Reusing wasteroot of Rubia wallichiana dyeing from Monpa of Tibet in China

Scientific Reports

John Richard Stepp¹  Yongjie Guo²  Yu Zhang³  Xiuxiang Yan³  Sailesh Ranjitkar⁴  Chuanfa Wang⁵  Rong Yang⁶  Lixin Yang⁷  Mingxiang Li⁸ 

[1] Ethnobiology Lab, Department of Anthropology, University of Florida, 32611-7305, Gainesville, FL, USA;Germplasm Bank of Wild Species of China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;University of Chinese Academy of Sciences, 100049, Beijing, China;Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;N.Gene Solution of Natural Innovation, 44614, Kathmandu, Nepal;Mid-Western University, Faculty of Humanities and Social Science, 44700, Lalitpur, Nepal;Lumbini Buddhist University, Faculty of Agroforestry, Lumbani, Nepal;Southwest Forestry University, 650224, Kunming, Yunnan, China;Southwest Forestry University, 650224, Kunming, Yunnan, China;Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;Southwest Forestry University, 650224, Kunming, Yunnan, China;Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;Center for Biodiversity and Indigenous Knowledge, 650034, Kunming, Yunnan, China;State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, Yunnan, China;University of Chinese Academy of Sciences, 100049, Beijing, China;

DOI  :  10.1038/s41598-021-93848-8

来源: Springer

【 摘 要 】

Humans have dyed textiles and leather, colored food, and paint body parts using natural dyes throughout history. Natural dyes have suffered drastically due to recent socioeconomic changes and replacement with synthetic dye in the textile industry. Hence, it is urgent to study indigenous dye plants and dyeing craft in local communities to protect these resources' potential ecological, economic, and cultural values. In 11 Monpa villages of Mêdog County, South-east Tibet, China, we conducted field research to record the indigenous method of cloth dyeing using madder dye. An aqueous extract of the root of Rubia wallichiana is a traditional madder dye. In this study, we used traditional dye and ethyl alcohol extract of the residue of aqueous extract. Two fabrics were dyed with the extractions in the presence of one of the metallic mordants or biomordants. Pigment compounds from aqueous extraction of madder and ethyl alcohol extraction of recycled madder were evaluated using Phytochemical, UV–visible spectroscopy, and FTIR test. We carried out One-way ANOVA and Duncan's new multiple range method to analyze different dying approaches and conditions. The dyed fabrics were evaluated by indicators of color strength and fastness, including washing, rubbing, and perspiration. The findings revealed the potentiality of biomordants to improve the dyeing properties of madder. The dyeing properties of recycled madder were marginally better than traditional madder. The results revealed the feasibility of enhancing the dyeing property and reuse of the residue from madder dyeing. The improved dyeing and reuse of residue can improve local ecological, economic benefits, and cultural heritage while applying research findings for the subsequent commercialization of plant dyes.

【 授权许可】

CC BY