Utilisation of Tectona grandis (teak) leaf extracts as natural hair dyes

2021 ◽  
Author(s):  
Natthawadee Tibkawin ◽  
Nungruthai Suphrom ◽  
Nitra Nuengchamnong ◽  
Nantaka Khorana ◽  
Pensri Charoensit
Author(s):  
Shagufta Rehman ◽  
Shariq A. Khan ◽  
Nida Sultana ◽  
Sarfaraz Ahmad

Dying of hairs is customary cosmetic proceeding in all communities since immemorial time. There might be various reasons for hair coloring but the practice is very much alive in the society irrespective of creed and gender. The persons who are aesthetically sensitive give color to their hairs as per their choice. There are various synthetic substances which are being used for dying hairs in requisite tones and shades but the Paraphenylene diamine (PPD) is the usual ingredient, utilized in preparation of these dyes. Studies revealed that use of these hair dyes related to allergic and respiratory disorders and even cancer. Whereas, the classical Unani medicine suggest considerable number of substances with promising results and safety. In this paper an attempt is made to highlight the health risks of the synthetic dying agents and presents various natural substances which are claimed to be safe and effective for toning and coloring of hairs according to Unani medicine.


2016 ◽  
Vol 74 (5) ◽  
pp. 302-304 ◽  
Author(s):  
Sara Thorén ◽  
Kerem Yazar

2014 ◽  
Vol 43 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Sazada Siddiqui

The leaf extracts from four medicinal plants viz., Azadirachta indica A. Juss., Tectona grandis L.f., Dalbergia sissoo Roxb. and Eucalyptus tereticornis J.E. Smith were evaluated using Pisum sativum (Linn.) reduced mitotic index in a dose-dependent manner. The percentage of increasing abnormal mitotic plates was also concentration and time dependent. Commonly observed abnormalities were c-mitosis, laggard, bridges, stickiness, precocious separation, vagrant and fragments. The results indicate that commonly used aqueous leaf extracts of above plants has significant mutagenic action on plant model P. sativum var. Arikil. DOI: http://dx.doi.org/10.3329/bjb.v43i1.19760 Bangladesh J. Bot. 43(1): 107-111, 2014 (June)


PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0243792
Author(s):  
Shaohua Xu ◽  
Hui Wang ◽  
Yeguo Liu ◽  
Chengfeng Zhang ◽  
Yang Xu ◽  
...  

Background The association between personal hair dye use and breast cancer risk is currently debated. The aim of this work is to investigate the association between the use of hair care products and breast cancer risk in women. Methods Based on the PRISMA-IPD statement, the PubMed, Embase, Cochrane Library, Web of Science, OVID and Scopus databases were used to identify eligible studies published from inception to 22 April 2020. A pooled odds ratio (OR) with a 95% confidential interval (CI) was calculated to assess this correlation via fixed- or random-effect Mantel-Haenszel models using a heterogeneity Chi2 test with a significance level of p<0.1. All statistical tests were performed using StataSE software (version 12.0). Results The analyzed data comprised 14 eligible studies with 210319 unique subjects. The pooled results suggested that there was a significant association between the use of hair dyes and breast cancer occurrence (pooled OR = 1.07; 95% CI, 1.01–1.13). Regarding the individual analysis regarding the different types of hair chemicals, permanent hair dye users (pooled OR = 1.08; 95% CI, 1.03–1.14) and rinse users (pooled OR = 1.17; 95% CI, 1.02–1.35) were both found to have a significantly elevated breast cancer risk compared to natural hair subjects, whereas there was an insignificant relationship between the use of semipermanent hair dyes (pooled OR = 1.09; 95% CI, 0.92–1.28) and straighteners (pooled OR = 1.04; 95% CI, 0.96–1.14) and breast cancer risk. No impact on the overall correlation between hair dyes and breast cancer risk due to race (White vs non-White) (pooled OR = 1.05; 95% CI, 0.86–1.29), timing of use (<10 years vs ≥10 years) (pooled OR = 0.96; 95% CI, 0.85–1.08) or dye color (Darker than natural hair vs Lighter than natural hair) (pooled OR = 0.91; 95% CI, 0.62–1.32) was found. Conclusions Chemicals in hair dyes may play a role in breast carcinogenesis and increase breast cancer risk.


