scholarly journals Front Cover: Valorisation of Cashew Nut Shell Liquid Phenolics in the Synthesis of UV Absorbers (Eur. J. Org. Chem. 30/2019)

2019 ◽  
Vol 2019 (30) ◽  
pp. 4763-4763
Author(s):  
Kennedy J. Ngwira ◽  
Jonas Kühlborn ◽  
Quintino A. Mgani ◽  
Charles B. de Koning ◽  
Till Opatz
Keyword(s):  
Cashew Nut Shell Liquid ◽  
Front Cover ◽  
Cashew Nut ◽  
Uv Absorbers ◽  
Cashew Nut Shell

Valorisation of Cashew Nut Shell Liquid Phenolics in the Synthesis of UV Absorbers

2019 ◽  
Vol 2019 (30) ◽  
pp. 4778-4790 ◽  
Author(s):  
Kennedy J. Ngwira ◽  
Jonas Kühlborn ◽  
Quintino A. Mgani ◽  
Charles B. de Koning ◽  
Till Opatz
Keyword(s):  
Cashew Nut Shell Liquid ◽  
Cashew Nut ◽  
Uv Absorbers ◽  
Cashew Nut Shell

scholarly journals Novel ultraviolet absorbers derived from cashew nut shell liquid: spectrophotometric, in silico and in vitro assays

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 ◽  
...  
Keyword(s):  
In Silico ◽  
Waste Product ◽  
In Vitro Assays ◽  
Cashew Nut Shell Liquid ◽  
Yeast Saccharomyces Cerevisiae ◽  
Cashew Nut ◽  
Uv Absorbers ◽  
Pure Compounds ◽  
Cashew Nut Shell

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.

Particleboard from Cashew Nut Shell Liquid

2007 ◽  
Vol 15 (1) ◽  
pp. 75-82 ◽  
Author(s):  
Lubi C. Mary ◽  
Eby Thomas Thachil
Keyword(s):  
Cashew Nut Shell Liquid ◽  
Cashew Nut ◽  
Cashew Nut Shell

Rheological studies of SBS/EVA blends modified with bio-based cashew nut shell liquid

2021 ◽  
pp. 009524432199040
Author(s):  
Isabela Pinto Ferreira ◽  
Alex da Silva Sirqueira ◽  
Taiane Andre dos Santos ◽  
Monica Feijo Naccache ◽  
Bluma Guenther Soares
Keyword(s):  
Ethylene Vinyl Acetate ◽  
Rheological Parameters ◽  
Creep Recovery ◽  
Cashew Nut Shell Liquid ◽  
Cashew Nut ◽  
Curve Fit ◽  
Significant Difference ◽  
Cashew Nut Shell ◽  
S Model ◽  
Styrene Butadiene

Research on bio-plasticizers is a topic of strategic interest in polymer blends. A bio-plasticizer, cashew nut shell liquid (CNSL), was studied in blends of ethylene-vinyl acetate copolymer (EVA) and styrene-butadiene-styrene copolymer (SBS). In the literature does not report the addition of plasticizers to SBS/EVA blend. Statistical analyses showed that there was a significant difference in mechanical properties (tension at break, hardness and elongation at break) vs. the unplasticized blend. The minimum CNSL concentration required for a statistical difference was 10 phr. The Carreau-Yasuda rheological model was used to obtain rheological parameters in these blends. The plasticizing influence of CNSL was confirmed by rheology. The effects of CNSL on creep and recovery were evaluated for the SBS/EBA blends. Burger´s model explained well SBS/EVA creep compliance. Moreover, its parameters (Newtonian dashpots and Hookean springs) were evaluated as a function of the CNSL concentrations. The bio-plasticizer concentration influenced significant correlations among the rheological creep-recovery tests, thus enabling a considerable increase in the elastic phase. Experimental creep-recovery data and curve fit were in good agreement.

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