, Xuzhou, China.

Abstract

Aging is a universal and irreversible process, and the skin is an important feature that reflects the aging of the organism. Skin aging has been a focus of attention in recent years because it leads to changes in an individual's external features and the loss of many important biological functions. This experiment investigated the improvement effect of black tea extract (BTE) on the skin of aging mice under D-galactose induction. After 6 weeks of administration, the changes in skin bio-chemical indices and tissue structure were compared with the blank and positive control groups. It was observed that BTE increased water and hyaluronic acid (HA) content, decreased malondialdehyde (MDA) content, enhanced superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) activities in the skin of aging mice, and improved the structure of aging damaged skin tissues and increased the content of total collagen. The experimental results showed that BTE can play a significant anti-aging effect on the skin, which can be used as a functional food for aging inhibition.

Keywords: anti-aging; biochemical index; black tea extract; skin aging; tissue structure.

Grants and funding

The author(s) declare that no financial support was received for the research, authorship, and/or publication of this article. This work was sponsored by Zhejiang Provincial Department of Agriculture and Rural Affairs Municipal Agricultural Sciences Alliance Regional Demonstration Project (2022SJLM06), and Zhejiang Dendrobium officinale Team Special Representative Project.