Sustainable Extraction of Colourant from Harmal Seeds ( Peganum harmala ) for Dyeing of Bio-Mordanted Wool Fabric

Shahid Adeel (), Fozia Anjum, Muhammad Zuber, Muhammad Hussaan, Nimra Amin and Meral Ozomay
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Shahid Adeel: Department of Chemistry, Govt. College University, Faisalabad 38000, Pakistan
Fozia Anjum: Department of Chemistry, Govt. College University, Faisalabad 38000, Pakistan
Muhammad Zuber: Department of Chemistry, Riphah International University Faisalabad Campus, Faisalabad 38000, Pakistan
Muhammad Hussaan: Department of Botany, Govt. College University, Faisalabad 38000, Pakistan
Nimra Amin: Department of Applied Chemistry, Govt. College University, Faisalabad 38000, Pakistan
Meral Ozomay: Department of Textile Engineering, Marmara University, Istanbul 34722, Turkey

Sustainability, 2022, vol. 14, issue 19, 1-11

Abstract: The recent pandemic scenario has caused demand for green products that have medicinal aspects, as well as greener approaches for global health. Natural dye from plants, particularly from harmal seeds, is an excellent alternative to carcinogenic yellow synthetic dyes. The current study has been conducted to isolate natural colorants from harmal seeds in methanolic medium through Gamma-Assisted Extraction (GAE). The dyeing variables that are necessary for shade development before and after mordanting were selected. It has been found that 6 kGy is the optimal absorbed dose for extraction of colorant from 6 g of powder to isolate the colorant in the methanolic medium through the Gamma-irradiated extraction mode (GAE). To get excellent results, 30 mL of methanolic extract containing 6 g/100 mL of Glauber salt was sued for dyeing of irradiated wool at 45 °C for 65 min. For improving the color strength and acceptable rating of fastness, 9% of henna, 3% of acacia, 10% of turmeric, and 7% of pomegranate extracts as pre-bio-mordants as well as 7% of acacia, 3% of pomegranate, 9% of henna, and 10% of turmeric extracts as post-mordants have given high results compared to when chemical mordants have been used. It was concluded that Gamma-ray treatment has excellent color strength in the dyeing of bio-mordanted wool using harmal seed extracts under mild conditions, and has good fastness ratings after using chemical and bio-mordanting methods as well.

Keywords: bio-mordants; chemical mordants; harmal seeds; sustainability; wool fabric (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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