Author(s):  
Greeshma Murukan ◽  
Murugan K

Objective: The present study aims in comparison of phenolic acids and its antioxidant potentialities of young and mature leaf extract of Tectona grandis L f.Methods: Various phenolic acids present in methanolic leaf extract of young and mature leaves of T. grandis were analyzed by reversed-phase high-performance liquid chromatography analysis. The antioxidant potentiality of the extracts was determined by various analytical methods such as 2,2-diphenyl-1-picrylhydrazyl, ferric reducing/antioxidant power, and metal chelating activity.Results: Methanolic leaf extracts of young and mature leaf of T. grandis showed a pool of phenolic compounds such as gallic, vanillic, p-hydroxybenzoic, ferulic, chlorogenic, sinapic, p-coumarate, and cinnamic acids. Irrespective of the methods used for analyzing antioxidant capacity, young leaf extract showed potent antioxidant potentiality when compared with the mature leaf extract.Conclusion: The methanolic extract of teak leaves is rich source of many phenolic compounds, and these compounds attribute to the antioxidant capacity of the leaves. Meanwhile, by comparing the young and mature leaves, the young leaves showed much more potential than the other. It is, therefore, concluded that the young teak leaves can be used as a good source of natural antioxidant.


2021 ◽  
Vol 39 (1) ◽  
pp. 37-44
Author(s):  
M Benabbes ◽  
M A Chentoufi ◽  
B Mojemmi ◽  
H Benzeid ◽  
H A Toure ◽  
...  

Author(s):  
Greeshma Murukan ◽  
Murugan K

Objective: The present study aims in comparison of phenolic acids and its antioxidant potentialities of young and mature leaf extract of Tectona grandis L f.Methods: Various phenolic acids present in methanolic leaf extract of young and mature leaves of T. grandis were analyzed by reversed-phase high-performance liquid chromatography analysis. The antioxidant potentiality of the extracts was determined by various analytical methods such as 2,2-diphenyl-1-picrylhydrazyl, ferric reducing/antioxidant power, and metal chelating activity.Results: Methanolic leaf extracts of young and mature leaf of T. grandis showed a pool of phenolic compounds such as gallic, vanillic, p-hydroxybenzoic, ferulic, chlorogenic, sinapic, p-coumarate, and cinnamic acids. Irrespective of the methods used for analyzing antioxidant capacity, young leaf extract showed potent antioxidant potentiality when compared with the mature leaf extract.Conclusion: The methanolic extract of teak leaves is rich source of many phenolic compounds, and these compounds attribute to the antioxidant capacity of the leaves. Meanwhile, by comparing the young and mature leaves, the young leaves showed much more potential than the other. It is, therefore, concluded that the young teak leaves can be used as a good source of natural antioxidant.


Author(s):  
A. Hamil ◽  
Muniswari M

Hair dye use is very common among both Men & Women. Hair dye users are increasing day by day coloring of hair is performed not only by professionals but also a popular cosmetic product. Hair dye is used mostly to change gray hair, since gray hair is a sign of an advanced age. Most of them are using hair dye in our home. Earlier natural hair dyes were used but now due to advancement in cosmetic industry, different types have been developed. There has been concern about hair dye since scientist is trying to find out if there is a link between hair color and cancer.


2018 ◽  
Vol 10 (6) ◽  
pp. 107 ◽  
Author(s):  
P. Annamalai ◽  
P. Balashanmugam ◽  
P. T. Kalaichelvan

Objective: The present study was aimed to screen silver nanoparticles (AgNPs) using different plant extracts and also to study their antimicrobial property against different human pathogens.Methods: Nine different plants, namely Parthenium hispidum, Vinga rose, Catheranthus roseus, Phyllanthus amarus, Azadirachta indica, Jatropa curcas, Tectona grandis, Ocimum sanctum, and Peltophorum pterocarpum were screened for the synthesis of AgNPs. The AgNPs were synthesized using leaf extracts and was well characterized using a UV-Visible spectrophotometer, transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and zeta potential measurement. The AgNPs was tested for their antibacterial and antifungal efficacy using agar well diffusion method.Results: Among the nine different plant extracts screened, AgNPs synthesized using Peltophorum pterocarpum leaf extract showed good stability even after one month with maximum absorption spectra of 425 nm. The synthesized AgNPs was found to be spherical in shape with an average size ranging from 20 to 60 nm. The EDX spectrum reveals the presence of silver peaks and the XRD spectrum confirms the crystalline nature of AgNPs. A Maximum zone of inhibition of 18.04±0.74 was found when the synthesized AgNPs was tested against B. subtilis, and 12.34±0.31 against A. niger when the concentration was AgNPs was maintained at 100 µg/ml.Conclusion: The results of the present study conclude that the AgNPs synthesized using Peltophorum pterocarpum leaf extracts is found to be stable and possesses broad-spectrum antibacterial activity against different tested pathogens.


Sign in / Sign up

Export Citation Format

Share Document