Showing papers on "Sterculia foetida published in 2018"

A Novel Natural Source Sterculia foetida Fruit Shell Waste as Colorant and Ultraviolet Protection for Linen

Abstract: There has been a growing interest in natural dyes and consciousness about ill effects of ultraviolet rays on the human skin. This paper discusses dye extraction from the fruit shell waste of Sterculia foetida and its application on linen fabric for dyeing as well as ultraviolet protection (UPF) property. Optimal results were achieved for dyeing at 90°C for 60 min at 30% concentration of the dye on the weight of fabric using pre- and post-mordant dyeing techniques. Dyeing on linen fabric with and without mordant showed very good results in terms of different hues of color and UPF. Treated fabrics showed substantial increase in color depth and good to very good wash, light and rubbing fastness properties for both with and without mordant-dyed linen fabrics. The results confirmed that natural dye from Sterculia foetida fruit shell extract has potential applications for linen dyeing and producing a good to very good UPF.

Application of Sterculia Foetida Fruit Shell Waste Biomolecules on Silk for Aesthetic and Wellness Properties

Abstract: There has been growing interest in the use of bioresource waste for natural dyeing and finishing. This paper discusses dye extraction from the novel source fruit shell waste of Sterculia foetida and its application on mulberry silk fabric to confer aesthetic coloration and wellness properties such as ultra-violet (UV) protection and antibacterial properties. Treated fabrics showed a substantial increase in color depth and adequate wash, light, and rubbing fastness properties for dyed silk fabrics with and without mordanting. Pre-and post-mordanting of silk fabrics were carried out using mordants such as alum, harda (myrobalan), and copper sulfate. UV-visible spectrophotometric analysis of fruit shell extract (FSE) at different pHs and FSE with three different mordants at neutral pH was used to understand the phenomena of dye-fiber interaction. The treated fabrics characterised by ATR-FTIR, SEM-EDS, and XRD analysis indicate the nature of dye fiber interaction justifying the multifunctional properties. The treated fabric also showed very good ultraviolet protection property and antibacterial properties both against S. aureus and E. coli bacteria even after ten washes. The results indicate that Sterculia foetida fruit shell extract offers an excellent potential as coloration, antibacterial, and ultraviolet protective agent for mulberry silk fabric.

Stability And Ocular In-Vivo Pharmacodynamic Study Of Ion Activated Brimonidine Tartarate In-Situ Gel

Abstract: Objective: The goal of this study was to evaluated anti-glaucoma activity of ion-activated in-situ gel of Brimonidine Tartarate (BT) and to predict the shelf of the developed formulation. Method: sol-gel formulation was prepared by using gellan gum as an ion-activated gel-forming polymer, sterculia foetida gum and kappa carragennan as mucoadhesive agent and hydroxy propyl methyl cellulose (HPMC E50LV) as release retardant polymer. Phenyl ethyl alcohol as preservatives in borate buffer. Glaucoma was induced by marginal ear vein using 5% dextrose solution. Schiotz tonometer was use to measure the induced glaucoma. Long terms and accelerated stability studies were carried out. The formulation was characteristics for pH, clarity, sterility, in-vitro gelation studies and drug content by RP-HPLC method. Result : The mean normotensive IOP was in the range of 17.5±0.08 to 19.1±0.40 mm Hg in both the eyes. Glaucoma was induced in the both eye with 5% dextrose solution and the mean IOP in both eyes was in the range of 26.2±0.21 to 29.9±0.25 mm Hg. Student paired T-test ( F2) vs. Distilled water) was analysed and it was found that there is a highly significant difference between the means. This indicates the test drug is effective in the form of in-situ gels. The repeated measures one –way ANOVA with Tukey's multiple comparison test indicate the data is not significant, i.e p value is greater than p Conclusion: 5 % dextrose infusion through marginal ear vein is better in inducing IOP. Schiotz tonometer remains the preferred screening instrument. Brimonidine tartarate has a dual mechanism of action by reducing aqueous humor production and increasing uveoscleral outflow. So a synergistic effect can be obtained with help of in-situ gels in order to control elevated intra-ocular pressure in glaucoma. The above study highlights that formulation with sterculia foetida is better compared to kappa carragennan in controlling induced IOP. Key words: Sterculia Foetida gum, marginal ear vein, Schiotz tonometer, Brimonidine Tartarate.

OIL CONTENT, KINSHIP RELATIONSHIPS AND BIODIESEL POTENCY OF Sterculia foetida L. IN BADUNG REGENCY, DENPASAR AND ROTE (NTT)

Abstract: Kepuh (Sterculia foetida L.) is non-food plant produces seed oil that can be used as a biodiesel feedstock. This study aims to determine the characteristics of seeds, oil content, kinship relationship and quality of biodiesel from Sterculia foetidas seed in Badung, Denpasar and Rote. The research was conducted on December 2016 May 2017. The method used was observation of seed characteristics, analyzing oil content and biodiesel quality from oil Sterculia foetida’s. The highest oil content was obtained from Badung regency and Denpasar that was Monang-Maning 1 = 41.13%, while the lowest of Rote in Oemasi was 14.80%. The kinship relationship between seed characteristics and oil content formed 2 groups with a similarity index of 93.5%. The quality of biodiesel in Badung and Denpasar with acid number of 0.34 mg-KOH/ g and Rote that was 0.44 mg-KOH/g, iodine number in Badung and Denpasar were 44.41 and Rote was 48.53. Saponification number in Badung and Denpasar were 187.93 and Rote was 194.94, cetane number in Badung and Denpasar were 64.02 and Rote was 61,92. JURNAL METAMORFOSA V(1): 71-77 (2017) ISSN: 2302-5697 72 Water content in Badung, Denpasar and Rote was 0,2 respectively, and viscosity in Badung and Denpasar were 12.23 cSt and Rote was 9.22 cSt. The quality of biodiesel obtained mostly fulfilled the provisions of SNI 2015, except viscosity.