Synthesis and Characterization of Active Biocarbon Material for Use in Cosmetics and Personal Care Products

Consumer’s preference towards organic material enriched nature based green products in the cosmetics and personal care industry have intensified over the years. This paper shares the synthesis and characterization of an active organic biocarbon material derived from carbonized powdered coconut shell by bicarbonate cured activation for use in charcoal-based cosmetic and personal care products. The optimum conditions for activation was observed at 800 °C, run for 180 min, with a bicarbonate impregnation ratio of 1:3. Experimental design followed Box-Behnken approach. The increase in iodine (757.30 mg/g) and methylene blue number (111.00 mg/g) are indicative of a highly porous biocarbon material that reflects its excellent adsorption capability. Suitability of the biocarbon material for application in charcoal-based cosmetic formulation mixture was supported through proximate, texture, and color analysis. Overall material characteristics are beneficial for effective adsorbent and exfoliant functions in cleansing, detoxifying, and scrubbing.

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Synthesis and characterization of a sulfonic species-based mesoporous sorbent for the pre-concentration of nine personal care products in wastewater and swimming pool water

Microchemical Journal ◽

10.1016/j.microc.2019.104515 ◽

2020 ◽

Vol 153 ◽

pp. 104515

Author(s):

M. Mokhtari ◽

H. Hamaizi ◽

M.D. Gil García ◽

M. Martínez Galera

Keyword(s):

Personal Care Products ◽

Swimming Pool ◽

Synthesis And Characterization ◽

Personal Care ◽

Pool Water ◽

Swimming Pool Water

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Synthesis and Characterization of Sugarcane Bagasse Based Activated Carbon: Effect of Impregnation Ratio of ZnCl2

Journal of Nepal Chemical Society ◽

10.3126/jncs.v41i1.30490 ◽

2020 ◽

Vol 41 (1) ◽

pp. 74-79

Author(s):

Sahira Joshi ◽

Bishnu K.C.

Keyword(s):

Iodine Number ◽

Surface Area ◽

Sugarcane Bagasse ◽

Amorphous Materials ◽

Activated Carbons ◽

X Ray Diffraction ◽

Impregnation Ratio ◽

Methylene Blue Number ◽

Xrd Patterns

Series of activated carbons (ACs) have been prepared from Sugarcane bagasse powder by ZnCl2 activation at various impregnation ratios of ZnCl2 to Sugarcane bagasse powder of 0.25:1, 0.5:1, 1:1 and 2:1 by weight. Characteristics of the activated carbons (ACs) were determined by iodine number, methylene blue number, surface area, scanning electron microscopy (SEM) and x-ray diffraction. Iodine number (IN) indicated that, microporosity of the AC were increased with increasing impregnation ratio ZnCl2 to Sugarcane bagasse upto 1:1 then started to decrease. However, mesoporosity as well as surface area was increased progressively. The maximum value of iodine number (868 mg/g) was achieved in the AC prepared at impregnation ratio of ZnCl2 to sugarcane bagasse 1:1. SEM micrographs also show the presence of well developed pores on its surface of AC-1. The broad peaks in the XRD patterns indicated that, all the ACs is amorphous materials. From results, it is concluded that ZnCl2 concentration used in impregnation is effective for development of porosity and surface area of the AC prepared from Sugarcane bagasse.

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Adsorption of Cu2+ Metal Ions on Dithizone-Immobilized Natural Bentonite

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.840.64 ◽

2020 ◽

Vol 840 ◽

pp. 64-70

Author(s):

Dian Mira Fadela ◽

Mudasir Mudasir ◽

Adhitasari Suratman

Keyword(s):

Adsorption Isotherm ◽

Complex Formation ◽

Metal Ions ◽

Electrostatic Interaction ◽

Metal Ion ◽

Synthesis And Characterization ◽

Optimum Conditions ◽

Initial Concentration ◽

Activated Bentonite

The research of adsorption of Cu2+ metal ion on dithizone-immobilized natural bentonite (DNB) had been carried out. The experiment was begun by the activation of natural bentonite with HCl 4 M and dithizone-immobilized on activated bentonite surface. This study included synthesis and characterization of dithizone-immobilized bentonite and its application in adsorption of Cu2+ metal ions. The type of interaction occurred in the adsorption was tested by sequential desorption. The result showed that dithizone successfully immobilized on activated natural bentonite (ANB). The optimum conditions for Cu2+ metal ions adsorption using dithizone-immobilized natural bentonite are at pH 5; 0.1 g mass of adsorbent, with interaction time 60 min, and the initial concentration of ion at 80 ppm. Kinetics and adsorption isotherm studies suggest that the capacity, of the dithizone-immobilized natural bentonite in adsorbing Cu2+ metal ion is significantly improved compared to activated natural bentonite. The adsorption of Cu2+ metal ions by activated natural bentonite was through several interactions dominated by electrostatic interaction (82%). Otherwise, the interaction of dithizone-immobilized natural bentonite with Cu2+ metal ions in the sequence were dominated by the mechanism of complex formation of (75%). The result shows that the immobilization of dithizone changes the type of electrostatic interaction into complex formation.

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Bioinformatics-Aided Identification, Characterization of Fungal Linalool Synthases and Applications in Linalool biosynthesis

10.21203/rs.3.rs-75943/v1 ◽

2020 ◽

Author(s):

Congqiang Zhang ◽

Xixian Chen ◽

Raphael Tze Chuen Lee ◽

Rehka T ◽

Sebastian Mauer-Stroh ◽

...

Keyword(s):

Escherichia Coli ◽

Phylogenetic Analysis ◽

Metabolic Engineering ◽

Bioinformatics Analysis ◽

Personal Care Products ◽

Divergent Evolution ◽

Personal Care ◽

Structural Comparison ◽

Key Residues

Abstract Enzymes empower chemical industries and are the keystone for metabolic engineering. For example, linalool synthases (LSs) are indispensable for the biosynthesis of linalool, an important fragrance used in 60-80% cosmetic and personal care products. However, plant LSs have low activities while expressed in microbes. Aided by bioinformatics analysis, four linalool/nerolidol synthases (LNSs) from various Agaricomycetes were accurately predicted and validated experimentally. Furthermore, we discovered a novel LS with exceptionally high levels of selectivity and activity from Agrocybe pediades, ideal for linalool bioproduction. It effectively converted glucose into enantiopure (R)-linalool in Escherichia coli, 44-fold and 287-fold more efficient than bacterial and plant counterparts, respectively. Phylogenetic analysis indicated the divergent evolution paths for plant, bacterial and fungal LSs. More critically, structural comparison provided catalytic insights in Ap.LS superior specificity and activity, and mutational experiments validated the key residues responsible for the specificity.

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