Synthesis of bio-based surfactants from cashew nutshell liquid in water

2018 ◽  
Vol 20 (14) ◽  
pp. 3210-3213 ◽  
Author(s):  
Valentina Bragoni ◽  
Raja K. Rit ◽  
Robin Kirchmann ◽  
A. Stefania Trita ◽  
Lukas J. Gooßen

Bio-based surfactants have been synthesisedviaan environment-friendly, waste-minimised procedure starting from CNSL, an inedible waste product of the cashew nut industry.

2020 ◽  
Vol 19 (2) ◽  
pp. 170
Author(s):  
Wuye Ria Andayanie ◽  
Wahidin Nuriana ◽  
Netty Ermawati

Antiviral Activity of Cashew Nut Shell Extract Against Cowpea mild mottle virus on Soybean. Cowpea mild mottle virus (CPMMV) is one of important virus on soybean. Management of CPMMV is usually by controlling its vector using insecticide which has adverse effect on environmental and non target insect. Therefore, it is important to find an alternative control which is environment friendly such as utilizing of plant extract. Cashew nut shell (CNS) is a waste during processing of cashew nut and reported containing some antimicrobe substances.  The research was aimed to evaluated the potency of CNS extract as antiviral against CPMMV. The experiment was designed by Randomized Block Design with 4 replicates and each treatment unit consisted of 10 plants. The application method (prior and post virus inoculation, mixing of virus sap and CNS extract) and concentration of CNS extract (0.75 %; 1.5 %; 3.0 %; 6.0 %) were evaluated the effectiveness of their combination to inhibit CPMMV infection. The application of CNS extract were abled to decreased disease incidence and increase incubation period compared  to untreated with CNS extract. and severity of treated plants significantly. However, plants treated with concentration 3.0 %  and 6.0 % prior virus inoculation and mixing CNS extract with concentration 1.5 %, 3.0 %, and 6.0 % with CPMMV sap showed that the virus titre was negatively detected by ELISA using CPMMV antisera.  It is indicated that the potential of CNS extract as antiviral. All treatments combination able to suppress virus infection without phytotoxicity effect, except CNS 6.0 % treatment.


Author(s):  
Jayvee A. Cruz ◽  
Mea Katreena M. Cadiente

Carbonized rice hull (CRH) is an alternative to wood charcoal as a carrier component in making inoculants. Being a waste product in rice farming, the use of CRH is more practical and environment-friendly. This study determined the survival of an actinomycete in a CRH-based carrier. Its cell population was counted periodically up to 250 days of incubation using the spread plate method. The initial population of 2.2 x 104 cfu/g increased to 2.9 x 107 cfu/g (135, 160%) 5 days after inoculation (DAI). However, number of cells decreased to 1.5 x 107 cfu/g 170 DAI, gradually increasing to a final population of 1.8 x 107 cfu/g at 250 DAI; 8.17 x 107 percent of the initial population remained viable in the CRH-based carrier. The survival of the actinomycete demonstrates the potential of CRH as inoculant carrier. However, which carrier can sustain high populations of the actinomycete has yet to be determined. Keywords - Microbiology, actinomycete, survival, CRH-Based carrier, Nueva Ecija, Philippines


2020 ◽  
Vol 4 (2) ◽  
pp. 40-49
Author(s):  
Emeli Moura De Araújo ◽  
Luiz Antônio Soares Romeiro ◽  
Ana Paula Rodrigues ◽  
Priscilla Souza Alves ◽  
Viviane Cândida da Silva ◽  
...  

The cashew nut shell liquid (CNSL) constituents were isolated by our group leading to four mixtures and seventeen pure compounds, which had chromophoric groups similar to organic ultraviolet (UV) absorbers. In addition, C15 and C8 CNSL-derivatives molecules were rationally planned as UV absorbers. Mixtures and isolated CNSL compounds were demonstrated to be non-phototoxic when evaluated in a phototoxicity assay using the yeast Saccharomyces cerevisiae. Considering the absorption values on the UV range, 6 compounds showed appropriate SPF values regarding the spectrophotometric test. Additionally, in silico and in vitro evaluations were performed, showing non-oral bioavailability, as well as non-mutagenic, non-genotoxic and non-phototoxic properties for the tested compounds. These results contribute favorably to the aimed use of the compounds under analysis as novel organic UV absorbers that have as precursor the phenolic lipid component of CNSL, a waste product obtained as the by-product of cashew nut food processing.


2019 ◽  
Vol 21 (2) ◽  
pp. 111
Author(s):  
Shucai Zhang ◽  
Xiaohua Zhang ◽  
Ping Jia ◽  
Qian Wang ◽  
Xianghong Cao
Keyword(s):  

Author(s):  
Shaikh Md Mominul Alam ◽  
Shilpi Akter ◽  
Md Lutfor Rahman

The aim of this paper is to introduce novel dressing with Mikania Micrantha for quick blood clotting and wound healing. When epidermis of human skin is cut or scrapped, sometimes too much bleeding occurs. Excessive bleeding may cause death, if bleeding is not stopped immediately. To promote blood clotting & wound healing natural based bio materials are still insufficient in medical textile sector. To fill up this scarcity, woven fabric treated with Mikania micrantha leaf juice & leaf powder was examined. M. micrantha exhibits good blood clotting time in comparison with available dressing materials. Woven fabric (bandage) that contains M. micrantha can be used for cut wounds healing purpose. The experiments were carried out in environment friendly way which indicates the production & processing of these dressing materials can have enormous contribution to sustainable operations and products.


Author(s):  
Volker Gettwert ◽  
Volker Weiser ◽  
Claudio Tagliabue ◽  
Sven Hafner ◽  
Sebastian Fischer

2018 ◽  
Author(s):  
Chaofeng Huang ◽  
Jing Wen ◽  
Yanfei Shen ◽  
Fei He ◽  
Li Mi ◽  
...  

<a></a><a>As a metal-free conjugated polymer, carbon nitride (CN) has attracted tremendous attention as heterogeneous (photo)catalysts. </a><a></a><a>By following prototype of enzymes, making all catalytic sites of accessible via homogeneous reactions is a promising approach toward maximizing CN activity, but hindered due to </a><a></a><a>the poor insolubility of CN</a>. Herein, we report the dissolution of CN in environment-friendly methane sulfonic acid and the homogeneous photocatalysis driven by CN for the first time with the activity boosted up to 10-times, comparing to the heterogeneous counterparts. Moreover, facile recycling and reusability, the <a>hallmark</a> of heterogeneous catalysts, were kept for the homogeneous CN photocatalyst via reversible precipitation using poor solvents. It opens new vista of CN in homogeneous catalysis and offers a successful example of polymeric catalysts in bridging gaps of homo/heterogeneous catalysis.


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