7 research outputs found
PRELIMINARY PHYTOCHEMICAL ANALYSIS AND IN VITRO ANTIOXIDANT ACTIVITY OF ARAUCARIA COLUMNARIS BARK PEEL AND COSMOS SULPHUREUS FLOWERS
Objective: Four different extracts of Araucaria columnaris (bark peel) and Cosmos sulphureus (flowers) were screened for their phytochemical composition, and free radical scavenging activities.Methods: DPPH method was used to test the antioxidant activity for extracts.Results: Among the different extracts tested, the methanol extract of both the plant species showed significant radical scavenging activities. Phytochemical analysis of the extracts revealed that the radical scavenging activities might be due to the presence of flavonoids, tannins and phenolic compounds.Conclusion: The results obtained suggest that Araucaria columnaris (bark peel) and Cosmos sulphureus(flowers) could be exploited in the treatment of various diseases like cancer, cardiovascular diseases and infection diseases. Â
Dyeing of silk using Madhuca longifolia as natural dye source
The dried leaves of Madhuca longifolia has been evaluated for their potential as a source for natural dyeing of silk. Dye has been extracted under optimum conditions such as extraction pH (10), time (60 min) and temperature (95̊°C). The extracted dye has been applied on the silk fabrics and a range of shades are obtained using different methods with or without using mordants. It is found that mordants have a significant effect on the color of dyed silk fabrics. The dyed samples have been evaluated for color measurements and standard wash, light and rub fastness tests. The extracted dye is also tested for some of the eco-parameters using atomic absorption spectrophotometry and GC/MS. The test results are compared with set standards to determine the eco-friendliness of natural dye. Their concentrations are found to be lower than the stipulated limits. The dyed samples are also tested for antimicrobial activity against Gram-positive and Gram-negative bacteria. The dyed silk fabrics show acceptable fastness properties and are found to possess antibacterial activity. The results show that Madhuca longifolia leaves are promising as a natural colorant, which would, in turn, pave the way for the discovery of a new range of environment-friendly dyes for textile materials
Kinetic and adsorption studies of Indian siris (<i style="">Albizia lebbeck</i>) natural dye on silk
159-163Spectral techniques have been used to
identify and characterize the color constituent of the bark of Albizia lebbeck.
The dyeing potential and color fastness properties of the extract have been
evaluated on silk yarn. Pre-mordanting of the dye is found to be better than
post-mordanting, particularly with alum which gives higher color strength
values. The color
co-ordinates of dyed samples lie in the yellow-red quadrant of color space
diagram. The kinetic and adsorption studies on the dye uptake by silk yarn have
also been carried out. The positive standard affinity indicates a spontaneous
adsorption. During the dyeing process the enthalpy change is positive, indicating
an endothermic process with large negative entropy change. This implies an
uniform ordered distribution of dye on silk. The adsorption of the dye fits
into the Langmuir model of isotherm having high regression coefficient. These
findings indicate that the color extract of the bark of Albizia lebbeck serves as a potential natural dye for silk fabrics
<span style="font-size:11.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-GB">Dyeing of silk using <i style="mso-bidi-font-style:normal">Madhuca longifolia</i> as natural dye source</span>
419-424The dried leaves of <i style="mso-bidi-font-style:
normal">Madhuca longifolia has been evaluated for their potential as a
source for natural dyeing of silk. Dye has been extracted under optimum
conditions such as extraction pH (10), time (60 min) and temperature (95̊°C). The extracted
dye has been applied on the silk fabrics and a range of
shades are obtained using different methods with or without using mordants. It
is found that mordants have a significant effect on the color of dyed silk
fabrics. The dyed samples have been evaluated for color measurements and
standard wash, light and rub fastness tests. The extracted dye is also tested
for some of the eco-parameters using atomic absorption spectrophotometry and
GC/MS. The test results are compared with set standards to determine the
eco-friendliness of natural dye. Their concentrations are found to be lower
than the stipulated limits. The dyed samples are also tested for antimicrobial
activity against Gram-positive and Gram-negative bacteria. The dyed silk
fabrics show acceptable fastness properties and are found to possess
antibacterial activity. The results show that <i style="mso-bidi-font-style:
normal">Madhuca longifolia leaves are promising as a natural colorant,
which would, in turn, pave the way for the discovery of a new range of
environment-friendly dyes for textile materials.
</span
<span style="font-size:11.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" mangal;mso-ansi-language:en-gb;mso-fareast-language:en-us;mso-bidi-language:="" hi"="" lang="EN-GB">Extraction and dyeing conditions of natural dye from flowers of <i style="mso-bidi-font-style:normal">P<span style="mso-bidi-font-style:italic">lumeria rubra</span></i> L. on textiles and fastness properties</span>
278-284Eco-friendly dye was extracted from the
flowers of Plumeria rubra. This dye
was applied on cotton and silk fabrics with 2%, 5% and 10% o.w.f. dye
concentrations in the presence and absence of alum, tannic acid and tartaric
acid mordants using the exhaustion method. The color strength, CIE lab values
and fastness properties of the dyed samples were assessed.
The mordants were found to influence the colour strength and fastness
properties of dyed cotton and silk fabrics.
Dyed samples were tested for antimicrobial activity and found to possess
antibacterial activity. The flowers of
Plumeria rubra offer a potential
source of natural dye for cottage dyeing industry
Averting catastrophic tuberculosis costs in an Indian state: integration of Ayushman Bharat Arogya Karnataka with National Tuberculosis Elimination Program
Summary: The WHO's “End TB” initiative aims to reduce catastrophic expenses, incidence, and mortality by 90%, 80%, and 0%, respectively by 2030 and Government of India has committed to reaching these goals by 2025. Despite tremendous progress, tuberculosis (TB) remains one of the main public health issues. To limit TB transmission and expedite reduction in incidence, further measures are needed. These milestones and objectives remain aspirational until we achieve “Universal access” to high-quality TB diagnosis and treatment. The goals of the study include outlining the process of ‘Ayushman Bharat-Pradhan Mantri Jan Arogya Yojana-Arogya Karnataka’ (AB-PMJAY-ArK) integration with the National TB Elimination Program (NTEP) in Karnataka, the types of TB patients who used AB-PMJAY-ArK services, and calculating the cost per TB patient at primary, secondary, and tertiary healthcare facilities, both public and private, stratified by type of service. Increased coverage, elimination of treatment delays, early and free treatment, and prevention of missing patients are benefits of integrating NTEP with Ayushman Bharat-PMJAY